Quarterlytics / Real Estate / REIT - Specialty / Digital Realty Trust

Digital Realty Trust

dlr · NYSE Real Estate
Claim this profile
Ticker dlr
Exchange NYSE
Sector Real Estate
Industry REIT - Specialty
Employees 1001-5000
← All annual reports
FY2017 Annual Report · Digital Realty Trust
Sign in to download
Loading PDF…
Table of Contents

Index to Financial Statements

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-K

x

¨

Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31, 2017

Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the Transition Period From                     to                     .

Commission file number   001-32336 (Digital Realty Trust, Inc.)
  000-54023 (Digital Realty Trust, L.P.)

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
(Exact name of registrant as specified in its charter)

Maryland (Digital Realty Trust, Inc.)
Maryland (Digital Realty Trust, L.P.)
(State or other jurisdiction of incorporation or organization)
Four Embarcadero Center, Suite 3200
San Francisco, CA
(Address of principal executive offices)

26-0081711
20-2402955
(IRS employer identification number)

94111
(Zip Code)

(415) 738-6500
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Digital Realty Trust, Inc.

Digital Realty Trust, L.P.

Digital Realty Trust, Inc.
Digital Realty Trust, L.P.

Title of each class
Common Stock, $0.01 par value per share

Series C Cumulative Redeemable Perpetual 
Preferred Stock, $0.01 par value per share
Series G Cumulative Redeemable Preferred
Stock, $0.01 par value per share
Series H Cumulative Redeemable Preferred
Stock, $0.01 par value per share
Series I Cumulative Redeemable Preferred 
Stock, $0.01 par value per share
Series J Cumulative Redeemable Preferred 
Stock, $0.01 par value per share
None

Name of each exchange on which registered

New York Stock Exchange
New York Stock Exchange

New York Stock Exchange

New York Stock Exchange

New York Stock Exchange

New York Stock Exchange

None

Securities registered pursuant to Section 12(g) of the Act:

None
Common Units of
Partnership Interest

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Digital Realty Trust, Inc.
Digital Realty Trust, L.P.

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.

Yes   x
    No   o
Yes   o
No   x

Digital Realty Trust, Inc.
Digital Realty Trust, L.P.

Yes   o
No   x
Yes  o
No   x
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or

for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Digital Realty Trust, Inc.
Digital Realty Trust, L.P.

Yes   x
    No   o
Yes   x
    No   o

 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
  
  
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted
pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Digital Realty Trust, Inc.
Digital Realty Trust, L.P.

Yes   x
    No   o
Yes   x
    No   o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of

registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.   o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging growth company. See the

definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Digital Realty Trust, Inc.:

Large accelerated filer x

Non-accelerated filer

o
(Do not check if a smaller reporting company)

Digital Realty Trust, L.P.:

Large accelerated filer

o

Non-accelerated filer

x
 (Do not check if a smaller reporting company)

Accelerated filer

Smaller reporting company

Emerging growth company

Accelerated filer

Smaller reporting company

Emerging growth company

o

o

o

o

o

o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting

standards provided pursuant to Section 13(a) of the Exchange Act.

Digital Realty Trust, Inc.

Digital Realty Trust, L.P.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

Digital Realty Trust, Inc.

          o

          o

Yes   o
No   x

Yes   o
No   x
Digital Realty Trust, L.P.
The aggregate market value of the common equity held by non-affiliates of Digital Realty Trust, Inc. as of June 30, 2017 totaled approximately $18 billion based on the closing price for Digital
Realty Trust, Inc.’s common stock on that day as reported by the New York Stock Exchange. Such value excludes common stock held by executive officers, directors and 10% or greater
stockholders as of June 30, 2017. The identification of 10% or greater stockholders as of June 30, 2017 is based on Schedule 13G and amended Schedule 13G reports publicly filed before
June 30, 2017. This calculation does not reflect a determination that such parties are affiliates for any other purposes.

There is no public trading market for the common units of Digital Realty Trust, L.P. As a result, the aggregate market value of the common units held by non-affiliates of Digital Realty

Trust, L.P. cannot be determined.

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.
Digital Realty Trust, Inc.:

Common Stock, $.01 par value per share

Class

Outstanding at February 26, 2018
205,743,377

Part III incorporates by reference portions of Digital Realty Trust, Inc.’s Proxy Statement for its 2018 Annual Meeting of Stockholders which the registrants anticipate will be filed no later

than 120 days after the end of its fiscal year pursuant to Regulation 14A.

DOCUMENTS INCORPORATED BY REFERENCE

 
 
 
 
Table of Contents

Index to Financial Statements

EXPLANATORY NOTE

This report combines the annual reports on Form 10-K for the year ended December 31, 2017 of Digital Realty Trust, Inc., a Maryland corporation, and

Digital Realty Trust, L.P., a Maryland limited partnership, of which Digital Realty Trust, Inc. is the sole general partner. Unless otherwise indicated or unless the
context requires otherwise, all references in this report to “we,” “us,” “our,” “our Company” or “the Company” refer to Digital Realty Trust, Inc. together with its
consolidated subsidiaries, including Digital Realty Trust, L.P. Unless otherwise indicated or unless the context requires otherwise, all references to “our Operating
Partnership” or “the Operating Partnership” refer to Digital Realty Trust, L.P. together with its consolidated subsidiaries.

Digital Realty Trust, Inc. is a real estate investment trust, or REIT, and the sole general partner of Digital Realty Trust, L.P. As of December 31, 2017 ,
Digital Realty Trust, Inc. owned an approximate 96.0% common general partnership interest in Digital Realty Trust, L.P. The remaining approximate 4.0% of the
common limited partnership interests of Digital Realty Trust, L.P. are owned by non-affiliated third parties and certain directors and officers of Digital Realty
Trust, Inc. As of December 31, 2017 , Digital Realty Trust, Inc. owned all of the preferred limited partnership interests of Digital Realty Trust, L.P. As the sole
general partner of Digital Realty Trust, L.P., Digital Realty Trust, Inc. has the full, exclusive and complete responsibility for the operating partnership’s day-to-day
management and control.

We believe combining the annual reports on Form 10-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. into this single report results in the

following benefits:

•

•

•

enhancing investors’ understanding of our Company and our Operating Partnership by enabling investors to view the business as a whole in the same
manner as management views and operates the business;
eliminating duplicative disclosure and providing a more streamlined and readable presentation since a substantial portion of the disclosure applies to
both our Company and our Operating Partnership; and
creating time and cost efficiencies through the preparation of one combined report instead of two separate reports.

There are a few differences between our Company and our Operating Partnership, which are reflected in the disclosure in this report. We believe it is important to
understand the differences between our Company and our Operating Partnership in the context of how we operate as an interrelated consolidated company. Digital
Realty Trust, Inc. is a REIT, whose only material asset is its ownership of partnership interests of Digital Realty Trust, L.P. As a result, Digital Realty Trust, Inc.
does not conduct business itself, other than acting as the sole general partner of Digital Realty Trust, L.P., issuing public equity from time to time and guaranteeing
certain unsecured debt of Digital Realty Trust, L.P. and certain of its subsidiaries. Digital Realty Trust, Inc. itself does not issue any indebtedness but guarantees
the unsecured debt of Digital Realty Trust, L.P. and certain of its subsidiaries and affiliates, as disclosed in this report. Digital Realty Trust, L.P. holds substantially
all the assets of the Company and holds the ownership interests in the Company’s joint ventures. Digital Realty Trust, L.P. conducts the operations of the business
and is structured as a partnership with no publicly traded equity. Except for net proceeds from public equity issuances by Digital Realty Trust, Inc., which are
generally contributed to Digital Realty Trust, L.P. in exchange for partnership units, Digital Realty Trust, L.P. generates the capital required by the Company’s
business through Digital Realty Trust, L.P.’s operations, by Digital Realty Trust, L.P.’s direct or indirect incurrence of indebtedness or through the issuance of
partnership units.

The presentation of noncontrolling interests in operating partnership, stockholders’ equity and partners’ capital are the main areas of difference between the
consolidated financial statements of Digital Realty Trust, Inc. and those of Digital Realty Trust, L.P. The common limited partnership interests held by the limited
partners in Digital Realty Trust, L.P. are presented as limited partners’ capital within partners’ capital in Digital Realty Trust, L.P.’s consolidated financial
statements and as noncontrolling interests in operating partnership within equity in Digital Realty Trust, Inc.’s consolidated financial statements. The common and
preferred partnership interests held by Digital Realty Trust, Inc. in Digital Realty Trust, L.P. are presented as general partner’s capital within partners’ capital in
Digital Realty Trust, L.P.’s consolidated financial statements and as preferred stock, common stock, additional paid-in capital and accumulated dividends in excess
of earnings within stockholders’ equity in Digital Realty Trust, Inc.’s consolidated financial statements. The differences in the presentations between stockholders’
equity and partners’ capital result from the differences in the equity issued at the Digital Realty Trust, Inc. and the Digital Realty Trust, L.P. levels.

Table of Contents

Index to Financial Statements

To help investors understand the significant differences between the Company and the Operating Partnership, this report presents the following separate

sections for each of the Company and the Operating Partnership:

•
•

•
•
•

consolidated financial statements;
the following notes to the consolidated financial statements:
•
•
•

Debt of the Company and Debt of the Operating Partnership;
Income per Share and Income per Unit;
Equity and Accumulated Other Comprehensive Loss, Net of the Company and Capital and Accumulated Other Comprehensive Income
(Loss) of the Operating Partnership; and
Quarterly Financial Information;

•
Liquidity and Capital Resources in Management’s Discussion and Analysis of Financial Condition and Results of Operations;
Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities; and
Selected Financial Data.

This report also includes separate Item 9A. Controls and Procedures sections and separate Exhibit 31 and 32 certifications for each of the Company and the
Operating Partnership in order to establish that the Chief Executive Officer and Chief Financial Officer of each entity has made the requisite certification and that
the Company and the Operating Partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934 and 18 U.S.C. §1350.

In order to highlight the differences between the Company and the Operating Partnership, the separate sections in this report for the Company and the
Operating Partnership specifically refer to the Company and the Operating Partnership. In the sections that combine disclosure of the Company and the Operating
Partnership, this report refers to actions or holdings as being actions or holdings of the Company. Although the Operating Partnership is generally the entity that
enters into contracts and joint ventures and holds assets and debt, reference to the Company is appropriate because the business is one enterprise and the Company
operates the business through the Operating Partnership.

As general partner with control of the Operating Partnership, Digital Realty Trust, Inc. consolidates the Operating Partnership for financial reporting
purposes, and it does not have significant assets other than its investment in the Operating Partnership. Therefore, the assets and liabilities of Digital Realty Trust,
Inc. and Digital Realty Trust, L.P. are the same on their respective consolidated financial statements. The separate discussions of Digital Realty Trust, Inc. and
Digital Realty Trust, L.P. in this report should be read in conjunction with each other to understand the results of the Company on a consolidated basis and how
management operates the Company.

In this report, “properties” and “buildings” refer to all or any of the buildings in our portfolio, including data centers and non-data centers, and “data centers”

refers only to the properties or buildings in our portfolio that contain data center space.

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND DIGITAL REALTY TRUST, L.P.
FORM 10-K
FOR THE YEAR ENDED DECEMBER 31, 2017

TABLE OF CONTENTS

PART I.

ITEM 1.

Business

ITEM 1A.

Risk Factors

ITEM 1B.

Unresolved Staff Comments

ITEM 2.

Properties

ITEM 3.

Legal Proceedings

ITEM 4.

Mine Safety Disclosures

PART II.

ITEM 5.

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

ITEM 6.

Selected Financial Data

ITEM 7.

Management’s Discussion and Analysis of Financial Condition and Results of Operations

ITEM 7A.

Quantitative and Qualitative Disclosures About Market Risk

ITEM 8.

Financial Statements and Supplementary Data

ITEM 9.

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

ITEM 9A.

Controls and Procedures

ITEM 9B.

Other Information

PART III.

ITEM 10.

Directors, Executive Officers and Corporate Governance

ITEM 11.

Executive Compensation

ITEM 12.

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

ITEM 13.

Certain Relationships and Related Transactions and Director Independence

ITEM 14.

Principal Accounting Fees and Services

PART IV.

ITEM 15.

Exhibits and Financial Statement Schedules

ITEM 16.

Form 10-K Summary

SIGNATURES

PAGE NO.

1

12

38

38

43

43

44

47

52

83

85

181

181

182

183

183

183

183

183

184

191

192

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

ITEM 1.    BUSINESS

General

PART I

Digital Realty Trust, Inc. through its controlling interest in Digital Realty Trust, L.P. and its subsidiaries is a leading global provider of data center,

colocation and interconnection solutions for customers across a variety of industry verticals ranging from cloud and information technology services,
communications and social networking to financial services, manufacturing, energy, healthcare, and consumer products. Digital Realty Trust, L.P., a Maryland
limited partnership, is the entity through which Digital Realty Trust, Inc., a Maryland corporation, conducts its business of owning, acquiring, developing and
operating data centers. Digital Realty Trust, Inc. operates as a REIT for federal income tax purposes.

On September 14, 2017, we completed the acquisition of DuPont Fabros Technology, Inc., or DFT, in an all-stock merger, which we refer to as the DFT

Merger, for equity consideration of approximately $6.2 billion. We believe this transaction expanded our reach with a complementary portfolio in top U.S.
metropolitan areas while enhancing our ability to meet the growing demand for hyper-scale and public cloud solutions and solidifying our blue-chip customer base.

On July 5, 2016, we completed the acquisition of a portfolio of eight high-quality, carrier-neutral data centers in Europe, which we refer to as the European

Portfolio Acquisition, for a total purchase price of $818.9 million (based on the exchange rate at the date of acquisition). We believe the acquisition of these highly
strategic assets in Amsterdam, Frankfurt and London enhanced our colocation and interconnection platform globally.

On October 9, 2015, we acquired Telx Holdings, Inc., or Telx, a leading U.S. provider of data center colocation, interconnection and cloud enablement
solutions, which we refer to as the Telx Acquisition, for approximately $1.9 billion. We believe this acquisition established us as a leading provider of colocation
and interconnection solutions in the U.S., complementing our existing business.

As of December 31, 2017 , our portfolio consisted of 205 data centers, including seven held-for-sale data centers and 18 data centers held as investments in

unconsolidated joint ventures, of which 152 are located throughout the United States, 38 are located in Europe, seven are located in Asia, five are located in
Australia and three are located in Canada.

We are diversified across 33 major metropolitan areas throughout 12 countries where data center and technology customers are concentrated, including the

Atlanta, Boston, Chicago, Dallas, Los Angeles, New York, Northern Virginia, Phoenix, San Francisco, Seattle and Silicon Valley metropolitan areas in the United
States; the Amsterdam, Dublin, Frankfurt and London metropolitan areas in Europe; and the Hong Kong, Melbourne, Osaka, Singapore, Sydney and Tokyo
metropolitan areas in the Asia Pacific region. Our portfolio contains a total of approximately 32.1 million square feet, including approximately 2.7 million square
feet of space under active development, which includes current base building and data center projects in progress, as well as approximately 1.7 million square feet
of space held for future development, which includes space held for future data center development and excludes space under active development. The 18 data
centers held as investments in unconsolidated joint ventures have an aggregate of approximately 2.2 million rentable square feet. The 21 parcels of developable
land we own comprise approximately 539 acres. A significant component of our current and future growth is expected to be generated through the development of
our existing space held for development and acquisition of new properties. As of December 31, 2017, our portfolio, including the 18 data centers held as
investments in unconsolidated joint ventures and excluding space under active development and space held for future development, was approximately 90.2%
leased.

Our portfolio is comprised of data centers, which provide secure, continuously available environments for the exchange, processing and storage of critical

electronic information. Data centers are used for digital communication, disaster recovery purposes, transaction processing and housing mission-critical corporate
IT applications. Certain of our data centers, which we refer to as Internet gateways, are highly interconnected, network-dense facilities that serve as hubs for
Internet and data communications within and between major metropolitan areas. We believe Internet gateways are highly valuable and would be extremely difficult
to replicate.

1

 
Table of Contents

Index to Financial Statements

The locations of and improvements to our data centers, the network density, interconnection infrastructure and connectivity-centric customers in certain of

our facilities, and our comprehensive product offerings are critical to our customers’ businesses, which we believe results in high occupancy levels, longer average
lease terms and customer relationships, as well as lower turnover. In addition, many of our data centers contain significant improvements that have been installed at
our customers’ expense. The tenant improvements in our data centers are generally readily adaptable for use by similar customers.

Digital Realty Trust, Inc. was incorporated in the state of Maryland on March 9, 2004. Digital Realty Trust, L.P. was organized in the state of Maryland on

July 21, 2004. Our principal executive offices are located at Four Embarcadero Center, Suite 3200, San Francisco, California 94111. Our telephone number at that
location is (415) 738-6500. Our website is located at www.digitalrealty.com. The information found on, or otherwise accessible through, our website is not
incorporated into, and does not form a part of, this annual report or any other report or document we file with or furnish to the U.S. Securities and Exchange
Commission, or the SEC.

Our Competitive Strengths

We believe we distinguish ourselves from other owners, acquirers, developers and operators of data centers through our competitive strengths, which include:

•

Global Platform. We believe that a high-quality, highly interconnected global portfolio such as ours could not be easily replicated today on a cost-
competitive basis.

•

•

Presence
in
Key
Metropolitan
Areas
. Our portfolio comprises a network of 205 state-of-the-art, interconnected data centers, which are
concentrated in 33 major metropolitan areas across 12 countries on four continents. Our portfolio is geographically diversified, so that no single
metropolitan area represented more than approximately 21.6% of the aggregate annualized rent of our portfolio as of December 31, 2017.
Through strategic investments, we have grown our presence in key metropolitan areas throughout North American, Europe, Asia and Australia.
The DFT Merger in 2017 enhanced our data center offerings in strategic and complementary U.S. metropolitan areas. The Telx Acquisition in
2015 established our colocation and interconnection platform in the U.S. and the European Portfolio Acquisition in 2016 expanded our
colocation and interconnection platform in Europe, each transaction enhancing our presence in top-tier locations throughout the U.S. and
Europe.

Secure
and
Network-Rich
Data
Centers
. Our data centers are physically secure, network-rich and equipped to meet the power and cooling
requirements of smaller footprints up to the most demanding IT applications. Many of our data centers are located on major aggregation points
formed by the physical presence of multiple major telecommunications service providers, which reduces our customers’ costs and operational
risks and enhances the attractiveness of our properties. In addition, our strategically located global data center campuses offer our customers the
ability to expand their global footprint as their businesses grow, while our connectivity offerings on our campuses enhance the capabilities and
attractiveness of these facilities. Further, the network density, interconnection infrastructure and connectivity-centric customers in certain of our
data centers has led to the organic formation of densely interconnected ecosystems that are difficult for others to replicate and deliver added
value to our customers.

•

Comprehensive Product Offering. We provide flexible, customer-centric data center solutions designed to meet the needs of companies of all sizes
across multiple industry verticals around the world. Our data centers and comprehensive suite of product offerings are scalable to meet our customers’
needs, from a single rack or cabinet, up to multi-megawatt deployments, along with connectivity, interconnection and solutions to support their hybrid
cloud architecture requirements.

•

Colocation,
Scale
and
Hyper-Scale
Platform
. Our colocation and Turn-Key Flex ® data centers are move-in ready, physically secure facilities
with the power and cooling capabilities to support customers requiring a single rack or cabinet up to mission-critical IT enterprise applications.
We believe our colocation and Turn-Key Flex ® facilities are effective solutions for customers who may lack the bandwidth, capital budget,

2

Table of Contents

Index to Financial Statements

expertise or desire to provide their own extensive data center infrastructure, management and security. For customers who possess the ability to
build and operate their own facility, our Powered Base Building ® solution provides the physical location, requisite power and network access
necessary to support a state-of-the-art data center. Our data center campuses offer our customers the opportunity to expand in or near their
existing deployments within our data center campuses. Our Critical Facilities Management ® services and team of technical engineers and data
center operations experts provide 24/7 support for these mission-critical facilities.

•

Interconnection
and
Cloud-Enablement
Platform
. Through our recent investments and strategic partnerships, we have significantly expanded
our capabilities as a leading provider of interconnection and cloud-enablement services globally. We believe interconnection is an attractive line
of business that would be difficult to build organically and enhances the overall value proposition of our colocation, scale and hyper-scale data
center product offerings. Furthermore, through new product offerings, such as our Service Exchange, and partnerships with cloud service
providers, we are able to support our customers’ hybrid cloud architecture requirements. Over the past few years, we have expanded our
product mix to appeal to a broader spectrum of data center customers, especially those seeking to support a greater portion of their data center
requirements through a single provider.

•

Global and Diverse Customer Base. Our portfolio has attracted a high-quality, diversified mix of customers. We have more than 2,300 customers in
total, and no single customer represented more than approximately 6.5% of the aggregate annualized rent of our portfolio as of December 31, 2017.

•

•

Global
Customer
Base
across
a
Wide
Variety
of
Industry
Sectors
. We use our in-depth knowledge of requirements for and trends impacting
cloud and information technology service providers, content providers, network and communications providers, and other data center users,
including enterprise customers, to market our data centers to meet these customers’ specific technology needs. At December 31, 2017, our
customers represented a variety of industry verticals, ranging from cloud and information technology services, communications and social
networking to financial services, manufacturing, energy, gaming, life sciences and consumer products. Our customers are increasingly
launching multi-regional deployments and growing with us internationally. Our largest customer, IBM, accounted for approximately 6.5% of
the aggregate annualized rent as of December 31, 2017 and no other single customer accounted for more than approximately 6.2% of the
aggregate annualized rent of our portfolio.

Proven
Experience
Attracting
and
Retaining
Customers
. Our specialized data center salesforce, which is aligned to meet our customers’
needs for global, enterprise and network solutions, provides a robust pipeline of new customers, while existing customers continue to grow and
expand their utilization of our services to support a greater portion of their IT needs. During the year ended December 31, 2017, we commenced
new leases totaling approximately 1.2 million square feet, which represent approximately $184.1 million in annualized GAAP rent, and renewal
leases totaling approximately 2.1 million square feet, which represent approximately $241.3 million in annualized GAAP rent. During the year
ended December 31, 2017, we signed new leases totaling approximately 1.1 million square feet, which represent approximately $168.5 million
in annualized GAAP rent, and renewal leases totaling approximately 2.0 million square feet, which represent approximately $234.2 million in
annualized GAAP rent. During the year ended December 31, 2017, we signed new leases with existing customers totaling approximately 1.0
million square feet, which represent approximately $152.6 million in annualized GAAP rent.

•

Demonstrated Investment Acumen. We have developed detailed, standardized procedures for evaluating acquisitions and investments, including
income-producing properties as well as vacant buildings and land suitable for development, to ensure that they meet our strategic, financial, technical
and other criteria. These procedures, together with our in-depth knowledge of the technology, data center and real estate industries, allow us to identify
strategically located properties and evaluate investment opportunities efficiently and, as appropriate, commit and close quickly. Our investment-grade
ratings, along with our broad network of contacts within the data center industry, enable us to effectively capitalize on acquisition and investment
opportunities.

3

 
 
Table of Contents

Index to Financial Statements

•

•

Differentiating Development Advantages. Our extensive development activity, operating scale and process-based approach to data center design,
construction and operations result in significant cost savings and added value for our customers. We have leveraged our purchasing power by securing
global purchasing agreements and developing relationships with major equipment manufacturers, reducing costs and shortening delivery timeframes on
key components, including major mechanical and electrical equipment. Utilizing our innovative modular data center design, we deliver what we believe
to be a technically superior data center environment at significant cost savings. In addition, by utilizing our POD Architecture® to develop new Turn-
Key Flex ® facilities in our existing Powered Base Building ® facilities, on average we can deliver a fully commissioned facility in under 30 weeks.
Finally, our access to capital and investment-grade ratings allow us to provide data center solutions for customers who do not want to invest their own
capital.

Experienced and Committed Management Team and Organization. Our senior management team has many years of experience in the technology
and/or real estate industries, including experience as investors in and advisors to technology companies. We believe that our senior management team’s
extensive knowledge of both the technology and the real estate industries provides us with a key competitive advantage. Further, a significant portion of
compensation for our senior management team and directors is in the form of common equity interests in our Company. We also maintain minimum
stock ownership requirements for our senior management team and directors, further aligning their interests with those of external stockholders, as well
as an employee stock purchase plan, which encourages our employees to increase their ownership in the Company.

Business and Growth Strategies

Our primary business objectives are to maximize: (i) sustainable long-term growth in earnings and funds from operations per share and unit, (ii) cash flow

and returns to our stockholders and our Operating Partnership’s unitholders through the payment of distributions and (iii) return on invested capital, which we
expect to accomplish by achieving superior risk-adjusted returns, prudently allocating capital, diversifying our product offerings and driving revenue growth and
operating efficiencies.

•

•

Achieve Superior Returns. We believe that achieving appropriate risk-adjusted returns on our business, including on our development pipeline and
leasing transactions, will deliver superior stockholder returns. At December 31, 2017, we had approximately 2.7 million square feet of space under
active development for Turn-Key Flex ® and Powered Base Building ® products in seven U.S. metropolitan areas, four European metropolitan areas,
two Australian metropolitan areas, one Canadian metropolitan area and one Asian metropolitan area, consisting of approximately 1.3 million square
feet of base building construction and 1.4 million square feet of data center construction. We may continue to build out our development pipeline when
justified by anticipated returns. We also believe that providing an even stronger value proposition to our customers, including through new and more
comprehensive product offerings, as well as continuing to improve operational efficiencies, will further drive improved returns for our business.

Prudently Allocate Capital. We believe that the accretive deployment of capital at sufficiently positive spreads above our cost of capital enables us to
increase cash flow and create long-term stockholder value.

•

•

Strategic
and
Complementary
Investments
. We have developed significant expertise at underwriting, financing and executing data center
investment opportunities. We employ a collaborative approach to deal analysis, risk management and asset allocation, focusing on key
elements, such as market fundamentals, accessibility to fiber and power, and the local regulatory environment. In addition, the specialized
nature of data centers makes these investment opportunities more difficult for traditional real estate investors to underwrite, resulting in reduced
competition for investments relative to other property types. We believe this dynamic creates an opportunity for us to generate attractive risk-
adjusted returns on our capital.

Preserve
the
Flexibility
of
Our
Balance
Sheet
. We are committed to maintaining a conservative capital structure. We target a debt-to-adjusted
EBITDA ratio at or less than 5.5x, fixed charge coverage of greater than three times, and floating rate debt at less than 20% of total outstanding
debt. In addition, we strive to maintain a well-laddered debt maturity schedule, and we seek to maximize the menu of our available sources of
capital, while minimizing the related cost. Since Digital Realty Trust Inc.’s initial public offering in 2004, we have raised approximately $27.3
billion of capital through common, preferred and convertible preferred equity offerings, exchangeable debt offerings, non-exchangeable bond
offerings, our global revolving credit facility, our term loan facility, a senior notes shelf facility, secured mortgage financings and re-financings,

4

  
 
  
Table of Contents

Index to Financial Statements

joint venture partnerships and the sale of non-core assets. We endeavor to maintain financial flexibility while using our liquidity and access to
capital to support operations, including our acquisition, investment, leasing and development programs and global campus expansion, which are
important sources of our growth.

•

•

Offer Comprehensive and Diverse Products. We have diversified our product offering, through acquisitions and organically, and believe that we
have one of the most comprehensive suites of global data center solutions available to customers from a single provider.

•

•

Global
Service
Infrastructure
Platform
. With the recent DFT Merger, which enhanced our portfolio of scale and hyper-scale data centers, the
European Portfolio Acquisition and the Telx Acquisition, which established us as a leading provider of colocation, interconnection and cloud-
enablement services globally, we are able to offer a broader range of data center solutions to meet our customers’ needs, from a single rack or
cabinet to multi-megawatt deployments. We believe our products like Service Exchange and our partnerships with managed services and cloud
service providers further enhance the attractiveness of our data centers.

Provide
Foundational
Services
to
Enable
Customers
and
Partners
. We believe that the real estate platform, through which we offer the
foundational services of space, power and connectivity, will enable our customers and partners to serve their customers and grow their
businesses. We believe our Internet gateway data centers, individual data centers and data center campuses are attractive to a wide variety of
customers and partners of all sizes. Furthermore, we believe our colocation and interconnection offerings, as well as the densely connected
ecosystems that have developed within our facilities, and the availability and scalability of our comprehensive suite of products are valuable
and critical to our customers and partners.

Drive Revenue Growth and Operating Efficiencies.   We aggressively manage our properties to maximize cash flow and control costs by leveraging
our scale to drive operating efficiencies.

Leverage
Strong
Industry
Relationships
. We use our strong industry relationships with national and regional corporate enterprise information
technology groups and technology-intensive companies to identify and solve their data center needs. Our sales professionals are technology and
real estate industry specialists who can develop complex facility solutions for the most demanding data center and other technology customers.

Maximize
Cash
Flow
. We often acquire properties with substantial in-place cash flow and some vacancy, which enables us to create upside
through lease-up. We control our costs by negotiating expense pass-through provisions in customer agreements for operating expenses,
including power costs and certain capital expenditure. We have also focused on centralizing functions and optimizing operations as well as
improving processes and technologies. We believe that expanding our global data center campuses will also contribute to operating efficiencies
because we expect to achieve economies of scale on our campus environments.

•

•

Sustainability

We believe that addressing sustainability by driving environmental efficiency through the implementation of cost-effective design and use of renewable

energy serves as a key differentiator enabling us to deliver products that help attract and retain customers, generate cash flow, and manage operational risks. Our
sustainability platform includes the following:

•

•

We manage our data centers so that they offer high degrees of operational efficiencies for our customers. We benchmark and certify certain data centers
in accordance with the U.S. Environmental Protection Agency, or EPA, Energy Star program, LEED TM , BREEAM, as well as other recognized third-
party rating standards. A portion of our U.S. portfolio is enrolled in the U.S. Department of Energy’s Better Buildings Challenge for Data Centers.
We have developed solutions to help our customers efficiently utilize energy and water, and to help them procure renewable energy.

In 2017, we received Nareit’s “Leader in the Light” award for data centers, recognizing our sustainability and energy-efficiency achievements, and we ranked

6 th on the EPA’s Top 30 Tech and Telecom list of the largest green power users.

5

 
Table of Contents

Index to Financial Statements

Energy and resource management considerations are integrated into our business decisions. For the operating portfolio, annual capital expense investment
planning identifies and evaluates resource efficiency project opportunities in a parallel but distinct process from non-resource-impacting capital investments. For
acquisitions and new development activity, resiliency risks, resource availability, and renewable energy access are considered. Our design and construction process
incorporates sustainable features that support resource efficiency during both construction as well as during eventual operational activity at the sites. We consider
water availability, cost, and alternate supply solutions to potable water such as municipally supplied reclaimed water. We also consider cooling system designs to
maximize ‘free cooling’ and reduce or eliminate the site’s reliance on access to water for cooling.

Sustainable Data Center Ratings

Data centers receiving third-party sustainable ratings in 2017 totaled 830,729 square feet, or approximately 62% of our total shell completions in 2017.

We received the following sustainable data center ratings for all, or a portion of, the following sites:

Data Center

9377 W Grand Avenue

2299 Busse Road

21745 Sir Timothy Drive

Metropolitan Area

Rating Framework

Level Attained

  Chicago

  Chicago

  Northern Virginia

LEED (1)
LEED  (1)(2)
LEED  (1)(3)

Silver

Silver

Gold

LEED TM : Leadership in Energy and Environmental Design.
Received by DFT in February 2017.
Received by DFT in August 2017.

In 2017, we achieved Energy Star for Data Centers recognition for all, or a portion of, the following sites, representing 16.9% of our U.S. operating portfolio

(1)
(2)
(3)

(1) :

Data Center

375 Riverside Parkway

950 E Collins Boulevard

2260 E El Segundo Boulevard

1201 Comstock Street

1525 Comstock Street

1725 Comstock Street

2805 Lafayette Street

3105 Alfred Street

4040 Lafayette Center Drive

4050 Lafayette Center Drive

44060 Digital Loudoun Plaza

Metropolitan Area

  Atlanta

  Dallas

  Los Angeles

  Santa Clara

  Santa Clara

  Santa Clara

  Santa Clara

  Santa Clara

  Northern Virginia

  Northern Virginia

  Northern Virginia

(1)

Percentage is based on U.S. stabilized assets, excluding Powered Base Building space, space under active development, space held for development, and
space held in unconsolidated joint ventures.

Resource Conservation

We seek to proactively identify and support opportunities to efficiently utilize resources, such as energy and water, throughout our operating portfolio. In

2017, the following sites completed conservation projects primarily focusing on energy and water conservation:

6

    
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

 Property

100 Delawanna

111 8th Avenue

120 E. Van Buren Street

128 First Avenue

200 Paul Avenue

2121 S. Price Road

2323 Bryan Street

250 Williams Street

2501 S. State Highway

350 E. Cermak Road

56 Marietta

60 Hudson Street

Metropolitan Area

  New York

  New York

  Phoenix

  Boston

  San Francisco

  Phoenix

  Dallas

  Atlanta

  Dallas

  Chicago

  Atlanta

  New York

In 2017, we verified attainment of our energy intensity target under the U.S. Department of Energy’s Better Buildings Challenge, an initiative to reduce non-

IT energy intensity 20% by 2024 across a 0.79 million square foot portion of our portfolio compared to a 2013 baseline. Energy savings have been achieved by
implementing HVAC upgrades, including variable frequency drive implementations, containment deployments and controls optimizations. Other energy savings
initiatives include air management improvements and modifications to our SLAs with customers to allow for enhanced economizer operation. Our properties
enrolled in the Better Buildings Challenge demonstrated cumulative reductions in non-IT energy intensity of 25% compared to a 2013 baseline, as reviewed via the
U.S. Department of Energy’s Better Buildings Challenge.

Renewable Energy

In 2017, we entered into power purchase agreements to secure the renewable energy attributes from a wind farm in Illinois and a solar farm in North

Carolina. Our previously disclosed Texas wind farm power purchase agreement produced 365,184 MWh of renewable energy credits in 2017.

SASB

The Sustainability Accounting Standards Board (“SASB”) issued the Real Estate Owners, Developers & Investment Trusts Sustainability Accounting

Standard guidance, which outlines proposed disclosure topics and accounting metrics for the real estate industry. We provide data on energy and water
management metrics that best correlate with our business and industry as indicated in the following sections. The energy and water data we use is primarily
collected and reviewed by third parties who compile the data from property utility statements. These metrics enable us to better manage our portfolio, track our
progress on resource efficiency improvements, and track renewable energy sourcing.

Energy Data

Energy Consumption
Data Coverage as % of
Floor Area

Total Energy
Consumed by
Portfolio Area with
Data Coverage
(MWh) (2)

Grid electricity
consumption as a %
of Energy
Consumption

% of Energy
Generated From
Renewable
Resources  (3)

Like-for-Like
Change in Energy
Consumption of
Portfolio Area with
Data Coverage (4)

MWh per Occupied
kW (5)

MWh per Occupied
kW
Year over Year
% Change

84%

77%

3,699,472

3,252,836

95%

95%

23.4%

9.5%

2.5%

n/a

6.50

6.90

(5.8)%

n/a

Year  (1)

2016

2015

(1)

Full-year 2017 energy data is not currently available. The most recent full year for which energy data is available is 2016.

7

 
 
Table of Contents

Index to Financial Statements

(2)

(3)

(4)

(5)

The scope of energy includes: energy purchased from sources external to the Company and its customers; energy produced by the Company and its
customers (i.e., self-generated); and energy from all other sources, including direct fuel usage, purchased electricity, and purchased chilled water.
Excludes renewable energy supplied by standard baseline utility fuel mix. Includes above-baseline utility renewables (e.g., green tariffs), Renewable
Energy Credit (REC) purchases and RECs generated by the Company.
Data reported in MWh on a like-for-like comparison excludes properties which were acquired, disposed, under development or have been largely
refurbished during the reported year.
We provide a “MWh per occupied kW” metric to assess relative resource use intensity. Excludes kW associated with Powered Base Building space.

Water Data

Year  (1)

2016

2015

Water Consumption Data
Coverage as % of Floor Area

Total Water Consumed
by Portfolio Area with
Data Coverage (kGal) (2)

Like-for-Like Change in
Water Consumption of
Portfolio Area with Data
Coverage  (3)

kGal per Occupied kW  (4)

64%

60%

459,127

403,373

(2.0)%

n/a

0.81

0.86

Gal per Occupied kW
Year over Year
% Change

(5.8)%

n/a

(1)
(2)
(3)
(4)

Full-year 2017 water data is not currently available. The most recent full year for which water data is available is 2016.
Data reported in kilo-gallons (kGal). The scope of water consumed includes potable and non-potable water purchased from third-party suppliers.
The like-for-like comparison excludes properties which were acquired, disposed, under development or largely refurbished during the reported year.
We provide a “kGal per occupied kW” metric to assess relative resource use intensity. Excludes kGal associated with Powered Base Building space.

Competition

We compete with numerous data center developers, owners and operators, many of whom own or operate properties similar to ours in some of the same

metropolitan areas where our data centers are located, including CoreSite Realty Corporation, CyrusOne Inc., Equinix, Inc., QTS Realty Trust, Inc., Switch, Inc.
and various local developers in the U.S., as well as Global Switch Holdings Limited and various regional operators in Europe, Asia and Australia. If our
competitors offer space that our customers or potential customers perceive to be superior to ours based on numerous factors, including available power, security
considerations, location, or connectivity, or if they offer rental rates below current market rates, or below the rental rates we are offering, we may lose customers or
potential customers or be required to incur costs to improve our properties or lower our rental rates. In addition, several of our competitors have the financial and
technical ability to develop competitive data centers. If the supply of competitive data centers were to increase significantly, rental rates may be reduced or we may
face delays in leasing, or be unable to lease our vacant space, including space that we develop. Finally, if customers or potential customers require products or
services that we do not offer, we may not be able to meet those customers’ needs. Our financial condition, results of operations, cash flow, cash available for
distribution and ability to satisfy our debt service obligations could be materially adversely affected as a result of any or all of these factors.

Geographic Information

Operating revenues from properties in the United States were $1.9 billion , $1.7 billion and $1.4 billion and outside the United States were $0.5 billion , $0.4

billion and $0.4 billion for the years ended December 31, 2017 , 2016 and 2015 , respectively. We had investments in real estate located in the United States of
$10.5 billion , $6.3 billion and $6.1 billion and outside the United States of $3.1 billion , $2.6 billion and $2.6 billion as of December 31, 2017 , 2016 and 2015 ,
respectively.

Operating revenues from properties located in the United Kingdom were $0.3 billion , $0.2 billion and $0.2 billion , or 11.2% , 11.1% and 12.3% of total

operating revenues, for the years ended December 31, 2017 , 2016 and 2015 , respectively. No other foreign country comprised more than 10% of total operating
revenues for each of these years. We had investments in real estate located in the United Kingdom of $1.7 billion , $1.5 billion and $1.6 billion , or 12.1% , 16.6%
and 18.8% of total

8

Table of Contents

Index to Financial Statements

investments in real estate, as of December 31, 2017 , 2016 and 2015 , respectively. No other foreign country comprised more than 10% of total investments in real
estate as of each of December 31, 2017 , 2016 and 2015 . See “Risk Factors—Ownership of data centers located outside of the United States subjects us to foreign
currency and related risks which may adversely impact our ability to make distributions”, “—Our international activities are subject to unique risks different than
those faced by us in the United States and we may not be able to effectively manage our international business” and “—We face risks with our international
acquisitions associated with investing in unfamiliar metropolitan areas” for risks relating to our international operations.

Regulation

General

Our properties are subject to various laws, ordinances and regulations, including regulations relating to common areas. We believe that each of our properties

as of December 31, 2017 has the necessary permits and approvals to operate.

Americans
with
Disabilities
Act

Our properties must comply with Title III of the Americans with Disabilities Act of 1990, or the ADA, to the extent that such properties are “public
accommodations” as defined by the ADA. The ADA may require removal of structural barriers to access by persons with disabilities in certain public areas of our
properties where such removal is readily achievable. We believe that our properties are in substantial compliance with the ADA and that we will not be required to
make substantial capital expenditures to address the requirements of the ADA. However, noncompliance with the ADA could result in imposition of fines or an
award of damages to private litigants. The obligation to make readily achievable accommodations is an ongoing one, and we will continue to assess our properties
and to make alterations as appropriate in this respect.

Environmental
Matters

Under various laws relating to the protection of the environment in the United States, as well as in many jurisdictions in Europe and Asia, a current or
previous owner or operator of real estate may be liable for contamination resulting from the presence or discharge of hazardous or toxic substances at that property,
and may be required to investigate and clean up such contamination at or emanating from that property. Such laws often impose liability without regard to whether
the owner or operator knew of, or was responsible for, the presence of the contaminants, and the liability may be joint and several. In the United States, the
Comprehensive Environmental Response, Compensation, and Liability Act of 1980, or CERCLA, established a regulatory and remedial program intended to
provide for the investigation and clean-up of facilities where, or from which, a release of any hazardous substance into the environment has occurred or is
threatened. CERCLA’s primary mechanism for remedying such problems is to impose strict joint and several liability for clean-up of facilities on current owners
and operators of the site, former owners and operators of the site at the time of the disposal of the hazardous substances, any person who arranges for the
transportation, disposal or treatment of the hazardous substances, and the transporters who select the disposal and treatment facilities, regardless of the care
exercised by such persons. CERCLA also imposes liability for the cost of evaluating and remedying any damage to natural resources. The costs of CERCLA
investigation and clean-up can be very substantial. CERCLA also authorizes the imposition of a lien in favor of the United States on all real property subject to, or
affected by, a remedial action for all costs for which a party is liable. Subject to certain procedural restrictions, CERCLA gives a responsible party the right to
bring a contribution action against other responsible parties for their allocable shares of investigative and remedial costs. Our ability to obtain reimbursement from
others for their allocable shares of such costs would be limited by our ability to find other responsible parties and prove the extent of their responsibility, their
financial resources, and other procedural requirements. Various state laws, as well as laws in many jurisdictions in Europe and Asia, such as the Environmental
Liability Directive (2004/35/EC) in Europe, also impose in certain cases strict joint and several liability for investigation, clean-up and other damages associated
with hazardous substance releases.

Previous owners used some of our properties for industrial and retail purposes, and those properties may contain some level of environmental contamination.
Independent environmental consultants have conducted Phase I or similar environmental site assessments on all of the properties in our portfolio. Site assessments
are intended to discover and evaluate information regarding the environmental condition of the surveyed property and surrounding properties. These assessments
do not generally include soil samplings, subsurface investigations or an asbestos survey and the assessments may have failed to reveal all material environmental
conditions, liabilities or compliance concerns. In addition, material environmental conditions, liabilities or compliance concerns may have arisen after these
reviews were completed or may arise in the future. We could be held jointly and severally liable under CERCLA and various state, local and national laws for the
investigation and remediation of environmental contamination on our properties caused by previous owners or operators. Fuel storage tanks are present at most of
our properties, and if releases were to occur, we may be liable for the costs of cleaning any resulting contamination. The presence of contamination or the failure to
remediate contamination at our properties may expose us to third-party liability or materially adversely affect our ability to sell, lease or develop the real estate or
to borrow using the real estate as collateral.

9

Table of Contents

Index to Financial Statements

In addition, some of our customers, particularly those in the biotechnology and life sciences industry and those in the technology manufacturing industry,

routinely handle hazardous substances and wastes as part of their operations at our properties. Environmental laws and regulations subject our customers, and
potentially us, to liability resulting from these activities or from previous industrial or retail uses of those properties. We could be held jointly and severally liable
under CERCLA and various state, local and national laws for the investigation and remediation of hazardous substances released by our customers on our
properties. Environmental liabilities could also affect a customer’s ability to make rental payments to us. We cannot assure you that costs of investigation and
remediation of environmental matters will not affect our ability to pay dividends to Digital Realty Trust, Inc.’s stockholders and distributions to Digital Realty
Trust, L.P.’s unitholders or that such costs or other remedial measures will not have a material adverse effect on our business, assets or results of operations or our
competitive position.

Our properties and their uses often require permits from various government agencies, including permits related to zoning and land use. Certain permits from

environmental regulatory agencies, including regulators of air quality, are usually required to install and operate diesel-powered generators, which provide
emergency back-up power at most of our facilities. These permits often set emissions limits for certain air pollutants, including oxides of nitrogen. In addition,
various federal, state, and local environmental, health and safety requirements, such as fire requirements and treated and storm water discharge requirements, apply
to some of our properties. Changes to applicable regulations, such as air quality regulations, or the permit requirements for equipment at our facilities, could hinder
or prevent our construction or operation of data center facilities.

The environmental laws and regulations to which our properties are subject may change in the future, and new laws and regulations may be created. Future

laws, ordinances or regulations may impose additional material environmental liability. Such laws include those directly regulating our climate change impacts and
those which regulate the climate change impacts of companies with which we do business, such as utilities providing our facilities with electricity. See
“Management’s Discussion and Analysis of Financial Condition and Results of Operations—Factors Which May Influence Future Results of Operations—Climate
change legislation.” We do not know if or how the requirements will change, but changes may require that we make significant unanticipated expenditures, and
such expenditures may materially adversely impact our financial condition, cash flow, results of operations, cash available for distributions, common stock’s per
share trading price, competitive position and ability to satisfy our debt service obligations.

Insurance

We carry commercial general liability, property, and business interruption insurance, including rental income loss coverage, covering all of the properties in
our portfolio under a blanket program. We select policy specifications and insured limits which we believe to be appropriate given the relative risk of loss, the cost
of the coverage and industry practice and, in the opinion of our Company’s management, the properties in our portfolio are currently adequately insured. We do not
carry insurance for generally uninsured exposures such as loss from war or nuclear reaction. In addition, we carry earthquake insurance on our properties in an
amount and with deductibles which we believe are commercially reasonable. We intend to partially fund the earthquake insurance deductibles through a captive
insurance company we established in May 2014. Certain of the properties in our portfolio are located in areas known to be seismically active.  See “Risk Factors-
Risks Related to Our Business and Operations-Potential losses may not be covered by insurance.”

Employees

As of December 31, 2017 , we had 1,436 employees.

How to Obtain Our SEC Filings

All reports we file with the SEC are available free of charge via EDGAR through the SEC website at www.sec.gov. In addition, the public may read and
copy materials we file with the SEC at the SEC’s public reference room located at 100 F Street, N.E., Washington, D.C. 20549. The public may obtain information
on the operation of the public reference room by calling the SEC at 1-800-SEC-0330. We will also provide copies of our Forms 8-K, 10-K, 10-Q, Proxy Statement
and amendments to those documents at no charge to investors upon request and make electronic copies of such reports available through our website at
www.digitalrealty.com as soon as reasonably practicable after filing such material with the SEC. The information found on, or otherwise accessible through, our
website is not incorporated by reference into, nor does it form a part of, this report or any other document that we file with the SEC.

Offices

10

Table of Contents

Index to Financial Statements

Our headquarters are located in San Francisco. We have regional U.S. offices in Boston, Chicago, Dallas, Los Angeles, New York, Northern Virginia and

Phoenix and regional international offices in Amsterdam, Dublin, London, Singapore, Sydney and Hong Kong.

Reports to Security Holders

Digital Realty Trust, Inc. is required to send an annual report to its securityholders and to our Operating Partnership’s unitholders.

11

Table of Contents

Index to Financial Statements

ITEM 1A.    RISK FACTORS

For purposes of this section, the term “stockholders” means the holders of shares of Digital Realty Trust, Inc.’s common stock and preferred stock. Set forth

below are the risks that we believe are material to Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders. You should carefully
consider the following factors in evaluating our Company, our properties and our business. The occurrence of any of the following risks might cause Digital Realty
Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders to lose all or a part of their investment. Some statements in this report, including statements
in the following risk factors, constitute forward-looking statements. Please refer to the section entitled “Forward-Looking Statements” starting on page 36.

Risks
Related
to
Our
Business
and
Operations

Our business depends upon the demand for data centers.

Our portfolio is comprised primarily of data centers. A reduction in the demand for data center space, power or connectivity would have a greater adverse

effect on our business and financial condition than if we owned a portfolio with a more diversified customer base or less specialized use. Our substantial
development activities make us particularly susceptible to general economic slowdowns as well as adverse developments in the data center, Internet and data
communications and broader technology industries. Any such slowdown or adverse development could lead to reduced corporate IT spending or reduced demand
for data center space. Reduced demand could also result from business relocations, including to metropolitan areas that we do not currently serve. Changes in
industry practice or in technology, such as virtualization technology, more efficient or miniaturization of computing or networking devices, or devices that require
higher power densities than today’s devices, could also reduce demand for the physical data center space we provide or make the tenant improvements in our
facilities obsolete or in need of significant upgrades to remain viable.

We face significant competition, which may adversely affect the occupancy and rental rates of our data centers.

We compete with numerous data center developers, owners and operators, many of whom own properties similar to ours in some of the same metropolitan

areas where our data centers are located, including CoreSite Realty Corporation, CyrusOne Inc., Equinix, Inc., QTS Realty Trust, Inc., Switch, Inc. and various
local developers in the U.S., as well as Global Switch Holdings Limited and various regional operators in Europe, Asia and Australia. In addition, we may in the
future face competition from new entrants into the data center market, including new entrants who may acquire our current competitors. Some of our competitors
and potential competitors have significant advantages over us, including greater name recognition, longer operating histories, pre-existing relationships with
current or potential customers, significantly greater financial, marketing and other resources and more ready access to capital which allow them to respond more
quickly to new or changing opportunities.

If our competitors offer space that our customers or potential customers perceive to be superior to ours based on numerous factors, including available
power, security considerations, location, or connectivity, or if they offer rental rates below current market rates, or below the rental rates we are offering, we may
lose customers or potential customers or be required to incur costs to improve our data centers or reduce our rental rates. In addition, recently many of our
competitors have developed and continue to develop additional data center space. If the supply of data center space continues to increase as a result of these
activities or otherwise, rental rates may be reduced or we may face delays in leasing or be unable to lease our vacant space, including space that we develop.
Further, if customers or potential customers desire services that we do not offer, we may not be able to lease our space to those customers. Our financial condition,
results of operations, cash flow, cash available for distribution and ability to satisfy our debt service obligations could be materially adversely affected as a result of
any or all of these factors.

Any failure of our physical infrastructure or services could lead to significant costs and disruptions that could harm our business reputation and

could adversely affect our earnings and financial condition.

Our business depends on providing customers with highly reliable service, including with respect to power supply, physical security and maintenance of

environmental conditions. We may fail to provide such service as a result of numerous factors, including mechanical failure, power outage, human error, physical
or electronic security breaches, war, terrorism and related conflicts or similar events worldwide, fire, earthquake, hurricane, flood and other natural disasters,
sabotage and vandalism.

12

Table of Contents

Index to Financial Statements

Problems at one or more of our data centers, whether or not within our control, could result in service interruptions or equipment damage. Substantially all of
our customer leases include terms requiring us to meet certain service level commitments to our customers. Any failure to meet these or other commitments or any
equipment damage in our data centers, including as a result of mechanical failure, power outage, human error or other reasons, could subject us to liability under
our lease terms, including service level credits against customer rent payments, monetary damages, or, in certain cases of repeated failures, the right by the
customer to terminate the lease. Service interruptions, equipment failures or security breaches may also expose us to additional legal liability and monetary
damages and damage our brand and reputation, and could cause our customers to terminate or not renew their leases. In addition, we may be unable to attract new
customers if we have a reputation for service disruptions, equipment failures or physical or electronic security breaches in our data centers. Any such failures could
materially adversely affect our business, financial condition and results of operations.

We may be vulnerable to breaches, or unauthorized access to, or disruption of our physical and information security infrastructure and systems,

any of which could disrupt our operations and have a material adverse effect on our financial condition and results of operations.

Security breaches, or disruption, of our or our customers’ physical or information technology infrastructure, networks and related management systems could

result in, among other things, unauthorized access to our facilities, a breach of our and our customers’ networks and information technology infrastructure, the
misappropriation of our or our customers’ or their customers’ proprietary or confidential information, interruptions or malfunctions in our or our customers’
operations, delays or interruptions to our ability to meet customer needs, breach of our legal, regulatory or contractual obligations, inability to access or rely upon
critical business records or other disruptions in our operations. We may be required to expend significant financial resources to protect against or to remediate such
security breaches. We may not be able to implement security measures in a timely manner or, if and when implemented, these measures could be circumvented.
Any breaches that may occur could expose us to increased risk of lawsuits, material monetary damages, potential violations of applicable privacy and other laws,
penalties and fines, loss of existing or potential customers, harm to our reputation and increases in our security and insurance costs, which could have a material
adverse effect on our business, financial condition and results of operations.

Although our customers’ computing equipment resides in our buildings, we do not have access to, nor do we have knowledge of, what data is being housed

and processed on their equipment.  In the event of a breach resulting in loss of data, such as personally identifiable information or other such data protected by data
privacy or other laws, we may be liable for damages, fines and penalties for such losses under applicable regulatory frameworks despite not handling the data. 
Further, the regulatory framework around data custody, data privacy and breaches varies by jurisdiction and is an evolving area of law.  We may not be able to
limit our liability or damages in the event of such a loss.

We depend on significant customers, and many of our data centers are single-tenant properties or are currently occupied by single tenants.

As of December 31, 2017, the 20 largest customers in our portfolio represented approximately 52.3% of the total annualized rent generated by our properties.

Our largest customers by annualized rent are subsidiaries of IBM (including its subsidiary SoftLayer Technologies, Inc.), a Fortune 50 software company and
Facebook, Inc. IBM (including its subsidiary SoftLayer Technologies, Inc.) leased approximately 1.0 million square feet of net rentable space as of December 31,
2017, representing approximately 6.5% of the total annualized rent generated by our properties. In addition, 64 of our 205 data centers are occupied by single
customers, including data centers occupied solely by IBM. Many factors, including global economic conditions, may cause our customers to experience a
downturn in their businesses or otherwise experience a lack of liquidity, which may weaken their financial condition and result in their failure to make timely rental
and other payments or their default under their agreements with us. Further, the development of new technologies, the adoption of new industry standards or other
factors could render many of our customers’ current products and services obsolete or unmarketable and contribute to a downturn in their businesses, thereby
increasing the likelihood that they default under their leases, become insolvent or file for bankruptcy. If any customer defaults or fails to make timely rent or other
payments, we may experience delays in enforcing our rights as landlord and may incur substantial costs in protecting our investment, which could adversely affect
our financial condition and results of operations.

13

Table of Contents

Index to Financial Statements

Our customers may choose to develop new data centers or expand their own existing data centers, which could result in the loss of one or more key
customers or reduce demand for our newly developed data centers, which could have a material adverse effect on our revenues and results of operations.

Our customers may choose to develop new data centers or expand or consolidate into data centers that we do not own or operate in the future. In the event
that any of our key customers were to do so, it could result in a loss of business to us or put pressure on our pricing. If we lose a customer, we cannot assure you
that we would be able to replace that customer at a competitive rate or at all, which could have a material adverse effect on our revenues and results of operations.

Future consolidation in the technology industry could materially adversely affect our revenues by eliminating some of our potential customers and

could make us more dependent on a more limited number of customers.

Mergers or consolidations of technology companies in the future could reduce the number of our customers and potential customers. If our customers merge

with or are acquired by other entities that are not our customers, they may discontinue or reduce the use of our data centers in the future. Any of these
developments could have a material adverse effect on our revenues and results of operations.

The bankruptcy or insolvency of a major customer may adversely affect the income produced by our properties.

If any customer becomes a debtor in a case under the federal Bankruptcy Code, we cannot evict the customer solely because of the bankruptcy. In addition,

the bankruptcy court might authorize the customer to reject and terminate its contracts with us. Our claim against the customer for unpaid, future rent and other
payments would be subject to a statutory cap that might be substantially less than the remaining amounts actually owed under their agreements with us. In either
case, our claim for unpaid rent and other amounts would likely not be paid in full. Our revenue and cash available for distribution could be materially adversely
affected if any of our significant customers were to become bankrupt or insolvent, suffer a downturn in their businesses, fail to renew their contracts or renew on
terms less favorable to us than their current terms. As of February 28, 2018, we had no material customers in bankruptcy .  

Failure to attract, grow and retain a diverse and balanced customer base, including key magnet customers, could harm our business and operating

results.

Our ability to attract, grow and retain a diverse and balanced customer base, consisting of a variety of enterprises, including companies, such as cloud service

providers, network service providers, and digital economy customers, some of which we consider to be key magnets drawing in other customers, may affect our
ability to maximize our revenues. Dense and desirable customer concentrations within each facility will enable us to better generate significant interconnection
revenues, which in turn increases our overall revenues. Our ability to attract customers to our data centers will depend on a variety of factors, including our product
offerings, the presence of carriers, the overall mix of customers, the presence of key customers attracting business through ecosystems, the data center’s operating
reliability and security and our ability to effectively market our product offerings. Our inability to develop, provide or effectively execute any of these factors may
hinder the development, growth and retention of a diverse and balanced customer base and adversely affect our business, financial condition and results of
operations.

Our contracts with our customers could subject us to significant liability, which may adversely affect our business, results of operations and

financial condition.

In the ordinary course of business, we enter into agreements with our customers pursuant to which our customers lease or license data center space and power

from us as well as purchase connectivity products. These contracts typically contain indemnification and liability provisions, in addition to service level
commitments, which could potentially impose a significant cost on us in the event of losses arising out of certain breaches of such agreements, services to be
provided by us or our subcontractors or from third-party claims. Customers increasingly are looking to pass through their regulatory obligations and other liabilities
to their outsourced data center providers and we may not be able to limit our liability or damages in an event of loss suffered by such customers whether as a result
of our breach of agreement or otherwise.  Further, liabilities and standards for damages and enforcement actions, including the regulatory framework applicable to
different types of losses, vary by jurisdiction, and we may be subject to greater liability for certain losses in certain jurisdictions. Additionally, in connection with
our acquisitions, we have assumed existing agreements with customers that may subject us to greater liability for such an event of loss. If such an event of loss
occurred, we could be liable for material monetary damages and could incur significant legal fees in defending against such an action, which could adversely affect
our financial condition and results of operations.

14

 
Table of Contents

Index to Financial Statements

Certain of our customer agreements may include restrictions on the sale of our properties to certain third parties, which could have a material

adverse effect on us, including our business, results of operations and financial condition.

Certain of our customer agreements may give the customer a right of first refusal to purchase certain properties if we propose to sell those properties to a
third party or prohibit us from selling certain properties to a third party that is a competitor of the customer. The existence of such restrictions could hinder our
ability to sell one or more of these properties, which could materially adversely affect our business, financial condition and results of operations.

Our data centers may not be suitable for re-leasing without significant expenditures or renovations.

Because many of our data centers contain tenant improvements installed at our customers’ expense, they may be better suited for a specific data center user

or technology industry customer and could require significant modification in order for us to re-lease vacant space to another data center user or technology
industry customer. The tenant improvements may also become outdated or obsolete as the result of technological change, the passage of time or other factors. In
addition, our development space will generally require substantial improvement to be suitable for data center use. For the same reason, our properties also may not
be suitable for leasing to traditional office customers without significant expenditures or renovations. As a result, we may be required to invest significant amounts
or offer significant discounts to customers in order to lease or re-lease that space, either of which could adversely affect our financial and operating results.

We may be unable to lease vacant or development space, renew leases, or re-lease space as leases expire.

At December 31, 2017 , we owned approximately 2.7 million square feet of space under active development and approximately 1.7 million square feet of
space held for future development. We intend to continue to add new space to our development inventory and to continue to develop additional space from this
inventory. A portion of the space that we develop has been, and may continue to be, developed on a speculative basis, meaning that we do not have a signed
customer agreement for the space when we begin the development process. We also develop space specifically for customers pursuant to agreements signed prior
to beginning the development process. In those cases, if we fail to meet our development obligations under those agreements, these customers may be able to
terminate the agreements and we would be required to find a new customer for this space. In addition, in certain circumstances we lease data center facilities prior
to their completion. If we fail to complete the facilities in a timely manner, the customer may be entitled to terminate its agreement, seek damages or penalties
against us or pursue other remedies and we may be required to find a new customer for the space. We cannot assure you that once we have developed space or land
we will be able to successfully lease it at all, or at rates we consider favorable or expected at the time we commenced development. Further, once development of a
data center facility is complete, we incur certain operating expenses even if there are no customers occupying any space. If we are not able to complete
development in a timely manner or successfully lease the space that we develop, if development costs are higher than we currently estimate, or if lease rates are
lower than expected when we began the project or are otherwise undesirable, our financial condition, results of operations, cash flow, cash available for
distribution and ability to satisfy our debt service obligations could be materially adversely affected.

In addition, as of December 31, 2017 , customer agreements representing 22.1% of the square footage of the properties in our portfolio, excluding month-to-
month leases and space held for development, were scheduled to expire through 2019, and an additional 10.3% of the net rentable square footage, excluding space
held for development, was available to be leased. Some of this space may require substantial capital investment to meet the power and cooling requirements of our
customers, or may no longer be suitable for their needs. In addition, we cannot assure you that customer agreements will be renewed or that our properties will be
re-leased at all, or at net effective rental rates equal to or above the current average net effective rental rates. If the rental rates for our properties decrease, our
existing customers do not renew their agreements, we do not lease or re-lease our available space, including newly developed space and space for which customer
agreements are scheduled to expire, or it takes longer for us to lease or re-lease this space or for rents to commence on this space, our financial condition, results of
operations, cash flow, cash available for distribution and ability to satisfy our debt service obligations could be materially adversely affected.

Additionally, a customer’s decision to lease space and power in one of our data centers and to purchase additional products typically involves a significant
commitment of resources and due diligence on the part of our customers regarding the adequacy of our facilities. As a result, the leasing of data center space can
have a long sales cycle, and we may expend significant time and resources in pursuing a particular transaction that may not result in revenue. Economic conditions,
including market downturns, may further impact this long sales cycle by making it difficult for customers to plan future business activities, which could cause
customers to slow spending or delay decision‑making. Our inability to adequately manage the risks associated with the sales cycle may adversely affect our
business, financial condition and results of operations.

15

Table of Contents

Index to Financial Statements

Even if we have additional space available for lease at any one of our data centers, our ability to lease this space to existing or new customers could

be constrained by our ability to provide sufficient electrical power.

As current and future customers increase their power footprint in our data centers over time, the corresponding reduction in available power could limit our

ability to increase occupancy rates or network density within our existing data centers. Furthermore, at certain of our data centers, our aggregate maximum
contractual obligation to provide power and cooling to our customers may exceed the physical capacity at such data centers if customers were to quickly increase
their demand for power and cooling. If we are not able to increase the available power and/or cooling or move the customer to another location within our data
centers with sufficient power and cooling to meet such demand, we could lose the customer as well as be exposed to liability under our customer agreements. In
addition, our power and cooling systems are difficult and expensive to upgrade. Accordingly, we may not be able to efficiently upgrade or change these systems to
meet new demands without incurring significant costs that we may not be able to pass on to our customers. Any such material loss of customers, liability or
additional costs could adversely affect our business, financial condition and results of operations.

Our portfolio depends upon local economic conditions and is geographically concentrated in certain locations.

Our portfolio is located in 33 metropolitan areas. As of December 31, 2017 , our portfolio, including the 18 data centers held as investments in

unconsolidated joint ventures, was geographically concentrated in the following metropolitan areas:

Metropolitan Area
Northern Virginia

Chicago

Silicon Valley

London, United Kingdom

New York

Dallas

Phoenix

San Francisco

Singapore

Seattle

Atlanta

Amsterdam, Netherlands

Boston

Other

Total

Percentage of December 31, 2017
total annualized rent (1)

21.6%

12.0%

9.3%

9.2%

8.8%

8.3%

4.0%

3.2%

3.1%

2.4%

2.4%

2.1%

2.0%

11.6%

100.0%

(1)

Annualized rent is monthly contractual rent (defined as cash base rent before abatements) under existing leases as of December 31, 2017 , multiplied by
12. The aggregate amount of abatements for the year ended December 31, 2017 was approximately $21.4 million.

Some of these areas have experienced downturns in recent years. We depend upon the local economic conditions in these areas, including local real estate
conditions, and our operations, revenue and cash available for distribution could be materially adversely affected by a downturn in local economic conditions in
these areas. Our operations may also be affected if too many competing properties are built in any of these areas or supply otherwise increases or exceeds demand.
We cannot assure you that these locations will grow or will remain favorable to data center investments or operations. In addition, we are currently developing data
centers in certain of these metropolitan areas. Any negative changes in real estate, technology or economic conditions in these metropolitan areas in particular
could negatively impact our performance.

16

 
 
Table of Contents

Index to Financial Statements

We lease or sublease certain of our data center space from third parties and the ability to retain these leases or subleases could be a significant risk

to our ongoing operations.

We do not own 19 buildings that account for approximately  1.4 million rentable square feet, or approximately 4.3% of our total rentable square feet. These

leased buildings accounted for 8.3% of our total annualized rent as of December 31, 2017. In addition, we may acquire additional leased data center space or
businesses that lease facilities instead of owning them. Our business could be harmed if we are unable to renew the leases for these data centers on favorable terms
or at all. Additionally, in several of our smaller facilities we sublease our space, and our rights under these subleases are dependent on our sublandlord retaining its
rights under the prime lease. When the primary terms of our existing leases expire, we generally have the right to extend the terms of our leases for one or more
renewal periods, subject to, in the case of several of our subleases, our sublandlord renewing its term under the prime lease. If renewal rates are less favorable than
those we currently have, we may be required to increase revenues within existing data centers to offset such increase in lease payments. Failure to increase
revenues to sufficiently offset these projected higher costs could adversely impact our operating income. Upon the end of our renewal options, we would have to
renegotiate our lease terms with the applicable landlords.

Additionally, if we are unable to renew the lease at any of our data centers, we could lose customers due to the disruptions in their operations caused by the
relocation. We could also lose those customers that choose our data centers based on their locations. The costs of relocating data center infrastructure equipment,
such as generators, power distribution units and cooling units, to different data centers could be prohibitive and, as such, we could lose the value of this equipment.
For these reasons, any lease that cannot be renewed could adversely affect our business, financial condition and results of operations.

We have owned or managed certain of our data centers for a limited time.

Our portfolio consisted of 205 data centers at December 31, 2017, including 18 data centers held as investments in unconsolidated joint ventures. Several of
our data centers, including the 44 data centers which we have acquired in the past five years, have been under our management for a limited time. The data centers
may have characteristics or deficiencies unknown to us that could affect their valuation or revenue potential. We cannot assure you that the operating performance
of these data centers will not decline under our management.

We may not be able to adapt to changing technologies and customer requirements and our data center infrastructure may become obsolete.

The technology industry generally and specific industries in which certain of our customers operate are characterized by rapidly changing technology,
evolving industry standards and changing customer requirements. Our data center infrastructure may become obsolete due to the development of new systems to
deliver power to or eliminate heat in our data centers. Additionally, our data center infrastructure could become obsolete as a result of the development of new
server technology that does not require the levels of critical load and heat removal that our facilities are designed to provide and could be run less expensively on a
different platform. In addition, our power and cooling systems are difficult and expensive to upgrade. Accordingly, we may not be able to efficiently upgrade or
change these systems to meet new demands without incurring significant costs that we may not be able to pass on to our customers which could adversely impact
our business, financial condition and results of operations. In addition, the infrastructure that connects our data centers to the Internet and other external networks
may become insufficient, including with respect to latency, reliability and connectivity. We may not be able to adapt to changing technologies or meet customer
demands for new processes or technologies in a timely and cost-effective manner, if at all, which would adversely impact our ability to sustain and grow our
business.

Further, our inability to adapt to changing customer requirements may make our data centers obsolete or unmarketable to such customers. Some of our

customers operate at significant scale across numerous data center facilities and have designed cloud and computing networks with redundancies and fail-over
capabilities across these facilities, which enhances the resiliency of their networks and applications. This enhanced resiliency may cause customers to re-evaluate
their requirements for an individual data center’s electrical or mechanical infrastructure redundancy. As a result, these customers may realize cost benefits by
locating their data center operations in facilities with less redundancy than is found in our existing data center facilities. Additionally, some of our customers have
begun to operate their data centers using direct outside air, with a wider range of humidity levels and at temperatures that are higher than servers customarily have
operated at in the past, all of which may result in energy cost savings for these customers. We may not be able to operate our existing data centers under these
environmental conditions, particularly in multi-tenant facilities with other customers who are not willing to operate under these conditions. If these trends result in
changes to the preferences of our customers, our data centers could be at a competitive disadvantage to facilities that satisfy the requirements of these customers.
Because we may not be able to modify the

17

Table of Contents

Index to Financial Statements

redundancy levels or environmental systems of our existing data centers cost effectively, these or other changes in customer requirements could have a material
adverse effect on our business, results of operations and financial condition.

Additionally, due to regulations that apply to our customers as well as industry standards, such as ISO and SOC certifications which customers may deem
desirable, they may seek specific requirements from their data centers that we are unable to provide. If new or different regulations or standards are adopted or such
extra requirements are demanded by our customers, we could lose some customers or be unable to attract new customers in certain industries, which could
materially and adversely affect our operations.

We are dependent upon third-party suppliers for power and certain other services, and we are vulnerable to service failures of our third-party

suppliers and to price increases by such suppliers and to volatility in the supply and price of such power in the open market.

We rely on third parties to provide power to our data centers, and we cannot ensure that these third parties will deliver such power in adequate quantities or

on a consistent basis. If the amount of power available to us is inadequate to support our customer requirements, we may be unable to satisfy our obligations to our
customers or grow our business. In addition, our data centers may be susceptible to power shortages and planned or unplanned power outages caused by these
shortages. Power outages may last beyond our backup and alternative power arrangements, which would harm our customers and our business. Any loss of
services or equipment damage could adversely affect both our ability to generate revenues and our operating results, and harm our reputation.

In addition, we may be subject to risks and unanticipated costs associated with obtaining power from various utility companies. Utilities that serve our data
centers may be dependent on, and sensitive to price increases for, a particular type of fuel, such as coal, oil or natural gas. In addition, the price of these fuels and
the electricity generated from them could increase as a result of proposed legislative measures related to climate change or efforts to regulate carbon emissions.
Increases in the cost of power at any of our data centers would put those locations at a competitive disadvantage relative to data centers served by utilities that can
provide less expensive power.

We have also entered into power purchase agreements with contract terms ranging from 10-12 years. These agreements require us to purchase renewable

energy credits from producers at fixed prices over the terms of the contracts, subject to certain adjustments. In the event that the market price for energy decreases,
we may be required to pay more under the power purchase agreements than we would otherwise if we were to purchase renewable energy credits on the open
market, which could adversely affect our results of operations. Additionally, interruptions in the operations of one or more of the suppliers under these agreements,
as a result of unpredictable weather, natural phenomena or otherwise, could negatively impact the quantity of renewable energy credits delivered to us.

We depend on third parties to provide network connectivity to the customers in our data centers and any delays or disruptions in connectivity may

materially adversely affect our operating results and cash flow.

We are not a telecommunications carrier. Although our customers generally are responsible for providing their own network connectivity, we still depend

upon the presence of telecommunications carriers’ fiber networks serving the locations of our data centers in order to attract and retain customers. We believe that
the availability of carrier capacity will directly affect our ability to achieve our projected results. Any carrier may elect not to offer its services within our data
centers. Any carrier that has decided to provide network connectivity to our data centers may not continue to do so for any period of time. Further, some carriers
are experiencing business difficulties or have announced consolidations. As a result, some carriers may be forced to downsize or terminate connectivity within our
data centers, which could have an adverse effect on the business of our customers and, in turn, our own operating results.

Our new data centers may require construction and operation of a sophisticated redundant fiber network. The construction required to connect multiple

carrier facilities to our data centers is complex and involves factors outside of our control, including regulatory requirements and the availability of construction
resources. We have obtained the right to use network resources owned by other companies, including rights to use dark fiber, in order to attract
telecommunications carriers and customers to our portfolio. If the establishment of highly diverse network connectivity to our data centers does not occur, is
materially delayed or is discontinued, or is subject to failure, our operating results and cash flow may be materially adversely affected. Additionally, any hardware
or fiber failures on this network may result in significant loss of connectivity to our data centers. This could negatively affect our ability to attract new customers or
retain existing customers, which could have an adverse effect on our business, financial condition and results of operations.

18

Table of Contents

Index to Financial Statements

Ownership and operation of data centers located outside of the United States subjects us to foreign currency and related risks which may adversely

impact our ability to make distributions.

Our portfolio included 53 data centers located outside of the United States at December 31, 2017 . In addition, we are currently considering, and will in the

future consider, additional international acquisitions.

The ownership and operation of data centers located outside of the United States subjects us to risk from fluctuations in exchange rates between foreign
currencies and the U.S. dollar. We expect that our principal foreign currency exposure will be to the British Pound, the Euro and the Singapore dollar. Changes in
the relation of these currencies to the U.S. dollar will affect our revenues and operating margins, may materially adversely impact our financial condition, results of
operations, cash flow, cash available for distribution and ability to satisfy our debt obligations.

We may attempt to mitigate some or all of the risk of currency fluctuation by financing our properties in the local currency denominations, although we
cannot assure you that we will be able to do so or that this will be effective. We may also engage in direct hedging activities to mitigate the risks of exchange rate
fluctuations in a manner consistent with our qualifications as a REIT, although we cannot assure you that we will be able to do so or that this will be effective.

Our international activities are subject to unique risks different than those faced by us in the United States and we may not be able to effectively

manage our international business.

We have acquired and developed, and may continue to acquire and develop, and operate data centers outside the United States. Our foreign operations

involve risks not generally associated with investments in the United States, including:

•
•
•
•
•
•
•
•

•
•

our limited knowledge of and relationships with sellers, customers, contractors, suppliers or other parties in these metropolitan areas;
complexity and costs associated with managing international development and operations;
difficulty in hiring qualified management, sales and construction personnel and service providers in a timely fashion;
differing employment practices and labor issues;
multiple, conflicting and changing legal, regulatory, entitlement and permitting, and tax and treaty environments;
exposure to increased taxation, confiscation or expropriation;
currency transfer restrictions and limitations on our ability to distribute cash earned in foreign jurisdictions to the United States;
difficulty in enforcing agreements in non-U.S. jurisdictions, including those entered into in connection with our acquisitions or in the event of a
default by one or more of our customers, suppliers or contractors;
local business and cultural factors; and
political and economic instability, including sovereign credit risk, in certain geographic regions.

Our inability to overcome these risks could adversely affect our foreign operations and could harm our business and results of operations.

The results of the United Kingdom’s referendum on withdrawal from the European Union may have a negative effect on global economic conditions,

financial markets and our business, which could adversely affect our results of operations.

We are a global company with worldwide operations, including material business operations in Europe. In June 2016, a majority of voters in the United

Kingdom elected to withdraw from the European Union in a national referendum. The referendum was advisory, and the terms of any withdrawal are subject to
continuing negotiation. Nevertheless, the referendum has created significant uncertainty about the future relationship between the United Kingdom and the
European Union, and has given rise to calls for the governments of other European Union member states to consider withdrawal.

These developments, or the perception that any of them could occur, have had and may continue to have a material adverse effect on global economic
conditions and the stability of global financial markets, and could significantly reduce global market liquidity and restrict the ability of key market participants to
operate in certain financial markets. Asset valuations, currency exchange rates and credit ratings may be especially subject to increased market volatility. Lack of
clarity about future United Kingdom laws and regulations as the United Kingdom determines which European Union laws to replace or replicate in the event of a
withdrawal could depress economic activity and restrict our access to capital in the United Kingdom. If the United Kingdom and the European Union are unable to
negotiate acceptable withdrawal terms or if other European Union member states pursue withdrawal, barrier-free access between the United Kingdom and other
European Union member states or

19

Table of Contents

Index to Financial Statements

among the European economic area overall could be diminished or eliminated. Any of these factors could have a material adverse effect on our business, financial
condition and results of operations.

Our recent acquisitions may not achieve the intended benefits or may disrupt our plans and operations.

Acquisitions present many risks, and we may not realize the financial or strategic goals that were contemplated at the time of the transaction. We completed
the Telx Acquisition in October 2015, the European Portfolio Acquisition in July 2016 and the DFT Merger in September 2017. There can be no assurance that we
will be able to successfully integrate the properties and businesses we acquired in these transactions with our business or otherwise realize the expected benefits of
these acquisitions. Our ability to realize the anticipated benefits of these acquisitions depends, to a large extent, on our ability to integrate each of them with our
business. The combination of two independent businesses can be a complex, costly and time-consuming process. Our business may be negatively impacted if we
are unable to effectively manage our expanded operations. Further, the integration process requires significant time and focus from our management team and may
divert attention from the day-to-day operations of our business.

The expected synergies from the acquisitions may not be fully realized, which could result in increased costs and have a material adverse effect on our
business, financial condition, results of operations, cash flows and the trading price of our common stock. In addition, the overall integration of the businesses may
result in material unanticipated problems, expenses, liabilities, competitive responses and loss of customer relationships, among other potential adverse
consequences.

The risks of combining businesses include, among others:

•
•
•
•

we may have underestimated the costs to make any necessary improvements to the acquired properties;
the acquired properties may be subject to reassessment, which may result in higher than expected tax payments;
we may face difficulties in integrating employees and in retaining key personnel; and
we may face challenges in keeping existing customers, including key customers, which could adversely impact our revenue.

  Many of these risks are outside of our control and any one of them could result in increased costs, decreases in the amount of expected revenue and diversion

of our management’s time and energy, which could have a material adverse effect on our business, financial condition, results of operations and cash flows. In
addition, even if our operations are integrated successfully with the operations of our acquisitions, we may not realize the full benefits of the acquisitions, including
the synergies, operating efficiencies, or sales or growth opportunities that are expected. These benefits may not be achieved within the anticipated time frame or at
all. All of these factors could decrease or delay any potential accretive effect of the acquisitions and negatively impact the price of our common stock.

We may be subject to unknown or contingent liabilities related to our recent acquisitions, for which we may have no or limited recourse against the

sellers.

Our recent acquisitions may be subject to unknown or contingent liabilities for which we may have no or limited recourse against the sellers. Unknown or

contingent liabilities might include liabilities for clean-up or remediation of environmental conditions, claims of customers, vendors or other persons dealing with
the acquired entities, tax liabilities and other liabilities whether incurred in the ordinary course of business or otherwise. In addition, the total amount of costs and
expenses that we may incur with respect to liabilities associated with our recent acquisitions may exceed our expectations, which may adversely affect our
business, financial condition and results of operations.

We may be unable to successfully integrate and operate acquired properties or businesses.

Even if we are able to make acquisitions on advantageous terms, our ability to successfully operate them may be subject to the following significant risks:

•
•

•
•

we may spend more than the budgeted amounts to make necessary improvements or renovations to acquired properties;
we may be unable to integrate new acquisitions quickly and efficiently, particularly acquisitions of operating businesses or portfolios of properties,
into our existing operations;
acquired properties may be subject to reassessment, which may result in higher than expected property tax payments; and
market conditions may result in higher than expected vacancy rates and lower than expected rental rates on acquired properties.

Further, actual integration costs may exceed those estimated and there may be further unanticipated costs and the

20

Table of Contents

Index to Financial Statements

assumption of known and unknown liabilities. While we have assumed that we will incur certain integration expenses, there are factors beyond our control that
could affect the total amount or the timing of such expenses. Many of the expenses that will be incurred, by their nature, are difficult to estimate accurately. If we
cannot integrate and operate acquired properties or businesses to meet our financial expectations, our financial condition, results of operations, cash flow, cash
available for distribution and ability to satisfy our debt service obligations could be materially adversely affected.

We may be unable to identify and complete acquisitions on favorable terms or at all.

We continually evaluate the market of available properties and businesses and may acquire additional real estate when opportunities exist. Our ability to

acquire properties or businesses on favorable terms may be subject to the following significant risks:

•

•

•

•

we may be unable to acquire a desired property or business because of competition from other real estate investors with significant capital, including
both publicly traded REITs and institutional investment funds;
even if we are able to acquire a desired property or business, competition from other potential acquirers may significantly increase the purchase price
or result in other less favorable terms;
even if we enter into agreements for the acquisition of real estate or businesses, these agreements are subject to customary conditions to closing,
including completion of due diligence investigations to our satisfaction; and
we may be unable to finance acquisitions on favorable terms or at all.

Additionally, we may acquire properties or businesses subject to liabilities and without any recourse, or with only limited recourse, with respect to unknown

or contingent liabilities, such as liabilities for clean-up of undisclosed environmental contamination, claims by customers, vendors or other persons dealing with
the former owners of the properties or businesses, tax liabilities, claims for indemnification by general partners, directors, officers and others indemnified by the
former owners of the properties or businesses, and other liabilities whether incurred in the ordinary course of business or otherwise. The total amount of costs and
expenses that we may incur with respect to liabilities associated with acquired properties or businesses may exceed our expectations, which may adversely affect
our business, financial condition and results of operations.

Further, we have entered, and may in the future enter, into transactions with limited representations and warranties or with representations and warranties that
do not survive the closing of such transactions, in which event we would have no or limited recourse against the sellers of such properties or businesses. While we
usually require the sellers to indemnify us with respect to breaches of representations and warranties that survive, such indemnification is often limited and subject
to various materiality thresholds, a significant deductible or an aggregate cap on losses. As a result, there is no guarantee that we will recover any amounts with
respect to losses due to breaches by the sellers of their representations and warranties. Finally, indemnification agreements between us and the sellers typically
provide that the sellers will retain certain specified liabilities relating to the properties or businesses acquired by us. While the sellers are generally contractually
obligated to pay all losses and other expenses relating to such retained liabilities, there can be no guarantee that such arrangements will not require us to incur
losses or other expenses as well.

If we cannot complete property or business acquisitions on favorable terms or at all, our financial condition, results of operations, cash flow, cash available

for distribution and ability to satisfy our debt service obligations could be materially adversely affected.

We face risks with our international acquisitions associated with investing in unfamiliar metropolitan areas.

We have acquired and may continue to acquire properties on a strategic and selective basis in international metropolitan areas that are new to us. When we
acquire properties located in these metropolitan areas, we may face risks associated with a lack of market knowledge or understanding of the local economy and
culture, forging new business relationships in the area and unfamiliarity with local government and permitting procedures. In addition, due diligence, transaction
and structuring costs may be higher than those we may face in the United States. We work to mitigate such risks through extensive diligence and research and
associations with experienced local partners; however, we cannot assure you that all such risks will be eliminated.

We may be unable to source off-market deal flow in the future.

A component of our growth strategy is to continue to acquire additional data centers. To date, a substantial portion of our acquisitions were acquired before

they were widely marketed by real estate brokers, or “off-market.” Properties that are acquired off-market are typically more attractive to us as a purchaser because
of the absence of competitive bidding, which could potentially lead to higher prices. We obtain access to off-market deal flow from numerous sources. If we cannot
obtain off-market deal flow in the future, our ability to locate and acquire additional properties at attractive prices could be adversely affected.

21

Table of Contents

Index to Financial Statements

Joint venture investments could be adversely affected by our lack of sole decision-making authority, our reliance on our joint venture partners’

financial condition and disputes between us and our joint venture partners.

We currently, and may in the future, co-invest with third parties through partnerships, joint ventures or other entities, acquiring non-controlling interests in or

sharing responsibility for managing the affairs of a property, partnership, joint venture or other entity. In these events, we are not in a position to exercise sole
decision-making authority regarding the property, partnership, joint venture or other entity. Investments in partnerships, joint ventures, or other entities may, under
certain circumstances, involve risks not present when a third party is not involved, including the possibility that partners might become bankrupt or fail to fund
their share of required capital contributions. Partners may have economic, tax or other business interests or goals which are inconsistent with our business interests
or goals, and may be in a position to take actions contrary to our policies or objectives. Our joint venture partners may take actions that are not within our control,
which would require us to dispose of the joint venture asset or transfer it to a taxable REIT subsidiary in order for Digital Realty Trust, Inc. to maintain its status as
a REIT. Such investments may also lead to impasses, for example, as to whether to sell a property, because neither we nor our partner would have full control over
the partnership or joint venture. Disputes between us and our partners may result in litigation or arbitration that would increase our expenses and prevent our
officers and/or directors from focusing their time and effort on our day-to-day business. Consequently, actions by or disputes with our partners may subject
properties owned by the partnership or joint venture to additional risk. In addition, we may in certain circumstances be liable for the actions of our third-party
partners. Each of these factors may result in returns on these investments being less than we expect or in losses and our financial and operating results may be
adversely affected.

Our growth depends upon the successful development of our existing space and developable land and new properties acquired for development and

any delays or unexpected costs in such development may delay and harm our growth prospects, future operating results and financial condition.

At December 31, 2017, we had approximately 2.7 million square feet of space under active development and approximately 1.7 million square feet of space

held for future development. We have built and may continue to build out a large portion of this space on a speculative basis at significant cost. Our successful
development of these projects is subject to many risks, including those associated with:

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

delays in construction;
budget overruns;
changes to the plans or specifications;
construction site accidents and other casualties;
increased prices for raw materials or building supplies;
lack of availability and/or increased costs for specialized data center components, including long lead time items such as generators;
financing availability, including our ability to obtain construction financing and permanent financing;
increases in interest rates or credit spreads;
labor availability and costs;
labor disputes and work stoppages with contractors, subcontractors or others that are constructing the project;
failure of contractors to perform on a timely basis or at all, or other misconduct on the part of contractors;
timing of the commencement of rental payments;
access to sufficient power and related costs of providing such power to our customers;
environmental issues;
fire, flooding, earthquakes and other natural disasters;
geological, construction, excavation and equipment problems; and
delays or denials of entitlements or permits, including zoning and related permits, or other delays resulting from requirements of public agencies and
utility companies.

In addition, while we intend to develop data centers primarily in metropolitan areas we are familiar with, we may in the future develop data centers in new

geographic regions where we expect the development to result in favorable risk-adjusted returns on our investment. We may not possess the same level of
familiarity with the development of data centers in other metropolitan areas, which could adversely affect our ability to develop such data centers successfully or at
all or to achieve expected performance.

Development activities, regardless of whether they are ultimately successful, also typically require a substantial portion of our management’s time and
attention. This may distract our management from focusing on other operational activities of our business. If we are unable to complete development projects
successfully, our business may be adversely affected.

22

Table of Contents

Index to Financial Statements

Global economic conditions could adversely affect our liquidity and financial condition.

General economic conditions and the cost and availability of capital may be adversely affected in some or all of the metropolitan areas in which we own

properties and conduct our operations. Instability in the U.S., European, Asian and other economies and international financial markets may adversely affect our
ability, and the ability of our customers, to replace or renew maturing liabilities on a timely basis, access the capital markets to meet liquidity and capital
expenditure requirements and may result in adverse effects on our, and our customers’, businesses, financial condition and results of operations.

In addition, our access to funds under our global revolving credit facility depends on the ability of the lenders that are parties to such facilities to meet their
funding commitments to us. We cannot assure you that long-term disruptions in the global economy and tighter credit conditions among, and potential failures or
nationalizations of, third party financial institutions as a result of such disruptions will not have an adverse effect on our lenders. If our lenders are not able to meet
their funding commitments to us, our business, results of operation, cash flows and financial condition could be adversely affected.

If we do not have sufficient cash flow to continue operating our business and are unable to borrow additional funds, access our existing lines of credit or raise

equity or debt capital, we may need to find alternative ways to increase our liquidity. Such alternatives may include, without limitation, curtailing development
activity, disposing of one or more of our properties possibly on disadvantageous terms or entering into or renewing leases on less favorable terms than we
otherwise would.

We have substantial debt and face risks associated with the use of debt to fund our business activities, including refinancing and interest rate risks.

Our total consolidated indebtedness at December 31, 2017 was approximately $8.6 billion, and we may incur significant additional debt to finance future

acquisition, investment and development activities. As of December 31, 2017, we have a $2.0 billion global revolving credit facility, which has a borrowing limit
that we may increase to up to $2.5 billion, subject to receipt of lender commitments and other conditions precedent. At December 31, 2017, approximately $1.5
billion was available under this facility, net of outstanding letters of credit. As of February 26, 2018, we had approximately $1.3 billion available under the global
revolving credit facility, net of outstanding letters of credit.

Our substantial indebtedness has important consequences in that it currently requires us to dedicate a significant portion of our cash flow from operations to

debt service payments, which reduces the availability of our cash flow to fund working capital, capital expenditures, expansion efforts, distributions and other
general corporate purposes. Additionally, it could: make it more difficult for us to satisfy our obligations with respect to our indebtedness; limit our ability in the
future to undertake refinancings of our debt or obtain financing for expenditures, acquisitions, development or other general corporate purposes on terms and
conditions acceptable to us, if at all; or affect adversely our ability to compete effectively or operate successfully under adverse economic conditions.

In addition, we may violate restrictive covenants or fail to maintain financial ratios specified in our loan documents, which would entitle the lenders to
accelerate our debt obligations, and our secured lenders or mortgagees may foreclose on our properties or our interests in the entities that own the properties that
secure their loans and receive an assignment of rents and leases. A foreclosure on one or more of our properties could adversely affect our access to capital,
financial condition, results of operations, cash flow and cash available for distribution. Further, our default under any one of our loans could result in a cross-
default on other indebtedness. Furthermore, foreclosures could create taxable income without accompanying cash proceeds, a circumstance which could hinder
Digital Realty Trust, Inc.’s ability to meet the REIT distribution requirements imposed by the Code.

Additional risks related to our indebtedness include the following:

We
may
be
unable
to
refinance
our
indebtedness
at
maturity
or
the
refinancing
terms
may
be
less
favorable
than
the
terms
of
our
original
indebtedness.
It is likely that we will need to refinance at least a portion of our outstanding debt as it matures. If we are unable to refinance or extend principal payments due at
maturity or pay them with proceeds of other capital transactions, then our cash flow may not be sufficient in all years to repay all such maturing debt and to pay
distributions. Further, if prevailing interest rates or other factors at the time of refinancing, such as the reluctance of lenders to make commercial real estate loans,
result in higher interest rates upon refinancing, then the interest expense relating to that refinanced indebtedness would increase.

Fluctuations
in
interest
rates
could
materially
affect
our
financial
results
and
may
increase
the
risk
our
counterparty
defaults
on
our
interest
rate
hedges

. Because a significant portion of our debt, including debt incurred under our global revolving credit facility, bears interest at variable rates, increases in interest
rates could materially increase our interest expense. If the United States Federal Reserve increases short-term interest rates, this would have a significant upward
impact on shorter-term interest rates, including the interest rates that our variable rate debt is based upon. Potential future increases in interest rates and credit
spreads may increase our interest expense and therefore negatively affect our financial condition and results of

23

Table of Contents

Index to Financial Statements

operations, and reduce our access to capital markets. We have entered into interest rate swap agreements for a significant portion of our floating rate debt other
than the debt we incur under our global revolving credit facility. Increased interest rates may increase the risk that the counterparties to our swap agreements will
default on their obligations, which could further increase our exposure to interest rate fluctuations. Conversely, if interest rates are lower than our swapped fixed
rates, we will be required to pay more for our debt than we would have had we not entered into the swap agreements.

Adverse
changes
in
our
Company’s
credit
ratings
could
negatively
affect
our
financing
activity.
The credit ratings of our senior unsecured long-term debt

and Digital Realty Trust, Inc.’s preferred stock are based on our Company’s operating performance, liquidity and leverage ratios, overall financial position and
other factors employed by the credit rating agencies in their rating analyses of our Company. Our Company’s credit ratings can affect the amount of capital we can
access, as well as the terms and pricing of any debt we may incur. We cannot assure you that our Company will be able to maintain our current credit ratings, and
in the event our current credit ratings are downgraded, we would likely incur higher borrowing costs and may encounter difficulty in obtaining additional
financing. Also, a downgrade in our Company’s credit ratings may trigger additional payments or other negative consequences under our current and future credit
facilities and debt instruments. For example, if the credit ratings of our senior unsecured long-term debt are downgraded to below investment grade levels, we may
not be able to obtain or maintain extensions on certain of our existing debt. Adverse changes in our credit ratings could negatively impact our refinancing and other
capital market activities, our ability to manage our debt maturities, our future growth, our financial condition, the market price of Digital Realty Trust, Inc.’s stock,
and our development and acquisition activity.

Our
global
revolving
credit
facility,
term
loan
facility
and
senior
notes
restrict
our
ability
to
engage
in
some
business
activities
. Our global revolving

credit facility and term loan facility contain negative covenants and other financial and operating covenants that, among other things:

•
•
•
•
•

restrict our ability to incur additional indebtedness;
restrict our ability to make certain investments;
restrict our ability to merge with another company;
restrict our ability to create, incur or assume liens; and
require us to maintain financial coverage ratios, including with respect to unencumbered assets.

In addition, the global revolving credit facility and the term loan facility restrict Digital Realty Trust, Inc. from making distributions to its stockholders, or

redeeming or otherwise repurchasing shares of its capital stock, after the occurrence and during the continuance of an event of default, except in limited
circumstances including as necessary to enable Digital Realty Trust, Inc. to maintain its qualification as a REIT and to avoid the payment of income or excise tax.

In addition, our unsecured senior notes are governed by indentures, which contain various restrictive covenants, including limitations on our ability to incur

indebtedness and requirements to maintain a pool of unencumbered assets. These restrictions, and the restrictions in our global revolving credit facility and term
loan facility, could cause us to default on our senior notes, global revolving credit facility or term loan facility, as applicable, or negatively affect our operations or
our ability to pay dividends to Digital Realty Trust, Inc.’s stockholders or distributions to Digital Realty Trust, L.P.’s unitholders, which could have a material
adverse effect on the market value of Digital Realty Trust, Inc.’s common stock and preferred stock.

Failure
to
hedge
effectively
against
interest
rate
changes
may
adversely
affect
results
of
operations.
 We seek to manage our exposure to interest rate
volatility by using interest rate hedging arrangements, such as interest rate cap, forward or swap lock agreements. These agreements involve risks, such as the risk
that counterparties may fail to honor their obligations under these arrangements, that these arrangements may not be effective in reducing our exposure to interest
rate changes and that a court could rule that such an agreement is not legally enforceable. Our policy is to use these derivatives only to hedge interest rate risks
related to our borrowings, not for speculative or trading purposes, and to enter into contracts only with major financial institutions based on their credit ratings and
other factors. However, we may choose to change this policy in the future. Approximately 86% of our total indebtedness as of December 31, 2017 was subject to
fixed interest rates or variable rates subject to interest rate swaps. We do not currently hedge our global revolving credit facility and as our borrowings under our
global revolving credit facility increase, so will our percentage of indebtedness not subject to fixed rates and our exposure to interest rates increase. Hedging may
reduce the overall returns on our investments. Failure to hedge effectively against interest rate changes may materially adversely affect our results of operations.

Our growth depends on external sources of capital which are outside of our control.

In order for Digital Realty Trust, Inc. to maintain its qualification as a REIT, it is required under the Internal Revenue Code of 1986, as amended, which we
refer to as the Code, to annually distribute at least 90% of its net taxable income determined without regard to the dividends paid deduction and excluding any net
capital gain. In addition, Digital Realty Trust, Inc. will be subject to federal corporate income tax to the extent that it distributes less than 100% of its net taxable
income,

24

Table of Contents

Index to Financial Statements

including any net capital gains. Digital Realty Trust, L.P. is required to make distributions to Digital Realty Trust, Inc. that will enable the latter to satisfy this
distribution requirement and avoid income and excise tax liability. Because of these distribution requirements, we may not be able to fund future capital needs,
including any necessary acquisition or development financing, from operating cash flow. Consequently, we may rely on third-party sources to fund our capital
needs.

Our access to third-party sources of capital depends on a number of factors, including general market conditions, the market’s perception of our business
prospects and growth potential, our current and expected future earnings, funds from operations, our cash flow and cash distributions, and the market price per
share of Digital Realty Trust, Inc.’s common stock. We cannot assure you that we will be able to obtain equity or debt financing at all or on terms favorable or
acceptable to us. Any additional debt we incur will increase our leverage. Further, equity markets have experienced high volatility recently and we cannot assure
you that we will be able to raise capital through the sale of equity securities at all or on favorable terms. Sales of equity on unfavorable terms could result in
substantial dilution to Digital Realty Trust, Inc.’s common stockholders and Digital Realty Trust, L.P.’s unitholders. In addition, we may be forced to dispose of
one or more of our properties, possibly on disadvantageous terms.

If we cannot obtain capital from third-party sources, we may not be able to acquire or develop data centers when strategic opportunities exist, satisfy our debt

service obligations, pay cash dividends to Digital Realty Trust, Inc.’s stockholders or make distributions to Digital Realty Trust, L.P.’s unitholders.

Declining real estate valuations and impairment charges could adversely affect our earnings and financial condition.

We review each of our properties for indicators that its carrying amount may not be recoverable. Examples of such indicators may include a significant

decrease in the market price, a significant adverse change in how the property is being used or expected to be used based on the underwriting at the time of
acquisition, an accumulation of costs significantly in excess of the amount originally expected for the acquisition or development, a change in our intended holding
period due to our intention to sell an asset, or a history of operating or cash flow losses. When such impairment indicators exist, we review an estimate of the future
undiscounted net cash flows (excluding interest charges) expected to result from the real estate investment’s use and eventual disposition and compare it to the
carrying value of the property. We consider factors such as future operating income, trends and prospects, as well as the effects of leasing demand, competition and
other factors. If our future undiscounted net cash flow evaluation indicates that we are unable to recover the carrying value of a real estate investment, an
impairment loss is recorded to the extent that the carrying value exceeds the estimated fair value of the property. These losses have a direct impact on our net
income because recording an impairment loss results in an immediate negative adjustment to net income. The evaluation of anticipated cash flows is highly
subjective and is based in part on assumptions regarding future occupancy, rental rates and capital requirements that could differ materially from actual results in
future periods. A worsening real estate market may cause us to reevaluate the assumptions used in our impairment analysis. These impairment charges could be
significant and could adversely affect our financial condition, results of operations and cash available for distribution.

We may incur goodwill and other intangible asset impairment charges, which could adversely affect our earnings and financial condition.

In accordance with U.S. generally accepted accounting practices, or GAAP, we are required to assess our goodwill and other intangible assets, including

goodwill and other intangible assets assumed in acquisition transactions, annually, or more frequently whenever events or changes in circumstances indicate
potential impairment, such as changing market conditions or any changes in key assumptions. If the testing performed indicates that an asset may not be
recoverable, we are required to record a non-cash impairment charge for the difference between the carrying value of the goodwill or other intangible assets and the
implied fair value of the goodwill or other intangible assets in the period the determination is made. These impairment charges could be significant and could
adversely affect our financial condition, results of operations and cash available for distribution.

Illiquidity of real estate investments could significantly impede our ability to respond to adverse changes in the performance of our properties and

harm our financial condition.

Because real estate investments are relatively illiquid and because there may be even fewer buyers for our specialized real estate, our ability to promptly sell

properties in our portfolio in response to adverse changes in their performance may be limited, which may harm our financial condition. Further, Digital Realty
Trust, Inc. is subject to provisions in the Code that limit a REIT’s ability to dispose of properties, which limitations are not applicable to other types of real estate
companies. See “Risks Related to Our Organizational Structure—Digital Realty Trust, Inc.’s duty to its stockholders may conflict with the

25

Table of Contents

Index to Financial Statements

interests of Digital Realty Trust, L.P.’s unitholders-Tax consequences upon sale or refinancing.” While Digital Realty Trust, Inc. has exclusive authority under
Digital Realty Trust, L.P.’s limited partnership agreement to determine whether, when, and on what terms to sell a property, any such decision would require the
approval of Digital Realty Trust, Inc.’s board of directors. These limitations may affect our ability to sell properties. This lack of liquidity and the Code restrictions
may limit our ability to vary our portfolio promptly in response to changes in economic or other conditions and, as a result, could adversely affect our financial
condition, results of operations, cash flow, cash available for distribution and ability to access capital necessary to meet our debt payments and other obligations.

Our success depends on key personnel whose continued service is not guaranteed.

We depend on the efforts of key personnel of our Company, particularly A. William Stein, our Chief Executive Officer, Andrew P. Power, our Chief
Financial Officer, Scott Peterson, our Chief Investment Officer and Chris Sharp, our Chief Technology Officer. They are important to our success for many
reasons, including that each has a national or regional reputation in our industry and the investment community that attracts investors and business and investment
opportunities and assists us in negotiations with investors, lenders, existing and potential customers and industry personnel. If we lost their services, our business
and investment opportunities and our relationships with lenders and other capital markets participants, existing and prospective customers and industry personnel
could suffer. Many of our Company’s other senior employees also have strong technology, finance and real estate industry reputations. As a result, we have greater
access to potential acquisitions, financing, leasing and other opportunities, and are better able to negotiate with customers. As the number of our competitors
increases, it becomes more likely that a competitor would attempt to hire certain of these individuals away from our Company. The loss of any of these key
personnel would result in the loss of these and other benefits and could materially and adversely affect our results of operations.

We may have difficulty managing our growth.

We have significantly and rapidly expanded the size of our Company. Our growth may significantly strain our management, operational and financial
resources and systems. In addition, as a reporting company, we are subject to the reporting requirements of the Securities Exchange Act of 1934 and the Sarbanes-
Oxley Act of 2002, or the Sarbanes-Oxley Act. The requirements of these rules and regulations subject us to certain accounting, legal and financial compliance
costs and may strain our management and financial, legal and operational resources and systems. An inability to manage our growth effectively or the increased
strain on our management of our resources and systems could result in deficiencies in our disclosure controls and procedures or our internal control over financial
reporting and could negatively impact financial condition, results of operations and our cash available for distribution.

We may have difficulty implementing changes to our information technology systems.

We have made significant investments to update and improve our information technology systems and expect such investments to continue in order to meet
our business needs, including for ongoing improvements for our customer experience. Transitioning to new or upgraded systems can create difficulties, including
potential disruptions to current processes and security complexities. In addition, our information technology systems may require further modification as we grow
and as our business needs change, which could prolong difficulties we experience with transitions. Such significant investments in our systems may take longer to
deploy and cost more than originally planned. In addition, we may not realize the full benefits we hoped to achieve and we may need to expend significant
attention, time and resources to correct problems or find alternative sources for performing various functions. Difficulties in implementing new or upgraded
information technology systems or significant system failures or delays or the failure to successfully modify our systems and respond to changes in our business
needs could adversely affect our business and results of operations.

Potential losses may not be covered by insurance.

We currently carry commercial general liability, property, business interruption, including loss of rental income, and other insurance policies to cover
insurable risks to our Company. We select policy specifications, insured limits and deductibles which we believe to be appropriate and adequate given the relative
risk of loss, the cost of the coverage and standard industry practices. Our insurance policies contain industry standard exclusions and we do not carry insurance for
generally uninsurable perils, such as loss from war or nuclear reaction. Although we purchase earthquake insurance , it is subject to high deductibles and a
significant portion of our properties are located in seismically active zones such as California, which represents approximately 15% of our portfolio’s annualized
rent as of December 31, 2017. One catastrophic event, for example, in California, could significantly impact multiple properties, the aggregate deductible amounts
could be significant and the limits we purchase could prove to be insufficient, which could materially and adversely impact our business, financial condition and
results of operations. Furthermore, a catastrophic regional event could also severely impact some of our insurers rendering them

26

Table of Contents

Index to Financial Statements

insolvent or unable to fully pay on claims despite their current financial strength. In addition, we may discontinue purchasing insurance against earthquake, flood
or windstorm or other perils on some or all of our properties in the future if the cost of premiums for any of these policies exceeds, in our judgment, the value of
the coverage relative to the risk of loss.

In addition, many of our buildings contain extensive and highly valuable technology-related improvements. Under the terms of our leases, customers are
obligated to maintain adequate insurance coverage applicable to such improvements and under most circumstances use their insurance proceeds to restore such
improvements after a casualty event. In the event of a casualty or other loss involving one of our buildings with extensive installed tenant improvements, our
customers may have the right to terminate their leases if we do not rebuild the base building within prescribed times. In such cases, the proceeds from customers’
insurance will not be available to us to restore the improvements, and our insurance coverage may be insufficient to replicate the technology-related improvements
made by such customers. Furthermore, the terms of our mortgage indebtedness at certain of our properties may require us to pay insurance proceeds over to our
lenders under certain circumstances, rather than use the proceeds to repair the property. If we or one or more of our customers experience a loss which is uninsured
or which exceeds policy limits, we could lose the capital invested in the damaged properties as well as the anticipated future cash flows from those properties. In
addition, if the damaged properties are subject to recourse indebtedness, we would continue to be liable for the indebtedness, even if these properties were
irreparably damaged.

We may become subject to litigation or threatened litigation which may divert management time and attention, require us to pay damages and

expenses or restrict the operation of our business.

We may become subject to disputes with commercial parties with whom we maintain relationships or other parties with whom we do business, including as a

result of any breach in our security systems or downtime in our critical power and cooling systems. Any such dispute could result in litigation between us and the
other parties. Whether or not any dispute actually proceeds to litigation, we may be required to devote significant management time and attention to its resolution
(through litigation, settlement or otherwise), which would detract from our management’s ability to focus on our business. Any such resolution could involve the
payment of damages or expenses by us, which may be significant. In addition, any such resolution could involve our agreement with terms that restrict the
operation of our business.

We could incur significant costs related to government regulation and private litigation over environmental matters, including existing conditions at

some of our properties.

Under various laws relating to the protection of the environment in the United States, as well as in many jurisdictions in Europe and Asia, a current or
previous owner or operator of real estate may be liable for contamination resulting from the presence or discharge of hazardous or toxic substances at a property,
and may be required to investigate and clean up such contamination at or emanating from a property. Such laws often impose liability without regard to whether
the owner or operator knew of, or was responsible for, the presence of the contaminants, and the liability may be joint and several. In the United States, the
Comprehensive Environmental Response, Compensation, and Liability Act of 1980, or CERCLA, established a regulatory and remedial program intended to
provide for the investigation and clean-up of facilities where, or from which, a release of any hazardous substance into the environment has occurred or is
threatened. CERCLA’s primary mechanism for remedying such problems is to impose strict joint and several liability for clean-up of facilities on current owners
and operators of the site, former owners and operators of the site at the time of the disposal of the hazardous substances, any person who arranges for the
transportation, disposal or treatment of the hazardous substances, and the transporters who select the disposal and treatment facilities, regardless of the care
exercised by such persons. CERCLA also imposes liability for the cost of evaluating and remedying any damage to natural resources. The costs of CERCLA
investigation and clean-up can be very substantial. CERCLA also authorizes the imposition of a lien in favor of the United States on all real property subject to, or
affected by, a remedial action for all costs for which a party is liable. Subject to certain procedural restrictions, CERCLA gives a responsible party the right to
bring a contribution action against other responsible parties for their allocable shares of investigative and remedial costs. Our ability to obtain reimbursement from
others for their allocable shares of such costs would be limited by our ability to find other responsible parties and prove the extent of their responsibility, their
financial resources, and other procedural requirements. Various state laws, as well as laws in Europe and Asia, also impose in certain cases strict joint and several
liability for investigation, clean-up and other damages associated with hazardous substance releases.

Previous owners used some of our properties for industrial and retail purposes, so those properties may contain some level of environmental contamination.
Independent environmental consultants have conducted Phase I or similar environmental site assessments on all of the properties in our portfolio. Site assessments
are intended to discover and evaluate information regarding the environmental condition of the surveyed property and surrounding properties. These assessments
do not generally include soil samplings, subsurface investigations or an asbestos survey and the assessments may fail to reveal all environmental conditions,
liabilities or compliance concerns. In addition, material environmental conditions, liabilities or compliance concerns may have arisen after these reviews were
completed or may arise in the future. We could be held jointly and severally liable

27

Table of Contents

Index to Financial Statements

under CERCLA and various state, local and national laws for the investigation and remediation of environmental contamination on our properties caused by
previous owners or operators. Fuel storage tanks are present at most of our properties, and if releases were to occur, we may be liable for the costs of cleaning any
resulting contamination. The presence of contamination or the failure to remediate contamination at our properties may expose us to third-party liability or
materially adversely affect our ability to sell, lease or develop the real estate or to borrow using the real estate as collateral.

In addition, some of our customers, particularly those in the biotechnology and life sciences industry and those in the technology manufacturing industry,

routinely handle hazardous substances and wastes as part of their operations at our properties. Environmental laws and regulations subject our customers, and
potentially us, to liability resulting from these activities or from previous industrial or retail uses of those properties. We could be held jointly and severally liable
under CERCLA and various state, local and national laws for the investigation and remediation of hazardous substances released by our customers on our
properties. Environmental liabilities could also affect a customer’s ability to make rental payments to us. We cannot assure you that costs of investigation and
remediation of environmental matters will not affect our ability to pay dividends to Digital Realty Trust, Inc.’s stockholders and distributions to Digital Realty
Trust, L.P.’s unitholders or that such costs or other remedial measures will not have a material adverse effect on our business, assets or results of operations.

Some of our properties may contain asbestos-containing building materials. Environmental laws require that asbestos-containing building materials be
properly managed and maintained, and may impose fines and penalties on building owners or operators for failure to comply with these requirements. These laws
may also allow third parties to seek recovery from owners or operators for personal injury associated with exposure to asbestos-containing building materials.

Our properties and their uses often require permits from various government agencies, including permits related to zoning and land use. Certain permits from

state or local environmental regulatory agencies, including regulators of air quality, are usually required to install and operate diesel-powered generators, which
provide emergency back-up power at most of our facilities. These permits often set emissions limits for certain air pollutants, including oxides of nitrogen. In
addition, various federal, state, and local environmental, health and safety requirements, such as fire requirements and treated and storm water discharge
requirements, apply to some of our properties. Changes to applicable regulations, such as air quality regulations, or the permit requirements for equipment at our
facilities, could hinder or prevent our construction or operation of data center facilities. Also, drought conditions in certain markets have resulted in water usage
restrictions and proposals to further restrict water usage.  Our data center facilities could face restrictions on water usage, water efficiency mandates, or higher
water prices.

The environmental laws and regulations to which our properties are subject may change in the future, and new laws and regulations may be created. Future

laws, ordinances or regulations may impose additional material environmental liability. Such laws include those directly regulating our climate change impacts and
those which regulate the climate change impacts of companies with which we do business, such as utilities providing our facilities with electricity. See
“Management’s Discussion and Analysis of Financial Condition and Results of Operations—Factors Which May Influence Future Results of Operations—Climate
change legislation.” We do not know if or how the requirements will change, but changes may require that we make significant unanticipated expenditures, and
such expenditures may materially adversely impact our financial condition, cash flow, results, cash available for distributions, common stock’s per share trading
price, our competitive position and ability to satisfy our debt service obligations.

Our properties may contain or develop harmful mold or suffer from other air quality issues, which could lead to liability for adverse health effects

and costs to remedy the problem.

When excessive moisture accumulates in buildings or on building materials, mold may grow, particularly if the moisture problem remains undiscovered or is

not addressed over a period of time. Some molds may produce airborne toxins or irritants. Indoor air quality issues can also stem from inadequate ventilation,
chemical contamination from indoor or outdoor sources and other biological contaminants such as pollen, viruses and bacteria. Indoor exposure to airborne toxins
or irritants above certain levels can be alleged to cause a variety of adverse health effects and symptoms, including allergic or other reactions. As a result, the
presence of significant mold or other airborne contaminants at any of our properties could require us to undertake a costly remediation program to contain or
remove the mold or other airborne contaminants from the affected property or increase indoor ventilation. In addition, the presence of significant mold or other
airborne contaminants could expose us to liability from our customers, employees of our customers and others if property damage or health concerns arise.

We may incur significant costs complying with the Americans with Disabilities Act and similar laws.

Under the Americans with Disabilities Act of 1990, or the ADA, all public accommodations must meet federal requirements related to access and use by

disabled persons. We have not conducted an audit or investigation of all of our properties to determine our compliance with the ADA. If one or more of the
properties in our portfolio does not comply with the ADA, then we would be required to incur additional costs to bring the property into compliance. Additional
federal, state

28

Table of Contents

Index to Financial Statements

and local laws also may require modifications to our properties, or restrict our ability to renovate our properties. We cannot predict the ultimate cost of compliance
with the ADA or other legislation. If we incur substantial costs to comply with the ADA and any other similar legislation or are subject to awards of damages to
private litigants, our financial condition, results of operations, cash flow, cash available for distribution and ability to satisfy our debt service obligations could be
materially adversely affected.

We may incur significant costs complying with other regulations.

The properties in our portfolio are subject to various federal, state and local regulations, such as state and local fire and life safety regulations. Similarly, new
regulations such as the EU General Data Protection Regulation (GDPR) may have significant operational impact on our operations. If we fail to comply with these
various regulations, we may have to pay fines or damage awards to private litigants. In addition, we do not know whether existing regulations will change or
whether future regulations will require us to make significant unanticipated expenditures that will materially adversely impact our financial condition, results of
operations, cash flow, cash available for distribution and ability to satisfy our debt service obligations.

Our business could be adversely impacted if there are deficiencies in our disclosure controls and procedures or internal control over financial

reporting.

The design and effectiveness of our disclosure controls and procedures and internal control over financial reporting may not prevent all errors, misstatements

or misrepresentations. While management will continue to review the effectiveness of our disclosure controls and procedures and internal control over financial
reporting, there can be no guarantee that our internal control over financial reporting will be effective in accomplishing all control objectives all of the time.
Furthermore, our disclosure controls and procedures and internal control over financial reporting with respect to entities that we do not control or manage may be
substantially more limited than those we maintain with respect to the subsidiaries that we have controlled or managed over the course of time. Deficiencies,
including any material weakness, in our internal control over financial reporting which may occur in the future could result in misstatements of our results of
operations, restatements of our financial statements, a decline in Digital Realty Trust, Inc.’s stock price, or otherwise materially adversely affect our business,
reputation, results of operations, financial condition or liquidity.

Risks
Related
to
Our
Organizational
Structure

Digital Realty Trust, Inc.’s duty to its stockholders may conflict with the interests of Digital Realty Trust, L.P.’s unitholders.

Conflicts of interest may exist or could arise in the future as a result of the relationships between Digital Realty Trust, Inc. and its affiliates, on the one hand,
and our Operating Partnership or any partner thereof, on the other. Digital Realty Trust, Inc.’s directors and officers have duties to Digital Realty Trust, Inc. and its
stockholders under Maryland law in connection with their management of our Company. At the same time, Digital Realty Trust, Inc., as general partner, has
fiduciary duties under Maryland law to our Operating Partnership and to the limited partners in connection with the management of our Operating Partnership.
Digital Realty Trust, Inc.’s duties as general partner to our Operating Partnership and its partners may come into conflict with the duties of Digital Realty Trust,
Inc.’s directors and officers to Digital Realty Trust, Inc. and its stockholders. Under Maryland law, a general partner of a Maryland limited partnership owes its
limited partners the duties of loyalty and care, which must be discharged consistently with the obligation of good faith and fair dealing, unless the partnership
agreement provides otherwise. The partnership agreement of our Operating Partnership provides that for so long as Digital Realty Trust, Inc. owns a controlling
interest in our Operating Partnership, any conflict that cannot be resolved in a manner not adverse to either Digital Realty Trust, Inc.’s stockholders or the limited
partners will be resolved in favor of Digital Realty Trust, Inc.’s stockholders.

The provisions of Maryland law that allow the fiduciary duties of a general partner to be modified by a partnership agreement have not been tested in a court

of law, and we have not obtained an opinion of counsel covering the provisions set forth in the partnership agreement that purport to waive or restrict Digital
Realty Trust, Inc.’s fiduciary duties.

Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders are also subject to the following additional conflict of interest:

Tax
consequences
upon
sale
or
refinancing.
Sales of properties and repayment of certain indebtedness will affect holders of common units in our Operating
Partnership and Digital Realty Trust, Inc.’s stockholders differently. Consequently, these holders of common units in our Operating Partnership may have different
objectives regarding the appropriate pricing and timing of any such sale or repayment of debt. While Digital Realty Trust, Inc. has exclusive authority under the
partnership agreement of our Operating Partnership to determine when to refinance or repay debt or whether, when, and on what terms to sell a property, any such
decision generally would require the approval of Digital Realty Trust, Inc.’s board of directors and

29

Table of Contents

Index to Financial Statements

Digital Realty Trust, Inc.’s ability to take such actions, to the extent that they may reduce the liabilities of the Operating Partnership, may be limited pursuant to the
tax protection agreement that the Company and the Operating Partnership entered into upon completion of the DFT Merger. Certain of Digital Realty Trust, Inc.’s
directors and executive officers could exercise their influence in a manner inconsistent with the interests of some, or a majority, of Digital Realty Trust, L.P.’s
unitholders, including in a manner which could prevent completion of a sale of a property or the repayment of indebtedness.

Digital Realty Trust, Inc.’s charter, Digital Realty Trust, L.P.’s partnership agreement and Maryland law contain provisions that may delay, defer

or prevent a change of control transaction. These provisions include the following:

Digital
Realty
Trust,
Inc.’s
charter
and
the
articles
supplementary
governing
its
preferred
stock
contain
9.8%
ownership
limits.
Digital Realty Trust,
Inc.’s charter, subject to certain exceptions, authorizes Digital Realty Trust, Inc.’s board of directors to take such actions as are necessary and desirable to preserve
Digital Realty Trust, Inc.’s qualification as a REIT and to limit any person to actual or constructive ownership of no more than 9.8% (by value or by number of
shares, whichever is more restrictive) of the outstanding shares of Digital Realty Trust, Inc.’s common stock, 9.8% (by value or by number of shares, whichever is
more restrictive) of the outstanding shares of any series of Digital Realty Trust, Inc.’s preferred stock and 9.8% of the value of Digital Realty Trust, Inc.’s
outstanding capital stock. Digital Realty Trust, Inc.’s board of directors, in its sole discretion, may exempt (prospectively or retroactively) a proposed transferee
from the ownership limit. However, Digital Realty Trust, Inc.’s board of directors may not grant an exemption from the ownership limit to any proposed transferee
whose direct or indirect ownership of more than 9.8% of the outstanding shares of Digital Realty Trust, Inc.’s common stock, more than 9.8% of the outstanding
shares of any series of Digital Realty Trust, Inc.’s preferred stock or more than 9.8% of the value of Digital Realty Trust, Inc.’s outstanding capital stock could
jeopardize Digital Realty Trust, Inc.’s status as a REIT. These restrictions on transferability and ownership will not apply if Digital Realty Trust, Inc.’s board of
directors determines that it is no longer in Digital Realty Trust, Inc.’s best interests to attempt to qualify, or to continue to qualify, as a REIT or that compliance is
no longer required for REIT qualification. The ownership limit may delay, defer or prevent a transaction or a change of control that might be in the best interest of
Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders.

Digital
Realty
Trust,
L.P.’s
partnership
agreement
contains
provisions
that
may
delay,
defer
or
prevent
a
change
of
control
transaction.
Digital Realty

Trust, L.P.’s partnership agreement provides that Digital Realty Trust, Inc. may not engage in any merger, consolidation or other combination with or into another
person, any sale of all or substantially all of its assets or any reclassification, recapitalization or change of its outstanding equity interests unless the transaction is
approved by the holders of common units and long-term incentive units representing at least 35% of the aggregate percentage interests of all holders of common
units and long-term incentive units and either:

•

all limited partners will receive, or have the right to elect to receive, for each common unit an amount of cash, securities or other property equal to the
product of the number of shares of Digital Realty Trust, Inc. common stock into which a common unit is then exchangeable and the greatest amount
of cash, securities or other property paid in consideration of each share of Digital Realty Trust, Inc. common stock in connection with the transaction
(provided that, if, in connection with the transaction, a purchase, tender or exchange offer is made to and accepted by the holders of more than 50%
of the shares of Digital Realty Trust, Inc. common stock, each holder of common units will receive, or have the right to elect to receive, the greatest
amount of cash, securities or other property which such holder would have received if it exercised its right to redemption and received shares of
Digital Realty Trust, Inc. common stock in exchange for its common units immediately prior to the expiration of such purchase, tender or exchange
offer and thereupon accepted such purchase, tender or exchange offer and the transaction was then consummated); or

•

the following conditions are met:

•

•

•

substantially all of the assets directly or indirectly owned by the surviving entity in the transaction are held directly or indirectly by
Digital Realty Trust, L.P. or another limited partnership or limited liability company which is the survivor of a merger, consolidation
or combination of assets with Digital Realty Trust, L.P., or the surviving partnership;
the holders of common units and long-term incentive units own a percentage interest of the surviving partnership based on the relative
fair market value of Digital Realty Trust, L.P.’s net assets and the other net assets of the surviving partnership immediately prior to the
consummation of such transaction;
the rights, preferences and privileges of the holders of interests in the surviving partnership are at least as favorable as those in effect
immediately prior to the consummation of such transaction and as those applicable to any other limited partners or non-managing
members of the surviving partnership; and

30

Table of Contents

Index to Financial Statements

•

the rights of the limited partners or non-managing members of the surviving partnership include at least one of the following: (i) the
right to redeem their interests in the surviving partnership for the consideration available to such persons pursuant to Digital Realty
Trust, L.P.’s partnership agreement; or (ii) the right to redeem their interests for cash on terms equivalent to those in effect with
respect to their common units immediately prior to the consummation of such transaction (or, if the ultimate controlling person of the
surviving partnership has publicly traded common equity securities, for such common equity securities, with an exchange ratio based
on the determination of relative fair market value of such securities and the shares of Digital Realty Trust, Inc. common stock).

These provisions may discourage others from trying to acquire control of Digital Realty Trust, Inc. and may delay, defer or prevent a change of control

transaction that might be beneficial to Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders.

The
change
of
control
conversion
features
of
Digital
Realty
Trust,
Inc.’s
preferred
stock
may
make
it
more
difficult
for
a
party
to
take
over
our
Company

or
discourage
a
party
from
taking
over
our
Company.
Upon the occurrence of specified change of control transactions, holders of our series C preferred stock,
series G preferred stock, series H preferred stock, series I preferred stock and series J preferred stock will have the right (unless, prior to the change of control
conversion date, we have provided or provide notice of our election to redeem such preferred stock) to convert some or all of their series C preferred stock, series
G preferred stock, series H preferred stock, series I preferred stock or series J preferred stock, as applicable, into shares of our common stock (or equivalent value
of alternative consideration), subject to caps set forth in the articles supplementary governing the applicable series of preferred stock. The change of control
conversion features of the series C preferred stock, series G preferred stock, series H preferred stock, series I preferred stock and series J preferred stock may have
the effect of discouraging a third party from making an acquisition proposal for our Company or of delaying, deferring or preventing certain change of control
transactions of our Company under circumstances that otherwise could provide the holders of our common stock, series C preferred stock, series G preferred stock,
series H preferred stock, series I preferred stock and series J preferred stock with the opportunity to realize a premium over the then-current market price or that
stockholders may otherwise believe is in their best interests.

Digital
Realty
Trust,
Inc.
could
increase
or
decrease
the
number
of
authorized
shares
of
stock
and
issue
stock
without
stockholder
approval.
Digital
Realty Trust, Inc.’s charter authorizes Digital Realty Trust, Inc.’s board of directors, without stockholder approval, to amend the charter from time to time to
increase or decrease the aggregate number of authorized shares of stock or the number of authorized shares of stock of any class or series, to issue authorized but
unissued shares of the Digital Realty Trust, Inc.’s common stock or preferred stock and, subject to the voting rights of holders of preferred stock, to classify or
reclassify any unissued shares of the Digital Realty Trust, Inc.’s common stock or preferred stock into other classes of series of stock and to set the preferences,
rights and other terms of such classified or reclassified shares. Although Digital Realty Trust, Inc.’s board of directors has no such intention at the present time, it
could establish an additional class or series of preferred stock that could, depending on the terms of such class or series, delay, defer or prevent a transaction or a
change of control that might be in the best interest of Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders.

Certain
provisions
of
Maryland
law
could
inhibit
changes
in
control.
Certain provisions of the Maryland General Corporation Law, or MGCL, may have

the effect of impeding a third party from making a proposal to acquire Digital Realty Trust, Inc. or of impeding a change of control under circumstances that
otherwise could be in the best interests of Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders, including:

•

•

“business combination” provisions that, subject to limitations, prohibit certain business combinations between Digital Realty Trust, Inc. and an
“interested stockholder” (defined generally as any person who beneficially owns, directly or indirectly, 10% or more of the voting power of Digital
Realty Trust, Inc.’s outstanding shares of voting stock or an affiliate or associate of Digital Realty Trust, Inc. who, at any time within the two-year
period prior to the date in question, was the beneficial owner, directly or indirectly, of 10% or more of the voting power of Digital Realty Trust, Inc.’s
then outstanding shares of stock) or an affiliate thereof for five years after the most recent date on which the stockholder becomes an interested
stockholder, and thereafter impose special appraisal rights and supermajority voting requirements on these combinations; and
“control share” provisions that provide that “control shares” of Digital Realty Trust, Inc. (defined as shares which, when aggregated with other shares
controlled by the stockholder (except solely by virtue of a revocable proxy), entitle the stockholder to exercise one of three increasing ranges of
voting power in electing directors) acquired in a “control share acquisition” (defined as the direct or indirect acquisition of ownership or control of
issued and outstanding “control shares”) have no voting rights except to the extent approved by Digital Realty Trust, Inc.’s stockholders by the
affirmative vote of at least two-thirds of all the votes entitled to be cast on the matter, excluding all interested shares.

31

Table of Contents

Index to Financial Statements

Digital Realty Trust, Inc. has opted out of these provisions of the MGCL, in the case of the business combination provisions of the MGCL by resolution of

its board of directors, and in the case of the control share provisions of the MGCL pursuant to a provision in its bylaws. However, Digital Realty Trust, Inc.’s board
of directors may by resolution elect to opt in to the business combination provisions of the MGCL and Digital Realty Trust, Inc. may, by amendment to its bylaws,
opt in to the control share provisions of the MGCL in the future.

The provisions of Digital Realty Trust, Inc.’s charter governing removal of directors and the advance notice provisions of Digital Realty Trust, Inc.’s bylaws

could delay, defer or prevent a change of control or other transaction that might be in the best interests of Digital Realty Trust, Inc.’s stockholders and Digital
Realty Trust, L.P.’s unitholders. Likewise, if Digital Realty Trust, Inc.’s board of directors were to opt in to the business combination provisions of the MGCL or
the provisions of Title 3, Subtitle 8 of the MGCL not currently applicable to Digital Realty Trust, Inc., or if the provision in Digital Realty Trust, Inc.’s bylaws
opting out of the control share acquisition provisions of the MGCL were rescinded, these provisions of the MGCL could have similar anti-takeover effects.

The conversion rights of Digital Realty Trust, Inc.’s preferred stock may be detrimental to holders of Digital Realty Trust, Inc.’s common stock.

Digital Realty Trust, Inc. currently has 8,050,000 shares of 6.625% series C cumulative redeemable perpetual preferred stock outstanding, 10,000,000 shares
of 5.875% series G cumulative redeemable preferred stock outstanding, 14,600,000 shares of 7.375% series H cumulative redeemable preferred stock outstanding,
10,000,000 shares of 6.350% series I cumulative redeemable preferred stock outstanding and 8,000,000 shares of 5.250% series J cumulative redeemable preferred
stock outstanding, which may be converted into Digital Realty Trust, Inc. common stock upon the occurrence of limited specified change in control transactions.
The conversion of the series C preferred stock, series G preferred stock, series H preferred stock, series I preferred stock or series J preferred stock for Digital
Realty Trust, Inc. common stock would dilute stockholder ownership in Digital Realty Trust, Inc. and unitholder ownership in Digital Realty Trust, L.P., and could
adversely affect the market price of Digital Realty Trust, Inc. common stock and could impair our ability to raise capital through the sale of additional equity
securities.

Digital Realty Trust, Inc.’s rights and the rights of its stockholders to take action against its directors and officers are limited.

Maryland law provides that Digital Realty Trust, Inc.’s directors have no liability in their capacities as directors if they perform their duties in good faith, in a
manner they reasonably believe to be in the Company’s best interests and with the care that an ordinarily prudent person in a like position would use under similar
circumstances. As permitted by the MGCL, Digital Realty Trust, Inc.’s charter limits the liability of Digital Realty Trust, Inc.’s directors and officers to the
Company and its stockholders for money damages, except for liability resulting from:

•
•

actual receipt of an improper benefit or profit in money, property or services; or
a final judgment based upon a finding of active and deliberate dishonesty by the director or officer that was material to the cause of action
adjudicated.

In addition, Digital Realty Trust, Inc.’s charter authorizes Digital Realty Trust, Inc. to obligate itself, and Digital Realty Trust, Inc.’s bylaws require it, to

indemnify Digital Realty Trust, Inc.’s directors and officers for actions taken by them in those capacities and to pay or reimburse their reasonable expenses in
advance of final disposition of a proceeding to the maximum extent permitted by Maryland law. Further, Digital Realty Trust, Inc. has entered into indemnification
agreements with its directors and officers. As a result, Digital Realty Trust, Inc. and its stockholders may have more limited rights against its directors and officers
than might otherwise exist under common law. Accordingly, in the event that actions taken in good faith by any of Digital Realty Trust, Inc.’s directors or officers
impede the performance of the Company, the Company’s stockholders’ ability to recover damages from that director or officer will be limited.

Risks
Related
to
Taxes
and
Digital
Realty
Trust,
Inc.’s
Status
as
a
REIT

Failure to qualify as a REIT would have significant adverse consequences to Digital Realty Trust, Inc. and its stockholders and to Digital Realty

Trust, L.P. and its unitholders.

Digital Realty Trust, Inc. has operated and intends to continue operating in a manner that it believes will allow it to qualify as a REIT for federal income tax
purposes under the Code. Digital Realty Trust, Inc. has not requested and does not plan to request a ruling from the IRS that it qualifies as a REIT. Qualification as
a REIT involves the application of highly technical and complex Code provisions for which there are only limited judicial and administrative interpretations. The
complexity of these provisions and of the applicable Treasury Regulations that have been promulgated under the Code is greater in the case of a REIT that, like
Digital Realty Trust, Inc., holds its assets through a partnership. The determination of various factual matters

32

Table of Contents

Index to Financial Statements

and circumstances not entirely within Digital Realty Trust, Inc.’s control may affect its ability to qualify as a REIT. In order to qualify as a REIT, Digital Realty
Trust, Inc. must satisfy a number of requirements, including requirements regarding the ownership of its stock, requirements regarding the composition of its assets
and a requirement that at least 95% of its gross income in any year must be derived from qualifying sources, such as “rents from real property.” Also, Digital
Realty Trust, Inc. must make distributions to stockholders aggregating annually at least 90% of its net taxable income, excluding any net capital gains.

If Digital Realty Trust, Inc. loses its REIT status, it will face serious tax consequences that would substantially reduce its cash available for distribution,

including cash available to pay dividends to its stockholders, for each of the years involved because:

•

•

•

Digital Realty Trust, Inc. would not be allowed a deduction for dividends paid to stockholders in computing its taxable income and would be subject
to federal corporate income tax on its taxable income;
Digital Realty Trust, Inc. also could be subject to the federal alternative minimum tax for taxable years prior to 2018 and possibly increased state and
local taxes; and
unless Digital Realty Trust, Inc. is entitled to relief under applicable statutory provisions, it could not elect to be taxed as a REIT for four taxable
years following the year during which it was disqualified.

In addition, if Digital Realty Trust, Inc. fails to qualify as a REIT, it will not be required to make distributions to common stockholders, and accordingly,
distributions Digital Realty Trust, L.P. makes to its unitholders could be similarly reduced. As a result of all these factors, Digital Realty Trust, Inc.’s failure to
qualify as a REIT could impair our ability to expand our business and raise capital, and could materially adversely affect the value of Digital Realty Trust, Inc.’s
stock and Digital Realty Trust, L.P.’s units.

In certain circumstances, Digital Realty Trust, Inc. may be subject to federal and state taxes as a REIT, which would reduce its cash available for

distribution to its stockholders.

Even if Digital Realty Trust, Inc. qualifies as a REIT for federal income tax purposes, it may be subject to some federal, state and local taxes on its income or

property and, in certain cases, a 100% penalty tax, in the event it sells property as a dealer. In addition, our domestic corporate subsidiary, Digital Services, Inc.,
which is a taxable REIT subsidiary of Digital Realty Trust, Inc., could be subject to federal, state and local taxes, and our foreign properties and companies are
subject to tax in the jurisdictions in which they operate and are located. A domestic taxable REIT subsidiary is subject to U.S. federal income tax as a regular C
corporation. In addition, a 100% excise tax will be imposed on certain transactions between a taxable REIT subsidiary and its parent REIT that are not conducted
on an arm’s length basis. Any federal, state or foreign taxes Digital Realty Trust, Inc. pays will reduce its cash available for distribution to stockholders.

To maintain Digital Realty Trust, Inc.’s REIT status, we may be forced to borrow funds during unfavorable market conditions.

To qualify as a REIT, Digital Realty Trust, Inc. generally must distribute to its stockholders at least 90% of its net taxable income each year, excluding
capital gains, and Digital Realty Trust, Inc. will be subject to regular corporate income taxes to the extent that it distributes less than 100% of its net taxable income
each year. In addition, Digital Realty Trust, Inc. will be subject to a 4% nondeductible excise tax on the amount, if any, by which distributions paid by Digital
Realty Trust, Inc. in any calendar year are less than the sum of 85% of its ordinary income, 95% of its capital gain net income and 100% of its undistributed
income from prior years. While historically Digital Realty Trust, Inc. has satisfied these distribution requirements by making cash distributions to its stockholders,
a REIT is permitted to satisfy these requirements by making distributions of cash or other property. We may need to borrow funds for Digital Realty Trust, Inc. to
meet the REIT distribution requirements even if the then prevailing market conditions are not favorable for these borrowings. These borrowing needs could result
from differences in timing between the actual receipt of cash and inclusion of income for federal income tax purposes, or the effect of non-deductible capital
expenditures, the creation of reserves or required debt or amortization payments.

Dividends payable by REITs do not qualify for the reduced tax rates available for some dividends.

The maximum tax rate applicable to “qualified dividend income” payable to U.S. stockholders that are individuals, trusts and estates is 20%. Dividends

payable by REITs, however, generally are not eligible for these reduced rates. Under recently enacted tax legislation (the “2017 Tax Legislation”), U.S.
stockholders that are individuals, trusts and estates generally may deduct up to 20% of the ordinary dividends (e.g., dividends not designated as capital gain
dividends or qualified dividend income) received from a REIT for taxable years beginning after December 31, 2017 and before January 1, 2026. Although this
deduction reduces the effective tax rate applicable to certain dividends paid by REITs (generally to 29.6% assuming the

33

Table of Contents

Index to Financial Statements

shareholder is subject to the 37% maximum rate), such tax rate is still higher than the tax rate applicable to corporate dividends that constitute qualified dividend
income. Accordingly, investors who are individuals, trusts and estates may perceive investments in REITs to be relatively less attractive than investments in the
stocks of non-REIT corporations that pay dividends, which could materially and adversely affect the value of the shares of REITs, including the per share trading
price of Digital Realty Trust, Inc.’s capital stock.

The tax imposed on REITs engaging in “prohibited transactions” may limit our ability to engage in transactions which would be treated as sales for

federal income tax purposes.

A REIT’s net income from prohibited transactions is subject to a 100% penalty tax. In general, prohibited transactions are sales or other dispositions of
property, other than foreclosure property, held primarily for sale to customers in the ordinary course of business. Although we do not intend to hold any properties
that would be characterized as held for sale to customers in the ordinary course of our business, unless a sale or disposition qualifies under certain statutory safe
harbors, such characterization is a factual determination and no guarantee can be given that the IRS would agree with our characterization of our properties or that
we will always be able to make use of the available safe harbors.

Complying with REIT requirements may cause us to forgo otherwise attractive opportunities or liquidate otherwise attractive investments.

To qualify as a REIT for federal income tax purposes, Digital Realty Trust, Inc. must continually satisfy tests concerning, among other things, its sources of

income, the nature and diversification of its assets (including its proportionate share of Digital Realty Trust, L.P.’s assets), the amounts it distributes to its
stockholders and the ownership of its capital stock. If Digital Realty Trust, Inc. fails to comply with one or more of the asset tests at the end of any calendar
quarter, it must correct the failure within 30 days after the end of the calendar quarter or qualify for certain statutory relief provisions to avoid losing its REIT
qualification and suffering adverse tax consequences. In order to meet these tests, we may be required to forgo investments we might otherwise make or to
liquidate otherwise attractive investments. Thus, compliance with the REIT requirements may hinder our performance and reduce amounts available for
distribution to Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders.

The power of Digital Realty Trust, Inc.’s board of directors to revoke Digital Realty Trust, Inc.’s REIT election without stockholder approval may

cause adverse consequences to Digital Realty Trust, Inc.’s stockholders and Digital Realty Trust, L.P.’s unitholders.

Digital Realty Trust, Inc.’s charter provides that its board of directors may revoke or otherwise terminate its REIT election, without the approval of its
stockholders, if it determines that it is no longer in Digital Realty Trust, Inc.’s best interests to continue to qualify as a REIT. If Digital Realty Trust, Inc. ceases to
qualify as a REIT, it would become subject to U.S. federal corporate income tax on its taxable income and it would no longer be required to distribute most of its
taxable income to its stockholders and, accordingly, distributions Digital Realty Trust, L.P. makes to its unitholders could be similarly reduced.

If the Operating Partnership fails to qualify as a partnership for federal income tax purposes, Digital Realty Trust, Inc. would fail to qualify as a

REIT and suffer other adverse consequences.

  We believe that the Operating Partnership has been organized and operated in a manner that will allow it to be treated as a partnership, and not an
association or publicly traded partnership taxable as a corporation, for federal income tax purposes. As a partnership, the Operating Partnership is not subject to
federal income tax on its income. Instead, each of its partners, including Digital Realty Trust, Inc., is allocated, and may be required to pay tax with respect to, that
partner’s share of the Operating Partnership’s income. No assurance can be provided, however, that the IRS will not challenge the Operating Partnership’s status as
a partnership for federal income tax purposes or that a court would not sustain such a challenge. If the IRS were successful in treating the Operating Partnership as
an association or publicly traded partnership taxable as a corporation for federal income tax purposes, Digital Realty Trust, Inc. would fail to meet the gross income
tests and certain of the asset tests applicable to REITs and, accordingly, would cease to qualify as a REIT. Such REIT qualification failure could impair our ability
to expand our business and raise capital, and would materially adversely affect the value of Digital Realty Trust, Inc.’s stock and the Operating Partnership’s units.
Also, the failure of the Operating Partnership to qualify as a partnership would cause it to become subject to federal corporate income tax, which would reduce
significantly the amount of its cash available for debt service and for distribution to its partners, including Digital Realty Trust, Inc. 

Our tax protection agreement may require the Operating Partnership to maintain certain debt levels that otherwise would not be required to

operate our business.

34

Table of Contents

Index to Financial Statements

In connection with our acquisition of DuPont Fabros Technology, Inc., we entered into a tax protection agreement with a number of limited partners of
DuPont Fabros Technology, L.P. (the “Protected Partners”), all of whom became limited partners of the Operating Partnership. Pursuant to this tax protection
agreement, the Protected Partners entered into a guarantee of certain debt of a subsidiary of the Operating Partnership. The Operating Partnership is required to
offer the Protected Partners a new guarantee opportunity in the event any guaranteed debt is repaid prior to March 1, 2023. If the Operating Partnership fails to
offer the guarantee opportunity or to allocate guaranteed debt to a Protected Partner as required under the tax protection agreement, the Operating Partnership
generally would be required to indemnify each Protected Partner for the tax liability resulting from such failure, as determined under the tax protection agreement.
These obligations may require the Operating Partnership to maintain more or different indebtedness than we would otherwise require for our business.

Changes in U.S. or foreign tax laws and regulations, including changes to tax rates, legislation and other actions may adversely affect our results of

operations, our stockholders, Digital Realty Trust, L.P.’s unitholders and us.

We are headquartered in the United States with subsidiaries and operations globally and are subject to income taxes in these jurisdictions. Significant
judgment is required in determining our provision for income taxes. Although we believe that we have adequately assessed and accounted for our potential tax
liabilities, and that our tax estimates are reasonable, there can be no assurance that additional taxes will not be due upon audit of our tax returns or as a result of
changes to applicable tax laws.  The governments of many of the countries in which we operate may enact changes to the tax laws of such countries, including
changes to the corporate recognition and taxation of worldwide income. The nature and timing of any changes to each jurisdiction’s tax laws and the impact on our
future tax liabilities cannot be predicted with any accuracy but could materially and adversely impact our results of operations and cash flows.

Additionally, each of our properties is subject to real property and personal property taxes. These taxes may increase as tax rates change and as the properties
are assessed or reassessed by taxing authorities. Any increase in property taxes on our properties could have a material adverse effect on our revenues and results
of operations.

Further, the rules dealing with federal income taxation are constantly under review by persons involved in the legislative process and by the IRS and the U.S.

Department of the Treasury. Changes to the tax laws, with or without retroactive application, could materially and adversely affect Digital Realty Trust, Inc.’s
stockholders, Digital Realty Trust, L.P.’s unitholders and us. We cannot predict how changes in the tax laws might affect our investors and us. New legislation,
Treasury Regulations, administrative interpretations or court decisions could significantly and negatively affect Digital Realty Trust, Inc.’s ability to qualify as a
REIT, the federal income tax consequences of such qualification, or the federal income tax consequences of an investment in us. Moreover, the law relating to the
tax treatment of other entities, or an investment in other entities, could change, making an investment in such other entities more attractive relative to an investment
in a REIT.

The 2017 Tax Legislation has significantly changed the U.S. federal income taxation of U.S. businesses and their owners, including REITs and their

stockholders. Changes made by the 2017 Tax Legislation that could affect Digital Realty Trust, Inc. and its stockholders include:

•

•

•

•

•

•

•

temporarily reducing individual U.S. federal income tax rates on ordinary income; the highest individual U.S. federal income tax rate has been reduced
from 39.6% to 37% for taxable years beginning after December 31, 2017 and before January 1, 2026;
permanently eliminating the progressive corporate tax rate structure, which previously imposed a maximum corporate tax rate of 35%, and replacing it
with a flat corporate tax rate of 21%;
permitting a deduction for certain pass-through business income, including dividends received by our stockholders from us that are not designated by us
as capital gain dividends or qualified dividend income, which will allow individuals, trusts, and estates to deduct up to 20% of such amounts for taxable
years beginning after December 31, 2017 and before January 1, 2026;
reducing the highest rate of withholding with respect to our distributions to non-U.S. stockholders that are treated as attributable to gains from the sale
or exchange of U.S. real property interests from 35% to 21%;
limiting our deduction for net operating losses arising in taxable years beginning after December 31, 2017 to 80% of our REIT taxable income
(determined without regard to the dividends paid deduction);
generally limiting the deduction for net business interest expense in excess of 30% of a business’s “adjusted taxable income,” except for taxpayers that
engage in certain real estate businesses (including most equity REITs) and elect out of this rule (provided that such electing taxpayers must use an
alternative depreciation system with longer depreciation periods); and
eliminating the corporate alternative minimum tax.

Many of these changes that are applicable to us are effective beginning with our 2018 taxable year, without any transition periods or grandfathering for

existing transactions. The legislation is unclear in many respects and could be subject to potential

35

Table of Contents

Index to Financial Statements

amendments and technical corrections, as well as interpretations and implementing regulations by the IRS and the U.S. Department of the Treasury, any of which
could lessen or increase the impact of the legislation. In addition, it is unclear how these U.S. federal income tax changes will affect state and local taxation, which
often uses federal taxable income as a starting point for computing state and local tax liabilities.

Tax liabilities and attributes inherited in connection with acquisitions may adversely impact our business .

From time to time we may acquire other corporations or entities and, in connection with such acquisitions, we may succeed to the historic tax attributes and

liabilities of such entities. For example, if we acquire a C corporation and subsequently dispose of its assets within five years of the acquisition, we could be
required to pay tax on any built-in gain attributable to such assets determined as of the date on which we acquired the assets. In addition, in order to qualify as a
REIT, at the end of any taxable year, we must not have any earnings and profits accumulated in a non-REIT year. As a result, if we acquire a C corporation, we
must distribute the corporation’s earnings and profits accumulated prior to the acquisition before the end of the taxable year in which we acquire the corporation.
We also could be required to pay the acquired entity’s unpaid taxes even though such liabilities arose prior to the time we acquired the entity. Telx was a C
corporation at the time of the Telx Acquisition, which raises each of these issues.

Forward-Looking Statements

We make statements in this report that are forward-looking statements within the meaning of the federal securities laws. In particular, statements pertaining

to our capital resources, portfolio performance, our ability to lease vacant space and space under development, leverage policy and acquisition and capital
expenditure plans, as well as our discussion of “Factors Which May Influence Future Results of Operations,” contain forward-looking statements. Likewise, all of
our statements regarding anticipated market conditions, demographics and results of operations are forward-looking statements. You can identify forward-looking
statements by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” “seeks,” “approximately,” “intends,” “plans,” “pro
forma,” “estimates” or “anticipates” or the negative of these words and phrases or similar words or phrases which are predictions of or indicate future events or
trends and which do not relate solely to historical matters. You can also identify forward-looking statements by discussions of strategy, plans or intentions.

Forward-looking statements involve numerous risks and uncertainties and you should not rely on them as predictions of future events. Forward-looking
statements depend on assumptions, data or methods which may be incorrect or imprecise and we may not be able to realize them. We do not guarantee that the
transactions and events described will happen as described or that they will happen at all. The following factors, among others, could cause actual results and future
events to differ materially from those set forth or contemplated in the forward-looking statements:

•
•
•
•
•

•

•
•
•
•
•
•

•
•
•
•

•
•

reduced demand for data centers or decreases in information technology spending;
decreased rental rates, increased operating costs or increased vacancy rates;
increased competition or available supply of data center space;
the suitability of our data centers and data center infrastructure, delays or disruptions in connectivity or availability of power, or failures or breaches
of our physical and information security infrastructure or services;
our dependence upon significant customers, bankruptcy or insolvency of a major customer or a significant number of smaller customers, or defaults
on or non-renewal of leases by customers;
breaches of our obligations or restrictions under our contracts with our customers;
our inability to successfully develop and lease new properties and development space, and delays or unexpected costs in development of properties;
the impact of current global and local economic, credit and market conditions;
our inability to retain data center space that we lease or sublease from third parties;
difficulty acquiring or operating properties in foreign jurisdictions;
our failure to realize the intended benefits from, or disruptions to our plans and operations or unknown or contingent liabilities related to, our recent
acquisitions;
our failure to successfully integrate and operate acquired or developed properties or businesses;
difficulties in identifying properties to acquire and completing acquisitions;
risks related to joint venture investments, including as a result of our lack of control of such investments;
risks associated with using debt to fund our business activities, including re-financing and interest rate risks, our failure to repay debt when due,
adverse changes in our credit ratings or our breach of covenants or other terms contained in our loan facilities and agreements;
our failure to obtain necessary debt and equity financing, and our dependence on external sources of capital;
financial market fluctuations and changes in foreign currency exchange rates;

36

Table of Contents

Index to Financial Statements

•

•
•
•
•
•
•
•
•

adverse economic or real estate developments in our industry or the industry sectors that we sell to, including risks relating to decreasing real estate
valuations and impairment charges and goodwill and other intangible asset impairment charges;
our inability to manage our growth effectively;
losses in excess of our insurance coverage;
environmental liabilities and risks related to natural disasters;
our inability to comply with rules and regulations applicable to our Company;
Digital Realty Trust, Inc.’s failure to maintain its status as a REIT for federal income tax purposes;
Digital Realty Trust, L.P.’s failure to qualify as a partnership for federal income tax purposes;
restrictions on our ability to engage in certain business activities; and
changes in local, state, federal and international laws and regulations, including related to taxation, real estate and zoning laws, and increases in real
property tax rates.

The risks included here are not exhaustive, and additional factors could adversely affect our business and financial performance, including factors and risks

included in other sections of this report, including under Part I, Item 1A, Risk Factors. Moreover, we operate in a very competitive and rapidly changing
environment. New risk factors emerge from time to time and it is not possible for management to predict all such risk factors, nor can we assess the impact of all
such risk factors on the business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in
any forward-looking statements. While forward-looking statements reflect our good faith beliefs, they are not guaranties of future performance. We disclaim any
obligation to publicly update or revise any forward-looking statement to reflect changes in underlying assumptions or factors, new information, data or methods,
future events or other changes.

37

Table of Contents

Index to Financial Statements

ITEM 1B.    UNRESOLVED STAFF COMMENTS

None.

ITEM 2.    PROPERTIES    

General

In addition to the information in this Item 2, certain information regarding our portfolio is contained in Schedule III (Financial Statement Schedule) under

Part IV, Item 15(a) (2) and which is included in Part II, Item 8.

Our Portfolio

As of December 31, 2017 , our portfolio consisted of 205 data centers, including seven held-for-sale data centers and 18 data centers held as investments in

unconsolidated joint ventures, and contain a total of approximately 32.1 million rentable square feet, including 2.7 million square feet of space under active
development and 1.7 million square feet of space held for development. The following table presents an overview of our portfolio of properties, including the
seven data centers held-for-sale and 18 data centers held as investments in unconsolidated joint ventures and developable land, based on information as of
December 31, 2017 (dollar amounts in thousands). All data centers are held in fee simple except as otherwise indicated. Please refer to Note 8 in the Notes to the
Consolidated Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K for a description of all applicable encumbrances as of
December 31, 2017 .

Metropolitan Area

Data Center
Buildings

Net Rentable
Square Feet (1)

Space Under Active
Development (2)

Space Held for
Development (3)

  Annualized Rent (4)

  Occupancy Percentage

(5)

North America

Northern Virginia

Chicago

New York

Silicon Valley

Dallas

Phoenix

San Francisco

Atlanta

Boston

Los Angeles

Houston

Toronto, Canada (6)

Denver

Austin

Miami

Portland

Minneapolis / St. Paul

Charlotte

Seattle

North America Total / Weighted
Average

Europe

29  
9  
12  
19  
21  
4  
5  
5  
5  
4  
6  
3  
2  
1  
2  
1  
2  
3  
1  

4,810,736  
2,691,942  
1,907,645  
2,185,341  
3,304,082  
990,385  
989,743  
775,606  
528,029  
818,479  
392,816  
188,066  
371,500  
85,688  
198,461  
48,574  
406,929  
95,499  
41,156  

692,187  
305,003  
34,821  
65,680  
56,126  
—  
13,500  
—  
—  
—  
—  
711,000  
—  
—  
22,535  
—  
—  
—  
—  

90,998   $
197,160  
278,089  
—  
150,152  
108,926  
—  
313,581  
50,649  
—  
13,969  
—  
—  
—  
5,318  
—  
—  
—  
74,790  

459,124  
268,460  
195,401  
191,508  
178,981  
90,538  
72,812  
54,031  
44,380  
41,528  
21,311  
14,267  
10,850  
6,727  
6,603  
6,094  
5,938  
4,447  
2,144  

134  

20,830,677  

1,900,852  

1,283,632  

1,675,144  

94.9%

95.2%

84.1%

96.8%

88.2%

67.3%

67.8%

94.5%

85.0%

90.1%

87.9%

93.9%

95.6%

50.1%

96.6%

83.3%

85.1%

88.0%

69.1%

89.4%

38

 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
Data Center
Buildings

Net Rentable
Square Feet (1)

Space Under Active
Development (2)

Space Held for
Development (3)

Annualized Rent (4)

Occupancy
Percentage (5)

Table of Contents

Index to Financial Statements

Metropolitan Area

London, United Kingdom (7)

Amsterdam, Netherlands (8)

Dublin, Ireland (8)

Frankfurt, Germany (8)

Paris, France (8)

Geneva, Switzerland (8)

Manchester, United Kingdom (7)

Europe Total / Weighted Average

Asia Pacific

Singapore (9)

Melbourne (10)

Sydney (10)

Osaka

Asia Pacific Total / Weighted
Average

16  
10  
5  
2  
3  
1  
1  
38  

2  
2  
3  
1  

8  

1,400,717  
474,217  
307,775  
47,641  
185,994  
59,190  
38,016  
2,513,550  

465,519  
125,329  
138,207  
—  

729,055  

Non-Data Center Properties

—  

278,068  

Managed Unconsolidated Joint Ventures

Northern Virginia

Hong Kong (11)

Silicon Valley

Dallas

New York

Non-Managed Unconsolidated Joint Ventures

Seattle

Osaka (12)

Tokyo (12)

4  
1  
4  
3  
1  
13  

2  
1  
2  
5  

546,572  
114,883  
326,305  
319,876  
108,336  
1,415,972  

451,369  
92,682  
277,196  
821,247  

171,471  
21,362  
49,051  
120,030  
—  
—  
—  
361,914  

—  
21,241  
176,150  
239,999  

437,390  

—  

—  
—  
—  
—  
—  
—  

—  
—  
—  
—  

55,060  
159,947  
—  
—  
—  
—  
—  
215,007  

75,119  
—  
—  
—  

75,119  

207,397  
47,288  
24,048  
9,829  
7,191  
1,791  
1,822  
299,366  

70,825  
16,906  
16,306  
—  

104,037  

89.7%

91.9%

90.4%

63.1%

100.0%

100.0%

100.0%

90.8%

84.6%

91.5%

99.8%

—%

88.7%

—  

1,258  

100.0%

—  
71,417  
—  
—  
—  
71,417  

—  
—  
—  
—  

26,597  
17,639  
12,574  
7,541  
3,190  
67,541  

52,779  
14,703  
21,099  
88,581  

99.6%

80.8%

100.0%

100.0%

100.0%

98.3%

97.9%

89.2%

87.0%

93.3%

90.2%

65.8%

89.3%

Total, excluding held for sale

198  

26,588,569  

2,700,156  

1,645,175  

2,235,927  

Held for Sale

Total

7  

1,067,704  

—  

89,923  

16,747  

205  

27,656,273  

2,700,156  

1,735,098  

2,252,674  

39

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
   
   
   
   
   
   
 
 
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
   
   
   
   
   
   
 
 
   
   
   
   
   
   
 
 
   
   
   
   
   
   
 
 
   
   
   
   
   
   
Table of Contents

Index to Financial Statements

(1)

(2)
(3)
(4)

(5)

(6)
(7)
(8)
(9)
(10)
(11)
(12)

Net rentable square feet at a building represents the current square feet at that building under lease as specified in the lease agreements plus management’s
estimate of space available for lease. We estimate the total net rentable square feet available for lease based on a number of factors in addition to
contractually leased square feet, including available power, required support space and common area. Net rentable square feet includes tenants’
proportional share of common areas but excludes space held for development.
Space under active development includes current base building and data center projects in progress.
Space held for development includes space held for future data center development, and excludes space under active development.
Annualized rent represents the monthly contractual rent (defined as cash base rent before abatements) under existing leases as of December 31, 2017
multiplied by 12.
Excludes space held for development and space under active development. We estimate the total square feet available for lease based on a number of
factors in addition to contractually leased square feet, including available power, required support space and common area.
Rental amounts were calculated based on the exchange rate in effect on December 31, 2017 of $0.80 to 1.00 CAD.
Rental amounts were calculated based on the exchange rate in effect on December 31, 2017 of $1.35 to £1.00.
Rental amounts were calculated based on the exchange rate in effect on December 31, 2017 of $1.20 to €1.00.
Rental amounts were calculated based on the exchange rate in effect on December 31, 2017 of $0.75 to 1.00 SGD.
Rental amounts were calculated based on the exchange rate in effect on December 31, 2017 of $0.78 to 1.00 AUD.
Rental amounts were calculated based on the exchange rate in effect on December 31, 2017 of $0.13 to 1.00 HKD.
Rental amounts were calculated based on the exchange rate in effect on December 31, 2017 of $0.01 to 1.00 JPY.

We have a ground lease obligation on 2010 East Centennial Circle that expires in 2082. After February 2036, rent for the remaining term of the 2010 East
Centennial Circle ground lease will be determined based on a fair market value appraisal of the property and, as result, rent after February 2036 is excluded from
the minimum commitment information below.

We have ground leases on Paul van Vlissingenstraat 16 that expires in 2054, Chemin de l’Epinglier 2 that expires in 2074, Clonshaugh Industrial Estate I and

II that expires in 2981, Manchester Technopark that expires in 2125, 29A International Business Park that expires in 2038, Gyroscoopweg 2E-2F, which has a
continuous ground lease and will be adjusted on January 1, 2042, and Naritaweg 52, which has a continuous ground lease. We have operating leases at 111 8 th
Avenue (2 nd and 6 th floors), 111 8 th Avenue (3 rd and 7 th floors) and 410 Commerce Boulevard, which expire in June 2024, February 2022 and December 2026,
respectively. The lease at 111 8 th Avenue (2 nd and 6 th floors) has an option to extend the lease until June 2034 and the lease at 111 8 th Avenue (3 rd and 7 th floors)
has an option to extend the lease until February 2032. The lease at 410 Commerce Boulevard has no extension options. As part of the Telx Acquisition and
European Portfolio Acquisition, leases relating to operating facilities, offices, and equipment under various lease agreements expire during the years ending
December 2018 through December 2037.

We have a fully prepaid ground lease on 2055 E. Technology Circle that expires in 2083. We have a fully prepaid ground lease on Cateringweg 5 that

expires in 2059. The ground lease at Naritaweg 52 has been prepaid through December 2036.

40

Table of Contents

Index to Financial Statements

Customer Diversification

As of December 31, 2017 , our portfolio was leased to over 2,300 companies, many of which are internationally recognized firms. The following table sets

forth information regarding the 20 largest customers in our portfolio based on annualized rent as of December 31, 2017 (dollar amounts in thousands).

Tenant

IBM

Fortune 50 Software Company

Facebook, Inc.

Cyxtera Technologies, Inc. (3)

Oracle America, Inc.

Verizon
Fortune 25 Investment Grade-Rated
Company

Equinix

Rackspace

1

2

3

4

5

6

7

8

9

10 LinkedIn Corporation
11 AT&T
12

Fortune 500 SaaS Provider

13

JPMorgan Chase & Co.

14 Comcast Corporation
15 DXC Technology Company
16 CenturyLink, Inc.
17

SunGard Availability Services LP

18 Morgan Stanley
19 NTT Communications Company
20 Charter Communications

Total / Weighted Average

Number 
of 
Locations

Total 
Occupied 
Square 
Feet (1)(4)

Percentage 
of Net 
Rentable 
Square 
Feet (4)

Annualized 
Rent (2)(4)

Percentage 
of 
Annualized 
Rent

Weighted 
Average 
Remaining 
Lease 
Term in 
Months

26  
16  
16  
19  
16  
67  

7  
18  
8  
7  
51  
7  
16  
27  
7  
82  
11  
9  
15  
18  

1,012,467  
1,642,275  
813,894  
1,938,657  
511,231  
452,809  

493,596  
959,679  
480,284  
366,992  
656,853  
273,349  
260,678  
166,272  
232,114  
428,465  
222,187  
167,085  
237,932  
144,163  
11,460,982  

4.6%   $
7.4%  
3.7%  
8.8%  
2.3%  
2.0%  

2.2%  
4.3%  
2.2%  
1.7%  
3.0%  
1.2%  
1.2%  
0.8%  
1.0%  
1.9%  
1.0%  
0.8%  
1.1%  
0.7%  
51.9%   $

136,542  
131,157  
120,753  
77,374  
66,174  
60,469  

58,554  
56,930  
50,204  
44,647  
40,466  
40,344  
31,702  
31,163  
29,371  
26,717  
24,816  
23,428  
23,419  
23,092  
1,097,322  

6.5%  
6.2%  
5.8%  
3.7%  
3.2%  
2.9%  

2.8%  
2.7%  
2.4%  
2.1%  
1.9%  
1.9%  
1.5%  
1.5%  
1.4%  
1.3%  
1.2%  
1.1%  
1.1%  
1.1%  
52.3%  

50

76

42

56

38

39

66

137

106

80

53

64

40

86

17

70

87

55

48

76

66

Note: Our direct customers may be the entities named in the table above or their subsidiaries or affiliates.
(1)

Occupied square footage is defined as leases that commenced on or before December 31, 2017 . For some of our properties, we calculate occupancy based
on factors in addition to contractually leased square feet, including available power, required support space and common area.
Annualized rent represents the monthly contractual base rent (defined as cash base rent before abatements) under existing leases as of December 31, 2017
multiplied by 12.
Represents leases with former CenturyLink, Inc. affiliates, which are our direct customers. Cyxtera Technologies, Inc. acquired the data center and
colocation business, including such direct customers, of CenturyLink, Inc. in 2Q 2017.
Represents consolidated portfolio plus our managed portfolio of unconsolidated joint ventures based on our ownership percentage.

(2)

(3)

(4)

41

 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Lease Distribution

The following table sets forth information relating to the distribution of leases in the properties in our portfolio, based on net rentable square feet (excluding
approximately 2.7 million square feet of space under active development and approximately 1.7 million square feet of space held for development at December 31,
2017 ) under lease as of December 31, 2017 (dollar amounts in thousands).

Square Feet Under Lease
Available

2,500 or less

2,501 - 10,000

10,001 - 20,000

20,001 - 40,000

40,001 - 100,000

Greater than 100,000

Portfolio Total

Total Net 
Rentable 
Square 
Feet(1)(3)

Percentage 
of Net 
Rentable 
Square 
Feet(1)

Annualized 
Rent(2)(3)

Percentage 
of 
Annualized 
Rent

2,528,626  
1,624,583  
2,589,701  
5,739,871  
4,278,349  
4,318,334  
3,589,546  
24,669,010  

10.3%  
6.6%   $
10.5%  
23.3%  
17.3%  
17.4%  
14.6%  
100.0%   $

—  
319,463  
311,072  
688,464  
446,093  
218,165  
115,349  
2,098,606  

—

15.2%

14.8%

32.8%

21.3%

10.4%

5.5%

100.0%

(1)

(2)

(3)

For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including available power,
required support space and common area. We estimate the total net rentable square feet available for lease based on a number of factors in addition to
contractually leased square feet, including available power, required support space and common area.
Annualized rent represents the monthly contractual base rent (defined as cash base rent before abatements) under existing leases as of December 31, 2017
multiplied by 12.
Represents consolidated portfolio plus our managed portfolio of unconsolidated joint ventures based on our ownership percentage.

42

 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Lease Expirations

The following table sets forth a summary schedule of the lease expirations for leases in place as of December 31, 2017 plus available space for ten calendar
years at the properties in our portfolio, excluding approximately 2.7 million square feet of space under active development and approximately 1.7 million square
feet of space held for development at December 31, 2017 . Unless otherwise stated in the footnotes to the table below, the information set forth in the table assumes
that tenants exercise no renewal options and all early termination rights (dollar amounts in thousands).

Year
Available

Month to Month (3)
2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

Thereafter

Portfolio Total / Weighted Average

Square 
Footage of 
Expiring 
Leases (1)(4)

Percentage 
of Net 
Rentable 
Square 
Feet (4)

Annualized 
Rent (2)(4)

Percentage 
of 
Annualized 
Rent (4)

Annualized 
Rent Per 
Occupied 
Square 
Foot (4)

Annualized 
Rent Per 
Occupied 
Square 
Foot at 
Expiration (4)

Annualized 
Rent at 
Expiration

2,528,626  
223,507  
2,005,531  
3,444,722  
2,354,776  
2,696,638  
2,575,314  
1,457,486  
1,514,345  
1,426,676  
986,168  
780,746  
2,674,475  
24,669,010  

10.3%    
0.9%   $
8.1%  
14.0%  
9.6%  
10.9%  
10.4%  
5.9%  
6.1%  
5.8%  
4.0%  
3.2%  
10.8%  
100.0%   $

59,992  
303,772  
365,983  
265,144  
220,117  
245,781  
133,049  
127,814  
84,021  
87,459  
64,781  
140,693  
2,098,606  

2.9%   $
14.5%  
17.4%  
12.6%  
10.5%  
11.7%  
6.3%  
6.1%  
4.0%  
4.2%  
3.1%  
6.7%  
100.0%   $

268   $
151  
106  
113  
82  
95  
91  
84  
59  
89  
83  
53  
95   $

269   $
152  
109  
119  
88  
106  
101  
98  
70  
105  
105  
69  
104   $

60,044

304,351

376,296

279,353

237,657

273,076

147,498

149,147

99,740

103,396

81,644

185,822

2,298,024

(1)

(2)

(3)
(4)

For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including available power,
required support space and common area. We estimate the total net rentable square feet available for lease based on a number of factors in addition to
contractually leased square feet, including available power, required support space and common area.
Annualized rent represents the monthly contractual base rent (defined as cash base rent before abatements) under existing leases as of December 31, 2017
multiplied by 12.
Includes leases, licenses and similar agreements that upon expiration have been automatically renewed on a month-to-month basis.
Represents consolidated portfolio plus our managed portfolio of unconsolidated joint ventures based on our ownership percentage.

ITEM 3.    LEGAL PROCEEDINGS

In the ordinary course of our business, we may become subject to tort claims, breach of contract and other claims and administrative proceedings. As of

December 31, 2017 , we were not a party to any legal proceedings which we believe would have a material adverse effect on our operations or financial position.

ITEM 4.    MINE SAFETY DISCLOSURES

Not applicable.

43

 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

PART II

ITEM 5.    MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY
SECURITIES

Digital Realty Trust, Inc.

Digital Realty Trust, Inc.’s common stock has been listed, and is traded, on the New York Stock Exchange, or the NYSE, under the symbol “DLR” since

October 29, 2004. The following table sets forth, for the periods indicated, the high and low last sale prices in dollars on the NYSE for our common stock and the
dividends we declared with respect to the periods indicated.

First Quarter 2016

Second Quarter 2016

Third Quarter 2016

Fourth Quarter 2016

First Quarter 2017

Second Quarter 2017

Third Quarter 2017

Fourth Quarter 2017

High

Low

Dividends 
Declared

89.34   $

109.08   $

113.21   $

98.79   $

109.00   $

121.53   $

127.23   $

124.16   $

69.89   $

85.50   $

91.27   $

85.63   $

98.03   $

105.17   $

108.73   $

109.19   $

0.88000

0.88000

0.88000

0.88000

0.93000

0.93000

0.93000

0.93000

$

$

$

$

$

$

$

$

Digital Realty Trust, Inc. intends to continue to declare quarterly dividends on its common stock. The actual amount, form and timing of dividends, however,
will be at the discretion of Digital Realty Trust, Inc.'s board of directors and will depend upon the Company's financial condition in addition to the requirements for
qualification as a REIT under the Code, and no assurance can be given as to the amounts, form or timing of future dividends. Our global revolving credit facility
and our term loan facility prohibit us from making distributions to our stockholders, or redeeming or otherwise repurchasing shares of our capital stock, including
our common stock, after the occurrence and during the continuance of an event of default, except in limited circumstances including as necessary to enable us to
maintain our qualification as a REIT and to avoid the payment of income or excise tax. Consequently, after the occurrence and during the continuance of an event
of default under our global revolving credit facility or term loan facility, we may not be able to pay all or a portion of the dividends payable to the holders of our
common stock.

Subject to the distribution requirements applicable to REITs under the Code, Digital Realty Trust, Inc. intends, to the extent practicable, to invest
substantially all of the proceeds from sales and refinancings of its assets in real estate-related assets and other assets. Digital Realty Trust, Inc. may, however,
under certain circumstances, make a dividend of capital or of assets. Such dividends, if any, will be made at the discretion of Digital Realty Trust, Inc.'s board of
directors.

As of February 27, 2018, there were approximately 481 holders of record of Digital Realty Trust, Inc.’s common stock. This figure does not reflect the

beneficial ownership of shares held in nominee name.

44

 
 
 
 
 
Table of Contents

Index to Financial Statements

Digital Realty Trust, L.P.

There is no established trading market for Digital Realty Trust, L.P.’s common units of limited partnership. As of February 27, 2018, there were 93 holders

of record of common units, including Digital Realty Trust, L.P.’s general partner, Digital Realty Trust, Inc.

The following table sets forth, for the periods indicated, the distributions per common unit that our Operating Partnership declared with respect to the periods

indicated.

First Quarter 2016

Second Quarter 2016

Third Quarter 2016

Fourth Quarter 2016

First Quarter 2017

Second Quarter 2017

Third Quarter 2017

Fourth Quarter 2017

Distributions 
Declared

0.88000

0.88000

0.88000

0.88000

0.93000

0.93000

0.93000

0.93000

$

$

$

$

$

$

$

$

Digital Realty Trust, L.P. currently intends to continue to make regular quarterly distributions to holders of its common units. Any future distributions will be

declared at the discretion of the board of directors of Digital Realty Trust, L.P.’s general partner, Digital Realty Trust, Inc., and will depend on our actual cash
flow, financial condition, capital requirements, the annual distribution requirements under the REIT provisions of the Code, and such other factors as the board of
directors may deem relevant.

45

 
 
Table of Contents

Index to Financial Statements

The following graph compares the yearly change in the cumulative total stockholder return on Digital Realty Trust, Inc.’s common stock during the period

from December 31, 2012 through December 31, 2017 , with the cumulative total returns on the MSCI US REIT Index (RMS) and the S&P 500 Market Index. The
comparison assumes that $100 was invested on December 31, 2012 in Digital Realty Trust, Inc.’s common stock and in each of these indices and assumes
reinvestment of dividends, if any.

STOCK PERFORMANCE GRAPH

COMPARISON OF CUMULATIVE TOTAL RETURNS
AMONG DIGITAL REALTY TRUST, INC., S&P 500 INDEX AND RMS INDEX

Assumes $100 invested on December 31, 2012
Assumes dividends reinvested
To fiscal year ending December 31, 2017

Pricing Date
December 31, 2012

December 31, 2013

December 31, 2014

December 31, 2015

December 31, 2016

December 31, 2017

DLR($)

S&P 500($)

RMS($)

100.0  

76.5  

109.1  

131.1  

176.8  

211.7  

100.0  

132.4  

150.5  

152.6  

170.8  

208.1  

100.0

102.5

133.6

137.0

148.8

156.3

46

 
 
 
Table of Contents

Index to Financial Statements

•

•

•

This graph and the accompanying text are not “soliciting material,” are not deemed filed with the SEC and are not to be incorporated by reference in any
filing by us under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date
hereof and irrespective of any general incorporation language in any such filing.

The stock price performance shown on the graph is not necessarily indicative of future price performance.

The hypothetical investment in Digital Realty Trust, Inc.’s common stock presented in the stock performance graph above is based on the closing price of
the common stock on December 31, 2012.

SALES OF UNREGISTERED EQUITY SECURITIES

Digital
Realty
Trust,
Inc.

None.

Digital
Realty
Trust,
L.P.

During the year ended December 31, 2017 , our Operating Partnership issued partnership units in private placements in reliance on the exemption from

registration provided by Section 4(a)(2) of the Securities Act, in the amounts and for the consideration set forth below:

During the year ended December 31, 2017 , Digital Realty Trust, Inc. issued an aggregate of 17,668 shares of its common stock upon the exercise of stock

options. Digital Realty Trust, Inc. contributed the proceeds from the option exercises of approximately $0.7 million to our Operating Partnership and our Operating
Partnership issued to Digital Realty Trust, Inc. an aggregate of 17,668 common units, as required by our Operating Partnership’s partnership agreement.

During the year ended December 31, 2017 , Digital Realty Trust, Inc. issued an aggregate of 272,047 shares of its common stock in connection with
restricted stock awards for no cash consideration. For each share of common stock issued by Digital Realty Trust, Inc. in connection with such awards, our
Operating Partnership issued a restricted common unit to Digital Realty Trust, Inc. During the year ended December 31, 2017 , our Operating Partnership issued an
aggregate of 272,047 common units to Digital Realty Trust, Inc., as required by our Operating Partnership’s partnership agreement. During the year ended
December 31, 2017 , an aggregate of 22,997 shares of its common stock were forfeited to Digital Realty Trust, Inc. in connection with restricted stock awards for a
net issuance of 249,050 shares of common stock.

All other issuances of unregistered equity securities of our Operating Partnership during the year ended December 31, 2017 have previously been disclosed
in filings with the SEC. For all issuances of units to Digital Realty Trust, Inc., our Operating Partnership relied on Digital Realty Trust, Inc.’s status as a publicly
traded NYSE-listed company with over $21.4 billion in total consolidated assets and as our Operating Partnership’s majority owner and general partner as the basis
for the exemption under Section 4(a)(2) of the Securities Act.

REPURCHASES OF EQUITY SECURITIES

Digital
Realty
Trust,
Inc.

None.

Digital
Realty
Trust,
L.P.

None.

ITEM 6.    SELECTED FINANCIAL DATA

SELECTED COMPANY FINANCIAL AND OTHER DATA (Digital Realty Trust, Inc.)

The following table sets forth selected consolidated financial and operating data on an historical basis for Digital Realty Trust, Inc.

47

 
Table of Contents

Index to Financial Statements

The following data should be read in conjunction with our financial statements and notes thereto and “Management’s Discussion and Analysis of Financial

Condition and Results of Operations” included elsewhere in this Form 10-K. Certain prior year amounts have been reclassified to conform to the current year
presentation.

Year Ended December 31,

2017

2016

2015

2014

2013

(Amounts in thousands, except share and per share data)

Statement of Operations Data:

Operating Revenues:

Rental

Tenant reimbursements

Interconnection and other

Fee income

Other

Total operating revenues

Operating Expenses:

$

1,774,649   $

1,542,511   $

1,354,986   $

1,256,086   $

440,224  

235,652  

6,372  

1,031  

355,903  

204,317  

6,285  

33,197  

359,875  

40,759  

6,638  

1,078  

350,234  

—  

7,268  

2,850  

1,155,051

323,286

—

3,520

402

2,457,928  

2,142,213  

1,763,336  

1,616,438  

1,482,259

Rental property operating and maintenance

Property taxes

Insurance

Change in fair value of contingent consideration

Depreciation and amortization

General and administrative

Transaction and integration expenses

Impairment on investments in real estate

Other

Total operating expenses

Operating income

Other Income (Expenses):

Equity in earnings of unconsolidated joint ventures

Gain on insurance settlement

Gain on sale of properties

Gain on contribution of investment properties to
unconsolidated joint ventures

Gain on sale of equity investment

Interest and other income

Interest expense

Tax expense

Gain (loss) from early extinguishment of debt

Net income

Net income attributable to noncontrolling interests

Net income attributable to Digital Realty Trust, Inc.

Preferred stock dividends

Issuance costs associated with redeemed preferred
stock

Net income available to common stockholders

Per Share Data:

Basic income per share available to common
stockholders

Diluted income per share available to common
stockholders

Cash dividend per common share

$

$

$

$

759,616  

124,014  

10,981  

—  

842,464  

161,441  

76,048  

28,992  

3,077  

660,177  

102,497  

9,492  

—  

699,324  

152,733  

20,491  

—  

213  

549,885  

92,588  

8,809  

(44,276)  

570,527  

105,549  

17,400  

—  

60,943  

503,140  

91,538  

8,643  

(8,093)  

538,513  

93,188  

1,303  

126,470  

3,070  

456,596

90,321

8,743

(1,762)

475,464

65,653

4,605

—

827

2,006,633  

451,295  

1,644,927  

497,286  

1,361,425  

401,911  

1,357,772  

258,666  

1,100,447

381,812

25,516  

—  

40,354  

—  

—  

3,655  

(258,642)  

(7,901)  

1,990  

256,267  

(8,008)  

248,259  

(68,802)  

17,104  

—  

169,902  

—  

—  

(4,564)  

(236,480)  

(10,385)  

(1,011)  

431,852  

(5,665)  

426,187  

(83,771)  

15,491  

—  

94,604  

—  

—  

(2,381)  

(201,435)  

(6,451)  

(148)  

301,591  

(4,902)  

296,689  

(79,423)  

13,289  

—  

15,945  

95,404  

14,551  

2,663  

(191,085)  

(5,238)  

(780)  

203,415  

(3,232)  

200,183  

(67,465)  

(6,309)  

173,148   $

(10,328)  

332,088   $

—  

—  

217,266   $

132,718   $

0.99   $

2.21   $

1.57   $

1.00   $

0.99   $

3.72   $

2.20   $

3.52   $

1.56   $

3.40   $

0.99   $

3.32   $

48

9,796

5,597

—

115,609

—

139

(189,399)

(1,292)

(1,813)

320,449

(5,961)

314,488

(42,905)

—

271,583

2.12

2.12

3.12

 
 
 
 
 
 
 
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
 
   
   
   
   
Table of Contents

Index to Financial Statements

Weighted average common shares
outstanding:

Basic

Diluted

Balance Sheet Data:

Net investments in real estate

Total assets

Global revolving credit facility

Unsecured term loan

Unsecured senior notes, net of discount

Exchangeable senior debentures, net of discount

Mortgages and other secured loans, net of premiums

Total liabilities

Redeemable noncontrolling interests in operating
partnership

Total stockholders' equity

Noncontrolling interests in operating partnership

Noncontrolling interests in consolidated joint ventures

174,059,386  

174,895,098  

149,953,662  

150,679,688  

138,247,606  

138,865,421  

133,369,047  

133,637,235  

127,941,134

128,127,641

2017

2016

2015

2014

2013

December 31,

$

13,841,186   $

8,996,362   $

8,770,212   $

8,203,287   $

21,404,345  

12,192,585  

11,416,063  

9,526,784  

550,946  

1,420,333  

6,570,757  

—  

106,582  

10,300,993  

53,902  

10,349,081  

698,126  

2,243  

8,384,086

9,626,830

724,668

1,020,984

2,364,232

266,400

585,608

5,980,318

199,209  

1,482,361  

4,153,797  

—  

3,240  

7,060,288  

960,271  

923,267  

525,951  

976,600  

3,712,569  

2,791,758  

—  

302,930  

6,879,561  

—  

378,818  

5,612,546  

—  

—  

—  

—

5,096,015  

4,500,132  

3,878,256  

3,610,516

29,684  

6,598  

29,612  

6,758  

29,191  

6,791  

29,027

6,969

Total liabilities and equity

$

21,404,345   $

12,192,585   $

11,416,063   $

9,526,784   $

9,626,830

Cash flows from (used in):

Operating activities

Investing activities

Financing activities

2017

2016

2015

2014

2013

Year Ended December 31,

$

1,023,305   $

911,242   $

796,840   $

655,888   $

(1,357,153)  

321,200  

(1,303,597)  

350,617  

(2,527,501)  

1,750,531  

(644,180)  

(26,974)  

656,390

(1,060,609)

401,832

49

 
   
   
   
   
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
   
   
   
   
Table of Contents

Index to Financial Statements

SELECTED COMPANY FINANCIAL AND OTHER DATA (Digital Realty Trust, L.P.)

The following table sets forth selected consolidated financial and operating data on an historical basis for our Operating Partnership.

2017

2016

2015

2014

2013

(Amounts in thousands, except unit and per unit data)

Year Ended December 31,

Statement of Operations Data:

Operating Revenues:

Rental

Tenant reimbursements

Interconnection and other

Fee income

Other

Total operating revenues

Operating Expenses:

Rental property operating and maintenance

Property taxes

Insurance

Change in fair value of contingent consideration

Depreciation and amortization

General and administrative

Transaction and integration expenses

Impairment on investments in real estate

Other

Total operating expenses

Operating income

Other Income (Expenses):

Equity in earnings of unconsolidated joint ventures

Gain on insurance settlement

Gain on sale of properties

Gain on contribution of investment properties to
unconsolidated joint ventures
Gain on sale of equity investment

Interest and other income

Interest expense

Tax expense

Gain (loss) from early extinguishment of debt

Net income

Net (income) loss attributable to noncontrolling interests in
consolidated joint ventures
Net income attributable to Digital Realty Trust, L.P.

Preferred units distributions

Issuance costs associated with redeemed 
preferred units

Net income available to common unitholders

Per Unit Data:
Basic income per unit available to common unitholders

Diluted income per unit available to common unitholders

$

$

$

$

1,774,649

  $

1,542,511

  $

1,354,986

  $

440,224

235,652

6,372

1,031

355,903

204,317

6,285

33,197

359,875

40,759

6,638

1,078

2,457,928

2,142,213

1,763,336

759,616

124,014

10,981

—  

842,464

161,441

76,048

28,992

3,077

2,006,633

451,295

25,516

—  

40,354

—  
—  

3,655

(258,642)

(7,901)

1,990

256,267

(4,238)

252,029

(68,802)

660,177

102,497

9,492

—  

699,324

152,733

20,491

—  

213

1,644,927

497,286

17,104

—  

169,902

—  
—  

(4,564)

(236,480)

(10,385)

(1,011)

431,852

(367)

431,485

(83,771)

549,885

92,588

8,809

(44,276)

570,527

105,549

17,400

—  

60,943

1,361,425

401,911

15,491

—  

94,604

—  
—  

(2,381)

(202,800)

(6,451)

(148)

300,226

(460)

299,766

(79,423)

1,256,086   $
350,234  
—  
7,268  
2,850  
1,616,438  

503,140  
91,538  
8,643  
(8,093)  
538,513  
93,188  
1,303  
126,470  
3,070  
1,357,772  
258,666  

13,289  
—  
15,945  

95,404  
14,551  
2,663  
(191,085)  
(5,238)  
(780)  
203,415  

(465)  
202,950  
(67,465)  

(6,309)

176,918

  $

(10,328)

337,386

  $

—  

220,343

  $

—  
135,485   $

0.99

0.99

  $
  $

2.21

2.20

  $
  $

1.56

1.55

  $
  $

1.00   $
0.99   $

50

1,155,051

323,286

—

3,520

402

1,482,259

456,596

90,321

8,743

(1,762)

475,464

65,653

4,605

—

827

1,100,447

381,812

9,796

5,597

—

115,609

—

139

(189,399)

(1,292)

(1,813)

320,449

(595)

319,854

(42,905)

—

276,949

2.12

2.12

 
 
 
 
 
 
 
 
   
   
   
   
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
Table of Contents

Index to Financial Statements

Cash distributions per common unit

$

3.72   $

3.52   $

3.40   $

3.32   $

3.12

Weighted average common units outstanding:

Basic

Diluted

178,055,936  
178,891,648  

152,359,680  
153,085,706  

140,905,897  
141,523,712  

136,122,661  
136,390,849  

130,462,534

130,649,041

2017

2016

2015

2014

2013

December 31,

Balance Sheet Data:

Net investments in real estate

Total assets

Global revolving credit facility

Unsecured term loan

Unsecured senior notes, net of discount

Exchangeable senior debentures, net of discount

Mortgages and other secured loans, net of premiums

Total liabilities

Redeemable limited partner common units

General partner’s capital

Limited partners’ capital

Accumulated other comprehensive income (loss)

Noncontrolling interests in consolidated joint ventures

$

13,841,186   $

8,996,362   $

8,770,212   $

8,203,287   $

21,404,345  

12,192,585  

11,416,063  

9,526,784  

960,271  

923,267  

525,951  

976,600  

3,712,569  

2,791,758  

550,946  

1,420,333  

6,570,757  

—  

106,582  

10,300,993  

53,902  

10,457,513  

702,579  

(112,885)  

2,243  

199,209  

1,482,361  

4,153,797  

—  

3,240  

7,060,288  

—  

5,231,620  

34,698  

(140,619)  

6,598  

—  

302,930  

6,880,926  

—  

4,595,357  

33,986  

(100,964)  

6,758  

8,384,086

9,626,830

724,668

1,020,984

2,364,232

266,400

585,608

5,980,318

—

—  

378,818  

5,612,546  

—  

3,923,302  

3,599,825

32,578  

(48,433)  

6,791  

31,261

8,457

6,969

Total liabilities and capital

$

21,404,345   $

12,192,585   $

11,416,063   $

9,526,784   $

9,626,830

Cash flows from (used in):

Operating activities

Investing activities

Financing activities

2017

2016

2015

2014

2013

Year Ended December 31,

$

1,023,305   $

911,242   $

796,840   $

655,888   $

(1,357,153)  

321,200  

(1,303,597)  

350,617  

(2,527,501)  

1,750,531  

(644,180)  

(26,974)  

656,390

(1,060,609)

401,832

51

 
   
   
   
   
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
 
 
 
   
   
   
   
Table of Contents

Index to Financial Statements

ITEM 7.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with the consolidated financial statements and notes thereto appearing elsewhere in this report. We

make statements in this section that are forward-looking statements within the meaning of the federal securities laws. For a complete discussion of forward-
looking statements, see the section in this report entitled “Forward-Looking Statements.” Certain risk factors may cause our actual results, performance or
achievements to differ materially from those expressed or implied by the following discussion. For a discussion of such risk factors, see the sections in this report
entitled “Risk Factors” and “Forward-Looking Statements.”

Occupancy percentages included in the following discussion, for some of our properties, are calculated based on factors in addition to contractually leased

square feet, including available power, required support space and common area.

Overview

Our Company . Digital Realty Trust, Inc. completed its initial public offering of common stock, or our IPO, on November 3, 2004. We believe that we have

operated in a manner that has enabled us to qualify, and have elected to be treated, as a REIT under Sections 856 through 860 of the Code. Our Company was
formed on March 9, 2004. During the period from our formation until we commenced operations in connection with the completion of our IPO, we did not have
any corporate activity other than the issuance of shares of Digital Realty Trust, Inc. common stock in connection with the initial capitalization of the Company. Our
Operating Partnership was formed on July 21, 2004.

On September 14, 2017, we completed the acquisition of DuPont Fabros Technology, Inc., in an all-stock merger, which we refer to as the DFT Merger, for
equity consideration of approximately $6.2 billion. We believe this transaction expanded our reach with a complementary footprint in top U.S. metropolitan areas
while enhancing our ability to meet the growing demand for hyper-scale and public cloud solutions and solidifying our blue-chip customer base. As part of the
DFT Merger, we acquired 15 data centers, 14 of which are located in the United States and one is located in Canada.

On September 14, 2017, pursuant to the Agreement and Plan of Merger (the “Merger Agreement”) by and among Digital Realty Trust, Inc., Digital Realty

Trust, L.P., Penguins REIT Sub, LLC, a wholly owned subsidiary of Digital Realty Trust, Inc.(“Merger Sub”), Penguins OP Sub 2, LLC, a wholly owned
subsidiary of Digital Realty Trust, L.P. (“Merger Sub GP”), Penguins OP Sub, LLC, a subsidiary of Digital Realty Trust, L.P. and Merger Sub GP (the
“Partnership Merger Sub”), DuPont Fabros Technology, Inc., a Maryland corporation (“DFT”), and DuPont Fabros Technology, L.P., a Maryland limited
partnership (the “DFT Operating Partnership”) (i) DFT merged with and into Merger Sub (the “REIT Merger”) and (ii) the Partnership Merger Sub merged with
and into the DFT Operating Partnership (the “Partnership Merger” and, together with the REIT Merger, the “DFT merger” or “the merger”). Upon completion of
the REIT Merger, Merger Sub survived and the separate corporate existence of DFT ceased.

Business and strategy . Our primary business objectives are to maximize: (i) sustainable long-term growth in earnings and funds from operations per share

and unit, (ii) cash flow and returns to our stockholders and our operating partnership’s unitholders through the payment of distributions and (iii) return on invested
capital. We expect to accomplish our objectives by achieving superior risk-adjusted returns, prudently allocating capital, diversifying our product offerings and
driving revenue growth and operating efficiencies. We plan to focus on our core business of investing in and developing and operating data centers. A significant
component of our current and future internal growth is anticipated through the development of our existing space held for development, acquisition of land for
future development and acquisition of new properties. We target high quality, strategically located properties containing the physical and connectivity
infrastructure that supports the applications and operations of data center and technology industry customers and properties that may be developed for such use.
Most of our data center properties contain fully redundant electrical supply systems, multiple power feeds, above-standard cooling systems, raised floor areas,
extensive in-building communications cabling and high-level security systems. We focus exclusively on owning, acquiring, developing and operating data centers
because we believe that the growth in data center demand and the technology-related real estate industry generally will continue to outpace the overall economy.

As of December 31, 2017 , our portfolio included 205 data centers, including seven data centers held-for-sale and 18 data centers held as investments in

unconsolidated joint ventures, with approximately 32.1 million rentable square feet including approximately 2.7 million square feet of space under active
development and approximately 1.7 million square feet of space held for development. The 18  data centers held as investments in unconsolidated joint ventures
have an aggregate of approximately 2.2 million rentable square feet. The 21 parcels of developable land we own comprised approximately 539 acres. At
December 31, 2017 , approximately 2.7 million square feet was under construction for Turn-Key Flex®, colocation and

52

Table of Contents

Index to Financial Statements

Powered Base Building® products, all of which are expected to be income producing on or after completion, in seven U.S. metropolitan areas, four European
metropolitan areas, two Australian metropolitan areas, one Canadian metropolitan area and one Asian metropolitan area, consisting of approximately 1.3 million
square feet of base building construction and 1.4 million square feet of data center construction.

We have developed detailed, standardized procedures for evaluating new real estate investments to ensure that they meet our financial, technical and other
criteria. We expect to continue to acquire additional assets as part of our growth strategy. We intend to aggressively manage and lease our assets to increase their
cash flow. We may continue to build out our development portfolio when justified by anticipated demand and returns.

We may acquire properties subject to existing mortgage financing and other indebtedness or we may incur new indebtedness in connection with acquiring or

refinancing these properties. Debt service on such indebtedness will have a priority over any cash dividends with respect to Digital Realty Trust, Inc.’s common
stock and preferred stock. We are committed to maintaining a conservative capital structure. We target a debt-to-Adjusted EBITDA ratio at or less than 5.5x, fixed
charge coverage of greater than three times, and floating rate debt at less than 20% of total outstanding debt. In addition, we strive to maintain a well-laddered debt
maturity schedule, and we seek to maximize the menu of our available sources of capital, while minimizing the cost.

Revenue base . As of December 31, 2017 , we operated 205 data centers through our Operating Partnership, including seven data centers held-for-sale and 18

data centers held as investments in unconsolidated joint ventures, and developable land. These data centers are mainly located throughout North America, with 38
located in Europe, seven in Asia and five properties in Australia. We, through our predecessor, acquired our first portfolio property in January 2002 and have
added properties through acquisition and development activities as set forth in the table below:

The following table presents an overview of our portfolio of data centers, including the seven data centers held-for-sale and 18 data centers held as

investments in unconsolidated joint ventures, and developable land, based on information as of December 31, 2017 .

Metropolitan Area

  Data Center Buildings  

Net Rentable Square
Feet (1)

Space Under Active
Development (2)

Space Held for
Development (3)

North America

Northern Virginia

Chicago

New York

Silicon Valley

Dallas

Phoenix

San Francisco

Atlanta

Boston

Los Angeles

Houston

Toronto, Canada

Denver

Austin

Miami

Portland

Minneapolis / St. Paul

29

9

12

19

21

4

5

5

5

4

6

3

2

1

2

1

2

53

4,810,736

2,691,942

1,907,645

2,185,341

3,304,082

990,385

989,743

775,606

528,029

818,479

392,816

188,066

371,500

85,688

198,461

48,574

406,929

692,187  
305,003  
34,821  
65,680  
56,126  
—  
13,500  
—  
—  
—  
—  
711,000  
—  
—  
22,535  
—  
—  

90,998

197,160

278,089

—

150,152

108,926

—

313,581

50,649

—

13,969

—

—

—

5,318

—

—

 
 
 
 
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Metropolitan Area

  Data Center Buildings  

Net Rentable Square
Feet (1)

Space Under Active
Development (2)

Space Held for
Development (3)

Charlotte

Seattle

North America Total / Weighted Average

Europe

London, United Kingdom

Amsterdam, Netherlands

Dublin, Ireland

Frankfurt, Germany

Paris, France

Geneva, Switzerland

Manchester, United Kingdom

Europe Total / Weighted Average

Asia Pacific

Singapore

Melbourne

Sydney

Osaka

Asia Pacific Total / Weighted Average

3

1

134

16

10

5

2

3

1

1

38

2

2

3

1

8

95,499

41,156

20,830,677

1,400,717

474,217

307,775

47,641

185,994

59,190

38,016

2,513,550

465,519

125,329

138,207

—  

729,055

Non-Data Center Properties

—  

278,068

Managed Unconsolidated Joint Ventures

Northern Virginia

Hong Kong

Silicon Valley

Dallas

New York

Non-Managed Unconsolidated Joint Ventures

Seattle

Osaka

Tokyo

Total, excluding held for sale

Held for Sale

Total

4

1

4

3

1

13

2

1

2

5

198

7

205

54

546,572

114,883

326,305

319,876

108,336

1,415,972

451,369

92,682

277,196

821,247

—  
—  
1,900,852  

—

74,790

1,283,632

171,471  
21,362  
49,051  
120,030  
—  
—  
—  
361,914  

—  
21,241  
176,150  
239,999  
437,390  

—  

—  
—  
—  
—  
—  
—  

—  
—  
—  
—  

55,060

159,947

—

—

—

—

—

215,007

75,119

—

—

—

75,119

—

—

71,417

—

—

—

71,417

—

—

—

—

26,588,569

2,700,156  

1,645,175

1,067,704

—  

89,923

27,656,273

2,700,156  

1,735,098

 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
 
 
 
 
   
   
   
   
 
 
 
 
   
   
   
   
 
 
 
Table of Contents

Index to Financial Statements

(1)

(2)
(3)

Current net rentable square feet as of December 31, 2017 , which represents the current square feet under lease as specified in the applicable lease
agreements plus management’s estimate of space available for lease based on engineering drawings. Includes customers’ proportional share of common
areas and excludes space under active development and space held for development.
Space under active development includes current base building and data center projects in progress.
Space held for development includes space held for future data center development, and excludes space under active development.

As of December 31, 2017 , our portfolio, including the 18 data centers held as investments in unconsolidated joint ventures, were approximately 90.2%

leased excluding approximately 2.7 million square feet of space under active development and approximately 1.7 million square feet of space held for
development. Due to the capital-intensive and long-term nature of the operations being supported, our lease terms are generally longer than standard commercial
leases. As of  December 31, 2017 , our average remaining lease term is approximately  five years . Our scheduled lease expirations through December 31,
2019 are  22.1%  of rentable square feet excluding month-to-month leases, space under active development and space held for development as of  December 31,
2017 .

Factors Which May Influence Future Results of Operations

Global market and economic conditions. General economic conditions and the cost and availability of capital may be adversely affected in some or all of the
metropolitan areas in which we own properties and conduct our operations. In June 2016, a majority of voters in the United Kingdom elected to withdraw from the
European Union in a national referendum. The terms of any withdrawal are subject to ongoing negotiations. Nevertheless, the referendum has created significant
uncertainty about the future relationship between the United Kingdom and the European Union, and has given rise to calls for the governments of other European
Union member states to consider withdrawal. Instability in the U.S., European, Asia Pacific and other international financial markets and economies may adversely
affect our ability, and the ability of our customers, to replace or renew maturing liabilities on a timely basis, access the capital markets to meet liquidity and capital
expenditure requirements and may result in adverse effects on our, and our customers’, financial condition and results of operations.

In addition, our access to funds under our global revolving credit facility depends on the ability of the lenders that are parties to such facilities to meet their

funding commitments to us. We cannot assure you that long-term disruptions in the global economy and the return of tighter credit conditions among, and potential
failures or nationalizations of, third party financial institutions as a result of such disruptions will not have an adverse effect on our lenders. If our lenders are not
able to meet their funding commitments to us, our business, results of operations, cash flows and financial condition could be adversely affected.

If we do not have sufficient cash flow to continue operating our business and are unable to borrow additional funds, access our existing lines of credit or raise

equity or debt capital, we may need to source alternative ways to increase our liquidity. Such alternatives may include, without limitation, curtailing development
activity, disposing of one or more of our properties possibly on disadvantageous terms or entering into or renewing leases on less favorable terms than we
otherwise would.

Foreign currency exchange risk. For the years ended December 31, 2017 and 2016 , we had foreign operations in the United Kingdom, Ireland, France, the

Netherlands, Germany, Switzerland, Canada, Singapore, Australia, Japan and Hong Kong, and, as such, are subject to risk from the effects of exchange rate
movements of foreign currencies, which may affect future costs and cash flows. Our foreign operations are conducted in the British pound sterling, Euro, Canadian
dollar, Singapore dollar, Australian dollar, Japanese Yen and the Hong Kong dollar. Our primary currency exposures are to the British pound sterling, the Euro and
the Singapore dollar. The possible exit of the United Kingdom (or any other country) from the European Union, or prolonged periods of uncertainty relating to any
of these possibilities, could result in increased foreign currency exchange volatility. We attempt to mitigate a portion of the risk of currency fluctuation by
financing our investments in the local currency denominations, although there can be no assurance that this will be effective. As a result, changes in the relation of
any such foreign currency to U.S. dollars may affect our revenues, operating margins and distributions and may also affect the book value of our assets, the book
value of our debt and the amount of stockholders’ equity.

Rental income . The amount of rental income generated by the data centers in our portfolio depends on several factors, including our ability to maintain or

improve the occupancy rates of currently leased space and to lease currently available space and space available from lease terminations. Excluding approximately
2.7 million square feet of space under active

55

Table of Contents

Index to Financial Statements

development and approximately 1.7 million square feet of space held for development as of December 31, 2017 , the occupancy rate of our portfolio, including the
18 data centers held as investments in unconsolidated joint ventures, was approximately 90.2% of our net rentable square feet.

As of December 31, 2017 , we had over 2,300 tenants in our data center portfolio, including the 13 data centers held in our managed portfolio of

unconsolidated joint ventures. As of December 31, 2017 , approximately 91% of our leases (on a rentable square footage basis) contained base rent escalations that
were either fixed (generally ranging from 2% to 4%) or indexed based on a consumer price index or other similar inflation related index. We cannot assure you that
these escalations will cover any increases in our costs or will otherwise keep rental rates at or above market rates.

The amount of rental income we generate also depends on maintaining or increasing rental rates at our properties, which in turn depends on several factors,

including supply and demand and market rates for data center space. Included in our approximately 25.5 million net rentable square feet, excluding space under
active development and space held for development and 18 data centers held as investments in unconsolidated joint ventures, at December 31, 2017 is
approximately 1.4 million square feet of data center space with extensive installed tenant improvements available for lease. Our Turn-Key Flex ® product is an
effective solution for customers who prefer to utilize a partner with the expertise or capital budget to provide extensive data center infrastructure and security. Our
expertise in data center construction and operations enables us to lease space to these customers at a premium over other uses. In addition, as of December 31, 2017
, we had approximately 2.7 million square feet of space under active development and approximately 1.7 million square feet of space held for development, or
approximately 14% of the total rentable space in our portfolio, including the 18 data centers held as investments in unconsolidated joint ventures. Our ability to
grow earnings depends in part on our ability to develop space and lease development space at favorable rates, which we may not be able to obtain. Development
space requires significant capital investment in order to develop data center facilities that are ready for use and, in addition, we may require additional time or
encounter delays in securing tenants for development space. We may purchase additional vacant properties and properties with vacant development space in the
future. We will require additional capital to finance our development activities, which may not be available or may not be available on terms acceptable to us,
including as a result of the conditions described above under “Global market and economic conditions.”

In addition, the timing between when we sign a new lease with a customer and when that lease commences and we begin to generate rental income may be

significant and may not be easily predictable. Certain leases may provide for staggered commencement dates for additional space, the timing of which may be
delayed significantly.

Economic downturns, including as a result of the conditions described above under “Global market and economic conditions,” or regional downturns
affecting our metropolitan areas or downturns in the data center industry that impair our ability to lease or renew or re-lease space, or otherwise reduce returns on
our investments or the ability of our customers to fulfill their lease commitments, as in the case of tenant bankruptcies, could adversely affect our ability to
maintain or increase rental rates at our properties.

Scheduled lease expirations. Our ability to re-lease expiring space at rental rates equal to or in excess of current rental rates will impact our results of
operations. In addition to approximately 2.5 million square feet of available space in our portfolio, which excludes approximately 2.7 million square feet of space
under active development and approximately 1.7 million square feet of space held for development as of December 31, 2017 and the five data centers held as
investments in our non-managed unconsolidated joint ventures, leases representing approximately 8.1% and 14.0% of the net rentable square footage of our
portfolio are scheduled to expire during the years ending December 31, 2018 and 2019 , respectively.

During the year ended December 31, 2017 , we signed new leases totaling approximately 1.1 million square feet of space and renewal leases totaling

approximately 2.1 million square feet of space. The following table summarizes our leasing activity in the year ended December 31, 2017 :

56

Table of Contents

Index to Financial Statements

Leasing
Activity
(3)(4)

Renewals Signed

Turn-Key Flex ®

Powered Base Building ®

Colocation

Non-technical

New Leases Signed (5)

Turn-Key Flex ®

Colocation

Non-technical
Leasing
Activity
Summary

Turn-Key Flex ®

Powered Base Building ®

Colocation

Non-technical

Rentable
Square Feet (1)

Expiring 
Rates (2)

New 
Rates (2)

Rental Rate 
Changes

TI’s/Lease 
Commissions 
Per Square 
Foot

Weighted  
Average Lease 
Terms 
(years)

603,006   $
649,115   $
406,819   $
421,891   $

137.88   $
30.07   $
290.39   $
20.18   $

883,304  
125,793  
138,403  

1,486,310  
649,115  
532,612  
560,294  

—   $
—   $
—   $

—   $
—   $
—   $
—   $

143.35  
37.71  
300.24  
19.50  

148.71  
267.37  
23.85  

146.54  
37.71  
292.48  
20.57  

4.0 %   $
25.4 %   $
3.4 %   $
(3.4)%   $

  $
  $
  $

—

—

—

—

—

—

—

6.58  
5.04  
—  
14.10  

26.45  
25.62  
50.36  

—    
—    
—    
—    

5.5

7.7

1.4

10.2

7.4

2.3

9.9

(1)

(2)

(3)
(4)
(5)

For some of our properties, we calculate square footage based on factors in addition to contractually leased square feet, including power, required support
space and common area.
Rental rates represent annual estimated cash rent per rentable square foot adjusted for straight-line rents in accordance with GAAP. GAAP rental rates are
inclusive of tenant concessions, if any.
Excludes short-term leases.
Commencement dates for the leases signed range from 2017 to 2018.
Includes leases signed for new and re-leased space.

Our ability to re-lease or renew expiring space at rental rates equal to or in excess of current rental rates will impact our results of operations. We continue to
see strong demand in most of our key metropolitan areas for data center space and, subject to the supply of available data center space in these metropolitan areas,
expect the rental rates we are likely to achieve on re-leased or renewed data center space leases for 2018 expirations on an average aggregate basis will generally
be higher than the rates currently being paid for the same space on a GAAP basis and slightly down on a cash basis. For the year ended December 31, 2017 , rents
on renewed space increased by an average of 4.0% on a GAAP basis on our Turn-Key Flex® space compared to the expiring rents and increased by an average of
25.4% on a GAAP basis on our Powered Base Building® space compared to the expiring rents. Our past performance may not be indicative of future results, and
we cannot assure you that leases will be renewed or that our data centers will be re-leased at all or at rental rates equal to or above the current average rental rates.
Further, re-leased/renewed rental rates in a particular metropolitan area may not be consistent with rental rates across our portfolio as a whole and may fluctuate
from one period to another due to a number of factors, including local real estate conditions, local supply and demand for data center space, competition from other
data center developers or operators, the condition of the property and whether the property, or space within the property, has been developed.

57

 
 
 
 
 
 
 
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
 
   
   
   
   
   
 
 
 
 
 
Table of Contents

Index to Financial Statements

Geographic concentration. We depend on the market for data centers in specific geographic regions and significant changes in these regional metropolitan

areas can impact our future results. As of December 31, 2017 , our portfolio, including the 18 data centers held as investments in unconsolidated joint ventures,
was geographically concentrated in the following metropolitan areas:

Metropolitan Area
Northern Virginia

Chicago

Silicon Valley

London, United Kingdom

New York

Dallas

Phoenix

San Francisco

Singapore

Seattle

Atlanta

Amsterdam, Netherlands

Boston

Other

Total

Percentage of December 31,
2017 total annualized rent (1)

21.6%

12.0%

9.3%

9.2%

8.8%

8.3%

4.0%

3.2%

3.1%

2.4%

2.4%

2.1%

2.0%

11.6%

100.0%

(1)

Annualized rent is monthly contractual rent (defined as cash base rent before abatements) under existing leases as of December 31, 2017 multiplied by 12.
The aggregate amount of abatements for the year ended December 31, 2017 was approximately $21.4 million.

Operating expenses. Our operating expenses generally consist of utilities, property and ad valorem taxes, property management fees, insurance and site

maintenance costs, as well as rental expenses on our ground and building leases. In particular, our buildings require significant power to support the data center
operations contained in them. Many of our leases contain provisions under which the tenants reimburse us for all or a portion of property operating expenses and
real estate taxes incurred by us. However, we generally are not entitled to reimbursement of property operating expenses, other than utility expense, and real estate
taxes under our leases for Turn-Key Flex® facilities. We also incur general and administrative expenses, including expenses relating to our asset management
function, as well as significant legal, accounting and other expenses related to corporate governance, SEC reporting and compliance with the various provisions of
the Sarbanes-Oxley Act. Increases or decreases in such operating expenses will impact our overall performance. We expect to incur additional operating expenses
as we continue to expand.

Climate change legislation. In June 2009, the U.S. House of Representatives approved comprehensive clean energy and climate change legislation intended

to cut greenhouse gas, or GHG, emissions, via a cap-and-trade program. The U.S. Senate did not subsequently pass similar legislation. New climate change
legislation was introduced in the U.S. Senate in 2013, but significant opposition to federal climate change legislation exists.

In the absence of comprehensive federal climate change legislation, over the past several years, regulatory agencies, primarily the U.S. Environmental
Protection Agency, or EPA, and states took the lead in regulating GHG emissions in the U.S. Under the Obama administration, the EPA moved aggressively to
regulate GHG emissions from automobiles and large stationary sources, including electricity producers, using its own authority under the Clean Air Act. The
Trump administration has signaled that it intends to eliminate or modify certain of the EPA’s GHG emissions regulations and refocus the EPA’s mission away
from such regulation.

58

 
Table of Contents

Index to Financial Statements

The EPA made an endangerment finding in 2009 that allows it to create regulations imposing emissions reporting, permitting, control technology installation,

and monitoring requirements applicable to certain emitters of GHGs, including facilities that provide electricity to our data centers, although the materiality of the
impacts will not be fully known until all regulations are finalized and legal challenges are resolved. Under the Obama administration, the EPA finalized rules
imposing permitting and control technology requirements upon certain newly-constructed or modified facilities which emit GHGs under the Clean Air Act New
Source Review Prevention of Significant Deterioration, or NSR PSD, and Title V permitting programs. As a result, newly-issued NSR PSD and Title V permits for
new or modified electricity generating units (EGUs) and other facilities may need to address GHG emissions, including by requiring the installation of “Best
Available Control Technology.” The EPA implemented in December 2015 the “Clean Power Plan” regulating carbon dioxide (CO2) emissions from new and
existing coal-fired and natural gas EGUs. Existing EGUs are subject to statewide CO2 emissions reduction targets, an effort designed to achieve a thirty-two
percent reduction in nationwide existing EGU CO2 emissions by 2030 (in comparison to 2005 levels). New, modified, and reconstructed EGUs are subject to
“New Source Performance Standards” that include both technological requirements and numeric emission limits. However, twenty-four states and a number of
industry groups challenged the Clean Power Plan in federal court, and in February 2016 the U.S. Supreme Court issued a stay of the Clean Power Plan until the
legal challenges have been decided. In March 2017, President Trump ordered the EPA to review and if appropriate revise or rescind the Clean Power Plan, and the
EPA initiated this review in April 2017. Separately, the EPA’s GHG “reporting rule” requires that certain emitters, including electricity generators, monitor and
report GHG emissions. The Trump administration may seek to revise or reverse these regulations.

As a result, states may drive near-term regulation to reduce GHG emissions in the United States. At the state level, California implemented a GHG cap-and-

trade program that began imposing compliance obligations on industrial sectors, including electricity generators and importers, in January 2013. In September
2016, California adopted legislation calling for a further reduction in GHG emissions to 40% below 1990 levels by 2030, and in July 2017, California extended its
cap-and-trade program through 2030. As another example of state action, Washington began implementing in 2017 a cap on GHG emissions, and the cap will
decrease over time.

Outside the United States, the European Union, or EU (including the United Kingdom), has been operating since 2005 under a cap-and-trade program, which

directly affects the largest emitters of GHGs, including electricity producers from whom we purchase power, and the EU has taken a number of other climate
change-related initiatives, including a directive targeted at improving energy efficiency (which introduces energy efficiency auditing requirements).  The Paris
Agreement, which was adopted by the United States and 194 other countries and looks to prevent global average temperatures from increasing by more than 2
degrees Celsius above preindustrial levels officially went into force on November 4, 2016. President Trump announced in June 2017 that he will initiate the
process to withdraw the United States from the Paris Agreement; however, a number of states have formed groups supporting the Paris Agreement. National
legislation may also be implemented independently by members of the EU.  For example, in the United Kingdom, the implementation of the CRC Energy
Efficiency Scheme introduced a mandatory reporting and pricing scheme that is designed to incentivize energy efficiency and cut emissions by large energy users.
It is not yet clear how Brexit will impact the United Kingdom’s (or the EU’s) approach to climate change regulation. In Canada, the first compliance period under
Ontario’s GHG cap-and-trade program began in January 2017. Climate change regulations are in various stages of implementation in other nations as well,
including nations where we operate, such as Australia, where a GHG emissions cap was implemented in 2016.

The cost of electric power comprises a significant component of our operating expenses. Any additional taxation or regulation of energy use, including as a
result of (i) new legislation that Congress may pass, (ii) the regulations that the EPA has proposed or finalized, (iii) regulations under legislation that states have
passed or may pass, or (iv) any further legislation or regulations in the EU or other regions where we operate could significantly increase our costs, and we may not
be able to effectively pass all of these costs on to our customers. These matters could adversely impact our business, results of operations, or financial condition.

Interest rates . As of December 31, 2017 , we had approximately $1.0 billion of variable rate debt subject to interest rate swap agreements on certain
tranches of our unsecured term loans, along with $558.2 million , $406.8 million and $150.1 million of variable rate debt that was outstanding on the global
revolving credit facility, the unswapped portion of the unsecured term loans and the floating rate notes due 2019, or the 2019 Notes, respectively. The availability
of debt and equity capital may decrease or be on unfavorable terms as a result of the circumstances described above under “Global market and economic
conditions” or other factors. The effects on commercial real estate mortgages, if available, include, but may not be limited to: higher loan spreads, tightened loan
covenants, reduced loan-to-value ratios resulting in lower borrower proceeds and higher principal payments. Potential future increases in interest rates and credit
spreads may increase our interest expense and fixed charges and negatively affect our financial condition and results of operations, potentially impacting our future
access to the debt and equity capital markets. Increased interest rates may also increase the risk that the counterparties to our swap

59

Table of Contents

Index to Financial Statements

agreements will default on their obligations, which could further increase our interest expense. If we cannot obtain capital from third party sources, we may not be
able to acquire or develop properties when strategic opportunities exist, satisfy our debt service obligations or pay the cash dividends to Digital Realty Trust, Inc.’s
stockholders necessary to maintain its qualification as a REIT.

Demand for data center space . Our portfolio consists primarily of data centers. A decrease in the demand for, or increase in supply of, data center space,
Internet gateway facilities or other technology-related real estate would have a greater adverse effect on our business and financial condition than if we owned a
portfolio with a more diversified customer base or less specialized use. We have invested in building out additional inventory primarily in what we anticipate will
be our active major metropolitan areas prior to having executed leases with respect to this space. We believe that demand in key metropolitan areas such as
Northern Virginia, Dallas and Chicago is largely in line with supply. We also continue to see strong demand in other key metropolitan areas across our portfolio.
However, until this inventory is leased up, which will depend on a number of factors, including available data center space in these metropolitan areas, our return
on invested capital is negatively impacted. Our development activities make us particularly susceptible to general economic slowdowns, including recessions and
the other circumstances described above under “Global market and economic conditions,” as well as adverse developments in the corporate data center, Internet
and data communications and broader technology industries. Any such slowdown or adverse development could lead to reduced corporate IT spending or reduced
demand for data center space. Reduced demand could also result from business relocations, including to metropolitan areas that we do not currently serve. Changes
in industry practice or in technology, such as virtualization technology, more efficient computing or networking devices, or devices that require higher power
densities than today’s devices, could also reduce demand for the physical data center space we provide or make the tenant improvements in our facilities obsolete
or in need of significant upgrades to remain viable. In addition, the development of new technologies, the adoption of new industry standards or other factors could
render many of our customers’ current products and services obsolete or unmarketable and contribute to a downturn in their businesses, thereby increasing the
likelihood that they default under their leases, become insolvent or file for bankruptcy. In addition, demand for data center space, or the rates at which we lease
space, may be adversely impacted either across our portfolio or in specific metropolitan areas as a result of an increase in the number of competitors, or the amount
of space being offered in our metropolitan areas and other metropolitan areas by our competitors.

Critical Accounting Policies

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been

prepared in accordance with U.S. generally accepted accounting principles, or GAAP. The preparation of these financial statements in conformity with GAAP
requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported
amount of revenues and expenses in the reporting period. Our actual results may differ from these estimates. We have provided a summary of our significant
accounting policies in Item 8, Note 2 “Summary of Significant Accounting Policies” in the Notes to Consolidated Financial Statements. We describe below those
accounting policies that require material subjective or complex judgments and that have the most significant impact on our financial condition and consolidated
results of operations. Our management evaluates these estimates on an ongoing basis, based upon information currently available and on various assumptions
management believes are reasonable as of the date on the front cover of this report.

Investments in Real Estate

Acquisition of real estate. The price that we pay to acquire a property is impacted by many factors including the condition of the property and improvements,

the occupancy of the building, the term and rate of in-place leases, the creditworthiness of the customers, favorable or unfavorable financing, above- or below-
market ground leases and numerous other factors.

Accordingly, we are required to make subjective assessments to allocate the purchase price paid to acquire investments in real estate among the identifiable
assets including intangibles and liabilities assumed based on our estimate of the fair value of such assets and liabilities. This includes determining the value of the
property and improvements, land, ground leases, if any, and tenant improvements. Additionally, we evaluate the value of in-place leases on occupancy and market
rent, the value of the tenant relationships, the value (or negative value) of above (or below) market leases, any debt or deferred taxes assumed from the seller or
loans made by the seller to us and any building leases assumed from the seller. Each of these estimates requires a great deal of judgment and some of the estimates
involve complex calculations. These allocation assessments have a direct impact on our results of operations. For example, if we were to allocate more value to
land, there would be no depreciation with respect to such amount. If we were to allocate more value to the property as opposed to allocating to the value of in-place
tenant leases, this amount would be recognized as an expense over a much longer period of time. This potential effect occurs because the amounts allocated to
property are depreciated over the estimated lives of the property whereas amounts allocated to in-place tenant leases are amortized over the estimated term
(including renewal and extension assumptions) of the leases. Additionally,

60

Table of Contents

Index to Financial Statements

the amortization of the value (or negative value) assigned to above (or below) market rate leases is recorded as an adjustment to rental revenue as compared to
amortization of the value of in-place tenant leases and tenant relationships, which is included in depreciation and amortization in our consolidated income
statements.

From time to time, we will receive offers from third parties to purchase our properties, either solicited or unsolicited. For those offers that we accept, the

prospective buyers will usually require a due diligence period before consummation of the transactions. It is not unusual for matters to arise that result in the
withdrawal or rejection of the offer during this process. We classify real estate as “held for sale” when all criteria under the GAAP guidance have been met.

Useful lives of assets. We are required to make subjective assessments as to the useful lives of our properties for purposes of determining the amount of

depreciation to record on an annual basis with respect to our investments in real estate. These assessments have a direct impact on our net income because if we
were to shorten the expected useful lives of our investments in real estate we would depreciate such investments over fewer years, resulting in more depreciation
expense and lower net income on an annual basis.

Asset impairment evaluation. We review each of our properties for indicators that its carrying amount may not be recoverable. Examples of such indicators

may include a significant decrease in the market price of the property, a change in the expected holding period for the property, a significant adverse change in how
the property is being used or expected to be used based on the underwriting at the time of acquisition, an accumulation of costs significantly in excess of the
amount originally expected for the acquisition or development of the property, or a history of operating or cash flow losses of the property. When such impairment
indicators exist, we review an estimate of the future undiscounted net cash flows (excluding interest charges) expected to result from the real estate investment’s
use and eventual disposition and compare that estimate to the carrying value of the property. We consider factors such as future operating income, trends and
prospects, as well as the effects of leasing demand, competition and other factors. If our future undiscounted net cash flow evaluation indicates that we are unable
to recover the carrying value of a real estate investment, an impairment loss is recorded to the extent that the carrying value exceeds the estimated fair value of the
property. These losses have a direct impact on our net income because recording an impairment loss results in an immediate negative adjustment to net income.
The evaluation of anticipated cash flows is highly subjective and is based in part on assumptions regarding future occupancy, rental rates and capital requirements
that could differ materially from actual results in future periods. Since cash flows on properties considered to be long-lived assets to be held and used are
considered on an undiscounted basis to determine whether the carrying value of a property is recoverable, our strategy of holding properties over the long-term
directly decreases the likelihood of their carrying values not being recoverable and therefore requiring the recording of an impairment loss. If our strategy changes
or market conditions otherwise dictate an earlier sale date, an impairment loss may be recognized and such loss could be material. If we determine that the asset
fails the recoverability test, the affected assets must be reduced to their fair value.

We generally estimate the fair value of rental properties utilizing a discounted cash flow analysis that includes projections of future revenues, expenses and

capital improvement costs that a market participant would use based on the highest and best use of the asset, which is similar to the income approach that is
commonly utilized by appraisers. In certain cases, we may supplement this analysis by obtaining outside broker opinions of value.

Goodwill impairment evaluation. We perform an annual impairment test for goodwill and between annual tests, we evaluate goodwill for impairment
whenever events or changes in circumstances occur that would more likely than not reduce the fair value of a reporting unit below its carrying value.  In our
impairment tests of goodwill, we first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its
carrying value.  If based on this assessment, we determine that the fair value of the reporting unit is not less than its carrying value, then performing the additional
two-step impairment test is unnecessary. If our qualitative assessment indicates that goodwill impairment is more likely than not, we perform a two-step
impairment test. We test goodwill for impairment under the two-step impairment test by first comparing the book value of net assets including goodwill to the fair
value of the reporting unit. If the fair value is determined to be less than the book value of the net assets, including goodwill, a second step is performed to compute
the amount of impairment as the difference between the implied fair value of goodwill and its carrying value. We estimate the fair value of the reporting units
using discounted cash flows. If the carrying value of goodwill exceeds its implied fair value, an impairment charge is recognized. 

61

Table of Contents

Index to Financial Statements

Revenue Recognition

Rental revenue is recognized using the straight-line method over the terms of the customer leases. Deferred rents included in our consolidated balance sheets

represent the aggregate excess of rental revenue recognized to date on a straight-line basis versus the contractual rental payments under the terms of the leases.
Many of our leases contain provisions under which the customers reimburse us for a portion of property operating expenses and real estate taxes incurred by us.
However, we generally are not entitled to reimbursement of property operating expenses, other than utility expense, and real estate taxes under our leases for Turn-
Key Flex® facilities. Such reimbursements are recognized in the period that the expenses are incurred. Lease termination fees are recognized over the remaining
term of the lease, effective as of the date the lease modification is finalized, assuming collection is not considered doubtful. As discussed above, we recognize
amortization of the value of acquired above or below-market tenant leases as a reduction of rental revenue in the case of above-market leases or an increase to
rental revenue in the case of below-market leases. 

We must make subjective estimates as to when our revenue is earned and the collectability of our accounts receivable related to minimum rent, deferred rent,

expense reimbursements, lease termination fees and other income. We specifically analyze accounts receivable and historical bad debts, customer concentrations,
customer creditworthiness and current economic trends when evaluating the adequacy of the allowance for bad debts. These estimates have a direct impact on our
net revenue because a higher bad debt allowance would result in lower net revenue, and recognizing rental revenue as earned in one period versus another would
result in higher or lower net revenue for a particular period.

Share-Based Awards

We recognize compensation expense related to share-based awards. We generally amortize this compensation expense over the vesting period of the award.

The calculation of the fair value of share-based awards is subjective and requires several assumptions over such items as expected stock volatility, dividend
payments and future company results. These assumptions have a direct impact on our net income because a higher share-based awards amount would result in
lower net income for a particular period.

Recently Issued Accounting Pronouncements

Please refer to Item 8, Note 2(z). “Recent Accounting Pronouncements” in the Notes to the Consolidated Financial Statements.

62

Table of Contents

Index to Financial Statements

Results of Operations

The discussion below relates to our financial condition and results of operations for the years ended December 31, 2017 , 2016 and 2015 . A summary of our

operating results from continuing operations for the years ended December 31, 2017 , 2016 and 2015 was as follows (in thousands).

Income Statement Data:

Total operating revenues

Total operating expenses

Operating income

Other expenses, net

Net income

Year Ended December 31,

2017

2016

2015

$

$

2,457,928   $

2,142,213   $

(2,006,633)  

(1,644,927)  

451,295  

(195,028)  

497,286  

(65,434)  

256,267   $

431,852   $

1,763,336

(1,361,425)

401,911

(100,320)

301,591

Our portfolio of properties has experienced consistent and significant growth since the first property acquisition in January 2002. As a result of this growth,
our period-to-period comparison of our financial performance focuses on the impact on our revenues and expenses on a stabilized portfolio basis. Our stabilized
portfolio includes properties owned as of December 31, 2015 with less than 5% of total rentable square feet under development and excludes properties that were
undergoing, or were expected to undergo, development activities in 2016 - 2017 and properties sold or contributed to joint ventures. Our pre-stabilized pool
includes the results of the operating properties acquired below, newly delivered properties that were previously under development and properties acquired as part
of the DFT Merger in September 2017 and the European Portfolio Acquisition in July 2016.

In September 2017, as part of the DFT Merger, we acquired 15 data centers, 14 of which are located in the United States and one is located in Canada. In

addition, we acquired the following real estate properties during the year ended  December 31, 2017 :

Property Type

Land Parcels (1)

Data Centers

Technology Manufacturing

Amount 
(in millions) (2)

$

$

55.3

346.2

14.3

415.8

(1) Represents currently vacant land which is not included in our operating property count.
(2) Purchase price in U.S. dollars and excludes capitalized closing costs.

2017
Dispositions

Location

8025 North Interstate 35
44874 Moran Road (1)

1 Solutions Parkway

Metro Area

Austin

Date Sold

August 10, 2017

  Northern Virginia  

October 6, 2017

St. Louis

November 28, 2017

Gross Proceeds
(in millions)

Gain on Sale
(in millions)

$

$

20.2  

$

34.0  

37.1  

91.3  

$

9.6

15.6

14.7

39.9

(1) The property was held in a consolidated joint venture in which the Company owned a 75% interest. The Company recognized a gain on the sale of

approximately $11.7 million , net of noncontrolling interests.

None of the Company's property sales to date represented a significant component or significant shift in strategy that would require discontinued operations

presentation.

63

 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Comparison of the Year Ended December 31, 2017 to the Year Ended December 31, 2016 and Comparison of the Year Ended December 31, 2016 to the Year

Ended December 31, 2015

Portfolio

As of December 31, 2017 , our portfolio consisted of 205 data centers, including seven held-for-sale data centers and 18 data centers held as investments in

unconsolidated joint ventures, with an aggregate of approximately 32.1 million rentable square feet, including 2.7 million square feet of space under active
development and 1.7 million square feet of space held for development, compared to a portfolio consisting of 187 data centers, including three held-for-sale data
centers and 15 data centers held as investments in unconsolidated joint ventures, with an aggregate of approximately 26.1 million rentable square feet, including
2.0 million square feet of space under active development and 1.1 million square feet of space held for development as of December 31, 2016 , and compared to a
portfolio consisting of 173 data centers, including 15 data centers held as investments in unconsolidated joint ventures, with an aggregate of 25.6 million  rentable
square feet, including 1.3 million square feet of space under active development and 1.3 million square feet of space held for development as of December 31,
2015 .

Revenues

Total operating revenues for the years ended December 31, 2017 , 2016 and 2015 were as follows (in thousands):

Year Ended December 31,

Change

Percentage Change

Rental

Tenant reimbursements

Interconnection and other

Fee income

Other

2017
1,774,649   $

2016
1,542,511   $

$

1,354,986   $

232,138   $

187,525  

2015

2017 vs 2016

2016 vs 2015

2017 vs 2016

2016 vs 2015

440,224  

235,652  

6,372  

1,031  

355,903  

204,317  

6,285  

33,197  

359,875  

40,759  

6,638  

1,078  

84,321  

31,335  

87  

(32,166)  

(3,972)  

163,558  

(353)  

32,119  

15.0 %  

23.7 %  

15.3 %  

1.4 %  

13.8 %

(1.1)%

401.3 %

(5.3)%

(96.9)%  

2,979.5 %

Total operating revenues

$

2,457,928   $

2,142,213   $

1,763,336   $

315,715   $

378,877  

14.7 %  

21.5 %

The following tables show revenues for the years ended  December 31, 2017 ,  2016 and 2015 for stabilized properties and pre-stabilized properties and other

(all other properties) (in thousands). Stabilized results for the year ended December 31, 2015 are shown prior to Telx-related eliminations that were completed in
arriving at our consolidated financial results. In an effort to make 2016 and 2015 stabilized results comparable, total operating revenues for the year
ended December 31, 2016 are shown prior to Telx-related eliminations totaling $62.1 million.  Revenue totals for pre-stabilized and other include results from
properties that have not yet met the definition of stabilized and properties that are classified as held for sale or were sold during the period, and the net Telx-related
elimination of $62.1 million for the year ended December 31, 2016.

Rental

Tenant reimbursements

Interconnection and other

Total operating revenues

Stabilized 
Year Ended December 31,

Pre-Stabilized and Other 
Year Ended December 31,

2017
980,994   $

2016
974,918   $

$

217,068  

200,693  

218,644  

179,462  

Change

6,076   $

(1,576)  

21,231  

2017
793,655   $

2016
567,593   $

223,156  

34,959  

137,259  

24,855  

Change

226,062

85,897

10,104

$

1,398,755   $

1,373,024   $

25,731   $

1,051,770   $

729,707   $

322,063

Stabilized rental revenues increased $6.1 million , or 0.6% , for the year ended December 31, 2017 compared to the same period in 2016 primarily as a result

of new leasing at our properties during the year ended December 31, 2017 , the largest of which was for space at 1-11 Templar Road, 1725 Comstock Street and
200 Paul Avenue, offset by expiring leases at certain properties in the stabilized portfolio. Stabilized tenant reimbursement revenue decreased $1.6 million , or
0.7% , for the year ended  December 31, 2017  compared to the same period in 2016 primarily as a result of increased property tax reimbursements due to one-time
reductions in 2016 at two properties in the stabilized portfolio as well as lower utility reimbursements due to decreased usage and vacancies at certain properties.
Stabilized interconnection and other revenues increased $21.2 million , or 11.8% , for the year ended  December 31, 2017  compared to the same period
in 2016 primarily as a result of increased demand and product sales during the year ended  December 31, 2017  in the stabilized portfolio.

Pre-stabilized and other revenue increases during the year ended December 31, 2017 compared to the same period in 2016 were primarily a result of the

properties acquired in the DFT Merger, which contributed approximately $115.4 million and $62.3 million to the rental revenue and tenant reimbursement
increases, respectively. In addition, the European Portfolio

64

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Acquisition contributed approximately $44.9 million and $7.0 million to the rental revenue and interconnection revenue increases, respectively. The remainder of
the increases was related to new leases at our properties during the year ended December 31, 2017 , primarily leases of completed development space, the largest
of which were for space at 44100 Digital Loudoun Plaza, 9355 Grand Avenue, 1210 Integrity Drive, 907 Security Row and 43780 Digital Loudoun Plaza and
offset partially by a decrease in revenues as a result of properties sold during the year ended December 31, 2017 .

Rental

Tenant reimbursements

Interconnection and other

Total operating revenues

Stabilized 
Year Ended December 31,

Pre-Stabilized and Other 
Year Ended December 31,

2016

2015

Change

2016

2015

Change

819,848   $

820,862   $

(1,014)   $

722,663   $

534,124   $

188,539

213,117  

6,509  

214,079  

5,257  

(962)  

1,252  

142,786  

197,808  

145,796  

35,502  

1,039,474   $

1,040,198   $

(724)   $

1,063,257   $

715,422   $

(3,010)

162,306

347,835

$

$

Stabilized rental revenues and tenant reimbursement revenues remained flat for the year ended December 31, 2016 compared to the same period in 2015

primarily as a result of new leasing at our properties during the year ended December 31, 2016, the largest of which were for space at 2121 South Price Road and
2045 & 2055 Lafayette Street, offset by the British pound sterling and Euro weakening against the U.S. dollar.

Pre-stabilized and other revenue increases during the year ended December 31, 2016 were primarily a result of the Telx Acquisition and the European
Portfolio Acquisition, which contributed approximately $209.0 million and $157.8 million to rental revenue and interconnection revenue, respectively, along with
new leases at our properties during the year ended December 31, 2016, which were primarily leases of completed development space, the largest of which were for
space at 44060 Digital Loudoun Plaza, 907 Security Row, 29A International Business Park and 9355 Grand Avenue, offset by a decrease in revenues as a result of
properties sold during the year ended December 31, 2016.

Fee Income

Occasionally, customers engage the Company for certain services. The nature of these services historically involves property management, construction
management, and assistance with financing. The proper revenue recognition of these services can be different, depending on whether the arrangements are service
revenue or contractor type revenue. Service revenues are typically recognized on an equal monthly basis based on the minimum fee to be earned. The monthly
amounts could be adjusted depending on if certain performance milestones are met.

Fee income also includes management fees. These fees arise from contractual agreements with entities in which we have a noncontrolling interest. The
management fees are recognized as earned under the respective agreements. Management and other fee income related to partially owned entities are recognized to
the extent attributable to the unaffiliated interest.

Other

During the year ended December 31, 2016, we recognized a non-cash gain on lease termination of approximately $29.2 million, as one of our customers, as

part of a lease termination, conveyed substantially all of its colocation and turn-key improvements to the Company.

65

 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Operating Expenses and Interest Expense

Operating expenses and interest expense during the years ended December 31, 2017 , 2016 and 2015 were as follows (in thousands):

Year Ended December 31,

Change

Percentage Change

2017

2016

2015

2017 vs 2016

2016 vs 2015

2017 vs 2016

2016 vs 2015

Rental property operating and
maintenance

Property taxes

Insurance

Change in fair value of contingent
consideration

Depreciation and amortization

General and administrative

Transaction and integration expenses

Impairment of investments in real
estate

Other

Total operating expenses

Interest expense

$

759,616   $

660,177   $

549,885   $

99,439   $

110,292  

124,014  

102,497  

10,981  

9,492  

92,588  

8,809  

—  

842,464  

161,441  

76,048  

28,992  

3,077  

—  

699,324  

152,733  

20,491  

(44,276)  

570,527  

105,549  

17,400  

—  

213  

—  

60,943  

21,517  

1,489  

—  

143,140  

8,708  

55,557  

28,992  

2,864  

$

$

2,006,633   $ 1,644,927   $ 1,361,425   $

361,706   $

258,642   $

236,480   $

201,435   $

22,162   $

9,909  

683  

44,276  

128,797  

47,184  

3,091  

—  

(60,730)  

283,502  

35,045  

15.1%  

21.0%  

15.7%  

—  

20.5%  

5.7%  

271.1%  

—  

1,344.6%  

22.0%  

9.4%  

20.1 %

10.7 %

7.8 %

(100.0%)

22.6 %

44.7 %

17.8 %

—

(99.7)%

20.8 %

17.4 %

The following tables show expenses for the years ended December 31, 2017 , 2016 and 2015 for stabilized properties and pre-stabilized properties and other
(all other properties) (in thousands). Stabilized results for the year ended December 31, 2015 are shown prior to Telx-related eliminations that were completed in
arriving at our consolidated financial results. In an effort to make 2016 and 2015 stabilized results comparable, total operating expenses for the year
ended December 31, 2016 are shown prior to Telx-related eliminations totaling $3.6 million.  Expense totals for pre-stabilized and other include results from
properties that have not yet met the definition of stabilized and properties that are classified as held for sale or were sold during the period, and the net Telx-related
elimination of $3.6 million for the year ended December 31, 2016.

Rental property operating and maintenance

Property taxes

Insurance

Stabilized 
Year Ended December 31,

Pre-Stabilized and Other 
Year Ended December 31,

2017
409,614   $

2016
412,358   $

$

69,363  

7,663  

67,929  

7,165  

Change

(2,744)   $

1,434  

498  

2017
350,002   $

2016
247,819   $

54,651  

3,318  

34,568  

2,327  

Change

102,183

20,083

991

Stabilized rental property operating and maintenance expenses decreased by approximately $2.7 million , or 0.7% , for the year ended December 31, 2017

compared to the same period in 2016 primarily as a result of reduced labor costs and cost containment measures across the portfolio.

Stabilized property taxes increased by approximately $1.4 million , or 2.1% , for the year ended December 31, 2017 compared to the same period in 2016 ,

primarily as a result of increased assessed taxes at one of our properties in Illinois.

Pre-stabilized and other rental property operating and maintenance expenses increased by approximately $102.2 million for the year ended December 31,
2017 compared to the same period in 2016 , primarily as a result of the properties acquired in the DFT Merger, which contributed approximately $51.2 million
along with the European Portfolio Acquisition, which contributed approximately $20.4 million to the increase, and leasing of completed and delivered inventory.

Pre-stabilized and other property tax expense increased approximately $20.1 million for the year ended December 31, 2017 compared to the same period in
2016 , primarily due to a tax refund received in 2016 at one property in Singapore related to a change in assessed value along with the properties acquired in the
DFT Merger, which contributed approximately $5.3 million.

66

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Stabilized 
Year Ended December 31,

Pre-Stabilized and Other 
Year Ended December 31,

Rental property operating and maintenance

Property taxes

Insurance

2016
294,854   $

2015
304,716   $

$

61,876  

6,603  

54,930  

6,699  

Change

(9,862)   $

6,946  

(96)  

2016
365,323   $

2015
245,169   $

Change

120,154

40,621  

2,889  

37,658  

2,110  

2,963

779

Stabilized rental property operating and maintenance expenses decreased by approximately $9.9 million, or 3.2% , for the year ended December 31, 2016

compared to the same period in 2015 primarily as a result of lower utility expense due to decreased usage and vacancies at certain properties and operating
efficiencies realized from the Telx Acquisition.

Stabilized property taxes increased by approximately $6.9 million, or 12.6% , for the year ended December 31, 2016 compared to the same period in 2015,
primarily as a result of an additional property tax re-assessment recorded in 2016 at four properties within the stabilized pool and a successful appeal in 2015 for
taxes at one property in Texas within the stabilized pool.

Pre-stabilized and other rental property operating and maintenance expenses increased by approximately $120.2 million for the year ended December 31,
2016 compared to the same period in 2015, primarily as a result of the Telx Acquisition and European Portfolio Acquisition, which contributed approximately
$114.3 million to the increase.

Pre-stabilized and other property tax expense increased approximately $3.0 million for the year ended December 31, 2016 compared to the same period in

2015, primarily as a result of reassessed value increases at five properties within the pre-stabilized pool offset by the tax refund at one property in Singapore.

Change in Fair Value of Contingent Consideration

The change in fair value of contingent consideration recorded for the year ended December 31, 2015 was primarily as a result of reducing the fair value
related to the Sentrum acquisition by approximately $45.9 million during 2015. The adjustment was the result of an evaluation by management that no additional
leases would be executed for vacant space by July 11, 2015, the contingency expiration date.

Depreciation and Amortization

Depreciation and amortization expense increased by approximately $143.1 million for the year ended December 31, 2017 compared to the same period in

2016 , principally because of the properties acquired in the DFT Merger, which contributed approximately $116.2 million to the increase along with the European
Portfolio Acquisition, which contributed approximately $23.8 million, offset by an impairment charge on the Telx tradename of approximately $6.1 million
recorded in the quarter ended June 30, 2016 along with fully depreciated building assets during the year ended  December 31, 2017 .

Depreciation and amortization expense increased by approximately $128.8 million for the year ended December 31, 2016, compared to the same period in

2015, principally because of the Telx Acquisition and European Portfolio Acquisition, which contributed approximately $130.3 million to the increase, along with
depreciation on development projects that were placed into service in late 2015 and during 2016, offset by properties sold during 2015 and 2016.

General and Administrative

General and administrative expenses increased by approximately $8.7 million for the year ended December 31, 2017 compared to the same period in 2016 ,

primarily due to an increase in headcount from 2016 to 2017 to support the Company's continued growth.

General and administrative expenses increased by approximately $47.2 million for the year ended December 31, 2016 compared to the same period in 2015,

primarily due to the Telx Acquisition and European Portfolio Acquisition along with the growth of our Company, with an increase in headcount from 2015 to
2016, resulting in additional compensation expense, along with higher professional fees and marketing expenses.

67

 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Transactions and Integration Expense

Transactions and integration expense increased by approximately $55.6 million for the year ended December 31, 2017 compared to the same period in 2016 ,

principally due to $43.0 million of transaction expenses for the year ended  December 31, 2017 related to the DFT Merger along with integration expenses
attributable to recently completed acquisitions.

Transactions and integration expense increased by approximately $3.1 million for the year ended December 31, 2016 compared to the same period in 2015,
principally because of transaction expenses attributable to the European Portfolio Acquisition, which was acquired in July 2016, offset by expenses attributable to
the Telx Acquisition, which was acquired in October 2015.

Other

Other expense for the year ended December 31, 2015 was due to the write off of straight-line rent receivables related to the Telx Acquisition ($75.3 million),

which was partially offset by a gain related to the settlement of pre-existing tenant relationships with Telx ($14.4 million).

Interest Expense

Interest expense increased by approximately $22.2 million for the year ended December 31, 2017 compared to the same period in 2016 , primarily due to the

issuance of the 2019 Notes in May 2017, the issuance of the 2.750% notes due 2024 and the 3.300% notes due 2029 in July 2017 and the issuance of the
2.750% notes due 2023 and the 3.700% notes due 2027 in August 2017.

Interest expense increased by approximately $35.0 million for the year ended December 31, 2016, as compared to the same period in 2015, primarily as a

result of the issuance of the 3.950% notes due 2022 in June 2015, the issuance of the 3.400% notes due 2020 and 4.750% notes due 2025 in October 2015 and the
issuance of the 2.625% notes due 2024 in April 2016, offset by lower interest expense on secured debt due to the paydown of several mortgage loans in 2015 and
2016.

Impairment of Investments in Real Estate

We evaluated the carrying value of the properties identified as held for sale to ensure the carrying value was recoverable in light of a potentially shorter
holding period. As a result of our evaluation, during the year ended  December 31, 2017 , we recognized  $29.0 million  of impairment charges on  three  properties
located in the United States to reduce the carrying values to the estimated fair values less costs to sell. The fair values of the  three  properties were based on
comparable sales price data. There were  no  impairment charges for the years ended December 31, 2016 and 2015.

Gain on Sale of Properties

During the year ended  December 31, 2017 , we recognized a gain on sale of properties of $40.4 million primarily related to the disposition of (i) 8025 North

Interstate 35, which sold for $20.2 million in August 2017, (ii) 44874 Moran Road, which sold for $34.0 million in October 2017, and (iii) 1 Solutions Parkway,
which sold for $37.1 million in November 2017.

During the year ended December 31, 2016, we recognized a gain on sale of properties of $169.9 million primarily related to the disposition of (i) 47700 Kato

Road and 1055 Page Avenue, which sold for $37.5 million in January 2016, (ii) a four-property portfolio composed of 210 N. Tucker Boulevard, 900 Walnut
Street, 251 Exchange Place and 1807 Michael Faraday Court, which sold for $114.5 million in the aggregate in July 2016, and (iii) 114 Ambroise Croizat, which
sold for $212.0 million in August 2016.

During the year ended December 31, 2015, we recognized a gain on sale of properties of $94.6 million primarily related to the disposition of (i) 100
Quannapowitt, which sold for $31.1 million in February 2015, (ii) 3300 East Birch Street, which sold for $14.2 million in March 2015, (iii) 833 Chestnut Street,
which sold for $160.8 million in April 2015, and (iv) 650 Randolph Road, which sold for $9.2 million in December 2015.

Liquidity and Capital Resources of the Parent Company

68

Table of Contents

Index to Financial Statements

In this “Liquidity and Capital Resources of the Parent Company” section and in the “Liquidity and Capital Resources of the Operating Partnership” section

below, the term, our “Parent Company”, refers to Digital Realty Trust, Inc. on an unconsolidated basis, excluding our Operating Partnership.

Analysis of Liquidity and Capital Resources

Our Parent Company’s business is operated primarily through our Operating Partnership, of which our Parent Company is the sole general partner and which
it consolidates for financial reporting purposes. Because our Parent Company operates on a consolidated basis with our Operating Partnership, the section entitled
“Liquidity and Capital Resources of the Operating Partnership” should be read in conjunction with this section to understand the liquidity and capital resources of
our Parent Company on a consolidated basis and how our Company is operated as a whole.

Our Parent Company issues public equity from time to time, but generally does not otherwise generate any capital itself or conduct any business itself, other

than incurring certain expenses in operating as a public company which are fully reimbursed by the Operating Partnership. Our Parent Company itself does not
hold any indebtedness other than guarantees of the indebtedness of our Operating Partnership and certain of its subsidiaries, and its only material asset is its
ownership of partnership interests of our Operating Partnership. Therefore, the consolidated assets and liabilities and the consolidated revenues and expenses of our
Parent Company and our Operating Partnership are the same on their respective financial statements, except for immaterial differences related to cash, other assets
and accrued liabilities that arise from public company expenses paid by our Parent Company. However, all debt is held directly or indirectly at the Operating
Partnership level. Our Parent Company’s principal funding requirement is the payment of dividends on its common and preferred stock. Our Parent Company’s
principal source of funding for its dividend payments is distributions it receives from our Operating Partnership.

.

As the sole general partner of our Operating Partnership, our Parent Company has the full, exclusive and complete responsibility for our Operating
Partnership’s day-to-day management and control. Our Parent Company causes our Operating Partnership to distribute such portion of its available cash as our
Parent Company may in its discretion determine, in the manner provided in our Operating Partnership’s partnership agreement. Our Parent Company receives
proceeds from its equity issuances from time to time, but is generally required by our Operating Partnership’s partnership agreement to contribute the proceeds
from its equity issuances to our Operating Partnership in exchange for partnership units of our Operating Partnership.

Our Parent Company is a well-known seasoned issuer with an effective shelf registration statement filed on September 22, 2017, which allows our Parent

Company to register an unspecified amount of various classes of equity securities. As circumstances warrant, our Parent Company may issue equity from time to
time on an opportunistic basis, dependent upon market conditions and available pricing. Any proceeds from such equity issuances would be generally contributed
to our Operating Partnership in exchange for additional equity interests in our Operating Partnership. Our Operating Partnership may use the proceeds to acquire
additional properties, to fund development opportunities and for general working capital purposes, including potentially for the repurchase, redemption or
retirement of outstanding debt or equity securities.

The liquidity of our Parent Company is dependent on our Operating Partnership’s ability to make sufficient distributions to our Parent Company. The primary
cash requirement of our Parent Company is its payment of dividends to its stockholders. Our Parent Company also guarantees our Operating Partnership’s, as well
as certain of its subsidiaries’ and affiliates’, unsecured debt. If our Operating Partnership or such subsidiaries fail to fulfill their debt requirements, which trigger
Parent Company guarantee obligations, then our Parent Company will be required to fulfill its cash payment commitments under such guarantees. However, our
Parent Company’s only material asset is its investment in our Operating Partnership.

We believe our Operating Partnership’s sources of working capital, specifically its cash flow from operations, and funds available under its global revolving
credit facility are adequate for it to make its distribution payments to our Parent Company and, in turn, for our Parent Company to make its dividend payments to
its stockholders. However, we cannot assure you that our Operating Partnership’s sources of capital will continue to be available at all or in amounts sufficient to
meet its needs, including making distribution payments to our Parent Company. The lack of availability of capital could adversely affect our Operating
Partnership’s ability to pay its distributions to our Parent Company, which would in turn, adversely affect our Parent Company’s ability to pay cash dividends to its
stockholders.

Our Parent Company entered into equity distribution agreements in June 2011, which we refer to as the 2011 Equity Distribution Agreements, with each of

Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., Credit Suisse Securities (USA) LLC, Deutsche Bank Securities Inc. and
Morgan Stanley & Co. LLC, or the Agents, under which it can issue and sell shares of its common stock having an aggregate offering price of up to $400.0
million from time to time through, at

69

Table of Contents

Index to Financial Statements

its discretion, any of the Agents as its sales agents. The sales of common stock made under the 2011 Equity Distribution Agreements will be made in “at the
market” offerings as defined in Rule 415 of the Securities Act. Cumulatively through December 31, 2017, our Parent Company had generated net proceeds of
approximately $342.7 million from the issuance of approximately 5.7 million common shares under the 2011 Equity Distribution Agreements at an average price
of $60.35 per share after payment of approximately $3.5 million of commissions to the sales agents and before offering expenses. No sales were made under the
program during the years ended December 31, 2017, 2016 and 2015. As of December 31, 2017, shares of common stock having an aggregate offering price
of $53.8 million remained available for offer and sale under the program.

DFT Merger Financing

On July 21, 2017, Digital Stout Holding, LLC, a wholly owned subsidiary of Digital Realty Trust, L.P., issued and sold £250 million aggregate principal
amount of 2.750% Guaranteed Notes due 2024, or the 2.750% 2024 Notes, and £350 million aggregate principal amount of 3.300% Guaranteed Notes due 2029, or
the 2029 Notes and, together with the 2.750% 2024 Notes, the GBP Notes. The GBP Notes are senior unsecured obligations of Digital Stout Holding, LLC and are
fully and unconditionally guaranteed by Digital Realty Trust, Inc. and Digital Realty Trust, L.P. Net proceeds from the offering were approximately £592.3
million after deducting managers’ discounts and estimated offering expenses.

On August 7, 2017, the Operating Partnership issued and sold $350 million aggregate principal amount of 2.750% notes due 2023, or the 2.750% 2023
Notes, and $1.0 billion aggregate principal amount of 3.700% notes due 2027, or the 2027 Notes and, together with the 2.750% 2023 Notes, the USD Notes. The
USD Notes are general unsecured senior obligations of the Operating Partnership, rank equally in right of payment with all other senior unsecured indebtedness of
the Operating Partnership and are fully and unconditionally guaranteed by Digital Realty Trust, Inc. Net proceeds from the offering were approximately $1.3
billion after deducting managers’ discounts and estimated offering expenses.

On August 7, 2017, our Parent Company issued and sold 8,000,000 shares of its 5.250% series J cumulative redeemable preferred stock, or the series J

preferred stock, in an underwritten public offering for net proceeds of approximately $193.5 million.

We used the net proceeds from the offerings of the 2.750% 2024 Notes, the USD Notes and the series J preferred stock to fund a portion of the repayment,

redemption and/or discharge of DFT debt and the payment of certain transaction fees and expenses incurred in connection with the DFT Merger.

Future Uses of Cash

Our Parent Company may from time to time seek to retire, redeem or repurchase its equity or the debt securities of our Operating Partnership or its
subsidiaries through cash purchases and/or exchanges for equity securities in open market purchases, privately negotiated transactions or otherwise. Such
repurchases, redemptions or exchanges, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions or other factors.
The amounts involved may be material.

We are also subject to the commitments discussed below under “Dividends and Distributions.”

Dividends and Distributions

Our Parent Company is required to distribute 90% of its taxable income (excluding capital gains) on an annual basis in order for it to continue to qualify as a
REIT for federal income tax purposes. Accordingly, our Parent Company intends to make, but is not contractually bound to make, regular quarterly distributions to
its common stockholders from cash flow from our Operating Partnership’s operating activities. While historically our Parent Company has satisfied this
distribution requirement by making cash distributions to its stockholders, it may choose to satisfy this requirement by making distributions of cash or other
property. All such distributions are at the discretion of our Parent Company’s board of directors. Our Parent Company considers market factors and our Operating
Partnership’s performance in addition to REIT requirements in determining distribution levels. Our Parent Company has distributed at least 100% of its taxable
income annually since inception to minimize corporate level federal income taxes. Amounts accumulated for distribution to stockholders are invested primarily in
interest-bearing accounts and short-term interest-bearing securities, which are consistent with our intention to maintain our Parent Company’s status as a REIT.

As a result of this distribution requirement, our Operating Partnership cannot rely on retained earnings to fund its on-going operations to the same extent that
other companies whose parent companies are not REITs can. Our Parent Company may need to continue to raise capital in the debt and equity markets to fund our
Operating Partnership’s working capital needs, as well as potential developments at new or existing properties, acquisitions or investments in existing or newly
created joint ventures. In addition, our Parent Company may be required to use borrowings under our global revolving credit facility, if necessary, to meet REIT
distribution requirements and maintain our Parent Company’s REIT status.

70

Table of Contents

Index to Financial Statements

Our Parent Company declared the following dividends on its common and preferred stock during the years ended December 31, 2017 , 2016 and 2015 (in

thousands, except per share amounts):

Series E
Preferred Stock  

Series F
Preferred Stock  

Series G
Preferred Stock  

Series H
Preferred Stock  

$

3,672

   $

3,672

3,672

6,730

6,730

6,730

   $

Series I
Preferred Stock  
—  
—  
—  

$

Series J
Preferred Stock  
—  
—  
—  

Common 
Stock

$

115,419

(1)  

115,458

(1)  

115,454

(1)  

Date dividend 
declared

Feb 25, 2015

May 12, 2015

Aug 11, 2015

Nov 12, 2015

  Dividend payable date
  March 31, 2015
  June 30, 2015
  September 30, 2015

December 31, 2015 for
Preferred Stock; 
   January 15, 2016 for
Common Stock

Feb 17, 2016

May 11, 2016

Aug 10, 2016

  March 31, 2016
  June 30, 2016
  September 30, 2016

December 30, 2016 for
Preferred Stock; 
   January 13, 2017 for
Common Stock

Nov 9, 2016

Mar 1, 2017

May 8, 2017

Aug 7, 2017

  March 31, 2017
  June 30, 2017
  September 29, 2017

December 29, 2017 for
Preferred Stock; 
   January 12, 2018 for
Common Stock

Nov 2, 2017

Annual rate of dividend per share

Series C
Preferred Stock  
—  
—  

  $

—   

—   

—   

—   
—  

—   

—   

—   

—   

—   

—   

3,963

(7)  

3,963

1.65625

  $
  $

  $
  $

  $

  $

$

$

$

$

$

$

$

$

$

$

$

$

5,031

5,031

5,031

5,031

20,124

5,031

5,031

— (4)  

—   

10,062

—  

—   
—  

3,023

3,023

3,023

3,023

12,092

3,023

3,023

3,023

3,023

12,092

3,023

— (6)  

—   

—   

—   

—   

$

3,023

1.75000

$

1.65625

3,672

6,730

5,600

(2)  

$

$

$

$

$

$

14,688

   $

26,920

   $

3,672

   $

6,730

   $

3,672

3,672

6,730

6,730

3,672

6,730

14,688

   $

26,920

   $

3,672

   $

6,730

   $

3,672

3,672

6,730

6,730

3,672

6,730

14,688

   $

26,920

   $

5,600

3,969

3,969

3,969

3,969

15,876

3,969

3,969

3,969

3,969

15,876

1.46875

  $

1.84375

  $

1.58750

$

$

$

$

$

$

$

$

$

$

—  
—  
—  
—  
—  

—  
—  
—  
—  
—  

124,417

(1)  

470,748

131,587

(3)  

131,607

(3)  

131,657

(3)  

141,882

(3)  

536,733

148,358

(5)  

150,814

(5)  

191,041

(5)  

4,200

(7)  

191,067

(5)  

4,200

$

681,280

1.31250

(1)
(2)
(3)
(4)

(5)
(6)

(7)

$ 3.400 annual rate of dividend per share.
Represents a pro rata dividend from and including the original issue date to and including December 31, 2015.
$3.520 annual rate of dividend per share.
Redeemed on September 15, 2016 for  $25.35972  per share, or a redemption price of  $25.00  per share, plus accrued and unpaid dividends up to but not
including the redemption date of approximately  $4.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $10.3 million  were recorded as a reduction to net income available to common stockholders.
$3.720 annual rate of dividend per share.
Redeemed on April 5, 2017 for  $25.01840  per share, or a redemption price of  $25.00  per share, plus accrued and unpaid dividends up to but not
including the redemption date of approximately  $0.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $6.3 million  were recorded as a reduction to net income available to common stockholders.
Represents a pro rata dividend from and including the original issue date to and including December 31, 2017.

Distributions out of our Parent Company’s current or accumulated earnings and profits are generally classified as ordinary income whereas distributions in

excess of our Parent Company’s current and accumulated earnings and profits, to the extent of a stockholder’s U.S. federal income tax basis in our Parent
Company’s stock, are generally classified as a return of capital. Distributions in excess of a stockholder’s U.S. federal income tax basis in our Parent Company’s
stock are generally characterized as capital gain. Cash provided by operating activities has been generally sufficient to fund distributions on an annual basis,
however, we may also need to utilize borrowings under the global revolving credit facility to fund distributions.

The expected tax treatment of distributions on our Parent Company’s common and preferred stock paid in 2017 is as follows: approximately 95% ordinary

income and 5% capital gain distribution. The tax treatment of distributions on our Parent Company’s common and preferred stock paid in 2016 was as follows:
approximately 98% ordinary income and 2% capital gain distribution.

71

 
 
  
  
 
  
  
 
 
 
  
  
  
  
 
 
  
 
  
  
 
   
  
  
 
  
 
  
 
 
  
  
 
 
 
 
  
  
  
 
 
 
  
  
  
 
 
   
  
  
 
  
  
 
 
  
 
 
 
  
  
 
 
 
  
  
 
 
   
  
  
 
 
  
 
   
   
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

The tax treatment of distributions on our Parent Company’s common and preferred stock paid in 2015 was as follows: approximately 94% ordinary income and 6%
capital gain distribution.

Liquidity and Capital Resources of the Operating Partnership

In this “Liquidity and Capital Resources of the Operating Partnership” section, the terms “we”, “our” and “us” refer to our Operating Partnership together

with its consolidated subsidiaries or our Operating Partnership and our Parent Company together with their consolidated subsidiaries, as the context requires.

Analysis of Liquidity and Capital Resources

Our Parent Company is our sole general partner and consolidates our results of operations for financial reporting purposes. Because we operate on a

consolidated basis with our Parent Company, the section entitled “Liquidity and Capital Resources of the Parent Company” should be read in conjunction with this
section to understand our liquidity and capital resources on a consolidated basis.

As of December 31, 2017 , we had $0.1 million of cash and cash equivalents, excluding $13.1 million of restricted cash. Restricted cash primarily consists of

contractual capital expenditures plus other deposits.

Our short-term liquidity requirements primarily consist of operating expenses, development costs and other expenditures associated with our properties,

distributions to our Parent Company in order for it to make dividend payments on its preferred stock, distributions to our Parent Company in order for it to make
dividend payments to its stockholders required to maintain its REIT status, distributions to the unitholders of common limited partnership interests in Digital
Realty Trust, L.P., capital expenditures, debt service on our loans and senior notes, and, potentially, acquisitions. We expect to meet our short-term liquidity
requirements through net cash provided by operations, restricted cash accounts established for certain future payments and by drawing upon our global revolving
credit facility.

We are committed to maintaining a conservative capital structure. We target a debt-to-adjusted EBITDA ratio at or less than 5.5x, fixed charge coverage of

greater than three times, and floating rate debt at less than 20% of total outstanding debt. In addition, we strive to maintain a well-laddered debt maturity schedule,
and we seek to maximize the menu of our available sources of capital, while minimizing the related cost.

On January 15, 2016, we refinanced our global revolving credit facility and entered into a global senior credit agreement for a $2.0 billion senior unsecured

revolving credit facility, which we refer to as the global revolving credit facility, that replaced the $2.0 billion revolving credit facility executed on August 15,
2013, as amended. The global revolving credit facility has an accordion feature that would enable us to increase the borrowing capacity of the credit facility to up
to $2.5 billion , subject to the receipt of lender commitments and other conditions precedent. The refinanced facility matures on January 15, 2020 , with two six -
month extension options available. The interest rate for borrowings under the global revolving credit facility equals the applicable index plus a margin which is
based on the credit ratings of our long-term debt and is currently 100 basis points. An annual facility fee on the total commitment amount of the facility, based on
the credit ratings of our long-term debt, currently 20 basis points, is payable quarterly. Funds may be drawn in U.S., Canadian, Singapore, Australian and Hong
Kong dollars, as well as Euro, British pound sterling and Japanese yen.  As of December 31, 2017 , borrowings under the global revolving credit facility bore
interest at an overall blended rate of 2.15% composed of 2.48% (U.S. dollars), 1.50% (British pound sterling), 0.62% (Euros), 2.20% (Hong Kong dollars), 0.96%
(Japanese yen) and 2.36% (Canadian dollars). The interest rates were based on 1-month LIBOR, 1-month GBP LIBOR, 1-month EURIBOR, 1-month HIBOR, 1-
month JPY LIBOR and 1-month CDOR, respectively, plus a margin of 1.00% . The facility also bore a base borrowing rate of  4.50%  (USD) which is based on
the U.S. Prime Rate. We have used and intend to use borrowings under the global revolving credit facility to acquire additional properties, fund development
opportunities and to provide for working capital and other corporate purposes. The global revolving credit facility contains various restrictive covenants, including
limitations on our ability to incur additional indebtedness, make certain investments or merge with another company, and requirements to maintain financial
coverage ratios, including with respect to unencumbered assets. In addition, the global revolving credit facility restricts Digital Realty Trust, Inc. from making
distributions to its stockholders, or redeeming or otherwise repurchasing shares of its capital stock, after the occurrence and during the continuance of an event of
default, except in limited circumstances including as necessary to enable Digital Realty Trust, Inc. to maintain its qualification as a REIT and to minimize the
payment of income or excise tax. As of December 31, 2017 , we were in compliance with all of such covenants. As of December 31, 2017 , we have capitalized
approximately $7.2 million of financing costs, net of accumulated amortization, related to the global revolving credit facility. As of December 31, 2017 ,
approximately $558.2 million was drawn under this facility and $22.8 million of letters of credit were issued, leaving approximately $1.5 billion available for use.

On January 15, 2016, we refinanced our senior unsecured multi-currency term loan facility and entered into a term loan agreement, which governs (i) a $1.25

billion 5 -year senior unsecured term loan, which we refer to as the 5-Year Term Loan, and (ii) a $300 million 7 -year senior unsecured term loan, which we refer
to as the 7-Year Term Loan. The 2016 term loan

72

Table of Contents

Index to Financial Statements

agreement replaced the $1.0 billion term loan agreement executed on April 16, 2012, as amended. The  5 -Year Term Loan matures on January 15, 2021 and the  7
-Year Term Loan matures on January 15, 2023. In addition, we have the ability from time to time to increase the aggregate size of lending under the 2016 term
loan agreement from $1.55 billion to up to $1.8 billion , subject to receipt of lender commitments and other conditions precedent. Interest rates are based on our
senior unsecured debt ratings and are currently 110 basis points and 155 basis points over the applicable index for floating rate advances for the 5-Year Term Loan
and the 7-Year Term Loan, respectively. Funds may be drawn in U.S., Canadian, Singapore, Australian and Hong Kong dollars, as well as Euro, British pound
sterling and Japanese yen. Based on exchange rates in effect at  December 31, 2017 , the balance outstanding is approximately  $1.4 billion , excluding deferred
financing costs. We have used borrowings under the term loan for acquisitions, repayment of indebtedness, development, working capital and general corporate
purposes. The covenants under the term loans are consistent with our global revolving credit facility and, as of  December 31, 2017 , we were in compliance with
all of such covenants. As of  December 31, 2017 , we have capitalized approximately $4.8 million of financing costs, net of accumulated amortization, related to
the 2016 unsecured term loans.

For a discussion of the potential impact of current global economic and market conditions on our liquidity and capital resources, see “—Factors Which May

Influence Future Results of Operations—Global market and economic conditions” above.

Our Parent Company commenced its at-the-market equity distribution program in June 2011, which is discussed under “Liquidity and Capital Resources of

the Parent Company” above. To date, our Parent Company has generated net proceeds of approximately $342.7 million from the issuance of approximately 5.7
million shares of common stock under the program at an average price of $60.35 per share after payment of approximately $3.5 million of commissions to the sales
agents and before offering expenses. The proceeds from the issuances were contributed to us in exchange for the issuance of approximately 5.7 million common
units to our Parent Company. No sales were made under the program during the years ended December 31, 2017 , 2016 and 2015. As of December 31, 2017 ,
shares of common stock having an aggregate offering price of $53.8 million remained available for offer and sale under the program.

The Operating Partnership sold the following real estate properties during the year ended December 31, 2017 :

Location

8025 North Interstate 35
44874 Moran Road (1)

1 Solutions Parkway

Metro Area

Austin

Date Sold

August 10, 2017

  Northern Virginia  

October 6, 2017

St. Louis

November 28, 2017

Gross Proceeds
(in millions)

Gain on Sale
(in millions)

$

$

20.2  

$

34.0  

37.1  

91.3  

$

9.6

15.6

14.7

39.9

(1) The property was held in a consolidated joint venture in which we owned a 75% interest. We recognized a gain on the sale of approximately $11.7 million ,

net of noncontrolling interests.

On February 9, 2018, the Operating Partnership closed on the sale of 34551 Ardenwood Boulevard, a 323,000 square foot technology manufacturing property

in Silicon Valley for approximately $73 million . We expect to recognize a gain on the sale of approximately $25 million in the first quarter of 2018. The property
was classified as held for sale as of  December 31, 2017 .

On January 25, 2018, the Operating Partnership closed on the sale of 200 Quannapowitt Parkway, a substantially vacant, 211,000 square foot data center
redevelopment project in Boston for $15 million. We expect to recognize a loss on the sale of approximately $0.4 million in the first quarter of 2018. The property
was classified as held for sale as of  December 31, 2017 .

None of our property sales to date represented a significant component or significant shift in strategy that would require discontinued operations presentation.

The growing acceptance by private institutional investors of the data center asset class has generally pushed capitalization rates lower as such private
investors typically have lower return expectations than we do. As a result, we anticipate that near-term single-asset acquisitions activity will comprise a smaller
percentage of our growth until seller price expectations realign with our return requirements.

73

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Construction ($ in thousands)

Development Lifecycle

Development Construction in
Progress
Space Held for Development (5)

Base Building Construction

Datacenter Construction

Equipment Pool & Other Inventory

Campus, Tenant Improvements  
& Other

Total Development
Construction in Progress

Land Inventory

Enhancement & Other

Recurring

As of December 31, 2017

As of December 31, 2016

Net 
Rentable 
Square Feet (1)

Current 
Investment 
(2)

Future 
Investment 
(3)

Total Cost

Net 
Rentable 
Square Feet (1)

Current 
Investment 
(4)

Future 
Investment 
(3)

Total Cost

1,573,758   $
1,333,763  
1,366,393  

416,553   $
222,093  
748,006  

—   $

149,507

500,674

—  

8,360

416,553

371,600

1,248,680

7,245

14,147

658,541

2,058,225

—  

27,209

29,184

352,406

35,625

53,169

920,232   $

1,189,110  
831,706  

2,941,048  

(6)  

714,934

  $

2,499,425

  $

284,234   $
116,925  
309,065  
9,642  

—   $

154,248  
447,324  
—  

12,564  

22,115  

732,430  
195,525  
8,623  
13,983  
950,561   $

623,687  
—  
8,060  
25,506  
657,253   $

284,234

271,173

756,389

9,642

34,679

1,356,117

195,525

16,683

39,489

1,607,814

7,245

5,787

1,399,684  
352,406  

8,416
23,985  
1,784,491   $

4,273,914  
(6)  

Total Construction in Progress

  $

(1)
(2)
(3)
(4)
(5)
(6)

Square footage is based on current estimates and project plans, and may change upon completion of the project or due to remeasurement.
Represents balances incurred through December 31, 2017 and included in building and improvements in the consolidated balance sheets.
Represents estimated cost to complete specific scope of work pursuant to contract, budget or approved capital plan.
Represents balances incurred through December 31, 2016 and included in building and improvements in the consolidated balance sheets.
Excludes space held for development related to unconsolidated joint ventures and properties held for sale.
Represents approximately 539 acres as of December 31, 2017 and approximately 414 acres as of December 31, 2016 .

Land inventory and space held for development reflect cumulative cost spent pending future development. Base building construction consists of ongoing
improvements to building infrastructure in preparation for future data center fit-out. Datacenter construction includes 1.4 million square feet of Turn Key Flex®,
colocation and Powered Base Building® products with a cost to date of approximately $748.0 million . Generally, we expect to deliver the space within 12 months;
however, lease commencement dates may significantly impact final delivery schedules. Equipment pool and other inventory represent the value of long-lead time
equipment and materials required for timely deployment and delivery of data center construction fit-out. Campus, tenant improvements and other costs include the
value of development work which benefits space recently converted to our operating portfolio and is composed primarily of shared infrastructure projects and first-
generation tenant improvements.

Future Uses of Cash

Our properties require periodic investments of capital for customer-related capital expenditures and for general capital improvements. As of December 31,
2017 , we had approximately 2.7 million square feet of space under active development and approximately 1.7 million square feet of space held for development
and we also owned approximately 1.4 million net rentable square feet of data center space with extensive installed tenant improvements. Turn-Key Flex® space is
move-in-ready space for the placement of computer and network equipment required to provide a data center environment. Depending on demand for additional
Turn-Key Flex® space, we expect to incur significant tenant improvement costs to build out and develop these types of spaces. At December 31, 2017 ,
approximately 2.7 million square feet was under construction for Turn-Key Flex®, colocation and Powered Base Building® products, all of which are expected to
be income producing on or after completion, in seven U.S. metropolitan areas, four European metropolitan areas, two Australian metropolitan areas, one Canadian
metropolitan area and one Asian metropolitan area, consisting of approximately 1.3 million square feet of base building construction and 1.4

74

 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
 
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
 
   
Table of Contents

Index to Financial Statements

million square feet of data center construction. At December 31, 2017 , we had open commitments, including amounts reimbursable of approximately  $6.3 million
, related to construction contracts of approximately $317.3 million .

We currently expect to incur approximately $0.9 billion to $1.1 billion of capital expenditures for our development programs during the year ending
December 31, 2018 , although this amount may increase or decrease, potentially materially, based on numerous factors, including changes in demand, leasing
results and availability of debt or equity capital.

Historical Capital Expenditures

(in thousands)

Development projects

Enhancement and improvements

Recurring capital expenditures

Total capital expenditures (excluding indirect costs)

Year Ended December 31,

2017

2016

$

$

912,217   $

6,340  

136,290  

1,054,847   $

573,960

4,753

75,476

654,189

For the year ended December 31, 2017 , total capital expenditures increased $400.7 million to approximately $1,054.8 million from $654.2 million for the
same period in 2016 . Capital expenditures on our development projects plus our enhancement and improvements projects for the year ended December 31, 2017
were approximately $918.6 million , which reflects an increase of approximately 59% from the same period in 2016 . This increase was primarily due to increased
spending for ground-up development projects, Turn-Key Flex space development and base building improvements. Our development capital expenditures are
generally funded by our available cash and equity and debt capital.

Indirect costs related to construction and leasing activities, including capitalized interest, capitalized in the years ended December 31, 2017 and 2016 were

$95.8 million and $85.2 million , respectively. Capitalized interest comprised approximately $21.7 million and $16.3 million of the total indirect costs capitalized
for the years ended December 31, 2017 and 2016 , respectively. Capitalized interest in the year ended December 31, 2017 increased compared to the same period
in 2016 due to an increase in qualifying activities. Excluding capitalized interest, the indirect costs increased in the year ended December 31, 2017 compared to the
same period in 2016 due primarily to increased capitalized amounts relating to compensation expense of employees directly engaged in construction and leasing
activities. See “—Future Uses of Cash” above for a discussion of the amount of capital expenditures we expect to incur during the year ending December 31, 2018
.

We are also subject to the commitments discussed below under “Commitments and Contingencies,” “Off-Balance Sheet Arrangements” and “Distributions.”

We actively pursue opportunities for potential acquisitions, with due diligence and negotiations often at different stages at different times. The dollar value of

acquisitions for the year ending December 31, 2018 will be based on numerous factors, including customer demand, leasing results, availability of debt or equity
capital and acquisition opportunities.

We may from time to time seek to retire or repurchase our outstanding debt or the equity of our Parent Company through cash purchases and/or exchanges
for equity securities of our Parent Company in open market purchases, privately negotiated transactions or otherwise. Such repurchases or exchanges, if any, will
depend on prevailing market conditions, our liquidity requirements, contractual restrictions or other factors. The amounts involved may be material.

We expect to meet our short-term and long-term liquidity requirements, including to pay for scheduled debt maturities and to fund acquisitions and non-
recurring capital improvements, with net cash from operations, future long-term secured and unsecured indebtedness and the issuance of equity and debt securities
and the proceeds of equity issuances by our Parent Company. We also may fund future short-term and long-term liquidity requirements, including acquisitions and
non-recurring capital improvements, using our global revolving credit facility pending permanent financing. If we are not able to obtain additional financing on
terms attractive to us, or at all, including as a result of the circumstances described above under “Factors Which May Influence Future Results of Operations—
Global market and economic conditions”, we may be required to reduce our acquisition or capital expenditure plans, which could have a material adverse effect
upon our business and results of operations.

Distributions

All distributions on our units are at the discretion of our Parent Company’s board of directors. In 2017, 2016 and 2015, our Operating Partnership declared

the following distributions (in thousands):

75

 
 
Table of Contents

Index to Financial Statements

Date 
distribution  
declared

Feb 25, 2015

May 12, 2015

Aug 11, 2015

Nov 12, 2015

Feb 17, 2016

May 11, 2016

Aug 10, 2016

Nov 9, 2016

Mar 1, 2017

May 8, 2017

Aug 7, 2017

Nov 2, 2017

  Distribution payable date
  March 31, 2015
  June 30, 2015
  September 30, 2015

December 31, 2015 for 
Preferred Units; 
   January 15, 2016 for 
Common Units

  March 31, 2016
  June 30, 2016
  September 30, 2016

December 31, 2016 for 
Preferred Units; 
   January 13, 2017 for 
Common Units

  March 31, 2017
  June 30, 2017
  September 29, 2017

December 29, 2017 for 
Preferred Units; 
   January 12, 2018 for 
Common Units

Annual rate of distribution per unit

  $

  $
  $

  $
  $

  $

  $

Series C
Preferred
Units

Series E
Preferred
Units

Series F
Preferred
Units

Series G
Preferred
Units

Series H
Preferred
Units

Series I
Preferred
Units

Series J
Preferred
Units

$

$

$

$

$

  $

  $
  $

  $
  $

3,672

3,672

3,672

3,672

14,688

3,672

3,672

3,672

3,672

14,688

3,672

3,672

3,672

6,730

6,730

6,730

6,730

26,920

6,730

6,730

6,730

6,730

26,920

6,730

6,730

6,730

$

$

$

$

$

$

$

$

$

$

—  
—  
—  

5,600

(2)  

5,600

3,969

3,969

3,969

3,969

15,876

3,969

3,969

3,969

—  
—  
—  

—  
—  
—  
—  
—  

—  
—  
—  
—  
—  

Common 
Units

$

117,896

(1)  

117,938

(1)  

117,962

(1)  

$

$

$

$

126,827

(1)  

480,623

131,587

(3)  

131,607

(3)  

131,657

(3)  

144,193

(3)  

539,044

150,968

(5)  

153,176

(5)  

199,049

(5)  

$

$

$

$

$

—  
—  
—  

—  
—  
—  
—  
—  

—  
—  
—  
—  
—  

3,963

(7)  

3,963

$

5,031

5,031

5,031

5,031

20,124

5,031

5,031

— (4)  

—  

10,062

—  
—  
—  

—  
—  

$

$

$

$

$

3,023

3,023

3,023

3,023

12,092

3,023

3,023

3,023

3,023

12,092

3,023

— (6)  
—  

—  

$

3,023

$

14,688

3,672

6,730

3,969

4,200

(7)  

199,061

(5)  

  $

  $

26,920

$

15,876

$

4,200

$

702,254

1.84375

$

1.58800

$

1.31250

1.65625

$

1.75000

$

1.65625

$

1.46875

(1)
(2)
(3)
(4)

(5)
(6)

(7)

$ 3.400 annual rate of distribution per unit.
Represents a pro rata distribution from and including the original issue date to and including December 31, 2015.
$3.520 annual rate of distribution per unit.
Redeemed on September 15, 2016 for  $25.35972  per unit, or a redemption price of  $25.00  per unit, plus accrued and unpaid distributions up to but not
including the redemption date of approximately  $4.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $10.3 million  were recorded as a reduction to net income available to common unitholders.
$3.720 annual rate of distribution per unit.
Redeemed on April 5, 2017 for  $25.01840  per unit, or a redemption price of  $25.00  per unit, plus accrued and unpaid distributions up to but not
including the redemption date of approximately  $0.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $6.3 million  were recorded as a reduction to net income available to common unitholders.
Represents a pro rata distribution from and including the original issue date to and including December 31, 2017.

As of December 31, 2017 , we were a party to interest rate swap agreements which hedge variability in cash flows related the U.S. LIBOR, GBP-LIBOR and

CDOR-based tranches of the unsecured term loans. Under these swaps, we pay variable-rate amounts in exchange for fixed-rate payments over the life of the
agreements without exchange of the underlying principal amounts. See Item 7A. “Quantitative and Qualitative Disclosures about Market Risk.”

76

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

The following table summarizes our debt, interest, lease and construction contract payments due by period as of December 31, 2017 (dollars in thousands):

Obligation
Long-term debt principal payments (1)
Interest payable (2)
Ground leases (3)

Operating leases
Construction contracts (4)

Total

2018

2019-2020

2021-2022

Thereafter

$

8,716,731   $

593   $

1,710,031   $

2,325,117   $

4,680,990

1,692,722  

37,318  

908,559  

317,265  

302,018  

1,193  

75,039  

317,265  

560,523  

2,385  

162,403  

—  

395,583  

1,853  

158,519  

—  

434,598

31,887

512,598

—

$

11,672,595   $

696,108   $

2,435,342   $

2,881,072   $

5,660,073

(1)

(2)

Includes $558.2 million of borrowings under our global revolving credit facility and $1.4 billion of borrowings under our unsecured term loan and
excludes $0.2 million of loan premiums related to assumed mortgage loans, $2.2 million discount on the 5.875% 2020 notes, $0.6 million discount on the
3.400% 2020 notes, $0.3 million discount on the 5.250% 2021 notes, $2.1 million discount on the 3.625% 2022 notes, $2.6 million discount on the
3.950% 2022 notes, $1.6 million on the 4.750% 2023 notes, $1.2 million on the 2.625% 2024 notes, $1.1 million on the 2.750% 2024 notes, $2.6 million
on the 4.250% 2025 notes, $0.2 million on the 2.750% 2023 notes, $0.7 million on the 3.700% 2027 notes and $3.1 million on the 3.300% 2029 notes. All
amounts exclude deferred financing costs.
Interest payable is based on the interest rate in effect on December 31, 2017 , including the effect of interest rate swaps. Interest payable excluding the
effect of interest rate swaps is as follows (in thousands):

2017

2018-2019

2020-2021

Thereafter

$

$

302,159

560,806

395,850

434,979

1,693,794

(3)

This is comprised of ground lease payments on 2010 East Centennial Circle, Chemin de l’Epinglier 2, Clonshaugh Industrial Estate I and II, Paul van
Vlissingenstraat 16, Gyroscoopweg 2E-2F, Naritaweg 52, Manchester Technopark and 29A International Business Park. After February 2036, rent for the
remaining term of the 2010 East Centennial Circle ground lease will be determined based on a fair market value appraisal of the asset and, as a result, is
excluded from the above information. After December 2036, rent for the remaining term of the Naritaweg 52 ground lease will be determined based on a
fair market value appraisal of the asset and, as a result, is excluded from the above information. The Chemin de l’Epinglier 2 ground lease which expires
in July 2074 contains potential inflation increases which are not reflected in the table above. The Paul van Vlissingenstraat 16, Chemin de l’Epinglier 2,
Gyroscoopweg 2E-2F, Naritaweg 52 and Clonshaugh Industrial Estate I and II amounts are translated at the December 31, 2017 exchange rate of $1.20 to
€1.00. The Manchester Technopark amounts are translated at the December 31, 2017 exchange rate of $1.35 to £1.00. The 29A International Business
Park amounts are translated at the December 31, 2017 exchange rate of $0.75 to S$1.00.

(4)

From time to time in the normal course of our business, we enter into various construction contracts with third parties that may obligate us to make
payments. At December 31, 2017 , we had open commitments, including amounts reimbursable of approximately  $6.3 million , related to construction
contracts of approximately $317.3 million .

77

 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Outstanding Consolidated Indebtedness

The table below summarizes our debt maturities and principal payments as of December 31, 2017 (in thousands):

2018

2019

2020

2021

2022

Thereafter

  Subtotal

Unamortized discount

Unamortized premium

    Total

$

$

$

Senior Notes

Mortgage Loans

—   $

593   $

Global Revolving
Credit Facility (1)

Unsecured Term
Loans

—   $

—  

558,191  

—   $

—  

—  

—  

—  

—  

1,125,117  

—  

300,000  

150,063  

1,000,000  

400,000  

800,000  

4,276,990  

558,191   $

1,425,117   $

6,627,053   $

—  

—  

—  

—  

(18,508)  

—  

Total 
Debt

593

150,707

1,559,324

1,525,117

800,000

4,680,990

8,716,731

(18,508)

241

644  

1,133  

—  

—  

104,000  

106,370   $

—  

241  

558,191   $

1,425,117   $

6,608,545   $

106,611   $

8,698,464

(1)

Subject to two six -month extension options exercisable by us. The bank group is obligated to grant the extension options provided we give proper notice,
we make certain representations and warranties and no default exists under the global revolving credit facility, as applicable.

The table below summarizes our debt, as of December 31, 2017 (in millions):

Debt Summary:

Fixed rate

Variable rate debt subject to interest rate swaps

Total fixed rate debt (including interest rate swaps)

Variable rate—unhedged

Total

Percent of Total Debt:

Fixed rate (including hedged variable rate debt)

Variable rate

Total

Weighted Average Interest Rate as of December 31, 2017 (1) :

Fixed rate (including hedged variable rate debt)

Variable rate

Total interest rate

(1)

Excludes impact of deferred financing cost amortization.

$

$

6,479.3

1,018.3

7,497.6

1,219.1

8,716.7

86.0%

14.0%

100.0%

3.70%

2.03%

3.47%

As of December 31, 2017 , we had approximately $8.7 billion of outstanding consolidated long-term debt as set forth in the table above. Our ratio of debt to

total enterprise value was approximately 25% (based on the closing price of Digital Realty Trust, Inc.’s common stock on December 31, 2017 of $113.90 ). For
this purpose, our total enterprise value is defined as the sum of the market value of Digital Realty Trust, Inc.’s outstanding common stock (which may decrease,
thereby increasing our debt to total enterprise value ratio), plus the liquidation value of Digital Realty Trust, Inc.’s preferred stock, plus the aggregate value of our
Operating Partnership’s units not held by Digital Realty Trust, Inc. (with the per unit value equal to the market value of one share of Digital Realty Trust, Inc.’s
common stock and excluding long-term incentive units, Class C Units and Class D Units), plus the book value of our total consolidated indebtedness.

The variable rate debt shown above bore interest at interest rates based on various one-month LIBOR, EURIBOR, GBP LIBOR, SOR, BBR, HIBOR, JPY

LIBOR, CDOR and U.S. Prime rates, depending on the respective agreement governing the

78

 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

debt, including our global revolving credit facility and unsecured term loans. As of December 31, 2017 , our debt had a weighted average term to initial maturity of
approximately 5.4 years (or approximately 5.5 years assuming exercise of extension options).

Off-Balance Sheet Arrangements

As of December 31, 2017 , we were party to interest rate swap agreements related to $1.0 billion of outstanding principal amount on our variable rate debt.

See Item 7A. “Quantitative and Qualitative Disclosures about Market Risk.”

As of December 31, 2017 , our pro-rata share of mortgage debt of unconsolidated joint ventures was approximately $263.5 million , of which $54.5 million

is subject to interest rate swap agreements.

Cash Flows

The following summary discussion of our cash flows is based on the consolidated statements of cash flows and is not meant to be an all-inclusive discussion

of the changes in our cash flows for the periods presented below.

Comparison of Year Ended December 31, 2017 to Year Ended December 31, 2016 and Comparison of Year Ended December 31, 2016 to Year Ended

December 31, 2015

The following table shows cash flows and ending cash, cash equivalent and restricted cash balances for the years ended December 31, 2017 , 2016 and 2015

(in thousands).

Net cash provided by operating activities

Net cash used in investing activities

Net cash provided by financing activities

Net (decrease) increase in cash, cash equivalents and restricted cash

Year Ended December 31,

2017

2016

1,023,305   $

911,242   $

(1,357,153)  

(1,303,597)  

321,200  

(12,648)   $

350,617  

(41,738)   $

$

$

2015

796,840

(2,527,501)

1,750,531

19,870

Cash provided by operating activities in 2017 increased approximately $112.1 million over 2016 and cash provided by operating activities in 2016 increased

approximately $114.4 million over 2015. The 2017 increase was driven by year-over-year increase in the cash flow from properties acquired in the July 2016
European Portfolio Acquisition and the cash flow from properties acquired in the September 2017 DFT Merger. The increases in cash flow were offset by
properties sold in 2016 and 2017 and an increase in interest expense. The 2016 increase in net cash provided by operating activities was due to the Telx Acquisition
and European Portfolio Acquisition and increased revenues from new leasing at our stabilized properties, completed and leased development space which was
partially offset by increased operating and interest expenses.

Net cash used in investing activities in 2017 increased $53.6 million over 2016 due to an increase in improvements to investments in real estate that were

primarily development driven offset by a larger 2016 cash acquisition total (net of cash dispositions in both periods). Net cash used in investing activities in 2016
decreased $1.2 billion over 2015 due to decreased acquisition activity, partially offset by proceeds from property sales of $359.3 million in 2016 as compared to
$185.6 million in 2015.

Net cash flows provided by financing activities for the Company consisted of the following amounts (in thousands).

Year Ended December 31,

Repayments of borrowings, net of proceeds

Net proceeds from issuance of common and preferred stock, including equity plans

Redemption of preferred stock

Net proceeds from unsecured senior notes

Dividend and distribution payments

Other

Net cash provided by financing activities

$

$

79

2016

2015

2017
(1,448,867)   $

411,309  

(182,500)  

2,265,060  

(715,209)  

(8,593)  

(498,515)   $

1,090,171  

(287,500)  

675,591  

(605,390)  

(23,740)  

321,200   $

350,617   $

(52,900)

919,840

—

1,445,127

(548,058)

(13,478)

1,750,531

 
 
 
 
   
   
 
 
Table of Contents

Index to Financial Statements

Net cash provided by financing activities decreased by $29.4 million in 2017 primarily as a result of an increase in net proceeds from the issuance of
unsecured senior notes in 2017 as compared to 2016, offset by increased repayments of borrowings on the global revolving credit facility, a decrease in net equity
issuances and an increase in dividends and distributions paid in 2017 as compared to 2016. The increase in dividend and distribution payments for the year ended
December 31, 2017 as compared to the same period in 2016 was due to an increase in the number of shares outstanding and dividend amount per share of common
stock in 2017 as compared to 2016 and the payment of dividends on our series J preferred stock during the year ended December 31, 2017, whereas this series of
preferred stock was not outstanding in year ended December 31, 2016. The 2017 borrowing activity was used to fund a portion of the repayment, redemption
and/or discharge of DFT debt and the payment of certain transaction fees and expenses incurred in connection with the DFT Merger. The 2016 equity issuance was
driven primarily by the European Portfolio Acquisition.

The decrease in cash provided by financing activities in 2016 as compared to 2015 was a result of lower net repayments on borrowings along with the sale of
common stock, issuance of series I preferred stock, and the sale of unsecured notes due 2020, 2022 and 2025 in the year ended December 31, 2015 as compared to
2016, which included the issuance of common stock offset by the redemption of our series E preferred stock, in addition to higher dividend and distribution
payments. The increase in dividend and distribution payments for the year ended December 31, 2016 as compared to the same period in 2015 was due to an
increase in the number of shares outstanding and dividend amount per share of common stock in 2016 as compared to 2015 and the payment of dividends on our
series I preferred stock during the year ended December 31, 2016, whereas this series of preferred stock was not outstanding for the entire year ended December
31, 2015.

Net cash flows provided by financing activities for the Operating Partnership consisted of the following amounts (in thousands).

Year Ended December 31,

Repayments of borrowings, net of proceeds

General partner contributions, net

Net proceeds from unsecured senior notes

Distribution payments

Other

Net cash provided by financing activities

$

$

2017
(1,448,867)   $

228,809  

2,265,060  

(715,209)  

(8,593)  

2016

2015

(498,515)   $

802,671  

675,591  

(605,390)  

(23,740)  

(52,900)

919,840

1,445,127

(548,058)

(13,478)

1,750,531

321,200   $

350,617   $

Net cash provided by financing activities decreased by $29.4 million in 2017 primarily as a result of an increase in net proceeds from the issuance of
unsecured senior notes in 2017 as compared to 2016, offset by increased repayments of borrowings on the global revolving credit facility, a decrease in net equity
issuances and an increase in distributions paid in 2017 as compared to 2016. The increase in distribution payments for the year ended December 31, 2017 as
compared to the same period in 2016 was due to an increase in the number of units outstanding and distribution amount per common unit in 2017 as compared to
2016 and the payment of distributions on our series J preferred units during the year ended December 31, 2017, whereas this series of preferred units was not
outstanding in year ended December 31, 2016. The 2017 borrowing activity was used to fund a portion of the repayment, redemption and/or discharge of DFT debt
and the payment of certain transaction fees and expenses incurred in connection with the DFT Merger. The 2016 equity issuance was driven primarily by the
European Portfolio Acquisition.

The decrease in cash provided by financing activities in 2016 as compared to 2015 was a result of lower net repayments on borrowings along with the sale of
common units, issuance of series I preferred units, and the sale of unsecured notes due 2020, 2022 and 2025 in the year ended December 31, 2015 as compared to
2016, which included the issuance of common units offset by the redemption of our series E preferred units, in addition to higher distribution payments. The
increase in distribution payments for the year ended December 31, 2016 as compared to the same period in 2015 was due to an increase in the number of units
outstanding and distribution amount per common unit in 2016 as compared to 2015 and the payment of distributions on our series I preferred units during the year
ended December 31, 2016, whereas this series of preferred units was not outstanding for the entire year ended December 31, 2015.

80

   
   
 
 
Table of Contents

Index to Financial Statements

Noncontrolling Interests in Operating Partnership

Noncontrolling interests relate to the common units in our Operating Partnership that are not owned by Digital Realty Trust, Inc., which, as of December 31,

2017 , amounted to 4.0% of our Operating Partnership common units. In conjunction with our formation, our Operating Partnership issued common units to third
party sellers in connection with our acquisition of real estate interests from such third parties.

Limited partners who acquired common units in connection with our formation have the right to require our Operating Partnership to redeem part or all of

their common units for cash based upon the fair market value of an equivalent number of shares of Digital Realty Trust, Inc. common stock at the time of the
redemption. Alternatively, we may elect to acquire those common units in exchange for shares of Digital Realty Trust, Inc. common stock on a one-for-one basis,
subject to adjustment in the event of stock splits, stock dividends, issuance of stock rights, specified extraordinary distributions and similar events. Pursuant to
registration rights agreements we entered into with these third-party contributors, we filed a shelf registration statement covering the issuance of the shares of our
common stock issuable upon redemption of the common units, and the resale of those shares of common stock by the holders. In connection with the DFT Merger,
approximately 0.5 million common units of the Operating Partnership were issued to certain former unitholders in DuPont Fabros Technology, L.P., which are
subject to certain restrictions and, accordingly, are not presented as permanent capital in the consolidated balance sheet.

Inflation

Many of our leases provide for separate real estate tax and operating expense escalations. In addition, many of the leases provide for fixed base rent
increases. We believe that inflationary increases may be at least partially offset by the contractual rent increases and expense escalations described above.

Funds From Operations

We calculate funds from operations, or FFO, in accordance with the standards established by the National Association of Real Estate Investment Trusts, or
Nareit. FFO represents net income (loss) (computed in accordance with GAAP), excluding gains (or losses) from sales of property, excluding a gain from a pre-
existing relationship and after adjustments for impairment charges, real estate related depreciation and amortization (excluding amortization of deferred financing
costs), non-controlling interests in operating partnership, unconsolidated partnerships and joint ventures. Management uses FFO as a supplemental performance
measure because, in excluding real estate related depreciation and amortization, gains and losses from property dispositions and certain other gains and after
adjustments for unconsolidated partnerships, joint ventures and certain other items, it provides a performance measure that, when compared year over year,
captures trends in occupancy rates, rental rates and operating costs. We also believe that, as a widely recognized measure of the performance of REITs, FFO will
be used by investors as a basis to compare our operating performance with that of other REITs. However, because FFO excludes depreciation and amortization and
captures neither the changes in the value of our data centers that result from use or market conditions, nor the level of capital expenditures and capitalized leasing
commissions necessary to maintain the operating performance of our data centers, all of which have real economic effect and could materially impact our financial
condition and results from operations, the utility of FFO as a measure of our performance is limited. Other REITs may not calculate FFO in accordance with the
Nareit definition and, accordingly, our FFO may not be comparable to other REITs’ FFO. FFO should be considered only as a supplement to net income computed
in accordance with GAAP as a measure of our performance. 

81

Table of Contents

Index to Financial Statements

Reconciliation of Net Income Available to Common Stockholders to Funds From Operations (FFO)
(in thousands, except per share and unit data)
(unaudited)

Net income available to common stockholders

Adjustments:

Noncontrolling interests in operating partnership
Real estate related depreciation and amortization (1)

Real estate related depreciation and amortization related to investment in unconsolidated
joint ventures

Impairment of investments in real estate

Impairment charge on Telx trade name

Gain on sale of properties

Noncontrolling interests share of gain on sale of property

Gain on settlement of pre-existing relationships with Telx

FFO available to common stockholders and unitholders (2)

Basic FFO per share and unit

Diluted FFO per share and unit (2)

Weighted average common stock and units outstanding

Basic
Diluted (2)

(1)   Real estate related depreciation and amortization was computed as follows:

Depreciation and amortization per income statement

Impairment charge on Telx trade name

Non-real estate depreciation

Real estate related depreciation and amortization

Year Ended December 31,

2017

2016

2015

$

173,148   $

332,088   $

217,266

3,770  

830,252  

11,566  

28,992  

—  

(40,354)  

3,900  

—  

5,298  

682,810  

11,246  

—  

6,122  

(169,902)  

—  

—  

$

$

$

$

1,011,274   $

867,662   $

5.68   $

5.65   $

5.69   $

5.67   $

178,056  

178,895  

152,360  

153,086  

842,464  

—  

(12,212)  

830,252   $

699,324  

(6,122)  

(10,392)  

682,810   $

4,442

563,729

11,418

—

—

(94,604)

—

(14,355)

687,896

4.88

4.86

140,906

141,524

570,527

—

(6,798)

563,729

(2)

For all periods presented, we have excluded the effect of dilutive series C, series E, series F, series G, series H, series I and series J preferred stock, as
applicable, that may be converted upon the occurrence of specified change in control transactions as described in the articles supplementary governing the
series C, series E, series F, series G, series H, series I and series J preferred stock, as applicable, which we consider highly improbable.

Weighted average common stock and units outstanding

Add: Effect of dilutive securities

Weighted average common stock and units outstanding—diluted

82

Year Ended December 31,

2017

2016

2015

178,056  

839  

178,895  

152,360  

726  

153,086  

140,906

618

141,524

 
 
 
 
 
   
   
 
   
   
 
   
   
 
 
 
 
Table of Contents

Index to Financial Statements

ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our future income, cash flows and fair values relevant to financial instruments depend upon prevalent market interest rates. Market risk refers to the risk of

loss from adverse changes in market prices and interest rates. We do not use derivatives for trading or speculative purposes and only enter into contracts with major
financial institutions based on their credit ratings and other factors.

Analysis of Debt between Fixed and Variable Rate

We use interest rate swap agreements and fixed rate debt to reduce our exposure to interest rate movements. As of December 31, 2017 , our consolidated

debt was as follows (in millions):

Fixed rate debt

Variable rate debt subject to interest rate swaps

Total fixed rate debt (including interest rate swaps)

Variable rate debt

Total outstanding debt

Carrying Value

Estimated Fair 
Value

$

$

6,479.3   $

1,018.3  

7,497.6  

1,219.1  

8,716.7   $

6,829.0

1,018.3

7,847.3

1,219.1

9,066.4

Interest rate derivatives and their fair values as of December 31, 2017 and December 31, 2016 were as follows (in thousands):

Notional Amount

As of 
December 31, 
2017

As of 
December 31, 
2016

Type of 
Derivative

Strike 
Rate

  Effective Date

Expiration 
Date

Fair Value at Significant Other 
Observable Inputs (Level 2)

As of 
December 31, 
2017

As of 
December 31, 
2016

Currently-paying
contracts

$

206,000 (1)

$

54,905 (1)
—  
—  

75,000 (1)

75,000 (1)

300,000 (2)
—  

229,012 (4)

—  
—  

206,000 (1)

54,905 (1)

75,000 (1)

75,000 (1)

300,000 (2)

130,850 (3)

209,132 (4)

78,357 (5)
1,018,274  

$

73,294 (5)
1,124,181  

Swap

Swap

Swap

Swap

Swap

Swap

Swap

Swap

Swap

Swap

1.611  
1.605  
0.932  
0.670  
1.016  
1.164  
1.435  
0.925  
0.792  
0.779  

Jun 15, 2017

Jan 15, 2020

$

1,409

$

Jun 6, 2017

Jan 6, 2020

Jun 18, 2012

Apr 18, 2017

Aug 6, 2012

Apr 6, 2016

Jan 15, 2016

Jan 15, 2016

Apr 6, 2017

Jan 6, 2021

Jan 15, 2021

Jan 15, 2023

Jul 17, 2012

Apr 18, 2017

Jan 15, 2016

Jan 15, 2016

Jan 15, 2019

Jan 15, 2021

374
—  
—  

2,260

1,947

9,978

—  

(430)

3,034

18,572

$

$

—

—

(90)

16

1,911

1,487

8,128

18

(1,818)

1,556

11,208

Represents portions of the U.S. dollar tranche of the  5 -Year Term Loan.
Represents the U.S. dollar tranche of the  7 -Year Term Loan.
Represents a portion of the Singapore dollar tranche of the  5 -Year Term Loan. Translation to U.S. dollars is based on exchange rate of $0.69 to 1.00
SGD as of December 31, 2016 .
Represents the British pound sterling tranche of the  5 -Year Term Loan. Translation to U.S. dollars is based on exchange rates of  $1.35  to £1.00 as of 
December 31, 2017 and $1.23  to £1.00 as of December 31, 2016 .
Represents the Canadian dollar tranche of the  5 -Year Term Loan. Translation to U.S. dollars is based on exchange rates of  $0.80  to 1.00 CAD as of 
December 31, 2017 and $0.74  to 1.00 CAD as of  December 31, 2016 .

83

$

(1)
(2)
(3)

(4)

(5)

 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
Table of Contents

Index to Financial Statements

Sensitivity to Changes in Interest Rates

The following table shows the effects if assumed changes in interest rates occurred, based on fair values and interest expense as of December 31, 2017 :

Assumed event
Increase in fair value of interest rate swaps following an assumed 10% increase in interest rates

Decrease in fair value of interest rate swaps following an assumed 10% decrease in interest rates

Increase in annual interest expense on our debt that is variable rate and not subject to swapped interest following a 10% increase in
interest rates

Decrease in annual interest expense on our debt that is variable rate and not subject to swapped interest following a 10% decrease
in interest rates

Increase in fair value of fixed rate debt following a 10% decrease in interest rates

Decrease in fair value of fixed rate debt following a 10% increase in interest rates

Change 
($ millions)

  $

4.7

(4.7)

2.1

(2.1)

66.6

(61.6)

Interest risk amounts were determined by considering the impact of hypothetical interest rates on our financial instruments. These analyses do not consider

the effect of any change in overall economic activity that could occur in that environment. Further, in the event of a change of that magnitude, we may take actions
to further mitigate our exposure to the change. However, due to the uncertainty of the specific actions that would be taken and their possible effects, these analyses
assume no changes in our financial structure.

Foreign Currency Exchange Risk

For the years ended December 31, 2017 , 2016 and 2015 , we had foreign operations in the United Kingdom, Ireland, France, Netherlands, Switzerland,
Canada, Singapore, Australia, Japan and Hong Kong. In 2017, we commenced operations in Tokyo and in 2016, we commenced operations in Germany. As such,
we are subject to risk from the effects of exchange rate movements of foreign currencies, which may affect future costs and cash flows. Our foreign operations are
conducted in the British pound sterling, Euro, Australian dollar, Singapore dollar, Canadian dollar, Hong Kong dollar and the Japanese yen. Our primary currency
exposures are to the British pound sterling, Euro and the Singapore dollar. We attempt to mitigate a portion of the risk of currency fluctuation by financing our
investments in the local currency denominations and we may also hedge well-defined transactional exposures with foreign currency forwards or options, although
there can be no assurances that these will be effective. As a result, changes in the relation of any such foreign currency to U.S. dollars may affect our revenues,
operating margins and distributions and may also affect the book value of our assets and the amount of stockholders’ equity. For the years ended December 31,
2017 , 2016 and 2015 , operating revenues from properties outside the United States contributed $515.2 million, $442.9 million and $392.4 million, respectively,
which represented 20.9%, 21.0% and 22.3% of our operating revenues, respectively. Net investment in properties outside the United States was $3.1 billion and
$2.6 billion as of December 31, 2017 and December 31, 2016 , respectively. Net assets in foreign operations were approximately $0.3 billion and $0.9 billion as of
December 31, 2017 and December 31, 2016 , respectively.

Other

Certain operating costs incurred by us, such as electricity, are subject to price fluctuations caused by the volatility of underlying commodity prices.  In 2017,
we entered into power purchase agreements to secure the renewable energy attributes from a wind farm in Illinois and a solar farm in North Carolina. In 2016, we
entered into a power purchase agreement to secure the renewable energy attributes from a wind farm in Texas.

84

 
 
 
 
 
 
Table of Contents

Index to Financial Statements

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

INDEX TO THE CONSOLIDATED FINANCIAL STATEMENTS

Management’s Reports on Internal Control over Financial Reporting

Reports of Independent Registered Public Accounting Firm

Consolidated Financial Statements of Digital Realty Trust, Inc.

Consolidated Balance Sheets as of December 31, 2017 and 2016

Consolidated Income Statements for each of the years in the three-year period ended December 31, 2017

Consolidated Statements of Comprehensive Income for each of the years in the three-year period ended December 31, 2017

Consolidated Statements of Equity for each of the years in the three-year period ended December 31, 2017

Consolidated Statements of Cash Flows for each of the years in the three-year period ended December 31, 2017

Consolidated Financial Statements of Digital Realty Trust, L.P.

Consolidated Balance Sheets as of December 31, 2017 and 2016

Consolidated Income Statements for each of the years in the three-year period ended December 31, 2017

Consolidated Statements of Comprehensive Income for each of the years in the three-year period ended December 31, 2017

Consolidated Statements of Capital for each of the years in the three-year period ended December 31, 2017

Consolidated Statements of Cash Flows for each of the years in the three-year period ended December 31, 2017

Consolidated Financial Statements of Digital Realty Trust, Inc. and Digital Realty Trust, L.P.

Notes to Consolidated Financial Statements

Supplemental Schedule—Schedule III—Properties and Accumulated Depreciation

Notes to Schedule III—Properties and Accumulated Depreciation

85

Page No.
86

88

92

94

95

96

100

104

106

107

108

111

115

171

178

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Management’s Report on Internal Control over Financial Reporting

The management of Digital Realty Trust, Inc. (the Company) is responsible for establishing and maintaining adequate internal control over financial
reporting, as such term is defined in Exchange Act Rules 13a-15(f) and 15(d)-15(f). Our internal control system was designed to provide reasonable assurance to
the Company’s management and board of directors regarding the preparation and fair presentation of published financial statements.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide

only reasonable assurance with respect to financial statement preparation and presentation.

Under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, we assessed the
effectiveness of the Company’s internal control over financial reporting as of December 31, 2017 . In making this assessment, we used the criteria set forth by the
Committee of Sponsoring Organizations of the Treadway Commission in Internal Control—Integrated Framework (2013) . We acquired DuPont Fabros
Technology, Inc. and subsidiaries during the year ended December 31, 2017 . We have excluded from our overall assessment of the Company's internal control
over financial reporting as of December 31, 2017 , internal control over financial reporting associated with DuPont Fabros Technology, Inc. and subsidiaries' total
assets of $8.4 billion and total revenues of $178 million. Based on our assessment, management concluded that as of December 31, 2017 , the Company’s internal
control over financial reporting was effective based on those criteria.

Our independent registered public accounting firm has issued an audit report on the Company’s internal control over financial reporting. This report appears

on pages 89 and 90.

86

Table of Contents

Index to Financial Statements

Management’s Report on Internal Control over Financial Reporting

The management of Digital Realty Trust, L.P. (the Operating Partnership) is responsible for establishing and maintaining adequate internal control over
financial reporting, as such term is defined in Exchange Act Rules 13a-15(f) and 15(d)-15(f). Our internal control system was designed to provide reasonable
assurance to the Operating Partnership’s management regarding the preparation and fair presentation of published financial statements.

All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide

only reasonable assurance with respect to financial statement preparation and presentation.

Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer of our general partner,

we assessed the effectiveness of the Operating Partnership’s internal control over financial reporting as of December 31, 2017 . In making this assessment, we used
the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control—Integrated Framework (2013) . We
acquired DuPont Fabros Technology, Inc. and subsidiaries during the year ended December 31, 2017 . We have excluded from our overall assessment of the
Operating Partnership's internal control over financial reporting as of December 31, 2017 , internal control over financial reporting associated with DuPont Fabros
Technology, Inc. and subsidiaries' total assets of $8.4 billion and total revenues of $178 million. Based on our assessment, management concluded that as of
December 31, 2017 , the Operating Partnership’s internal control over financial reporting was effective based on those criteria.

87

Table of Contents

Index to Financial Statements

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors
Digital Realty Trust, Inc.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Digital Realty Trust, Inc. and subsidiaries (the Company) as of December 31, 2017 and 2016,
the related consolidated income statements and consolidated statements of comprehensive income, equity, and cash flows for each of the years in the three‑year
period ended December 31, 2017, and the related notes and financial statement schedule III, properties and accumulated depreciation (collectively, the consolidated
financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of
December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2017, in
conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal
control over financial reporting as of December 31, 2017, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee
of Sponsoring Organizations of the Treadway Commission, and our report dated February 28, 2018 expressed an unqualified opinion on the effectiveness of the
Company’s internal control over financial reporting .

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the
Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing
procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that
respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial
statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall
presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

We have served as the Company’s auditor since 2004.

San Francisco, California

February 28, 2018

/s/    KPMG LLP

88

            
 
 
   
   
Table of Contents

Index to Financial Statements

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors
Digital Realty Trust, Inc.:

Opinion on Internal Control Over Financial Reporting

We have audited Digital Realty Trust, Inc. and subsidiaries’ (the Company) internal control over financial reporting as of December 31, 2017, based on criteria
established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our
opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on criteria established
in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance
sheets of the Company as of December 31, 2017 and 2016, the related consolidated income statements and statements of comprehensive income, equity, and cash
flows for each of the years in the three-year period ended December 31, 2017, and the related notes and financial statement schedule III, properties and
accumulated depreciation ( collectively, the consolidated financial statements), and our report dated February 28, 2018 expressed an unqualified opinion on those
consolidated financial statements.

The Company acquired DuPont Fabros Technology, Inc. and subsidiaries during the year ended December 31, 2017, and management excluded from its
assessment of the effectiveness of the Company’s internal control over financial reporting as of December 31, 2017, DuPont Fabros Technology, Inc. and
subsidiaries’ internal control over financial reporting associated with total assets of $8.4 billion and total revenues of $178 million included in the consolidated
financial statements of the Company as of and for the year ended December 31, 2017. Our audit of internal control over financial reporting of the Company also
excluded an evaluation of the internal control over financial reporting of DuPont Fabros Technology, Inc. and subsidiaries.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal
control over financial reporting, included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to
express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and
are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the
Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance
about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting
included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the
design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered
necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

89

Table of Contents

Index to Financial Statements

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial
reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the
transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of
financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of
unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with
the policies or procedures may deteriorate.

San Francisco, California

February 28, 2018

/s/    KPMG LLP

90

 
 
   
   
Table of Contents

Index to Financial Statements

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors of the General Partner and Partners
Digital Realty Trust, L.P.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Digital Realty Trust, L.P. and subsidiaries (the Company) as of December 31, 2017 and 2016,
the related consolidated income statements and consolidated statements of comprehensive income, capital, and cash flows for each of the years in the three‑year
period ended December 31, 2017, and the related notes and financial statement schedule III, properties and accumulated depreciation (collectively, the consolidated
financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of
December 31, 2017 and 2016, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2017, in
conformity with U.S. generally accepted accounting principles.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States)
(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and
regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to
have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of
internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial
reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and
performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the
consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as
evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

We have served as the Company’s auditor since 2004.

San Francisco, California

February 28, 2018

/s/    KPMG LLP

91

 
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share data)

ASSETS

Investments in real estate:

Properties:

Land

Acquired ground leases

Buildings and improvements

Tenant improvements

Total investments in properties

Accumulated depreciation and amortization

Net investments in properties

Investments in unconsolidated joint ventures

Net investments in real estate

Cash and cash equivalents

Accounts and other receivables, net of allowance for doubtful accounts of $6,737 and $7,446 
   as of December 31, 2017 and December 31, 2016, respectively

Deferred rent

Acquired above-market leases, net of accumulated amortization of $110,139 and $87,961 
as of December 31, 2017 and December 31, 2016, respectively

Goodwill

Acquired in-place lease value, deferred leasing costs and intangibles, 
net of accumulated amortization of $1,016,989 and $772,443 
as of December 31, 2017 and December 31, 2016, respectively

Restricted cash

Assets held for sale

Other assets

Total assets

LIABILITIES AND EQUITY

Global revolving credit facility

Unsecured term loan

Unsecured senior notes, net of discount

Mortgage loans, including premiums

Accounts payable and other accrued liabilities

Accrued dividends and distributions

Acquired below-market leases, net of accumulated amortization of $219,654 and $202,000 
as of December 31, 2017 and December 31, 2016, respectively

Security deposits and prepaid rents

Obligations associated with assets held for sale

Total liabilities

92

December 31, 2017

  December 31, 2016

$

1,136,341   $

11,150  

746,822

11,335

15,215,405  

10,267,525

553,040  

16,915,936  

(3,238,227)  

13,677,709  

163,477  

13,841,186  

51  

276,347  

430,026  

184,375  

3,389,595  

532,787

11,558,469

(2,668,509)

8,889,960

106,402

8,996,362

10,528

203,938

412,269

22,181

752,970

2,998,806  

1,522,378

13,130  

139,538  

131,291  

11,508

56,097

204,354

21,404,345   $

12,192,585

550,946   $

1,420,333  

6,570,757  

106,582  

980,218  

199,761  

249,465  

217,898  

5,033  

199,209

1,482,361

4,153,797

3,240

824,878

144,194

81,899

168,111

2,599

10,300,993  

7,060,288

$

$

 
 
   
 
   
 
   
 
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (continued)
(in thousands, except share and per share data)

Redeemable noncontrolling interests – operating partnership

Commitments and contingencies

Stockholders’ Equity:

Preferred Stock: $0.01 par value per share, 110,000,000 shares authorized, 50,650,000 and 
41,900,000 shares issued and outstanding as of December 31, 2017 and December 31, 2016, 
respectively

Common Stock: $0.01 par value, 315,000,000 shares authorized as of December 31, 2017 
and 265,000,000 shares authorized as of December 31, 2016; 205,470,300 and 
   159,019,118 shares issued and outstanding as of December 31, 2017 and 
   December 31, 2016, respectively

Additional paid-in capital

Accumulated dividends in excess of earnings

Accumulated other comprehensive loss, net

Total stockholders’ equity

Noncontrolling interests:

Noncontrolling interests in operating partnership

Noncontrolling interests in consolidated joint ventures

Total noncontrolling interests

Total equity

Total liabilities and equity

See accompanying notes to the consolidated financial statements.

93

December 31, 
2017

December 31, 
2016

53,902  

—

1,249,560  

1,012,961

2,044  

1,582

11,261,461  

5,764,497

(2,055,552)  

(1,547,420)

(108,432)  

(135,605)

10,349,081  

5,096,015

698,126  

2,243  

700,369  

29,684

6,598

36,282

11,049,450  

5,132,297

$

21,404,345   $

12,192,585

 
 
 
 
 
   
 
   
Table of Contents

Index to Financial Statements

Operating Revenues:

Rental

Tenant reimbursements

Interconnection and other

Fee income

Other

Total operating revenues

Operating Expenses:

Rental property operating and maintenance

Property taxes

Insurance

Change in fair value of contingent consideration

Depreciation and amortization

General and administrative

Transaction and integration expenses

Impairment of investments in real estate

Other

Total operating expenses

Operating income

Other Income (Expenses):

Equity in earnings of unconsolidated joint ventures

Gain on sale of properties

Interest and other income

Interest expense

Tax expense

Gain (loss) from early extinguishment of debt

Net income

Net income attributable to noncontrolling interests

Net income attributable to Digital Realty Trust, Inc.

Preferred stock dividends

Issuance costs associated with redeemed preferred stock

Net income available to common stockholders

Net income per share available to common stockholders:

Basic

Diluted

Weighted average common shares outstanding:

Basic

Diluted

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED INCOME STATEMENTS
(in thousands, except share and per share data)

Year Ended December 31,

2017

2016

2015

$

1,774,649   $

1,542,511   $

1,354,986

440,224  

235,652  

6,372  

1,031  

355,903  

204,317  

6,285  

33,197  

359,875

40,759

6,638

1,078

2,457,928  

2,142,213  

1,763,336

759,616  

124,014  

10,981  

—  

842,464  

161,441  

76,048  

28,992  

3,077  

660,177  

102,497  

9,492  

—  

699,324  

152,733  

20,491  

—  

213  

549,885

92,588

8,809

(44,276)

570,527

105,549

17,400

—

60,943

2,006,633  

451,295  

1,644,927  

497,286  

1,361,425

401,911

25,516  

40,354  

3,655  

(258,642)  

(7,901)  

1,990  

256,267  

(8,008)  

248,259  

(68,802)  

(6,309)  

17,104  

169,902  

(4,564)  

(236,480)  

(10,385)  

(1,011)  

431,852  

(5,665)  

426,187  

(83,771)  

(10,328)  

173,148   $

332,088   $

15,491

94,604

(2,381)

(201,435)

(6,451)

(148)

301,591

(4,902)

296,689

(79,423)

—

217,266

0.99   $

0.99   $

2.21   $

2.20   $

1.57

1.56

174,059,386  

149,953,662  

174,895,098  

150,679,688  

138,247,606

138,865,421

$

$

$

See accompanying notes to the consolidated financial statements.

94

 
 
 
 
 
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in thousands)

Net income

Other comprehensive income:

Foreign currency translation adjustments

(Decrease) increase in fair value of interest rate swaps and 
foreign currency hedges

Reclassification to interest expense from interest rate swaps

Comprehensive income

Comprehensive income attributable to noncontrolling interests

Comprehensive income attributable to Digital Realty Trust, Inc.

Year Ended December 31,

2017

2016

2015

$

256,267   $

431,852   $

301,591

28,709  

(86,621)  

(51,745)

(3,434)  

2,459  

284,001  

(8,569)  

41,998  

4,968  

392,197  

(5,025)  

$

275,432   $

387,172   $

(3,407)

2,621

249,060

(3,915)

245,145

See accompanying notes to the consolidated financial statements.

95

 
 
 
 
 
   
   
Table of Contents

Index to Financial Statements

Balance as of
December 31, 
2014

Conversion of
common units to
common 
stock

Issuance of unvested
restricted stock, 
net of forfeitures

Common stock
offering costs

Exercise of stock
options

Issuance of common
stock in exchange 
for cash

Issuance of
preferred stock, net
of 
   offering costs

Amortization of
unearned
compensation 
on share-based
awards

Reclassification of
vested 
share-based awards

Dividends declared
on preferred 
stock

Dividends and
distributions on
common 
stock and common
and incentive units

Distributions to
noncontrolling 
interests in
consolidated joint 
ventures, net of
contributions

Net income

Other
comprehensive
income— 
foreign currency 
translation
adjustments

Other
comprehensive
income— 
fair value of interest
rate swaps

Other
comprehensive
income— 
reclassification of
accumulated 
other
comprehensive loss
to 
interest expense

Balance as of
December 31, 
2015

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EQUITY
(in thousands, except share data)

Redeemable
Noncontrolling
Interests —
Operating
Partnership

Preferred
Stock

Number of
Common
Shares

Common
Stock

Additional
Paid-in
Capital

Accumulated
Dividends in
Excess of
Earnings

Accumulated
Other
Comprehensive
Income (Loss),
net

Total
Stockholders’
Equity

Noncontrolling
Interests in
Operating
Partnership

Noncontrolling
Interests in
Consolidated
Joint Ventures  

Total
Noncontrolling
Interests

Total
Equity

$

—   $ 1,048,121   135,626,255   $

1,349   $ 3,970,439   $ (1,096,607)   $

(45,046)

  $ 3,878,256

  $

29,191

  $

6,791

  $

35,982

  $ 3,914,238

—  

—  

—  

—  

—  

—  

156,008  

2  

1,841  

—  

—  

—  

72,673  

—  

29,311  

—  

—  

—  

—  

799  

896  

—  

10,500,000  

105  

675,472  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

1,843

(1,843)

—  

799

896

675,577

—  

—  

—  

—  

—  

—  

—  

—  

—  

(1,843)

—  

—  

—  

—

—

799

896

—  

675,577

—  

242,014  

—  

—  

—  

—  

—  

242,014

—  

—  

—  

242,014

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

14,375  

—  

(8,602)  

—  

—  

—  

—  

(79,423)  

—  

—  

—  

14,375

—  

(8,602)

8,602

(79,423)

—  

—  

—  

—  

—  

14,375

8,602

—

—  

(79,423)

—  

—  

—  

—  

—  

(470,748)  

—  

(470,748)

(9,793)

—  

(9,793)

(480,541)

—  
—  

—  
—  

—  
—  

—  
—  

—  
—  

—  
296,689  

—  
—  

—  

—  

296,689

4,442

(493)

460

(493)

4,902

(493)

301,591

—  

—  

—  

—  

—  

—  

(50,775)

(50,775)

(970)

—  

—  

—  

—  

—  

—  

(3,338)

(3,338)

(69)

—  

—  

(970)

(51,745)

(69)

(3,407)

—  

—  

—  

—  

—  

—  

2,569

2,569

52

—  

52

2,621

$

—   $ 1,290,135   146,384,247   $

1,456   $ 4,655,220   $ (1,350,089)   $

(96,590)

  $ 4,500,132

  $

29,612

  $

6,758

  $

36,370

  $ 4,536,502

See accompanying notes to the consolidated financial statements.

96

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

Balance as of
December 31, 
2015

Conversion of
common units to
common 
stock

Issuance of
unvested restricted
stock, 
net of forfeitures

Issuance of
common stock in
exchange for 
cash, net of offering
costs

Exercise of stock
options

Redemption of
series E preferred
stock

Preferred stock
offering costs

Amortization of
unearned
compensation 
on share-based
awards

Reclassification of
vested 
share-based awards

Dividends declared
on preferred 
stock

Dividends and
distributions on
common 
stock and common
and incentive units

Distributions to
noncontrolling
interests in 
   consolidated joint
ventures, net of 
contributions

Net income

Other
comprehensive
income— 
foreign currency 
translation
adjustments

Other
comprehensive
income— 
fair value of interest
rate swaps

Other
comprehensive
income— 
reclassification of
accumulated 
other
comprehensive loss
to 
interest expense

Balance as of
December 31, 
2016

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EQUITY (continued)
(in thousands, except share data)

Redeemable
Noncontrolling
Interests —
Operating
Partnership

Preferred
Stock

Number of
Common
Shares

Common
Stock

Additional
Paid-in
Capital

Accumulated
Dividends in
Excess of
Earnings

Accumulated
Other
Comprehensive
Income (Loss),
net

Total
Stockholders’
Equity

Noncontrolling
Interests in
Operating
Partnership

Noncontrolling
Interests in
Consolidated
Joint Ventures  

Total
Noncontrolling
Interests

Total
Equity

$

—   $ 1,290,135

  146,384,247   $

1,456   $ 4,655,220   $ (1,350,089)   $

(96,590)

  $ 4,500,132   $

29,612

  $

6,758

  $

36,370

  $ 4,536,502

—  

—  

430,493  

5  

5,237  

—  

—  

5,242  

(5,242)

—  

(5,242)

—  

—  

120,082  

—  

—  

—  

—  

—  

—  

—  

—  

—

—

—  

—  

—  

—  

—  

—  

—  

(277,172)  

(2)  

—  

—  

—  

—  

—  

—  

—  

—  

—  

12,000,000  

120  

1,085,324  

—  

33,948  

—  

1,380  

—  

—  

—  

—  

—  

—  

(10,328)  

—  

—  

—  

—  

—  

1,085,444  

1,380  

(287,500)  

(2)  

—  

—  

—  

—  

—  

24,113  

—  

(10,125)  

—  

—  

—  

24,113  

—  

—  

(10,125)  

10,125

—  

—  

(83,771)  

—  

(83,771)  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

1,085,444

1,380

(287,500)

(2)

—  

24,113

10,125

—

—  

(83,771)

—  

—  

—  

—  

—  

(529,419)  

—  

(529,419)  

(9,469)

—  

(9,469)

(538,888)

—  
—  

—  
—  

—  
—  

—  
—  

—  
—  

—  
426,187  

—  
—  

—  
426,187  

—  

5,298

(527)

367

(527)

5,665

(527)

431,852

—  

—  

—  

—  

—  

—  

(85,300)

(85,300)  

(1,321)

—  

(1,321)

(86,621)

—  

—  

—  

—  

—  

—  

41,395

41,395  

603

—  

603

41,998

—  

—  

—  

—  

—  

—  

4,890

4,890  

78

—  

78

4,968

$

—   $ 1,012,961

  159,019,118   $

1,582   $ 5,764,497   $ (1,547,420)   $

(135,605)

  $ 5,096,015   $

29,684

  $

6,598

  $

36,282

  $ 5,132,297

See accompanying notes to the consolidated financial statements.

97

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EQUITY (continued)
(in thousands, except share data)

Redeemable
Noncontrolling
Interests —
Operating
Partnership

Preferred
Stock

Number of
Common
Shares

Common
Stock

Additional
Paid-in
Capital

Accumulated
Dividends in
Excess of
Earnings

Accumulated
Other
Comprehensive
Income (Loss),
net

Total
Stockholders’
Equity

Noncontrolling
Interests in
Operating
Partnership

Noncontrolling
Interests in
Consolidated
Joint Ventures  

Total
Noncontrolling
Interests

Total
Equity

$

—   $ 1,012,961

  159,019,118   $

1,582   $ 5,764,497   $ (1,547,420)   $

(135,605)

  $

5,096,015   $

29,684

  $

6,598

  $

36,282

  $ 5,132,297

—  

—  

562,582  

6  

10,003  

—  

—  

10,009  

(10,009)

—  

(10,009)

—  

—  

249,050  

—  

—  

—  

—  

—  

—  

—  

—  

—

—

66,259

—  

43,175,629  

432  

5,247,126  

—  

—  

5,247,558  

676,566

—  

—  

—  

—  

2,375,000  

—  

17,668  

—  

71,253  

24  

—  

—  

211,873  

729  

5,143  

—  

—  

—  

—  

—  

—  

211,897  

729  

5,143  

219,250

—  

—  

—  

—  

—  

219,250  

193,540

—  

(176,191)  

—  

—  

(12,357)

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

193,540  

—  

(6,309)  

—  

(182,500)  

—  

27,981  

—  

(10,057)  

—  

—  

—  

27,981  

—  

—  

(10,057)  

10,057

—  

—  

4,166  

—  

—  

4,166  

8,191

—  

(68,802)  

—  

(68,802)  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

676,566

5,924,124

—  

—  

—  

211,897

729

5,143

—  

—  

219,250

—  

—  

—  

—  

—  

—  

—  

—  

193,540

(182,500)

—  

27,981

10,057

—

8,191

12,357

—  

(68,802)

—  

—  

—  

—  

—  

(681,280)  

—  

(681,280)  

(20,694)

—  

(20,694)

(701,974)

—  
—  

—  
—  

—  
—  

—  
—  

—  
—  

—  
248,259  

—  
—  

—  
248,259  

—  

3,770

(8,593)

4,238

(8,593)

(8,593)

8,008

256,267

—  

—  

—  

—  

—  

—  

28,272

28,272  

437

—  

437

28,709

—  

—  

—  

—  

—  

—  

(3,513)

(3,513)  

79

—  

79

(3,434)

—  

—  

—  

—  

—  

—  

2,414

2,414  

45

—  

45

2,459

Balance as of
December 31, 
2016

Conversion of
common units to
common 
stock

Issuance of
unvested restricted
stock, 
net of forfeitures

Common stock and
units issued in 
connection with
DFT merger

Issuance of
common stock, net
of 
offering costs

Exercise of stock
options

Shares issued under
employee stock 
purchase plan

Issuance of series C
preferred stock in 
connection with
DFT merger

Issuance of series J
preferred stock, net
of 
offering costs

 Redemption of
series F preferred
stock

Amortization of
unearned
compensation 
on share-based
awards

Reclassification of
vested 
share-based awards

Adjustment to
redeemable
noncontrolling 
interests—operating
partnership

Dividends declared
on preferred 
stock

Dividends and
distributions on
common 
stock and common
and incentive units

Distributions to
noncontrolling
interests in 
   consolidated joint
ventures, net of 
contributions

Net income

Other
comprehensive
income— 
foreign currency 
translation
adjustments

Other
comprehensive
income— 
fair value of interest
rate swaps and 
foreign currency
hedges

Other
comprehensive
income— 
reclassification of
accumulated 
other
comprehensive loss
to 
interest expense

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance as of
December 31, 
2017

$

53,902

  $ 1,249,560

  205,470,300   $

2,044   $ 11,261,461   $ (2,055,552)   $

(108,432)

  $ 10,349,081   $

698,126

  $

2,243

  $

700,369

  $ 11,049,450

98

Table of Contents

Index to Financial Statements

See accompanying notes to the consolidated financial statements.

99

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Cash flows from operating activities:

Net income

Adjustments to reconcile net income to net cash provided by operating activities:

Gain on sale of properties

Gain on lease termination

Impairment of investments in real estate

Equity in earnings of unconsolidated joint ventures

Change in fair value of accrued contingent consideration

Distributions from unconsolidated joint ventures

Write-off of net assets due to early lease terminations

Gain on settlement of pre-existing relationships with Telx

Depreciation and amortization of buildings and improvements, tenant
   improvements and acquired ground leases

Amortization of acquired in-place lease value and deferred leasing costs

Amortization of share-based unearned compensation

Non-cash amortization of terminated swaps

(Recovery of) allowance for doubtful accounts

Amortization of deferred financing costs

(Gain) loss on early extinguishment of debt

Amortization of debt discount/premium

Amortization of acquired above-market leases and acquired below-market leases

Changes in assets and liabilities, net of impact of Telx acquisition and 
European portfolio acquisition

Accounts and other receivables

Deferred rent

Deferred leasing costs

Other assets

Accounts payable and other accrued liabilities

Security deposits and prepaid rents

Net cash provided by operating activities

Cash flows from investing activities:

Telx acquisition, net of cash acquired

Cash assumed in DFT merger

Acquisitions of real estate, net of cash acquired

Proceeds from sale of assets, net of sales costs

Distribution of debt proceeds from closing of joint venture

Investments in unconsolidated joint ventures

Excess proceeds from forward contract settlement

Receipt of value added tax refund

Refundable value added tax paid

Year Ended December 31,

2017

2016

2015

$

256,267   $

431,852   $

301,591

(40,354)  

—  

28,992  

(25,516)  

—  

31,747  

3,076  

—  

594,996  

247,468  

20,521  

1,204  

(776)  

10,634  

(1,990)  

2,992  

1,770  

(73,717)  

(16,564)  

(15,363)  

(1,800)  

(16,384)  

16,102  

1,023,305  

—  

20,650  

(415,764)  

89,333  

135,793  

(93,405)  

63,956  

—  

—  

(169,902)  

(29,205)  

—  

(17,104)  

—  

16,755  

213  

—  

518,716  

180,608  

17,433  

—  

1,602  

9,908  

1,011  

2,616  

(8,351)  

(13,754)  

(24,401)  

60  

(69,924)  

38,432  

24,677  

911,242  

—  

—  

(873,285)  

359,319  

—  

—  

—  

11,624  

(43,719)  

(94,604)

—

—

(15,491)

(44,276)

14,947

75,263

(14,355)

464,694

105,833

6,360

—

(458)

8,481

148

2,032

(9,336)

(10,127)

(48,404)

(11,688)

(2,928)

36,113

33,045

796,840

(1,850,061)

—

(99,247)

185,565

—

(10,797)

—

17,570

(30,322)

See accompanying notes to the consolidated financial statements.

100

 
 
 
 
 
   
   
 
   
   
 
   
   
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)
(in thousands)

Improvements to and advances for investments in real estate

Improvement advances to tenants

Collection of advances from tenants for improvements

Net cash used in investing activities

Cash flows from financing activities:

Borrowings on global revolving credit facility

Repayments on global revolving credit facility

Borrowings on unsecured term loans

Repayments on unsecured term loans

Borrowings on unsecured senior notes

Principal payments on unsecured senior notes

Repayments on other secured loans

Borrowings on mortgage loans

Principal payments on mortgage loans

Earnout payments related to acquisitions

Payment of loan fees and costs

Capital distributions to noncontrolling interests in consolidated joint ventures

Proceeds from common and preferred stock offerings, net

Proceeds from equity plans

Redemption of preferred stock

Payment of dividends to preferred stockholders

Payment of dividends to common stockholders and distributions to noncontrolling interests in operating
partnership

Net cash provided by financing activities

Net (decrease) increase in cash, cash equivalents and restricted cash

Effect of exchange rate changes on cash, cash equivalents and restricted cash

Cash, cash equivalents and restricted cash at beginning of period

Cash, cash equivalents and restricted cash at end of period

Year Ended December 31,

2017

2016

2015

(1,150,619)  

(50,857)  

43,760  

(758,081)  

(16,239)  

16,784  

(737,180)

(40,553)

37,524

(1,357,153)  

(1,303,597)  

(2,527,501)

$

2,180,556   $

2,533,507   $

(2,304,686)  

(3,283,087)  

—  

(371,520)  

2,265,060  

(884,841)  

(50,000)  

104,000  

(105,546)  

—  

(16,830)  

(8,593)  

405,437  

5,872  

(182,500)  

(68,802)  

(646,407)  

321,200  

(12,648)  

3,793  

22,036  

766,201  

(170,736)  

675,591  

—  

(25,000)  

—  

(299,826)  

(23,213)  

(19,574)  

(527)  

1,085,442  

4,729  

(287,500)  

(83,771)  

(521,619)  

350,617  

(41,738)  

(11,288)  

75,062  

$

13,181   $

22,036   $

2,436,032

(1,958,025)

—

—

1,445,127

(374,927)

(67,000)

—

(75,492)

(12,985)

(13,488)

(493)

918,944

896

—

(79,423)

(468,635)

1,750,531

19,870

2,316

52,876

75,062

See accompanying notes to the consolidated financial statements.

101

 
 
 
 
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)
(in thousands)

Supplemental disclosure of cash flow information:

Cash paid for interest, net of amounts capitalized

Cash paid for income taxes

Supplementary disclosure of noncash investing and financing activities:

Change in net assets related to foreign currency translation adjustments

Accrual of dividends and distributions

(Decrease) increase in accounts payable and other accrued liabilities 
related to change in fair value of interest rate swaps

Noncontrolling interests in operating partnership redeemed for
   or converted to shares of common stock

Accrual for additions to investments in real estate and tenant improvement
   advances included in accounts payable and accrued expenses

Accrual for potential earnout contingency

Note receivable related to sale of property

Assumption of capital lease obligations upon acquisition

Allocation of purchase price of real estate/investment in partnership to:

Investments in real estate

Accounts receivable

Goodwill

Acquired above-market leases

Acquired in-place lease value and deferred leasing costs

Other assets

Capital lease obligations

Acquired below-market leases

Accounts payables and other accrued liabilities

Security deposits and prepaid rents

Cash paid for acquisition of real estate

Contribution of assets and liabilities to unconsolidated joint venture:

  Investments in real estate

  Other assets

  Other liabilities

Assets and liabilities assumed in DFT merger:

  Cash

  Land

  Buildings and improvements

  Accounts and other receivables

  Acquired above-market leases

  Tenant relationship and acquired in-place lease value

102

Year Ended December 31,

2017

2016

2015

$

$

211,549   $

216,713   $

9,456  

3,698  

28,709   $

199,761  

(86,621)   $

144,194  

(3,434)  

41,998  

10,009  

5,242  

149,548  

128,531  

—  

—  

—  

—  

—  

118,923  

180,141

3,122

(51,745)

126,925

(3,407)

1,843

109,394

19,364

9,000

63,692

$

366,105   $

378,431   $

99,247

—  

—  

21,043  

30,111  

—  

—  

(1,495)  

—  

—  

8,537  

448,123  

—  

226,877  

9,011  

(118,923)  

(922)  

(69,084)  

(8,765)  

—

—

—

—

—

—

—

—

—

415,764   $

873,285   $

99,247

119,106   $

16,700  

(31,634)  

—   $

—  

—  

20,650   $

—   $

312,579  

3,677,497  

10,978  

162,333  

1,582,385  

—  

—  

—  

—  

—  

—

—

—

—

—

—

—

—

—

$

$

$

 
 
 
 
 
   
   
 
   
   
 
   
   
 
 
   
   
 
   
   
 
 
   
   
 
   
   
Table of Contents

Index to Financial Statements

  Goodwill

  Revolving credit facility

  Unsecured term loan

  Unsecured notes

  Mortgage notes payable and unsecured debt

  Accounts payable and other accrued liabilities

  Acquired below-market leases

  Other working capital, net

  Redeemable noncontrolling interests -- operating partnership

  Common stock issued in connection with merger

  Noncontrolling interests in operating partnership

  Issuance of preferred stock in connection with merger

Year Ended December 31,

2017

2016

2015

2,592,181  

(450,697)  

(250,000)  

(886,831)  

(105,000)  

(248,259)  

(185,543)  

(22,640)  

(66,259)  

(5,247,558)  

(676,566)  

(219,250)  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—

—

—

—

—

—

—

—

—

—

—

—

See accompanying notes to the consolidated financial statements.

103

 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS
(in thousands, except unit data)

ASSETS

Investments in real estate:

Properties:

Land

Acquired ground leases

Buildings and improvements

Tenant improvements

Total investments in properties

Accumulated depreciation and amortization

Net investments in properties

Investments in unconsolidated joint ventures

Net investments in real estate

Cash and cash equivalents

Accounts and other receivables, net of allowance for doubtful accounts of $6,737 and $7,446 
   as of December 31, 2017 and December 31, 2016, respectively

Deferred rent

Acquired above-market leases, net of accumulated amortization of $110,139 and $87,961 
as of December 31, 2017 and December 31, 2016, respectively

Goodwill

Acquired in-place lease value, deferred leasing costs and intangibles, 
net of accumulated amortization of $1,016,989 and $772,443 
as of December 31, 2017 and December 31, 2016, respectively

Restricted cash

Assets held for sale

Other assets

Total assets

LIABILITIES AND CAPITAL

Global revolving credit facility

Unsecured term loans

Unsecured senior notes, net of discount

Mortgage loans, including premiums

Accounts payable and other accrued liabilities

Accrued dividends and distributions

Acquired below-market leases, net of accumulated amortization of $219,654 and $202,000 
as of December 31, 2017 and December 31, 2016, respectively

Security deposits and prepaid rents

Obligations associated with assets held for sale

Total liabilities

104

December 31, 2017

  December 31, 2016

$

1,136,341   $

11,150  

746,822

11,335

15,215,405  

10,267,525

553,040  

16,915,936  

(3,238,227)  

13,677,709  

163,477  

13,841,186  

51  

276,347  

430,026  

184,375  

3,389,595  

532,787

11,558,469

(2,668,509)

8,889,960

106,402

8,996,362

10,528

203,938

412,269

22,181

752,970

2,998,806  

1,522,378

13,130  

139,538  

131,291  

11,508

56,097

204,354

21,404,345   $

12,192,585

550,946   $

1,420,333  

6,570,757  

106,582  

980,218  

199,761  

249,465  

217,898  

5,033  

199,209

1,482,361

4,153,797

3,240

824,878

144,194

81,899

168,111

2,599

10,300,993  

7,060,288

$

$

 
 
 
   
 
   
 
   
 
   
Table of Contents

Index to Financial Statements

Redeemable limited partner common units

Commitments and contingencies

Capital:

Partners’ capital:

General Partner:

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (continued)
(in thousands, except unit data)

December 31, 2017

  December 31, 2016
—

53,902  

Preferred units, 50,650,000 and 41,900,000 units issued and outstanding as of December 31, 2017
and December 31, 2016, respectively

Common units, 205,470,300 and 159,019,118 units issued and outstanding as of December 31,
2017 and December 31, 2016, respectively

Limited Partners, 8,489,095 and 2,475,663 units outstanding as of 
December 31, 2017 and December 31, 2016, respectively

Accumulated other comprehensive loss

Total partners’ capital

Noncontrolling interests in consolidated joint ventures

Total capital

Total liabilities and capital

1,249,560  

1,012,961

9,207,953  

4,218,659

702,579  

(112,885)  

11,047,207  

2,243  

34,698

(140,619)

5,125,699

6,598

11,049,450  

5,132,297

$

21,404,345   $

12,192,585

See accompanying notes to the consolidated financial statements.

105

 
 
 
   
 
   
 
   
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED INCOME STATEMENTS
(in thousands, except unit and per unit data)

Table of Contents

Index to Financial Statements

Operating Revenues:

Rental

Tenant reimbursements

Interconnection and other

Fee income

Other

Total operating revenues

Operating Expenses:

Rental property operating and maintenance

Property taxes

Insurance

Change in fair value of contingent consideration

Depreciation and amortization

General and administrative

Transaction and integration expenses

Impairment of investments in real estate

Other

Total operating expenses

Operating income

Other Income (Expenses):

Equity in earnings of unconsolidated joint ventures

Gain on sale of property

Interest and other income

Interest expense

Tax expense

Gain (loss) from early extinguishment of debt

Net income

Net loss attributable to noncontrolling interests in consolidated joint ventures

Net income attributable to Digital Realty Trust, L.P.

Preferred units distributions

Issuance costs associated with redeemed preferred units

Net income available to common unitholders

Net income per unit available to common unitholders:

Basic

Diluted

Weighted average common units outstanding:

Basic

Diluted

See accompanying notes to the consolidated financial statements.

106

Year Ended December 31,

2017

2016

2015

$

1,774,649   $

1,542,511   $

1,354,986

440,224  

235,652  

6,372  

1,031  

355,903  

204,317  

6,285  

33,197  

359,875

40,759

6,638

1,078

2,457,928  

2,142,213  

1,763,336

759,616  

124,014  

10,981  

—  

842,464  

161,441  

76,048  

28,992  

3,077  

660,177  

102,497  

9,492  

—  

699,324  

152,733  

20,491  

—  

213  

549,885

92,588

8,809

(44,276)

570,527

105,549

17,400

—

60,943

2,006,633  

451,295  

1,644,927  

497,286  

1,361,425

401,911

25,516  

40,354  

3,655  

(258,642)  

(7,901)  

1,990  

256,267  

(4,238)  

252,029  

(68,802)  

(6,309)  

17,104  

169,902  

(4,564)  

(236,480)  

(10,385)  

(1,011)  

431,852  

(367)  

431,485  

(83,771)  

(10,328)  

176,918   $

337,386   $

15,491

94,604

(2,381)

(202,800)

(6,451)

(148)

300,226

(460)

299,766

(79,423)

—

220,343

0.99   $
0.99   $

2.21   $
2.20   $

1.56

1.55

178,055,936  

152,359,680  

178,891,648  

153,085,706  

140,905,897

141,523,712

$

$

$

 
 
 
 
 
   
   
 
   
   
 
   
   
 
   
   
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in thousands)

Net income

Other comprehensive income:

Foreign currency translation adjustments

Increase (decrease) in fair value of interest rate swaps and 
foreign currency hedges

Reclassification to interest expense from interest rate swaps

Comprehensive income

Comprehensive income attributable to noncontrolling interests in consolidated joint
ventures

Comprehensive income attributable to Digital Realty Trust, L.P.

Year Ended December 31,

2017

2016

2015

256,267   $

431,852   $

300,226

28,709  

(86,621)  

(51,745)

(3,434)  

2,459  

41,998  

4,968  

(3,407)

2,621

284,001   $

392,197   $

247,695

(4,238)  

(367)  

279,763   $

391,830   $

(460)

247,235

$

$

$

See accompanying notes to the consolidated financial statements.

107

 
 
 
 
 
   
   
Table of Contents

Index to Financial Statements

Redeemable L
imited Partner
Common Units

Balance as of December 31, 2014

$

—   43,400,000

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CAPITAL
(in thousands, except unit data)

General Partner

Limited Partners

Preferred Units

Common Units

Common Units

Units

Amount
  $ 1,048,121

Units
  135,626,255

Amount
  $ 2,875,181

Units
  3,013,661

  Amount
  $

32,578

Accumulated
Other
Comprehensive
Income (Loss)

Noncontrolling
Interests in
Consolidated 
Joint Ventures

  $

(48,433)

  $

6,791

  Total Capital
  $ 3,914,238

Conversion of limited partner common 
   units to general partner common units

Issuance of unvested restricted common units, net 
   of forfeitures

Common unit offering costs

Issuance of common units in connection 
   with the exercise of stock options

Issuance of common units, net of forfeitures

Issuance of common units

Net proceeds from issuance of 
   preferred units

Amortization of unearned compensation on share-
based awards

Reclassification of vested share-based awards

Distributions

Distributions to noncontrolling interests in 
    consolidated joint ventures, net of contributions

Net income

Other comprehensive loss - foreign currency 
   translation adjustments

Other comprehensive loss - fair value of 
   interest rate swaps

Other comprehensive income - reclassification 
   of accumulated other comprehensive loss to 
   interest expense

Balance as of December 31, 2015

$

—  

—  
—  

—  
—  
—  

—  

—  
—  

—  
—  
—  

—  

—  
—  

—  
—  
—  

—   10,000,000

242,014

—  
—  
—  

—  
—  

—  

—  

—  
—  
—  

—  
—  

—  

—  

—  
—   53,400,000

—  

—  
—  

(79,423)

—  

79,423

—  

—  

—  

156,008

1,843

(156,008)

(1,843)

72,673

—  

29,311

—  

—  

799

896
—  

—  
—  

—  

(24,327)

10,500,000

675,577

—  

—  
—  
—  

—  
—  

—  

—  

—  

—  

14,375

(8,602)

(470,748)

—  

215,901

—  

—  

—  

—  

—  

—  
—  
—  

—  
—  

—  

—  

—  

—  
—  

—  
—  
—  

—  

—  

8,602

(9,793)

—  

4,442

—  

—  

—  

—  

—  
—  

—  
—  
—  

—  

—  
—  
—  

—  
—  

(51,745)

(3,407)

2,621

See accompanying notes to the consolidated financial statements.

108

  $ 1,290,135

  146,384,247

  $ 3,305,222

  2,833,326

  $

33,986

  $

(100,964)

  $

6,758

—  

—  
—  

—  
—  
—  

—  

—  
—  
—  

(493)

460

—  

—  

—

—

799

896

—

675,577

242,014

14,375

—

(559,964)

(493)

300,226

(51,745)

(3,407)

—  

2,621
  $ 4,535,137

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CAPITAL (continued)
(in thousands, except unit data)

Balance as of December 31, 2015

$

—   53,400,000

Redeemable
Limited Partner
Common Units

General Partner

Limited Partners

Preferred Units

Common Units

Common Units

Units

Amount
  $ 1,290,135

Units
  146,384,247

Amount
  $ 3,305,222

Units
  2,833,326

  Amount
  $

33,986

Accumulated
Other
Comprehensive
Income (Loss)

Noncontrolling
Interests in
Consolidated 
Joint Ventures

  $

(100,964)

  $

6,758

  Total Capital
  $ 4,535,137

Conversion of limited partner common 
   units to general partner common units

Issuance of unvested restricted common units, net 
   of forfeitures

Issuance of common units, net of offering costs

Issuance of common units in connection 
   with the exercise of stock options

Issuance of common units, net of forfeitures

Preferred unit offering costs

Units issued in connection with employee stock
purchase plan

Redemption of series E preferred units

Amortization of unearned compensation on share-
based awards

Reclassification of vested share-based awards

Distributions

Distributions to noncontrolling interests in 
    consolidated joint ventures, net of contributions

Net income

Other comprehensive loss - foreign currency 
   translation adjustments

Other comprehensive loss - fair value of interest rate
swaps and 
   foreign currency hedges

Other comprehensive income - reclassification 
   of accumulated other comprehensive loss to 
   interest expense

Balance as of December 31, 2016

$

—  

—  
—  

—  
—  
—  

—  

—  
—  

—  
—  
—  

—  
—   (11,500,000)

—  

—  
—  
—  

—  
—  

—  

—  

—  
—  
—  

—  
—  

—  

—  

—  
—   41,900,000

—  

—  

—  
—  

—  
—  

(2)

—  

(277,172)

—  
—  

(83,771)

—  

83,771

—  

—  

—  

430,493

5,242

(430,493)

(5,242)

120,082

—  

12,000,000

1,085,444

33,948

1,380

—  
—  

—  
—  

50,348

3,349

—  

—  
—  
—  

—  
—  

—  

—  

—  

(10,328)

24,113

(10,125)

(528,054)

—  

342,416

—  

—  

—  

—  
—  

—  

72,830

—  

—  
—  

—  
—  
—  

—  
—  

—  

—  

—  

—  
—  

—  
—  
—  

—  
—  

—  

10,125

(9,469)

—  

5,298

—  

—  

—  

—  

—  
—  

—  
—  
—  

—  
—  

—  
—  
—  

—  
—  

(86,621)

41,998

4,968

See accompanying notes to the consolidated financial statements.

109

  $ 1,012,961

  159,019,118

  $ 4,218,659

  2,475,663

  $

34,698

  $

(140,619)

  $

6,598

—  

—  
—  

—  
—  
—  

—  
—  

—  
—  
—  

(527)

367

—  

—  

—

—

1,085,444

1,380

—

(2)

3,349

(287,500)

24,113

—

(621,294)

(527)

431,852

(86,621)

41,998

—  

4,968
  $ 5,132,297

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CAPITAL (continued)
(in thousands, except unit data)

Balance as of December 31, 2016

$

—   41,900,000

Redeemable
Limited
Partner
Common
Units

General Partner

Limited Partners

Preferred Units

Common Units

Common Units

Units

Amount
  $ 1,012,961

Units
  159,019,118

Amount
  $ 4,218,659

Units
  2,475,663

  Amount
  $

34,698

Accumulated
Other
Comprehensive
Income (Loss)

Noncontrolling
Interests in
Consolidated
Joint Ventures

  $

(140,619)

  $

6,598

  Total Capital
  $ 5,132,297

Conversion of limited partner common 
   units to general partner common units

Issuance of unvested restricted common units, net 
   of forfeitures

Issuance of common units in connection with DFT
merger

Issuance of common units, net of offering costs

Issuance of common units in connection 
   with the exercise of stock options

Issuance of common units, net of forfeitures

Units issued in connection with employee stock purchase
plan

Issuance of series C preferred units in connection with 
DFT merger

Issuance of series J preferred units, net of offering costs

Redemption of series F preferred units

Amortization of unearned compensation on share-based
awards

Reclassification of vested share-based awards

—  

—  

66,259

—  

—  
—  

—  

—  
—  
—  

—  
—  

Adjustment to redeemable common units

(12,357)

Distributions

Distributions to noncontrolling interests in 
    consolidated joint ventures, net of contributions

Net income

Other comprehensive income - foreign currency 
   translation adjustments

Other comprehensive loss - fair value of interest rate
swaps and 
   foreign currency hedges

Other comprehensive income - reclassification 
   of accumulated other comprehensive loss to 
   interest expense

Balance as of December 31, 2017

—  

—  

—  
—  

—  
—  

—  

—  

—  

—  
—  

—  
—  

—  

8,050,000

219,250

8,000,000

193,540

(7,300,000)

(176,191)

—  
—  
—  
—  

—  
—  

—  

—  

—  

—  
—  
—  

(68,802)

—  

68,802

—  

—  

—  

—  

—  
—  

—  

—  

—  

562,582

10,009

(562,582)

(10,009)

249,050

—  

—  

—  

43,175,629

5,247,558

  6,111,770

676,566

—  

—  
—  

—  

—  
—  
—  

—  

10,057

8,191

(20,694)

—   

3,770

2,375,000

211,897

17,668

—   

729
—  

71,253

5,143

—  
—  
—  

—  
—  
—  
—  

—  
—  

—  

—  

—  

—  
—  

(6,309)

27,981

(10,057)

4,166

(681,280)

—  

179,457

—  

—  

—  

—  

—  

464,244

—  

—  
—  
—  

—  
—  
—  
—  

—  
—  

—  

—  

—  

—   

28,709

—   

(3,434)

—   

2,459

—  

—  

—  
—  

—  
—  

—  

—  
—  
—  

—  

—   
—  

—   

—   

—   

—  

—  

—  
—  

—  
—  

—  

—  
—  
—  

—  
—  
—  
—  

(8,593)

4,238

—  

—  

—

—

5,924,124

211,897

729

—

5,143

219,250

193,540

(182,500)

27,981

—

12,357

(770,776)

(8,593)

256,267

28,709

(3,434)

—  

2,459
  $ 11,049,450

$

53,902

  50,650,000

  $ 1,249,560

  205,470,300

  $ 9,207,953

  8,489,095

  $ 702,579

  $

(112,885)

  $

2,243

See accompanying notes to the consolidated financial statements.

110

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
  
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

Cash flows from operating activities:

Net income

Adjustments to reconcile net income to net cash provided by operating activities:

Gain on sale of properties

Gain on lease termination

Impairment of investments in real estate

Equity in earnings of unconsolidated joint ventures

Change in fair value of accrued contingent consideration

Distributions from unconsolidated joint ventures

Write-off of net assets due to early lease terminations

Gain on settlement of pre-existing relationships with Telx

Depreciation and amortization of buildings and improvements, tenant improvements
    and acquired ground leases

Amortization of acquired in-place lease value and deferred leasing costs

Amortization of share-based unearned compensation

Non-cash amortization of terminated swaps

(Recovery of) allowance for doubtful accounts

Amortization of deferred financing costs

(Gain) loss on early extinguishment of debt

Amortization of debt discount/premium

Amortization of acquired above-market leases and acquired below-market leases

Changes in assets and liabilities, net of impact of Telx acquisition and 
European portfolio acquisition

Accounts and other receivables

Deferred rent

Deferred leasing costs

Other assets

Accounts payable and other accrued liabilities

Security deposits and prepaid rents

Net cash provided by operating activities

Cash flows from investing activities:

Telx acquisition, net of cash acquired

Cash assumed in DFT merger

Acquisitions of real estate, net of cash acquired

Proceeds from sale of assets, net of sales costs

Distribution of debt proceeds from closing of joint venture

Investments in unconsolidated joint ventures

Excess proceeds from forward contract settlement

Receipt of value added tax refund

Refundable value added tax paid

Improvements to and advances for investments in real estate

Improvement advances to tenants

Collection of advances from tenants for improvements

Net cash used in investing activities

Year Ended December 31,

2017

2016

2015

$

256,267   $

431,852   $

300,226

(40,354)  

—  

28,992  

(25,516)  

—  

31,747  

3,076  

—  

594,996  

247,468  

20,521  

1,204  

(776)  

10,634  

(1,990)  

2,992  

1,770  

(73,717)  

(16,564)  

(15,363)  

(1,800)  

(16,384)  

16,102  

1,023,305  

—  

20,650  

(415,764)  

89,333  

135,793  

(93,405)  

63,956  

—  

—  

(1,150,619)  

(50,857)  

43,760  

(169,902)  

(29,205)  

—  

(17,104)  

—  

16,755  

213  

—  

518,716  

180,608  

17,433  

—  

1,602  

9,908  

1,011  

2,616  

(8,351)  

(13,754)  

(24,401)  

60  

(69,924)  

38,432  

24,677  

911,242  

—  

—  

(873,285)  

359,319  

—  

—  

—  

11,624  

(43,719)  

(758,081)  

(16,239)  

16,784  

(94,604)

—

—

(15,491)

(44,276)

14,947

75,263

(14,355)

464,694

105,833

6,360

—

(458)

8,481

148

2,032

(9,336)

(10,127)

(48,404)

(11,688)

(2,928)

37,478

33,045

796,840

(1,850,061)

—

(99,247)

185,565

—

(10,797)

—

17,570

(30,322)

(737,180)

(40,553)

37,524

(1,357,153)  

(1,303,597)  

(2,527,501)

 
 
 
 
 
   
   
 
   
   
 
   
   
 
   
   
111

Table of Contents

Index to Financial Statements

Cash flows from financing activities:

Borrowings on global revolving credit facility

Repayments on global revolving credit facility

Borrowings on unsecured term loans

Repayments on unsecured term loans

Borrowings on unsecured senior notes

Principal payments on unsecured senior notes

Repayments on other secured loans

Borrowings on mortgage loans

Principal payments on mortgage loans

Earnout payments related to acquisitions

Payment of loan fees and costs

Capital distributions to noncontrolling interests in consolidated joint ventures

General partner contributions

Payment of distributions to preferred unitholders

Payment of distributions to common unitholders

Net cash provided by financing activities

Net (decrease) increase in cash, cash equivalents and restricted cash

Effect of exchange rate changes on cash, cash equivalents and restricted cash

Cash, cash equivalents and restricted cash at beginning of period

Cash, cash equivalents and restricted cash at end of period

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)
(in thousands)

Year Ended December 31,

2017

2016

2015

$

2,180,556   $

2,533,507   $

(2,304,686)  

(3,283,087)  

—  

(371,520)  

2,265,060  

(884,841)  

(50,000)  

104,000  

(105,546)  

—  

(16,830)  

(8,593)  

228,809  

(68,802)  

(646,407)  

321,200  

(12,648)  

3,793  

22,036  

766,201  

(170,736)  

675,591  

—  

(25,000)  

—  

(299,826)  

(23,213)  

(19,574)  

(527)  

802,671  

(83,771)  

(521,619)  

350,617  

(41,738)  

(11,288)  

75,062  

$

13,181   $

22,036   $

112

2,436,032

(1,958,025)

—

—

1,445,127

(374,927)

(67,000)

—

(75,492)

(12,985)

(13,488)

(493)

919,840

(79,423)

(468,635)

1,750,531

19,870

2,316

52,876

75,062

 
 
 
 
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)
(in thousands)

Supplemental disclosure of cash flow information:

Cash paid for interest, net of amounts capitalized

Cash paid for income taxes

Supplementary disclosure of noncash investing and financing activities:

Change in net assets related to foreign currency translation adjustments

Accrual of distributions

(Decrease) increase in accounts payable and other accrued liabilities related
   to change in fair value of interest rate swaps

Accrual for additions to investments in real estate and tenant improvement
   advances included in accounts payable and accrued expenses

Accrual for potential earnout contingency

Assumption of capital lease obligations upon acquisition

Note receivable related to sale of property

Allocation of purchase price of real estate/investment in partnership to:

Investments in real estate

Accounts receivable

Goodwill

Acquired above-market leases

Acquired in-place lease value and deferred leasing costs

Other assets

Capital lease obligations

Acquired below-market leases

Accounts payables and other accrued liabilities

Security deposits and prepaid rents

Cash paid for acquisition of real estate

Contribution of assets and liabilities to unconsolidated joint venture:

  Investments in real estate

  Other assets

  Other liabilities

Assets and liabilities assumed in DFT merger:

  Cash

  Land

  Buildings and improvements

  Accounts and other receivables

  Acquired above-market leases

  Tenant relationship and acquired in-place lease value

  Goodwill

113

Year Ended December 31,

2017

2016

2015

$

$

211,549   $

216,713   $

9,456  

3,698  

28,709   $

199,761  

(86,621)   $

144,194  

180,141

3,122

(51,745)

126,925

(3,434)  

41,998  

(3,407)

149,548  

—  

—  

—  

128,531  

—  

118,923  

—  

109,394

19,364

63,692

9,000

$

366,105   $

378,431   $

99,247

—  

—  

21,043  

30,111  

—  

—  

(1,495)  

—  

—  

8,537  

448,123  

—  

226,877  

9,011  

(118,923)  

(922)  

(69,084)  

(8,765)  

—

—

—

—

—

—

—

—

—

415,764   $

873,285   $

99,247

119,106   $

16,700  

(31,634)  

20,650   $

312,579   $

3,677,497   $

10,978   $

162,333   $

1,582,385   $

2,592,181   $

—   $

—  

—  

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—

—

—

—

—

—

—

—

—

—

$

$

$

$

$

$

$

$

$

 
 
 
 
 
 
   
   
 
   
   
 
   
   
 
 
   
   
 
   
   
 
 
   
   
 
   
   
Table of Contents

Index to Financial Statements

  Revolving credit facility

  Unsecured term loan

  Unsecured notes

  Mortgage notes payable and unsecured debt

  Accounts payable and other accrued liabilities

  Acquired below-market leases

  Other working capital, net

  Redeemable noncontrolling interests -- operating partnership

  Common units issued to general partner in connection with merger

  Common units issued to limited partners in connection with merger

  Issuance of preferred units in connection with merger

Year Ended December 31,

2017

2016

2015

$

$

$

$

$

$

$

$

$

$

$

(450,697)   $

(250,000)   $

(886,831)   $

(105,000)   $

(248,259)   $

(185,543)   $

(22,640)   $

(66,259)   $

(5,247,558)   $

(676,566)   $

(219,250)   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—   $

—

—

—

—

—

—

—

—

—

—

—

See accompanying notes to the consolidated financial statements.

114

 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
December 31, 2017 and 2016

1. Organization and Description of Business

Digital Realty Trust, Inc. through its controlling interest in Digital Realty Trust, L.P. (the Operating Partnership) and the subsidiaries of the Operating

Partnership (collectively, we, our, us or the Company) is a leading global provider of data center, colocation and interconnection solutions for customers across a
variety of industry verticals ranging from cloud and information technology services, communications and social networking to financial services, manufacturing,
energy, healthcare, and consumer products. The Operating Partnership, a Maryland limited partnership, is the entity through which Digital Realty Trust, Inc., a
Maryland corporation, conducts its business of owning, acquiring, developing and operating data centers.  Digital Realty Trust, Inc. operates as a REIT for federal
income tax purposes. A summary of our data center portfolio as of December 31, 2017 and 2016 is as follows:

Region

Operating

Held for Sale

Unconsolidated Joint
Ventures

Total

  Operating Held for Sale

Unconsolidated
Joint Ventures

Total

As of December 31, 2017

As of December 31, 2016

Data Centers

United States

Europe

Asia

Australia

Canada

Total

(1

)

131

38  

3  

5  
(1

)

3

180  

7

—

—

—

—

7

14

—

4

—

—

18

152  

38  

7  

5  

3  

123

37

3

4

2

205  

169

3

—

—

—

—

3

14

—

1

—

—

15

140

37

4

4

2

187

(1)

Includes 15 data centers acquired as part of the merger with DuPont Fabros Technology, Inc., of which 14 are located in the United States and one is located in
Canada.

We are diversified in major metropolitan areas where data center and technology customers are concentrated, including the Atlanta, Boston, Chicago, Dallas,

Los Angeles, New York, Northern Virginia, Phoenix, San Francisco, Seattle, Silicon Valley and Toronto metropolitan areas in North America, the Amsterdam,
Dublin, Frankfurt, London and Paris metropolitan areas in Europe and the Hong Kong, Melbourne, Osaka, Singapore, Sydney, and Tokyo metropolitan areas in the
Asia Pacific region. The portfolio consists of data centers, Internet gateway data centers and office and other non-data center space.

The Operating Partnership was formed on July 21, 2004 in anticipation of Digital Realty Trust, Inc.’s initial public offering (IPO) on November 3, 2004 and

commenced operations on that date. As of December 31, 2017 , Digital Realty Trust, Inc. owns a 96.0% common interest and a 100.0% preferred interest in the
Operating Partnership. As of December 31, 2016, Digital Realty Trust, Inc. owned a 98.5% common interest and a 100.0% preferred interest in the Operating
Partnership. As sole general partner of the Operating Partnership, Digital Realty Trust, Inc. has the full, exclusive and complete responsibility for the Operating
Partnership’s day-to-day management and control. The limited partners of the Operating Partnership do not have rights to replace Digital Realty Trust, Inc. as the
general partner nor do they have participating rights, although they do have certain protective rights.

In connection with the closing of the DFT Merger, (i) each share of DFT's common stock was converted into the right to receive  0.545  shares of Digital
Realty Trust, Inc. common stock, (ii) each common unit of partnership interests in the DFT Operating Partnership was converted into the right to receive  0.545
 common units in the Operating Partnership, except to the extent that a unit holder elected to redeem his or her units and receive  0.545  shares of Digital Realty
Trust, Inc. common stock for each such redeemed unit; and (iii) each share of DFT's  6.625% Series C Cumulative Redeemable Perpetual Preferred Stock was
converted into the right to receive one share of a newly designated class of preferred stock of Digital Realty Trust, Inc's. 6.625% Series C Cumulative Redeemable
Perpetual Preferred Stock, with substantially similar rights, privileges, preferences and interests as DFT's  6.625%  Series C Preferred Stock.

115

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

2. Summary of Significant Accounting Policies

(a)
Principles
of
Consolidation
and
Basis
of
Presentation

The accompanying consolidated financial statements include all of the accounts of Digital Realty Trust, Inc., the Operating Partnership and the subsidiaries

of the Operating Partnership. Intercompany balances and transactions have been eliminated.

The notes to the consolidated financial statements of Digital Realty Trust, Inc. and the Operating Partnership have been combined to provide the following

benefits:

•

•

•

enhancing investors’ understanding of the Company and the Operating Partnership by enabling investors to view the business as a whole in the same
manner as management views and operates the business;
eliminating duplicative disclosure and providing a more streamlined and readable presentation since a substantial portion of the disclosure applies to
both the Company and the Operating Partnership; and
creating time and cost efficiencies through the preparation of one set of notes instead of two separate sets of notes.

There are few differences between the Company and the Operating Partnership, which are reflected in these consolidated financial statements. We believe it

is important to understand the differences between the Company and the Operating Partnership in the context of how we operate as an interrelated consolidated
company. Digital Realty Trust, Inc.’s only material asset is its ownership of partnership interests of the Operating Partnership. As a result, Digital Realty Trust, Inc.
generally does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing public securities from time to time and
guaranteeing certain unsecured debt of the Operating Partnership and certain of its subsidiaries and affiliates. Digital Realty Trust, Inc. itself has not issued any
indebtedness but guarantees the unsecured debt of the Operating Partnership and certain of its subsidiaries and affiliates, as disclosed in these notes.

The Operating Partnership holds substantially all the assets of the Company and holds the ownership interests in the Company’s joint ventures. The

Operating Partnership conducts the operations of the business and is structured as a partnership with no publicly traded equity. Except for net proceeds from public
equity issuances by Digital Realty Trust, Inc., which are generally contributed to the Operating Partnership in exchange for partnership units, the Operating
Partnership generally generates the capital required by the Company’s business primarily through the Operating Partnership’s operations, by the Operating
Partnership’s or its affiliates’ direct or indirect incurrence of indebtedness or through the issuance of partnership units.

The presentation of noncontrolling interests in operating partnership, stockholders’ equity and partners’ capital are the main areas of difference between the

consolidated financial statements of Digital Realty Trust, Inc. and those of the Operating Partnership. The common limited partnership interests held by the limited
partners in the Operating Partnership are presented as limited partners’ capital within partners’ capital in the Operating Partnership’s consolidated financial
statements and as noncontrolling interests in operating partnership within equity in Digital Realty Trust, Inc.’s consolidated financial statements. The common and
preferred partnership interests held by Digital Realty Trust, Inc. in the Operating Partnership are presented as general partner’s capital within partners’ capital in
the Operating Partnership’s consolidated financial statements and as preferred stock, common stock, additional paid-in capital and accumulated dividends in excess
of earnings within stockholders’ equity in Digital Realty Trust, Inc.’s consolidated financial statements. The differences in the presentations between stockholders’
equity and partners’ capital result from the differences in the equity issued at the Digital Realty Trust, Inc. and the Operating Partnership levels.

To help investors understand the significant differences between the Company and the Operating Partnership, these consolidated financial statements present

the following separate sections for each of the Company and the Operating Partnership:

•
•

consolidated face financial statements; and
the following notes to the consolidated financial statements:
•
•
•

Debt of the Company and Debt of the Operating Partnership;
Income per Share and Income per Unit;
Equity and Accumulated Other Comprehensive Loss, Net of the Company and Capital and Accumulated Other Comprehensive
Income (Loss) of the Operating Partnership; and

116

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

•

Quarterly Financial Information.

In the sections that combine disclosure of Digital Realty Trust, Inc. and the Operating Partnership, these notes refer to actions or holdings as being actions or

holdings of the Company. Although the Operating Partnership is generally the entity that enters into contracts and joint ventures and holds assets and debt,
reference to the Company is appropriate because the business is one enterprise and the Company generally operates the business through the Operating Partnership.

(b)
Cash
Equivalents

For the purpose of the consolidated statements of cash flows, we consider short-term investments with original maturities of 90 days or less to be cash

equivalents. As of December 31, 2017 and 2016 , cash equivalents consist of investments in money market instruments.

(c)
Investments
in
Real
Estate

Investments in real estate are stated at cost, less accumulated depreciation and amortization. Land is not depreciated. Depreciation and amortization are

recorded on a straight-line basis over the estimated useful lives as follows:

Acquired ground leases

Buildings and improvements

Machinery and equipment

Furniture and fixtures

Leasehold improvements

Tenant improvements

   Terms of the related lease
   5-39 years
  7-15 years

  3-5 years

  Shorter of the estimated useful lives or the terms of the related leases
   Shorter of the estimated useful lives or the terms of the related leases

Improvements and replacements are capitalized when they extend the useful life, increase capacity, or improve the efficiency of the asset. Repairs and

maintenance are charged to expense as incurred.

Assets that are classified as held for sale are recorded at the lower of their carrying value or fair value less costs to dispose. We classify an asset as held for

sale once management has the authority to approve and commits to a plan to sell, the asset is available for immediate sale, an active program to locate a buyer has
commenced and the sale of the asset is probable and transfer of the asset is expected to occur within one year. Upon the classification of assets as held for sale or
sold, the depreciation and amortization of the assets will cease.

(d)
Investments
in
Unconsolidated
Joint
Ventures

The Company’s investment in unconsolidated joint ventures are accounted for using the equity method, whereby our investment is increased for capital
contributed and our share of the joint venture's net income and decreased by distributions we receive and our share of any losses of the joint ventures. We do not
record losses of the joint ventures in excess of our investment balances unless we are liable for the obligations of the joint venture or are otherwise committed to
provide financial support to the joint venture. Likewise, and as long as we have no explicit or implicit obligations to the joint venture, we will suspend equity
method accounting to the extent that cash distributions exceed our investment balances until those unrecorded earnings exceed the excess distributions previously
recognized in income. In this case, we will apply cost accounting concepts which tie income recognition to the receipt of cash.  Cost basis accounting concepts will
apply until earnings exceed the excess distributions previously recognized in income.

We amortize the difference between the cost of our investment in the joint ventures and the book value of the underlying equity into income on a straight-line

basis consistent with the lives of the underlying assets. The amortization of this difference was immaterial for each of the years ended  December 31, 2017 , 2016
 and  2015 .

117

 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(e)
Impairment
of
Long-Lived
Assets

We review each of our properties for indicators that its carrying amount may not be recoverable. Examples of such indicators may include a significant

decrease in the market price of the property, a change in the expected holding period for the property, a significant adverse change in how the property is being
used or expected to be used based on the underwriting at the time of acquisition, an accumulation of costs significantly in excess of the amount originally expected
for the acquisition or development of the property, or a history of operating or cash flow losses of the property. When such impairment indicators exist, we review
an estimate of the future undiscounted net cash flows (excluding interest charges) expected to result from the real estate investment’s use and eventual disposition
and compare that estimate to the carrying value of the property. We consider factors such as future operating income, trends and prospects, as well as the effects of
leasing demand, competition and other factors. If our future undiscounted net cash flow evaluation indicates that we are unable to recover the carrying value of a
real estate investment, an impairment loss is recorded to the extent that the carrying value exceeds the estimated fair value of the property. These losses have a
direct impact on our net income because recording an impairment loss results in an immediate negative adjustment to net income. The evaluation of anticipated
cash flows is highly subjective and is based in part on assumptions regarding future occupancy, rental rates and capital requirements that could differ materially
from actual results in future periods. Since cash flows on properties considered to be long-lived assets to be held and used are considered on an undiscounted basis
to determine whether the carrying value of a property is recoverable, our strategy of holding properties over the long-term directly decreases the likelihood of their
carrying values not being recoverable and therefore requiring the recording of an impairment loss. If our strategy changes or market conditions otherwise dictate an
earlier sale date, an impairment loss may be recognized and such loss could be material. If we determine that the asset fails the recoverability test, the affected
assets must be reduced to their fair value.

We generally estimate the fair value of rental properties utilizing a discounted cash flow analysis that includes projections of future revenues, expenses and

capital improvement costs that a market participant would use based on the highest and best use of the asset, which is similar to the income approach that is
commonly utilized by appraisers. In certain cases, we may supplement this analysis by obtaining outside broker opinions of value.

In considering whether to classify a property as held for sale, the Company considers whether: (i) management has committed to a plan to sell the property;

(ii) the property is available for immediate sale in its present condition; (iii) the Company has initiated a program to locate a buyer; (iv) the Company believes that
the sale of the property is probable; (v) the Company is actively marketing the property for sale at a price that is reasonable in relation to its current value; and (vi)
actions required for the Company to complete the plan indicate that it is unlikely that any significant changes will be made to the plan.

If all the above criteria are met, the Company classifies the property as held for sale.  Upon being classified as held for sale, the Company ceases all
depreciation and amortization related to the property and it is recorded at the lower of its carrying amount or fair value less cost to sell.  The assets and related
liabilities of the property are classified separately on the consolidated balance sheets for the most recent reporting period.  Only those assets held for sale that
constitute a strategic shift that has or will have a major effect on our operations are classified as discontinued operations.  To date we have had no property
dispositions or assets classified as held for sale that would meet the definition of discontinued operations.

(f)
Purchase
Accounting

Purchase accounting is applied to the assets and liabilities related to all real estate investments acquired from third parties. The Company evaluates the nature

of the purchase to determine whether the purchase is a business combination or an asset acquisition. Transaction costs associated with business combinations are
expensed as incurred while transaction costs associated with an asset acquisition are included in the total costs of the acquisition and are allocated on a pro-rata
basis to the carrying value of the assets and liabilities recognized in connection with the acquisition. The following accounting policies related to valuing the
acquired tangible and intangible assets and liabilities are applicable to both business combinations and asset acquisitions. However, in the event the purchase is an
asset acquisition, no goodwill or gain is permitted to be recognized. In an asset acquisition, the difference between the sum of the identified tangible and intangible
assets and liabilities and the total purchase price (including transactions costs) is allocated to the identified tangible and intangible assets and liabilities on a relative
fair value basis. In accordance with current accounting guidance , the fair value of the real estate acquired is allocated to the acquired tangible assets, consisting
primarily of land, building and tenant improvements, and identified intangible assets and liabilities, consisting of the value of above-market and below-market
leases, value of in-place leases and acquired ground leases and in the case of a business combination, tenant relationship value, based in each case on their fair
values. Loan premiums, in

118

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

the case of above-market rate loans, or loan discounts, in the case of below-market loans, are recorded based on the fair value of any loans assumed in connection
with acquiring the real estate.

The fair values of the tangible assets of an acquired property are determined based on comparable land sales for land and replacement costs adjusted for
physical and market obsolescence for the improvements. The fair values of the tangible assets of an acquired property are also determined by valuing the property
as if it were vacant, and the “as-if-vacant” value is then allocated to land, building and tenant improvements based on management’s determination of the relative
fair values of these assets. Management determines the as-if-vacant fair value of a property based on assumptions that a market participant would use, which is
similar to methods used by independent appraisers. Factors considered by management in performing these analyses include an estimate of carrying costs during
the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, management includes real
estate taxes, insurance and other operating expenses and estimates of lost rental revenue during the expected lease-up periods based on current market demand.
Management also estimates costs to execute similar leases including leasing commissions, tenant improvements, legal and other related costs.

In allocating the fair value of the identified intangible assets and liabilities of an acquired property, above-market and below-market in-place lease values are
recorded based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual
amounts to be paid pursuant to the in-place leases and (ii) estimated fair market lease rates from the perspective of a market participant for the corresponding in-
place leases, measured, for above-market leases, over a period equal to the remaining non-cancelable term of the lease and, for below-market leases, over a period
equal to the initial term plus any below-market fixed rate renewal periods. The leases we have acquired do not currently include any below-market fixed rate
renewal periods. The capitalized above-market lease values are amortized as a reduction of rental income over the remaining non-cancelable terms of the
respective leases. The capitalized below-market lease values, also referred to as acquired lease obligations, are amortized as an increase to rental income over the
initial terms of the respective leases and any below-market fixed rate renewal periods.

In addition to the intangible value for above-market leases and the intangible negative value for below-market leases, there is intangible value related to
having tenants leasing space in the purchased property, which is referred to as in-place lease value. Such value results primarily from the buyer of a leased property
avoiding the costs associated with leasing the property and also avoiding rent losses and unreimbursed operating expenses during the lease-up period. Factors to be
considered by management in its analysis of in-place lease values include an estimate of carrying costs during hypothetical expected lease-up periods considering
current market conditions, and costs to execute similar leases.  In estimating carrying costs, management includes real estate taxes, insurance and other operating
expenses and estimates of lost rental revenue at market rates during the expected lease-up periods, depending on local market conditions.  In estimating costs to
execute similar leases, management considers leasing commissions, legal and other related expenses.  The value of in-place leases is amortized to expense over the
remaining initial terms of the respective leases. 

In the event of a business combination, the Company will use the excess earnings method to value tenant relationship value, if any. Such value exists in

transactions that involve the acquisition of tenants and customers that are expected to generate recurring revenues beyond existing in place lease terms. The
primary factors to be considered by management in its analysis of tenant relationship value include historical tenant lease renewals and attrition rates, rental
renewal probabilities and related market terms, estimated operating costs, and discount rate. Tenant relationship value is amortized to expense ratably over the
anticipated life of the tenant relationships generating excess earnings, which is the period management uses to value this intangible asset. 

(g)
Goodwill

Goodwill represents the excess of the purchase price over the fair value of net tangible and intangible assets acquired and tangible and intangible liabilities

assumed in a business combination. Goodwill is not amortized.  We perform an annual impairment test for goodwill and between annual tests, we evaluate
goodwill for impairment whenever events or changes in circumstances occur that would more likely than not reduce the fair value of a reporting unit below its
carrying value.  In our impairment tests of goodwill, we first assess qualitative factors to determine whether it is more likely than not that the fair value of a
reporting unit is less than its carrying value.  If based on this assessment, we determine that the fair value of the reporting unit is not less than its carrying value,
then performing the additional two-step impairment test is unnecessary. If our qualitative

119

 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

assessment indicates that goodwill impairment is more likely than not, we perform a two-step impairment test. We test goodwill for impairment under the two-step
impairment test by first comparing the book value of net assets including goodwill to the fair value of the reporting unit. If the fair value is determined to be less
than the book value of the net assets, including goodwill, a second step is performed to compute the amount of impairment as the difference between the implied
fair value of goodwill and its carrying value. We estimate the fair value of the reporting units using discounted cash flows. If the carrying value of goodwill
exceeds its implied fair value, an impairment charge is recognized. We have not recognized any goodwill impairments since our inception. Since some of the
goodwill is denominated in foreign currencies, changes to the goodwill balance occur over time due to changes in foreign exchange rates.

The following is a summary of goodwill activity for the year ended December 31, 2017 (in thousands):

Balance as of
December 31, 2016  

Merger /
Acquisition

Goodwill
Adjustments

Impact of Change
in Foreign
Exchange Rates

Balance as of
December 31, 2017

  $

330,845   $

422,125  

—   $

—  

—  

2,592,181  

—   $

—   $

(2,620)

(35)

47,099  

—  

  $

752,970   $

2,592,181   $

(2,655)

  $

47,099   $

330,845

466,604

2,592,146

3,389,595

Merger / Portfolio Acquisition

Telx Acquisition

European Portfolio Acquisition

DFT Merger

Total

(h)
Capitalization
of
Costs

Direct and indirect project costs that are clearly associated with the development of properties are capitalized as incurred. Project costs include all costs
directly associated with the development of a property, including construction costs, interest, property taxes, insurance, legal fees and costs of personnel working
on the project. Indirect costs that do not clearly relate to the projects under development are not capitalized and are charged to expense as incurred.

Capitalization of costs begins when the activities necessary to get the development project ready for its intended use begins, which include costs incurred

before the beginning of construction. Capitalization of costs ceases when the development project is substantially complete and ready for its intended use.
Determining when a development project commences and when it is substantially complete and ready for its intended use involves a degree of judgment. We
generally consider a development project to be substantially complete and ready for its intended use upon receipt of a certificate of occupancy. If and when
development of a property is suspended pursuant to a formal change in the planned use of the property, we will evaluate whether the accumulated costs exceed the
estimated value of the project and write off the amount of any such excess accumulated costs. For a development project that is suspended for reasons other than a
formal change in the planned use of such property, the accumulated project costs are evaluated for impairment consistent with our impairment policies for long-
lived assets. Capitalized costs are allocated to the specific components of a project that are benefited.

During the years ended December 31, 2017 , 2016 and 2015 , we capitalized interest of approximately $21.7 million , $16.3 million and $12.9 million ,
respectively. During the years ended December 31, 2017 , 2016 and 2015 , we capitalized amounts relating to compensation expense of employees direct and
incremental to construction and successful leasing activities of approximately $77.3 million , $70.7 million and $60.1 million , respectively. In addition to
capitalized cash compensation, approximately $22.9 million , $13.4 million and $22.8 million of capitalized costs primarily related to external leasing commissions
are included in improvements to and advances for investments in real estate in cash flows from investing activities in the consolidated statements of cash flows for
the years ended December 31, 2017 , 2016 and 2015 , respectively.

120

 
 
 
 
 
   
   
   
   
   
 
   
   
   
   
   
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(i)
Deferred
Leasing
Costs

Leasing commissions and other direct and indirect costs associated with the acquisition of tenants are capitalized and amortized on a straight-line basis over

the terms of the related leases. Deferred leasing costs is included in acquired in-place lease value, deferred leasing costs and intangibles on the consolidated balance
sheet and amounted to approximately $330.9 million and $253.7 million , net of accumulated amortization, as of December 31, 2017 and 2016 , respectively.

(j)
Foreign
Currency
Translation

Assets and liabilities of our subsidiaries outside the United States with non-U.S. dollar functional currencies are translated into U.S. dollars using exchange

rates as of the balance sheet dates. Income and expenses are translated using the average exchange rates for the reporting period. Foreign currency translation
adjustments are recorded as a component of other comprehensive income. In the statement of cash flows, cash flows denominated in foreign currencies are
translated using the exchange rates in effect at the time of the cash flows or an average exchange rate for the period, depending on the nature of the cash flow item.

(k)
Deferred
Financing
Costs

Loan fees and costs are recorded as an adjustment to the carrying amount of the related debt and amortized over the life of the related loans on a straight-line

basis, which approximates the effective interest method. Such amortization is included as a component of interest expense.

(l)
Restricted
Cash

Restricted cash consists of deposits for real estate taxes and insurance and other amounts as required by our loan agreements including funds for leasing costs

and improvements related to unoccupied space.

(m)
Offering
Costs

Underwriting commissions and other offering costs are reflected as a reduction in additional paid-in capital, or in the case of preferred stock, as a reduction

of the carrying value of preferred stock.

(n)
Share-Based
Compensation

The Company measures all share-based compensation awards at fair value on the date they are granted to employees and directors, and recognizes

compensation cost, net of forfeitures, over the requisite service period for awards with only a service condition. The estimated fair value of the long-term incentive
units and Class D Units (discussed in Note 14) granted by us is being amortized on a straight-line basis over the expected service period.

The fair value of share-based compensation awards that contain a market condition is measured using a Monte Carlo simulation method and not adjusted

based on actual achievement of the market condition.

(o)
Accounting
for
Derivative
Instruments
and
Hedging
Activities

We account for our derivative instruments and hedging activities in accordance with the accounting standard for derivative and hedging activities. The

accounting standard requires us to measure every derivative instrument (including certain derivative instruments embedded in other contracts) at fair value and
record them in the balance sheet as either an asset or liability.

The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other

comprehensive income (loss) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective
portion of the change in fair value of the derivatives is recognized directly in earnings. The amount of loss recognized in income related to the settlement of
derivatives or ineffective portion of the hedging relationships for the years ended December 31, 2016 and 2015 was approximately $3.1 million and $1.6 million ,
respectively. No amount was recorded for the year ended December 31, 2017 related to the settlement of derivatives or ineffective portion of the hedging
relationships.

121

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

We actively manage our ratio of fixed-to-floating rate debt. To manage our fixed and floating rate debt in a cost-effective manner, we, from time to time,

enter into interest rate swap agreements as cash flow hedges, under which we agree to exchange various combinations of fixed and/or variable interest rates based
on agreed upon notional amounts. In addition, we have entered into a series of forward contracts pursuant to which we agreed to sell an amount of foreign currency
for an agreed upon amount of USD. These forward contracts were executed to manage foreign currency exposures associated with certain transactions. We do not
enter into derivative instruments for trading purposes.

(p)
Income
Taxes

Digital Realty Trust, Inc. has elected to be treated as a real estate investment trust (a “REIT”) for federal income tax purposes. As a REIT, Digital Realty

Trust, Inc. generally is not required to pay federal corporate income tax to the extent taxable income is currently distributed to its stockholders. If Digital Realty
Trust, Inc. fails to qualify as a REIT in any taxable year, it will be subject to federal income tax (including any applicable alternative minimum tax for taxable
years prior to 2018) on its taxable income.

The Company is subject to foreign, state and local income taxes in the jurisdictions in which it conducts business. The Company’s taxable REIT subsidiaries
are subject to federal, state and foreign income taxes to the extent there is taxable income. Accordingly, the Company recognizes current and deferred income taxes
for its taxable REIT subsidiaries, including federal, state and non-U.S. jurisdictions, as appropriate.

We assess our significant tax positions in accordance with U.S. GAAP for all open tax years and determine whether we have any material unrecognized
liabilities from uncertain tax benefits. If a tax position is not considered “more-likely-than-not” to be sustained solely on its technical merits, no benefits of the tax
position are to be recognized (for financial statement purposes). As of December 31, 2017 and 2016 , we have no assets or liabilities for uncertain tax positions.
We classify interest and penalties from significant uncertain tax positions as interest expense and operating expense, respectively, in our consolidated income
statements. For the years ended December 31, 2017 , 2016 and 2015 , we had no such interest or penalties. The tax year 2014 and thereafter remain open to
examination by the major taxing jurisdictions with which the Company files tax returns.

See Note 11 for further discussion on income taxes.

(q)
Presentation
of
Transactional-based
Taxes

We account for transactional-based taxes, such as value added tax, or VAT, for our international properties on a net basis.

(r)
Revenue
Recognition

All leases are classified as operating leases and minimum rents are recognized on a straight-line basis over the terms of the leases. The excess of rents

recognized over amounts contractually due pursuant to the underlying leases is included in deferred rent in the accompanying consolidated balance sheets and
contractually due but unpaid rents are included in accounts and other receivables.

Tenant reimbursements for real estate taxes, common area maintenance, and other recoverable costs are recognized in the period that the expenses are
incurred. Lease termination fees, which are included in other revenue in the accompanying consolidated income statements, are recognized over the new remaining
term of the lease, effective as of the date the lease modification is finalized, and assuming collection is probable. During the three months ended December 31,
2016, we recognized a non-cash gain on lease termination of approximately $29.2 million , as one of our tenants, as part of a lease termination, conveyed
substantially all of its colocation and turn-key improvements to the Company.

Colocation services are generally governed by a master terms and conditions agreement (MTC). Customers typically execute an MTC for one - to three -year
terms. The Company bills customers on a monthly basis and recognizes the revenue as those services are performed over the term of the agreement. Revenues from
installation services for colocation services are initially deferred and recognized on a straight-line basis over the average life of customer contracts.

122

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Interconnection services are generally provided on a month-to-month, one-year or multi-year term under the MTC for colocation services. Interconnection

services include port and cross-connect services. Port services are typically sold on a one-year or multi-year term and revenue is recognized on a recurring monthly
basis similar to colocation services. The Company bills customers on a monthly basis and recognizes the revenue in the period the service is provided. Revenue for
cross-connect installations is generally recognized in the period the cross-connect is installed.

A provision for loss is made if the collection of the receivable balances related to contractual rent, rent recorded on a straight-line basis, tenant

reimbursements and lease termination fees is considered to be doubtful.

(s)
Gains
on
Sale
of
Properties


Gains on sale of properties are recognized using the full accrual or partial sale methods, as applicable, in accordance with U.S. GAAP, provided various

criteria relating to the terms of sale and any subsequent involvement with the real estate sold are satisfied.

(t)
Fee
Income

Occasionally, customers engage the Company for certain services. The nature of these services historically involves property management, construction
management, and assistance with financing. The proper revenue recognition of these services can be different, depending on whether the arrangements are service
revenue or contractor type revenue.

Service revenues are typically recognized on an equal monthly basis based on the minimum fee to be earned. The monthly amounts could be adjusted

depending on if certain performance milestones are met.

Fee income also includes management fees. These fees arise from contractual agreements with entities in which we have a noncontrolling interest. The
management fees are recognized as earned under the respective agreements. Management and other fee income related to partially owned entities are recognized to
the extent attributable to the unaffiliated interest.

(u)
Asset
Retirement
Obligations

We record accruals for estimated retirement obligations as required by current accounting guidance. The amount of asset retirement obligations relates

primarily to estimated costs associated with asbestos removal at the end of the economic life of properties that were built before 1984 along with remediation of
soil contamination issues. As of December 31, 2017 and 2016 , the amount included in accounts payable and other accrued liabilities on our consolidated balance
sheets was approximately $12.5 million and $5.7 million , respectively.

(v)
Assets
and
Liabilities
Measured
at
Fair
Value

Fair value under U.S. GAAP is a market-based measurement, not an entity-specific measurement. Therefore, our fair value measurements are determined
based on the assumptions that market participants would use in pricing the asset or liability. As a basis for considering market participant assumptions in fair-value
measurements, we use a fair-value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of
the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market
participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).

Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access. Level 2 inputs
are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted
prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest
rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability
which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair-value
measurement is based on inputs from different levels of the fair-value hierarchy, the lowest level input that is significant would be used to determine the fair-value
measurement in its entirety. Our assessment of the significance of a particular input to the fair-value measurement in its entirety requires judgment, and considers
factors specific to the asset or liability.

123

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(w)
Transaction
and
Integration
Expense

Transaction and integration expense includes business combination expenses, other business development expenses and other expenses to integrate newly
acquired investments, which are expensed as incurred. Transaction expenses include closing costs, broker commissions and other professional fees, including legal
and accounting fees related to business combinations or acquisitions that were not consummated. Integration costs include transition costs associated with
organizational restructuring (such as severance and retention payments and recruiting expenses), third-party consulting expenses directly related to the integration
of acquired companies (in areas such as cost savings and synergy realization, technology and systems work), and internal costs such as training, travel and labor,
reflecting time spent by Company personnel on integration activities and projects. Recurring costs are recorded in general and administrative expense.

(x)
Management’s
Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported

amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of
revenues and expenses during the reporting period. Actual results could differ from those estimates made. On an on-going basis, we evaluate our estimates,
including those related to the valuation of our real estate properties, tenant relationship value, goodwill, contingent consideration, accounts receivable and deferred
rent receivable, performance-based equity compensation plans and the completeness of accrued liabilities. We base our estimates on historical experience, current
market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results may vary from those estimates and
those estimates could vary under different assumptions or conditions.

(y)
Segment
and
Geographic
Information

All of our properties generate similar revenues and expenses related to tenant rent and reimbursements and operating expenses. The sale and delivery of our

products is consistent across all properties and although services are provided to a wide range of customers, the types of real estate services provided to them are
standardized throughout the portfolio. As such, the properties in our portfolio have similar economic characteristics and the nature of the products and services
provided to our customers and the method to distribute such services are consistent throughout the portfolio. Consequently, our properties qualify for aggregation
into one reporting segment.

Operating revenues from properties in the United States were $1.9 billion , $1.7 billion and $1.4 billion and outside the United States were $0.5 billion , $0.4

billion and $0.4 billion for the years ended December 31, 2017 , 2016 and 2015 , respectively. We had investments in real estate located in the United States of
$10.5 billion , $6.3 billion and $6.1 billion and outside the United States of $3.1 billion , $2.6 billion and $2.6 billion as of December 31, 2017 , 2016 and 2015 ,
respectively.

Operating revenues from properties located in the United Kingdom were $0.3 billion , $0.2 billion and $0.2 billion , or 11.2% , 11.1% and 12.3% of total

operating revenues, for the years ended December 31, 2017 , 2016 and 2015 , respectively. No other foreign country comprised more than 10% of total operating
revenues for each of these years. We had investments in real estate located in the United Kingdom of $1.7 billion , $1.5 billion and $1.6 billion , or 12.1% , 16.6%
and 18.8% of total investments in real estate, as of December 31, 2017 , 2016 and 2015 , respectively. No other foreign country comprised more than 10% of total
investments in real estate as of each of December 31, 2017 , 2016 and 2015 .

124

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(z)
New
Accounting
Pronouncements

New Accounting Standards Adopted

In January 2017, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, No. 2017-01, "Clarifying the Definition
of a Business (Topic 805)." ASU 2017-01 clarifies the definition of a business and provides further guidance for evaluating whether a transaction will be accounted
for as an acquisition of an asset or a business. ASU 2017-01 is effective for interim and annual periods beginning after December 15, 2017, and early adoption is
permitted. The update should be applied prospectively. We adopted ASU 2017-01 as of January 1, 2017 and the adoption did not require any additional
disclosures. We believe most of our future acquisitions of operating properties will qualify as asset acquisitions and most future transaction costs associated with
these acquisitions will be capitalized.

In November 2016, the FASB issued an ASU that will require companies to include restricted cash and restricted cash equivalents with cash and cash
equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The ASU will require a disclosure of
a reconciliation between the statement of financial position and the statement of cash flows when the statement of financial position includes more than one line
item for cash, cash equivalents, restricted cash, and restricted cash equivalents. Entities with material restricted cash and restricted cash equivalents balances will
be required to disclose the nature of the restrictions. The ASU is effective for reporting periods beginning after December 15, 2017, with early adoption permitted,
and will be applied retrospectively to all periods presented. We adopted this ASU as of January 1, 2017, and restricted cash balances are included along with cash
and cash equivalents as of the end of period and beginning of period in our condensed consolidated statement of cash flows for all periods presented; separate line
items showing changes in restricted cash balances have been eliminated from our condensed consolidated statement of cash flows.

In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting,” which provides for simplification of
certain aspects of employee share-based payment accounting, including income taxes, classification of awards as either equity or liabilities, and classification on
the statement of cash flows. The amendments in this standard must be applied prospectively, retrospectively, or as of the beginning of the earliest comparative
period presented in the year of adoption, depending on the type of amendment. We adopted ASU 2016-09 as of January 1, 2017, and it did not have a material
impact on our consolidated financial statements.

New Accounting Standards Issued but not yet Adopted

In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)", and since that date has issued several additional

ASUs intended to clarify certain aspects of ASU 2014-09 and to provide for certain practical expedients entities may elect upon adoption. Collectively, these ASUs
outline a single comprehensive model for entities to use in accounting for revenues arising from contracts with customers. While lease contracts with customers,
which constitute the vast majority of our revenues, are a specific scope exception, this update may have implications in certain variable payment terms included in
lease agreements. The Company expects to adopt the guidance effective January 1, 2018 and is in the process of analyzing the impact of the adoption of this
guidance. The standard permits the use of either a retrospective or cumulative effect transition method and permits the use of certain practical expedients. We
currently anticipate using the modified retrospective method, however, this determination is subject to change. As the standard does not significantly impact lessor
accounting, we do not believe adoption will have a material impact on our accounting for rental revenue. In addition, we do not anticipate a significant impact to
our accounting for certain of our revenue streams which are not based on contractually specified lease amounts, including interconnection, tenant reimbursement
and other revenue. However, the Company believes that certain non-lease components of revenue from leases may be impacted by the adoption of the new leasing
standard beginning January 1, 2019, the effective date of the new leasing standard (see below). This new guidance could result in different amounts of revenue
being recognized and could result in revenue being recognized in different reporting periods than under the current guidance; however, the Company expects that
the majority of its non-lease revenues will continue to be recognized during the periods in which services are performed. The Company is currently assessing what
additional disclosures will be required upon adoption of this new standard.

125

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

In January 2016, the FASB issued ASU 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and

Financial Liabilities".  The amendments in ASU 2016-01 address certain aspects of recognition, measurement, presentation and disclosure of financial
instruments.  ASU 2016-01 primarily affects accounting for equity investments and financial liabilities where the fair value option has been elected.  ASU 2016-
01 also requires entities to present financial assets and financial liabilities separately, grouped by measurement category and form of financial asset in the balance
sheet or in the accompanying notes to the financial statements.  ASU 2016-01 is effective for annual periods beginning after December 15, 2017, including interim
periods within those fiscal years.  Early application of certain provisions of the standard is permitted for financial statements that have not been previously
issued. The Company does not expect the adoption of ASU 2016-01 to have a significant impact on its financial statements.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)", which sets out the principles for the recognition, measurement, presentation and

disclosure of leases for both parties to a contract (i.e., lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either
finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine
whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a
right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Accounting for leases with a term of 12
months or less will be similar to existing guidance for operating leases today. The new standard requires lessors to account for leases using an approach that is
substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU 2016-02 is expected to impact the Company’s
consolidated financial statements for leases where the Company is a lessee, primarily for the Company’s data center operating leases, ground leases and
administrative office leases, and the Company will be required to record a lease liability and a right of use asset on its condensed consolidated balance sheet at fair
value upon adoption. ASU 2016-02 supersedes the previous leases standard, "Leases (Topic 840)". The standard is effective on January 1, 2019, with early
adoption permitted. A set of practical expedients for implementation, which must be elected as a package and for all leases, may also be elected. These practical
expedients include relief from re-assessing lease classification at the adoption date for expired or existing leases, although a right-of-use asset and lease liability
would still be recorded for such leases. We are currently assessing the method of adoption and the impact that ASU 2016-02 will have on our consolidated
financial statements.

In August 2016, the FASB issued guidance codified in ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and

Cash Payments". The standard provides guidance on eight specific cash flow classification issues including debt prepayment or debt extinguishment costs,
contingent consideration payments made after a business combination, and separately identifiable cash flows and application of the predominance principle. The
standard will be effective for the fiscal year beginning January 1, 2018, and subsequent interim periods. We do not expect the provisions of ASU 2016-15 to have a
material impact on our consolidated financial statements.

In January 2017, the FASB issued guidance codified in ASU Topic 2017-04, "Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for
Goodwill Impairment". ASU 2017-04 simplifies the accounting for goodwill impairment by eliminating the process of measuring the implied value of goodwill,
known as step two, from the goodwill impairment test. Instead, if the carrying amount of a reporting unit exceeds its fair value, an impairment loss shall be
recognized in an amount equal to that excess, limited to the total amount of goodwill allocated to that reporting unit. The standard will be effective for interim and
annual reporting periods beginning after December 15, 2019, with early adoption permitted. We do not expect the provisions of ASC 2017-04 to have a material
impact on our consolidated financial statements.

In May 2017, FASB issued ASU 2017-09, "Scope of Modification Accounting," which amends the scope of modification accounting for share-based

payment arrangements and provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be
required to apply modification accounting under ASC 718. This update is effective for interim and annual reporting periods in fiscal years beginning after
December 15, 2017, with early adoption permitted. The Company does not believe that the adoption of this standard will have a material impact on its financial
statements.

In August 2017, the FASB issued guidance codified in ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for

Hedging Activities". ASU 2017-12 simplifies the accounting for hedge accounting by eliminating the requirement to separately measure and report hedge
ineffectiveness and presenting all items that affect earnings

126

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

in the same income statement line item as the hedged item. The standard will be effective for interim and annual reporting periods beginning after December 15,
2018, with early adoption permitted. We do not expect the provisions of ASU 2017-12 to have a material impact on our consolidated financial statements.

127

Table of Contents

Index to Financial Statements

3. Merger and Portfolio Acquisitions

(a)
DFT
Merger

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

We completed the acquisition of DFT on September 14, 2017. A summary of the fair value of the assets and liabilities acquired for total equity of

approximately $6.2 billion is as follows (in thousands):

Land

Buildings and improvements

Cash and cash equivalents

Accounts and other receivables

Acquired above-market leases

Goodwill

Acquired in-place lease value, deferred leasing costs and intangibles:

Tenant relationship value

Acquired in-place lease value

Tenant origination costs

Global revolving credit facility, net (1)
Unsecured term loans (1)
Unsecured senior notes, net (2)
Mortgage loans (1)

Acquired below-market leases

Accounts payable and other accrued liabilities

Other working capital, net

Total equity consideration for DFT merger

Weighted Average
Remaining
Intangible
Amortization Life
(in months)

$

Fair Value

312,579    

3,677,497    

20,650    

10,978    

162,333  

47

2,592,181    

220

70

80

137

980,267  

557,128  

44,990  

(450,697)    

(250,000)    

(886,831)    

(105,000)    

(185,543)  

(248,259)    

(22,640)    

$

6,209,633    

(1) Debt was paid off in full at closing of the DFT merger.
(2) Approximately $621 million of fair value debt was paid off prior to September 30, 2017. The remainder was paid off in October 2017.

Goodwill represents the excess of the purchase price over the fair value of net tangible and intangible assets acquired and tangible and intangible liabilities

assumed in the merger.

The strategic benefits of the merger include the Company’s ability to grow its presence in strategic, high-demand metropolitan areas with strong growth
prospects, expand our hyper-scale product offering and further enhance the credit quality of our existing customer base. These factors contributed to the goodwill
that was recorded upon consummation of the transaction. The Company does not believe that any of the goodwill recorded as a result of the DFT merger will be
deductible for federal income tax purposes.

128

 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

The unaudited pro forma financial information set forth below is based on our historical condensed consolidated income statements for the years ended

December 31, 2017 and 2016, adjusted to give effect to the DFT Merger as if it occurred on January 1, 2016. The pro forma adjustments primarily relate to
transaction expenses, depreciation expense on acquired buildings and improvements, amortization of acquired intangibles, and estimated interest expense related to
financing transactions, the proceeds of which were used to fund the repayment of DFT debt in connection with the DFT merger.

Digital
Realty
Trust,
Inc.

Total revenue

Net income available to common
   stockholders (1)

Income per share, diluted (2)

Digital
Realty
Trust,
L.P.

Total revenue

Net income available to common
   unitholders (1)

Income per unit, diluted (2)

Pro forma (unaudited)

(in thousands, except per share data)

Year Ended December 31,

2017

2016

2,860,454   $

2,670,914

51,717   $

0.25   $

99,653

0.51

Pro forma (unaudited)

(in thousands, except per unit data)

Year Ended December 31,

2017

2016

2,860,454   $

2,670,914

53,786   $

0.25   $

103,639

0.51

  $

  $

  $

  $

  $

  $

(1) Pro forma net income available to common stockholders was adjusted to exclude $43.0 million of merger-related costs incurred by the Company during the

year ended December 31, 2017 and to include these charges in 2016.

(2) Adjusted to give effect to the issuance of approximately 43.2 million shares of Digital Realty Trust, Inc. common stock in the DFT merger.

The Company recorded transaction expenses of approximately $43.0 million in the accompanying 2017 consolidated income statement in connection with

the DFT merger. Revenues of approximately $177.8 million and net income of approximately $5.4 million associated with properties acquired in the DFT merger
are included in the consolidated income statement for the year ended December 31, 2017 .

129

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(b)
European
Portfolio
Acquisition

On July 5, 2016, the Company completed the acquisition of a portfolio of  eight  high-quality, carrier-neutral data centers in Europe from Equinix, which we
refer to as the European Portfolio Acquisition. The purchase price was $818.9 million in the aggregate (based on the exchange rate at the date of acquisition). The
final purchase price allocation was completed in early 2017. The final adjustments to the preliminary purchase price allocation were not material. The following
table summarizes the amounts for acquired assets and liabilities recorded at their fair values as of the acquisition date (in thousands):

Investments in real estate

Goodwill

Tenant relationship value

Acquired in-place lease value

Above/below-market lease value, net

Capital lease and other long-term obligations

Deferred taxes

Total purchase price

$

$

270,195

442,975

249,070

18,807

4,817

(118,923)

(48,037)

818,904

Goodwill represents the excess of the purchase price over the fair value of net tangible and intangible assets acquired and tangible and intangible liabilities
assumed in the acquisition. As shown above, we recorded approximately $443.0 million of goodwill related to the European Portfolio Acquisition. The strategic
benefits of the acquisition include the Company’s ability to continue its strategy to provide foundational data center real estate solutions on a global basis with a
diversified product offering of both small and large footprint deployments as well as interconnection services. These factors contributed to the goodwill that was
recorded upon consummation of the transaction.

The Company recorded transaction expenses of approximately $6.9 million in the accompanying 2016 consolidated income statement in connection with the

European Portfolio Acquisition. Actual results in 2016 included total revenues and operating expenses of the acquired properties of  $55.3 million  and  $20.1
million , respectively. 

4. Investments in Real Estate

A summary of our investments in properties as of December 31, 2017 and 2016 is as follows:

As of December 31, 2017

(in thousands)

Property Type
Internet Gateway Data Centers

Data Centers

Technology Manufacturing

Technology Office

Other

Land

Acquired 
Ground 
Lease

Buildings and 
Improvements (1)

Tenant 
Improvements

Accumulated 
Depreciation 
and 
Amortization

Net 
Investment 
in Properties

$

109,844   $

—   $

1,940,495   $

99,174   $

(778,659)   $

1,370,854

1,010,306  

11,150  

13,147,042  

453,712  

(2,430,984)  

12,191,226

11,959  

2,067  

2,165  

—  

—  

—  

1,564  

23,029  

103,275  

76  

—  

78  

(31)  

(16,779)  

(11,774)  

13,568

8,317

93,744

$

1,136,341   $

11,150   $

15,215,405   $

553,040   $

(3,238,227)   $

13,677,709

130

 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

As of December 31, 2016

(in thousands)

Property Type
Internet Gateway Data Centers

Data Centers

Technology Manufacturing

Technology Office

Other

Land

Acquired 
Ground 
Lease

Buildings and 
Improvements (1)

Tenant 
Improvements

Accumulated 
Depreciation 
and 
Amortization

109,083   $

—   $

1,834,052   $

93,472   $

(674,823)   $

610,007  

20,199  

5,368  

2,165  

10,014  

1,321  

—  

—  

8,254,108  

431,444  

(1,932,127)  

57,765  

43,574  

78,026  

6,333  

1,460  

78  

(24,595)  

(21,407)  

(15,557)  

Net 
Investment 
in Properties

1,361,784

7,373,446

61,023

28,995

64,712

746,822   $

11,335   $

10,267,525   $

532,787   $

(2,668,509)   $

8,889,960

$

$

(1)

Balances include, as of December 31, 2017 and 2016 , $1.4 billion and $0.7 billion of direct and accrued costs associated with development in progress,
respectively.

Acquisitions

We acquired the following real estate during the years ended December 31, 2017 and 2016 (excluding real estate already discussed in Note 3):

2017
Acquisitions

Property Type

Land Parcels (1)

Data Centers

Technology Manufacturing

Amount 
(in millions) (2)

$

$

55.3

346.2

14.3

415.8

(1) Represents currently vacant land which is not included in our operating property count.
(2) Purchase price in U.S. dollars and excludes capitalized closing costs. Each of these acquisitions was accounted for as an asset acquisition pursuant to the

adoption of ASU 2017-01 on January 1, 2017.

The table below reflects the purchase price allocation for the above properties acquired in 2017 (in thousands):

Property Type

Land

Buildings and
Improvements

Tenant
Improvements

Above-Market
Leases

In-Place
Leases

Below-Market
Leases

Land Parcels

Data Centers

Technology Manufacturing

  $

55,229   $

—   $

—   $

—   $

—  

$

—   $

20,431  

11,950  

275,374  

1,539  

1,506  

76  

21,043  

28,656  

—  

1,455  

(811)  

(684)  

Acquisition
Date Fair
Value

55,229

346,199

14,336

  $

87,610   $

276,913   $

1,582   $

21,043   $

30,111  

$

(1,495)   $

415,764

Weighted average remaining intangible
amortization life (in months)

  65

  81

80

131

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
   
Table of Contents

Index to Financial Statements

2016
Acquisitions

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Land Parcels (1)

Property Type

Amount 
(in millions)

$

47.6

(1) Represents currently vacant land which is not included in our operating property count. We completed four acquisitions of land parcels in the three months

ended September 30, 2016 in Northern Virginia, Dallas and Chicago. Excludes capitalized closing costs on land acquisitions.

Held
for
Sale

As of December 31, 2017 , we have identified eight  properties that met the criteria to be classified as held for sale. As of  December 31, 2017 , the  eight
 properties had an aggregate carrying value of  $139.5 million  within total assets and  $5.0 million  within total liabilities and are shown as assets held for sale and
obligations associated with assets held for sale on the consolidated balance sheet, respectively. As of December 31, 2016, we had identified three  properties that
met the criteria to be classified as held for sale. As of December 31, 2016, the  three  properties had an aggregate carrying value of  $56.1 million  within total
assets and  $2.6 million  within total liabilities and are shown as assets held for sale and obligations associated with assets held for sale on the consolidated balance
sheet, respectively. The properties are not representative of a significant component of our portfolio, nor do the potential sales represent a significant shift in our
strategy. In addition, we evaluated the carrying value of the properties identified as held for sale to ensure the carrying value is recoverable in light of a potentially
shorter holding period. As a result of our evaluation, during the year ended  December 31, 2017 , we recognized  $29.0 million  of impairment charges on  three
 properties located in the United States to reduce the carrying values to the estimated fair values less costs to sell. The fair values of the  three  properties were
based on comparable sales price data (Level 2 under the fair value hierarchy). There were  no  impairment charges for the years ended December 31, 2016 and
2015.

Dispositions

We sold the following real estate properties during the years ended December 31, 2017 and 2016 :

2017
Dispositions

Location

8025 North Interstate 35
44874 Moran Road (1)

1 Solutions Parkway

Metro Area

Austin

Date Sold

August 10, 2017

  Northern Virginia  

October 6, 2017

St. Louis

November 28, 2017

Gross Proceeds
(in millions)

Gain on Sale
(in millions)

$

$

20.2  

$

34.0  

37.1  

91.3  

$

9.6

15.6

14.7

39.9

(1) The property was held in a consolidated joint venture in which the Company owned a 75% interest. The Company recognized a gain on the sale of

approximately $11.7 million , net of noncontrolling interests.

On February 9, 2018, the Company closed on the sale of 34551 Ardenwood Boulevard, a 323,000 square foot technology manufacturing property in Silicon

Valley for approximately $73 million . The Company expects to recognize a gain on the sale of approximately $25 million in the first quarter of 2018. The property
was classified as held for sale as of  December 31, 2017 .

132

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

On January 25, 2018, the Company closed on the sale of 200 Quannapowitt Parkway, a substantially vacant, 211,000 square foot data center redevelopment

project in Boston for $15 million . The Company expects to recognize a loss on the sale of approximately $0.4 million in the first quarter of 2018. The property
was classified as held for sale as of  December 31, 2017 .

2016
Dispositions

Location

Metro Area

Date Sold

47700 Kato Road and 1055 Page
Avenue

Data center portfolio (1)

114 Rue Ambroise Croizat (2)

Silicon Valley

January 21, 2016

Various

Paris

July 11, 2016

August 1, 2016

Gross Proceeds (in
millions)

Gain on Sale (in
millions)

$

$

37.5  

$

114.5  

212.0  

364.0  

$

1.0

24.5

144.3

169.8

(1) On July 11, 2016, the Company closed on the sale of a four -property data center portfolio, including two in St. Louis and two in Northern Virginia, totaling

over 454,000 square feet for approximately $114.5 million . The Company recognized a gain on the sale of approximately $24.5 million in the third quarter of
2016. The four properties were classified as held for sale as of June 30, 2016.

(2) The Company granted Equinix an option to acquire the Company's facility in 114 rue Ambroise Croizat in Paris. Equinix elected to exercise its option to
acquire the Paris property, and on July 2, 2016, the Company entered into an agreement to sell the property to Equinix for approximately €190 million (or
approximately $212 million based on the exchange rate as of August 1, 2016). The Paris property sale closed on August 1, 2016. The Company recognized a
gain on the sale of approximately $144.3 million in the third quarter of 2016. This property was classified as held for sale as of June 30, 2016.

133

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

5. Investments in Unconsolidated Joint Ventures

As of December 31, 2017 , our investments in unconsolidated joint ventures consist of effective: 50% interests in four joint ventures that own data center
buildings in Seattle, Hong Kong, Tokyo, and Osaka; 20% interests in two joint ventures, one of which owns 10 data center properties with an investment fund
managed by Prudential Real Estate Investors (PREI®) and the other which owns one data center property with an affiliate of Griffin Capital Essential Asset REIT,
Inc. (GCEAR) and a 17% interest in a joint venture that owns a data center property at 1101 Space Park Drive in Santa Clara.

On November 1, 2017, the Company formed a joint venture with Mitsubishi Corporation to provide data center solutions in Japan. The Company contributed

its recently completed data center development project in Osaka, cash and working capital for a 50% interest in the joint venture. The Mitsubishi Corporation
contributed two existing data center facilities in the western Tokyo suburb of Mitaka for the remaining 50% interest.

134

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

The following tables present summarized financial information for our joint ventures for the years ended December 31, 2017 , 2016 , and 2015 (in

thousands):

2017

Unconsolidated Joint Ventures

2001 Sixth Avenue

2020 Fifth Avenue

33 Chun Choi Street (Hong Kong)

Mitsubishi

PREI ®

GCEAR

1101 Space Park Drive

Total Unconsolidated Joint Ventures

Our investment in and share of equity in
earnings of unconsolidated joint ventures

2016

Unconsolidated Joint Ventures

2001 Sixth Avenue

2020 Fifth Avenue

33 Chun Choi Street (Hong Kong)

PREI ®

GCEAR

1101 Space Park Drive

Total Unconsolidated Joint Ventures

Our investment in and share of equity in
earnings of unconsolidated joint ventures

2015

Unconsolidated Joint Ventures

2001 Sixth Avenue

2020 Fifth Avenue

33 Chun Choi Street (Hong Kong)

PREI ®

GCEAR

Total Unconsolidated Joint Ventures

Our investment in and share of equity in
earnings of unconsolidated joint ventures

% 
Ownership

Net Investment 
in Properties

Total 
Assets

Mortgage 
Loans

Total 
Liabilities

Equity / 
(Deficit)

Revenues

Property 
Operating 
Expense

Net 
Operating 
Income

Net 
Income 
(Loss)

26,933

  $

50,481

  $

134,472

  $

138,564

  $

(88,083)

  $

49,369

  $

(16,719)

  $

32,650

  $

20,833

45,309

54,594

47,000

133,435

192,071

—  

47,249

5,598

7,345

186,473

325,977

452,063

221,851

288,962

163,101

399,967

456,912

207,687

285,050

171,862

114,376

151,191

101,680

104,220

15,953

1,061,950

17,694
  $ 1,375,006

—  

236

  $

712,690

  $

869,879

46,971

17,458

9,088

19,235

7,927

41,464

18,924

5,958

(1,820)

(6,504)

(4,218)

(7,978)

(7,362)

(4,629)

7,268

12,731

3,709

33,486

11,562

1,329

  $

  $

505,127

  $

151,965

  $

(49,230)

  $

102,735

163,477

% 
Ownership

Net Investment 
in Properties

Total 
Assets

Mortgage 
Loans

Total 
Liabilities

Equity / 
(Deficit)

Revenues

Property 
Operating 
Expense

Net 
Operating 
Income

Net 
Income 
(Loss)

27,342

  $

43,258

  $

101,394

  $

106,241

  $

(62,983)

  $

45,518

  $

(15,574)

  $

29,944

  $

16,374

45,973

134,249

409,876

116,949

6,839

55,005

184,855

468,298

162,863

8,415

47,000

—  

207,270

101,477

—  

47,612

3,291

288,325

104,393

135

7,393

181,564

179,973

58,470

8,280

8,788

18,856

41,075

19,742

3,539

(1,500)

(6,636)

(8,503)

(7,808)

(4,105)

7,288

12,220

32,572

11,934

(566)

  $

741,228

  $

922,694

  $

457,141

  $

549,997

  $

  $

372,697

  $

137,518

  $

(44,126)

  $

93,392

106,402

% 
Ownership

Net Investment 
in Properties

Total 
Assets

Mortgage 
Loans

Total 
Liabilities

Equity / 
(Deficit)

Revenues

Property 
Operating 
Expense

Net 
Operating 
Income

Net 
Income 
(Loss)

4,881

5,467

1,108

13,889

(1,962)

(272)

43,944

25,516

  $

  $

4,821

6,315

13,615

(1,396)

(1,515)

38,214

17,104

  $

  $

33,757

  $

44,732

  $

102,998

  $

107,807

  $

(63,075)

  $

43,734

  $

(15,205)

  $

28,529

  $

14,171

46,633

55,257

47,000

138,742

179,525

—  

47,857

4,173

7,400

175,352

419,498

481,175

208,000

293,276

187,898

119,952

175,301

102,025

70,104

8,474

17,700

40,011

19,730

(1,177)

(5,358)

(6,157)

(8,249)

105,197

558,310

  $

  $

377,679

  $

129,649

  $

(36,146)

  $

106,107

  $

758,582

  $

935,990

  $

460,023

  $

7,297

12,342

33,854

11,481

93,503

  $

  $

4,840

4,480

15,121

(1,262)

37,350

15,491

50.00%   $
50.00%  
50.00%  
50.00%  
20.00%  
20.00%  
17.00%  

  $

50.00%   $
50.00%  
50.00%  
20.00%  
20.00%  
17.00%  

50.00%   $
50.00%  
50.00%  
20.00%  
20.00%  

The amounts reflected in the tables above, except for our investment in and share of equity in earnings of unconsolidated joint ventures, are based on the

historical financial information of the individual joint ventures. The debt of our unconsolidated joint ventures generally are non-recourse to us, except for
customary exceptions pertaining to such matters as intentional misuse of funds, environmental conditions, and material misrepresentations.

135

 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Differences between the Company’s investments in the joint ventures and the amount of the underlying equity in net assets of the joint ventures are due to

basis differences resulting from the Company’s equity investment recorded at its historical basis versus the fair value of the Company’s contributed interest in the
joint ventures. Our proportionate share of the earnings or losses related to these unconsolidated joint ventures is reflected as equity in earnings of unconsolidated
joint ventures on the accompanying consolidated income statements.

136

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

6. Acquired Intangible Assets and Liabilities

The following summarizes our acquired intangible assets (real estate intangibles, comprised of acquired in-place lease value and tenant relationship value

along with acquired above-market lease value) and intangible liabilities (acquired below-market lease value) as of December 31, 2017 and 2016 .

(Amounts in thousands)
Real Estate Intangibles:

Acquired in-place lease value:

Gross amount

Accumulated amortization

Net

Tenant relationship value:

Gross amount

Accumulated amortization

Net

Trade name:

Gross amount

Accumulated amortization

Net

Acquired above-market leases:

Gross amount

Accumulated amortization

Net

Acquired below-market leases:

Gross amount

Accumulated amortization

Net

Balance as of

December 31, 2017

  December 31, 2016

$

$

$

$

$

$

$

$

$

$

1,473,515   $

(613,948)  

859,567   $

1,978,277   $

(169,919)  

1,808,358   $

—   $

—  

—   $

294,514   $

(110,139)  

184,375   $

469,119   $

(219,654)  

249,465   $

896,693

(517,443)

379,250

971,519

(82,069)

889,450

7,300

(7,300)

—

110,142

(87,961)

22,181

283,899

(202,000)

81,899

Amortization of acquired below-market lease value, net of acquired above-market lease value, resulted in a change in rental revenues of $(2.2) million , $8.3

million and $9.3 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. The expected average remaining lives for acquired below-market
leases and acquired above-market leases is 9.2 years and 3.9 years, respectively, as of December 31, 2017 . Estimated annual amortization of acquired below-
market lease value, net of acquired above-market lease value, for each of the five succeeding years and thereafter, commencing January 1, 2018 is as follows:

(Amounts in thousands)
2018

2019

2020

2021

2022

Thereafter

Total

$

$

(26,622)

(15,372)

(3,151)

2,055

9,054

99,126

65,090

137

 
 
   
 
   
 
   
 
   
 
   
 
   
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Amortization of acquired in-place lease value (a component of depreciation and amortization expense) was $101.2 million , $52.6 million and $46.2 million

for the years ended December 31, 2017 , 2016 and 2015 , respectively. The expected average amortization period for acquired in-place lease value is 6.6 years as of
December 31, 2017 . The weighted average remaining contractual life for acquired leases excluding renewals or extensions is 6.1 years as of December 31, 2017 .
Estimated annual amortization of acquired in-place lease value for each of the five succeeding years and thereafter, commencing January 1, 2018 is as follows:

(Amounts in thousands)
2018

2019

2020

2021

2022

Thereafter

Total

$

$

209,091

147,137

111,205

86,583

64,666

240,885

859,567

Amortization of tenant relationship value and trade names (a component of depreciation and amortization expense) was approximately $85.9 million and $0 ,

respectively, for the year ended December 31, 2017 , $67.2 million and $6.9 million , respectively, for the year ended December 31, 2016 and $14.5 million and
$0.4 million , respectively for the year ended December 31, 2015.  During the quarter ended June 30, 2016, management of the Company decided to retire the Telx
trade name.  Accordingly, the Company wrote off the net remaining balance of approximately  $6.1 million . The weighted average remaining contractual life for
tenant relationship value is 15.3 years . Estimated annual amortization of tenant relationship value for each of the five succeeding years and thereafter,
commencing January 1, 2018 is as follows:

(Amounts in thousands)
2018

2019

2020

2021

2022

Thereafter

Total

$

123,786

123,786

123,786

123,786

123,792

1,189,422

$

1,808,358

138

 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

7. Debt of the Company

In this Note 7, the “Company” refers only to Digital Realty Trust, Inc. and not to any of its subsidiaries.

The Company itself does not have any indebtedness. All debt is held directly or indirectly by the Operating Partnership.

Guarantee
of
Debt

The Company guarantees the Operating Partnership’s obligations with respect to its 5.875% notes due 2020 ( 5.875% 2020 Notes), 3.400% notes due 2020 (
3.400% 2020 Notes), 5.250% notes due 2021 (2021 Notes), 3.950% notes due 2022 ( 3.950% 2022 Notes) , 3.625% notes due 2022 ( 3.625% 2022 Notes), 2.750%
 notes due 2023 ( 2.750% 2023 Notes),  4.750%  notes due 2025 ( 4.750% 2025 Notes) and  3.700%  notes due 2027 (2027 Notes). The Company and the
Operating Partnership guarantee the obligations of Digital Stout Holding, LLC, a wholly owned subsidiary of the Operating Partnership, with respect to its 4.750%
notes due 2023 ( 4.750% 2023 Notes), 2.750%  notes due 2024 ( 2.750% 2024 Notes), 4.250% notes due 2025 ( 4.250% 2025 Notes) and  3.300%  notes due 2029
(2029 Notes) and the obligations of Digital Euro Finco, LLC, a wholly owned subsidiary of the Operating Partnership, with respect to its  2.625%  notes due 2024 (
2.625% 2024 Notes) and Floating Rate Guaranteed Notes due 2019 (2019 Notes). The Company is also the guarantor of the Operating Partnership’s and its
subsidiary borrowers’ obligations under the global revolving credit facility and unsecured term loans.

139

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

8. Debt of the Operating Partnership

A summary of outstanding indebtedness of the Operating Partnership as of December 31, 2017 and 2016 is as follows (in thousands):

Indebtedness
Global revolving credit facility

Deferred financing costs, net

Global revolving credit facility, net

Unsecured Term Loans

Unsecured term loan — 5-year

Unsecured term loan — 7-year

Deferred financing costs, net

Unsecured term loans, net

Unsecured senior notes:

Prudential Shelf Facility:

Series E

Total Prudential Shelf Facility

Senior Notes:

Floating rate notes due 2019
5.875% notes due 2020

3.400% notes due 2020

5.250% notes due 2021

5.875% notes due 2021

3.950% notes due 2022

3.625% notes due 2022

2.750% notes due 2023

5.625% notes due 2023

4.750% notes due 2023

2.625% notes due 2024

2.750% notes due 2024

4.250% notes due 2025

4.750% notes due 2025

3.700% notes due 2027

3.300% notes due 2029

Unamortized discounts

Total senior notes, net of discount

Deferred financing costs, net

Total unsecured senior notes, net of discount and
deferred financing costs

Mortgage loans:

731 East Trade Street

Secured note due 2023
Unamortized net premiums

Total mortgage loans, including premiums

Deferred financing costs, net

Total mortgage loans, including premiums and net of deferred
financing costs
Total indebtedness

Interest Rate at
December 31, 2017

Maturity Date

Principal Outstanding
December 31, 2017

Principal Outstanding
December 31, 2016

Various

(1)  

Jan 15, 2020

(1)  

$

$

558,191 (2)  
(7,245)  
550,946  

Various

Various

(3)(4)  

(3)(4)  

Jan 15, 2021

Jan 15, 2023

5.730%

Jan 20, 2017

(6)  

EURIBOR +
0.500%

5.875%

3.400%

5.250%

5.875%

3.950%

3.625%

2.750%

5.625%

4.750%

2.625%

2.750%

4.250%

4.750%

3.700%

3.300%

May 22, 2019

Feb 1, 2020

Oct 1, 2020

Mar 15, 2021

Sep 15, 2021

Jul 1, 2022

Oct 1, 2022

Feb 1, 2023

Jun 15, 2023

Oct 13, 2023

Apr 15, 2024

Jul 19, 2024

Jan 17, 2025

Oct 1, 2025

Aug 15, 2027

Jul 19, 2029

8.22%

LIBOR + 1.100% (4)  

Jul 1, 2020

Mar 1, 2023

1,125,117 (5)  

300,000 (5)  
(4,784)  
1,420,333  

—  
—  

150,063 (7)  
500,000  
500,000  
400,000  

— (9)  

500,000  
300,000  
350,000  

— (9)  

405,390 (8)  

720,300 (7)  

337,825 (8)  

540,520 (8)  
450,000  
1,000,000  

472,955 (8)  
(18,508)  
6,608,545  
(37,788)  

6,570,757  

2,370  
104,000  
241  
106,611  
(29)  

210,077 (2)  
(10,868)  
199,209  

1,188,498 (5)  

300,000 (5)  
(6,137)  
1,482,361  

50,000  
50,000  

—  
500,000  
500,000  
400,000  
—  
500,000  
300,000  
—  
—  

370,200 (8)  

631,020 (7)  

—  

493,600 (8)  
450,000  
—  
—  
(15,649)  
4,129,171  
(25,374)  

4,153,797  

2,916  
—  
334  
3,250  
(10)  

106,582  
8,648,618  

$

3,240  
5,838,607  

$

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
140

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(1)

(2)

The interest rate for borrowings under the global revolving credit facility equals the applicable index plus a margin of 100 basis points, which is based on
the current credit ratings of our long-term debt. An annual facility fee of 20 basis points, which is based on the credit ratings of our long-term debt, is due
and payable quarterly on the total commitment amount of the facility. Two six -month extensions are available, which we may exercise if certain
conditions are met.
Balances as of December 31, 2017 and December 31, 2016 are as follows (balances, in thousands):

Denomination of Draw
Floating
Rate
Borrowing
(a)

U.S. dollar ($)

British pound sterling (£)

Euro (€)

Hong Kong dollar (HKD)

Japanese yen (JPY)

Singapore dollar (SGD)

Canadian dollar (CAD)

Total

Base
Rate
Borrowing
(b)

U.S. dollar ($)

Total borrowings

Balance as of
December 31, 2017  

Weighted-average 
interest rate

Balance as of
December 31, 2016

Weighted-average 
interest rate

$

$

$

$

400,000  
18,918 (c)
31,213 (c)
4,100 (c)
65,890 (c)
—  
23,070 (c)
543,191  

15,000  

558,191  

2.48%   $

1.50%  

0.62%  

2.20%  

0.96%  

—%  

2.36%  

2.15%   $

105,000  
11,106 (d)
15,250 (d)
1,728 (d)
54,273 (d)
11,186 (d)
11,534 (d)
210,077  

4.50%   $

2.21%   $

—  

210,077  

1.67%

1.25%

0.63%

1.66%

0.92%

1.52%

1.92%

1.39%

—%

1.39%

(a)

(b)
(c)

(d)

The interest rates for floating rate borrowings under the global revolving credit facility currently equal the applicable index plus a margin of
100 basis points, which is based on the credit rating of our long-term debt.
The interest rates for base rate borrowings under the global revolving credit facility equal the U.S. Prime Rate.
Based on exchange rates of $1.35 to £1.00, $1.20 to €1.00 , $0.13 to 1.00 HKD, $0.01 to 1.00 JPY and $0.80 to 1.00 CAD, respectively, as of
December 31, 2017 .
Based on exchange rates $1.23 to £1.00, of $1.05 to €1.00 , $0.13 to 1.00 HKD, $0.01 to 1.00 JPY, $0.69 to 1.00 SGD and $0.74 to 1.00 CAD,
respectively, as of December 31, 2016 .

(3)

(4)

Interest rates are based on our current senior unsecured debt ratings and are 110 basis points and 155 basis points over the applicable index for floating
rate advances for the  5 -Year Term Loan and the  7 -Year Term Loan, respectively.
We have entered into interest rate swap agreements as a cash flow hedge for interest generated by the U.S. dollar, Singapore dollar, British pound sterling
and Canadian dollar tranches of the unsecured term loans along with the secured note due 2023. See Note 15. "Derivative Instruments" for further
information. 

141

 
 
 
 
 
 
   
 
 
 
 
 
   
 
 
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(5)

Balances as of December 31, 2017 and December 31, 2016 are as follows (balances, in thousands):

Denomination of Draw
U.S. dollar ($)

British pound sterling (£)

Singapore dollar (SGD)

Australian dollar (AUD)

Hong Kong dollar (HKD)

Canadian dollar (CAD)

Japanese yen (JPY)

Total

Balance as of
December 31, 2017  
606,911  
$
229,011 (a)
233,788 (a)
179,841 (a)
85,762 (a)
78,357 (a)
11,447 (a)
1,425,117  

$

Weighted-average 
interest rate

2.78% (b)
1.59% (b)
2.17%  

2.79%  

2.20%  
2.44% (b)
1.05%  

Balance as of
December 31, 2016  
710,911  
$
209,132 (c)
222,824 (c)
170,325 (c)
86,029 (c)
73,294 (c)
15,983  

2.42% (b)

$

1,488,498  

Weighted-average 
interest rate

1.99% (d)
1.36% (d)
1.76% (d)
2.72%  

1.77%  
2.00% (d)
0.98%  

1.93% (d)

(a)

(b)

(c)

(d)

Based on exchange rates of $1.35 to £1.00 , $0.75 to 1.00 SGD, $0.78 to 1.00 AUD, $0.13 to 1.00 HKD, $0.80 to 1.00 CAD and $0.01 to 1.00
JPY, respectively, as of December 31, 2017 .
As of December 31, 2017 , the weighted-average interest rate reflecting interest rate swaps was 2.72% (U.S. dollar), 1.89% (British pound
sterling), 1.88% (Canadian dollar) and 2.41% (Total). See Note 15 for further discussion on interest rate swaps.
Based on exchange rates of $1.23  to  £1.00 ,  $0.69 to 1.00 SGD, $0.72 to 1.00 AUD, $0.13  to 1.00 HKD,  $0.74  to 1.00 CAD and  $0.01
 to 1.00 JPY, respectively, as of December 31, 2016 .
As of December 31, 2016 , the weighted-average interest rate reflecting interest rate swaps was 2.45% (U.S. dollar), 1.89% (British pound
sterling), 1.90% (Singapore dollar), 1.88% (Canadian dollar) and 2.23% (Total). See Note 15 for further discussion on interest rate swaps.

(6)
(7)
(8)
(9)

Unsecured note paid in full at maturity.
Based on exchange rates of $1.20 to €1.00 as of  December 31, 2017 and $1.05 to €1.00 as of December 31, 2016 .
Based on exchange rates of $1.35 to £1.00 as of December 31, 2017 and $1.23 to £1.00 as of December 31, 2016 .
In connection with the DFT merger, Digital Realty Trust, Inc. was added as a guarantor of the DFT Operating Partnership's 5.875% 2021 Notes and
5.625% 2023 Notes. We recorded the notes at fair value on the date of the merger as follows: $620.5 million for the 5.875% 2021 Notes and $266.3
million for the 5.625% 2023 Notes. These notes were redeemed in September 2017 and October 2017 for $884.9 million in the aggregate resulting in a
gain on early extinguishment of debt of approximately  $2.0 million .

Global
Revolving
Credit
Facility

On January 15, 2016, we refinanced our global revolving credit facility and entered into a global senior credit agreement for a $2.0 billion senior unsecured

revolving credit facility, which we refer to as the global revolving credit facility, that replaced the $2.0 billion revolving credit facility executed on August 15,
2013, as amended. The global revolving credit facility has an accordion feature that would enable us to increase the borrowing capacity of the credit facility to up
to $2.5 billion , subject to the receipt of lender commitments and other conditions precedent. The refinanced facility matures on January 15, 2020 , with two six -
month extension options available. The interest rate for borrowings under the global revolving credit facility equals the applicable index plus a margin which is
based on the credit ratings of our long-term debt and is currently 100 basis points. An annual facility fee on the total commitment amount of the facility, based on
the credit ratings of our long-term debt, currently 20 basis points, is payable quarterly. Funds may be drawn in U.S., Canadian, Singapore, Australian and Hong
Kong dollars, as well as Euro, British pound sterling and Japanese yen. As of December 31, 2017 , interest rates are based on 1-month LIBOR, 1-month GBP
LIBOR, 1-month EURIBOR, 1-month HIBOR, 1-month JPY LIBOR and 1-month CDOR, plus a margin of 1.00% . The facility also bore a base borrowing rate of 
4.50%  (USD) which is based on the U.S. Prime Rate. We have used and intend to use available borrowings under the global revolving credit facility to acquire
additional properties, fund development opportunities and for general working capital and other corporate purposes, including potentially for the repurchase,
redemption or retirement of outstanding debt or equity securities. As of December 31, 2017 , approximately $22.8 million of letters of credit were issued.

142

 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

The global revolving credit facility contains various restrictive covenants, including limitations on our ability to incur additional indebtedness, make certain
investments or merge with another company, and requirements to maintain financial coverage ratios, including with respect to unencumbered assets. In addition,
the global revolving credit facility restricts Digital Realty Trust, Inc. from making distributions to its stockholders, or redeeming or otherwise repurchasing shares
of its capital stock, after the occurrence and during the continuance of an event of default, except in limited circumstances including as necessary to enable Digital
Realty Trust, Inc. to maintain its qualification as a REIT and to minimize the payment of income or excise tax. As of December 31, 2017 , we were in compliance
with all of such covenants.

Unsecured
Term
Loans

On January 15, 2016, we refinanced our senior unsecured multi-currency term loan facility and entered into a term loan agreement, which governs (i) a $1.25

billion 5 -year senior unsecured term loan, which we refer to as the 5 -Year Term Loan, and (ii) a $300 million 7 -year senior unsecured term loan, which we refer
to as the 7-Year Term Loan. The 2016 term loan agreement replaced the $1.0 billion term loan agreement executed on April 16, 2012, as amended. The  5 -Year
Term Loan matures on January 15, 2021 and the  7 -Year Term Loan matures on January 15, 2023. In addition, we have the ability from time to time to increase
the aggregate size of lending under the term loan agreement from $1.55 billion to up to $1.8 billion , subject to receipt of lender commitments and other conditions
precedent. Interest rates are based on our senior unsecured debt ratings and are currently  110  basis points and  155  basis points over the applicable index for
floating rate advances for the  5 -Year Term Loan and the  7 -Year Term Loan, respectively. Funds may be drawn in U.S., Canadian, Singapore, Australian and
Hong Kong dollars, as well as Euro, British pound sterling and Japanese yen. Based on exchange rates in effect at  December 31, 2017 , the balance outstanding is
approximately  $1.4 billion , excluding deferred financing costs. We have used borrowings under the term loans for acquisitions, repayment of indebtedness,
development, working capital and general corporate purposes. The covenants under the term loans are consistent with our global revolving credit facility and, as of 
December 31, 2017 , we were in compliance with all of such covenants.

143

 
Table of Contents

Index to Financial Statements

Senior
Notes

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Senior Notes and Annual
Interest Rate

Date Issued

  Maturity Date  

Amount Issued
(in millions,
local currency)

Net Proceeds (in
millions) (1)

Interest Payment
Dates

Initial Issuer (2)

Floating Rate Guaranteed Notes
due 2019 (5)

  May 22, 2017

  May 22, 2019   €

125.0   $

140.1  

5.875% Notes due 2020

Jan 28, 2010

Feb 1, 2020

  $

500.0  

487.1  

3.400% Notes due 2020

Oct 1, 2015

  Oct 1, 2020

  $

500.0  

494.5  

5.250% Notes due 2021

  Mar 8, 2011

  Mar 15, 2021   $

400.0  

395.5  

3.950% Notes due 2022

Jun 23, 2015

Jul 1, 2022

  $

500.0  

491.8  

3.625% Notes due 2022

Sep 24, 2012

  Oct 1, 2022

  $

300.0  

293.1  

2.750% Notes due 2023

Aug 7, 2017

Feb 1, 2023

  $

350.0  

346.9  

4.750% Notes due 2023

Apr 1, 2014

  Oct 13, 2023

  £

300.0  

490.9  

2.625% Notes due 2024

Apr 15, 2016

  Apr 15, 2024   €

2.750% Notes due 2024

Jul 21, 2017

Jul 19, 2024

4.250% Notes due 2025

Jan 18, 2013

Jan 17, 2025

  £

  £

600.0  

250.0  

670.3  

321.3  

400.0  

624.2  

4.750% Notes due 2025

Oct 1, 2015

  Oct 1, 2025

  $

450.0  

445.8  

3.700% Notes due 2027

Aug 7, 2017

  Aug 15, 2027   $

1,000.0  

3.300% Notes due 2029

Jul 21, 2017

Jul 19, 2029

  £

350.0  

991.0  

448.6  

Quarterly,
commencing August
22, 2017
Semi-annually,
commencing August 1,
2010
Semi-annually,
commencing April 1,
2016
Semi-annually,
commencing
September 15, 2011
Semi-annually,
commencing January
1, 2016
Semi-annually,
commencing April 1,
2016
Semi-annually,
commencing February
1, 2018
Semi-annually,
commencing October
13, 2014
Semi-annually,
commencing October
15, 2016
Annually, commencing
July 19, 2018
Semi-annually,
commencing July 17,
2013
Semi-annually,
commencing April 1,
2016
Semi-annually,
commencing February
15, 2018
Annually, commencing
July 19, 2018

  Digital Euro Finco, LLC (3)

  Digital Realty Trust, L.P.

  Digital Delta Holdings, LLC (4)

  Digital Realty Trust, L.P.

  Digital Realty Trust, L.P.

  Digital Realty Trust, L.P.

  Digital Realty Trust, L.P.

  Digital Stout Holding, LLC (3)

  Digital Euro Finco, LLC (3)

  Digital Stout Holding, LLC (3)

  Digital Stout Holding, LLC (3)

  Digital Delta Holdings, LLC (4)

  Digital Realty Trust, L.P.

  Digital Stout Holding, LLC (3)

(1)

(2)

(3)
(4)

Amounts are in U.S. dollars, based on the exchange rate on the date of issuance. Net proceeds are equal to principal amount less initial purchaser discount
and other debt issuance costs.
Digital Realty Trust, Inc. guarantees the senior notes issued by Digital Realty Trust, L.P. Both Digital Realty Trust, L.P. and Digital Realty Trust, Inc.
guarantee the senior notes issued by Digital Stout Holding, LLC and Digital Euro Finco, LLC.
A wholly owned subsidiary of Digital Realty Trust, L.P.
Initially a wholly owned subsidiary of Digital Realty Trust, Inc., pursuant to the terms of the indenture, following the consummation of the Telx
Acquisition, on October 13, 2015, Digital Delta Holdings, LLC merged with and into Digital Realty Trust, L.P., with Digital Realty Trust, L.P. surviving
the merger and assuming Digital Delta Holdings, LLC’s obligations under the 3.400% 2020 Notes, the 4.750% 2025 Notes, the related indenture and
registration rights agreement by operation of law.

144

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(5)

The 2019 Notes bear interest at a rate per annum, reset quarterly, equal to three-month EURIBOR plus 0.50% (currently 0.17%).

The indentures governing each of the senior notes contain certain covenants, including (1) a leverage ratio not to exceed 60% , (2) a secured debt leverage

ratio not to exceed 40% and (3) an interest coverage ratio of greater than 1.50 , and also requires us to maintain total unencumbered assets of not less than 150% of
the aggregate principal amount of unsecured debt. At December 31, 2017 , we were in compliance with each of these financial covenants.

The table below summarizes our debt maturities and principal payments as of December 31, 2017 (in thousands):  

2018

2019

2020

2021

2022

Thereafter

Subtotal

Unamortized discount

Unamortized premium

Total

Global Revolving 
Credit Facility (1)

Unsecured 
Term Loans

Senior Notes

Mortgage 
Loans

Total 
Debt

$

$

$

—   $

—  

558,191  

—  

—  

—  

—   $

—  

—  

1,125,117  

—  

300,000  

558,191   $

1,425,117   $

—  

—  

—  

—  

—   $

593   $

150,063  

1,000,000  

400,000  

800,000  

4,276,990  

6,627,053   $

(18,508)  

—  

644  

1,133  

—  

—  

104,000  

106,370   $

—  

241  

593

150,707

1,559,324

1,525,117

800,000

4,680,990

8,716,731

(18,508)

241

558,191   $

1,425,117   $

6,608,545   $

106,611   $

8,698,464

(1)

Subject to two six -month extension options exercisable by us. The bank group is obligated to grant the extension options provided we give proper notice,
we make certain representations and warranties and no default exists under the global revolving credit facility.

9. Income per Share

The following is a summary of basic and diluted income per share (in thousands, except share and per share amounts):

Net income available to common stockholders

Weighted average shares outstanding—basic

Potentially dilutive common shares:

Stock options

Unvested incentive units

Forward equity offering

Market performance-based awards

Weighted average shares outstanding—diluted

Income per share:

Basic

Diluted

Year Ended December 31,

2017

2016

2015

$

173,148   $

332,088   $

217,266

174,059,386  

149,953,662  

138,247,606

—  

141,136  

124,527  

570,049  

9,726  

71,031  

3,990  

641,279  

20,424

95,746

—

501,645

174,895,098  

150,679,688  

138,865,421

0.99   $

0.99   $

2.21   $

2.20   $

1.57

1.56

$

$

145

 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:

Weighted average of Operating Partnership common units not owned by Digital
Realty Trust, Inc.

Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Stock 

Potentially dilutive Series E Cumulative Redeemable Preferred Stock

Potentially dilutive Series F Cumulative Redeemable Preferred Stock

Potentially dilutive Series G Cumulative Redeemable Preferred Stock

Potentially dilutive Series H Cumulative Redeemable Preferred Stock

Potentially dilutive Series I Cumulative Redeemable Preferred Stock

Potentially dilutive Series J Cumulative Redeemable Preferred Stock

Year Ended December 31,

2017

2016

2015

3,996,550  

540,773  

—  

463,301  

2,261,153  

3,313,484  

2,263,799  

720,803  

2,406,018  

—  

2,880,254  

1,939,905  

2,652,503  

3,886,966  

2,655,607  

—  

2,658,291

—

4,301,438

2,727,962

3,730,042

5,465,987

1,235,063

—

13,559,863  

16,421,253  

20,118,783

10. Income per Unit

The following is a summary of basic and diluted income per unit (in thousands, except unit and per unit amounts):

Net income available to common unitholders

Weighted average units outstanding—basic

Potentially dilutive common units:

Stock options

Unvested incentive units

Forward equity offering

Market performance-based awards

Weighted average units outstanding—diluted

Income per unit:

Basic

Diluted

Year Ended December 31,

2017

2016

2015

$

176,918   $

337,386   $

220,343

178,055,936  

152,359,680  

140,905,897

—  

141,136  

124,527  

570,049  

9,726  

71,031  

3,990  

641,279  

20,424

95,746

—

501,645

178,891,648  

153,085,706  

141,523,712

0.99   $

0.99   $

2.21   $

2.20   $

1.56

1.55

$

$

146

 
 
 
 
 
 
 
 
 
 
   
   
 
   
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:

Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Units

Potentially dilutive Series E Cumulative Redeemable Preferred Units

Potentially dilutive Series F Cumulative Redeemable Preferred Units

Potentially dilutive Series G Cumulative Redeemable Preferred Units

Potentially dilutive Series H Cumulative Redeemable Preferred Units

Potentially dilutive Series I Cumulative Redeemable Preferred Units

Potentially dilutive Series J Cumulative Redeemable Preferred Units

Year Ended December 31,

2017

2016

2015

540,773  

—  

463,301  

2,261,153  

3,313,484  

2,263,799  

720,803  

9,563,313  

—  

2,880,254  

1,939,905  

2,652,503  

3,886,966  

2,655,607  

—  

—

4,301,438

2,727,962

3,730,042

5,465,987

1,235,063

—

14,015,235  

17,460,492

11. Income Taxes

Digital Realty Trust, Inc. has elected to be treated, and believes that it has been organized and has operated in a manner that has enabled it to qualify as a
REIT for federal income tax purposes. As a REIT, Digital Realty Trust, Inc. is generally not subject to corporate level federal income taxes on earnings distributed
currently to its stockholders. Since inception, Digital Realty Trust, Inc. has distributed at least 100% of its taxable income annually. As such, no provision for
federal income taxes has been included in the accompanying consolidated financial statements for the years ended December 31, 2017 , 2016 and 2015 .

The Operating Partnership is a partnership and is not required to pay federal income tax. Instead, taxable income is allocated to its partners, who include such

amounts on their federal income tax returns. As such, no provision for federal income taxes has been included in the Operating Partnership’s accompanying
consolidated financial statements.

We have elected taxable REIT subsidiary (“TRS”) status for some of our consolidated subsidiaries. In general, a TRS may provide services that would
otherwise be considered impermissible for REITs to provide and may hold assets that REITs cannot hold directly. Income taxes for TRS entities were accrued, as
necessary, for the years ended December 31, 2017 , 2016 and 2015 .

For our TRS entities and foreign subsidiaries that are subject to U.S. federal, state and foreign income taxes, deferred tax assets and liabilities are established

for temporary differences between the financial reporting basis and the tax basis of assets and liabilities at the enacted tax rates expected to be in effect when the
temporary differences reverse. A valuation allowance for deferred tax assets is provided if we believe it is more likely than not that the deferred tax asset may not
be realized, based on available evidence at the time the determination is made. An increase or decrease in the valuation allowance that results from a change in
circumstances that causes a change in our judgment about the realizability of the related deferred tax asset is included in income. Deferred tax assets (net of
valuation allowance) and liabilities were accrued, as necessary, for the years ended December 31, 2017 , 2016 and 2015 . As of December 31, 2017 , we had
deferred tax liabilities net of deferred tax assets of approximately $167.0 million primarily related to our foreign properties, classified in accounts payable and
other accrued expenses in the consolidated balance sheet. The majority of our net deferred tax liability relates to differences between the tax basis and book basis
of the assets acquired in the Sentrum Portfolio acquisition in 2012 and the European Portfolio Acquisition in July 2016. The valuation allowance against the
deferred tax assets at December 31, 2017 and 2016 relate primarily to net operating loss carryforwards attributable to certain foreign jurisdiction and the Telx
Acquisition, and deferred tax assets resulting from certain foreign real estate acquisition costs, which are not depreciated for tax purposes, but are deductible upon

147

 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

ultimate sale of the property. Given the indefinite holding period associated with these assets, realization of these deferred tax assets is not more-likely-than-not as
of December 31, 2017 and 2016 .

Deferred income tax assets and liabilities as of December 31, 2017 and 2016 were as follows (in thousands):

Gross deferred income tax assets:

Net operating loss carryforwards

Basis difference - real estate property

Basis difference - intangibles

Other - temporary differences

Total gross deferred income tax assets

Valuation allowance

Total deferred income tax assets, net of valuation allowance

Gross deferred income tax liabilities:

Basis difference - real estate property

Basis difference - intangibles

Straight-line rent

Other - temporary differences

Total gross deferred income tax liabilities

Net deferred income tax liabilities

2017

2016

$

77,227  

$

181,254  

506  

47,649  

306,636  

(46,302)  

260,334  

315,553  

65,921  

1,597  

44,241  

427,312  

$

166,978  

$

98,054

156,394

2,225

31,503

288,176

(45,628)

242,548

289,867

64,714

5,172

36,614

396,367

153,819

The 2017 Tax Legislation, enacted on December 22, 2017, reduced the corporate federal tax rate in the U.S. to 21%, effective upon enactment. As such,

deferred tax assets and liabilities are remeasured using the lower corporate federal tax rate at December 31, 2017. While we do not expect other material impacts,
the new tax rules are complex and lack developed administrative guidance. We continue to work with our tax advisors to analyze and determine the full impact that
the 2017 Tax Legislation as a whole will have on us.

148

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

12. Equity and Accumulated Other Comprehensive Loss, Net

(a)
Equity
Distribution
Agreements

On June 29, 2011, Digital Realty Trust, Inc. entered into equity distribution agreements, which we refer to as the 2011 Equity Distribution Agreements, with

each of Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., Credit Suisse Securities (USA) LLC, Deutsche Bank Securities Inc.
and Morgan Stanley & Co. LLC, or the Agents, under which it could issue and sell shares of its common stock having an aggregate offering price of up to $400.0
million from time to time through, at its discretion, any of the Agents as its sales agents. The sales of common stock made under the 2011 Equity Distribution
Agreements will be made in “at the market” offerings as defined in Rule 415 of the Securities Act. To date, Digital Realty Trust, Inc. has generated net proceeds of
approximately $342.7 million from the issuance of approximately 5.7 million common shares under the 2011 Equity Distribution Agreements at an average price
of $60.35 per share after payment of approximately $3.5 million of commissions to the sales agents and before offering expenses. No sales were made under the
program during the years ended December 31, 2017 and 2016 . As of December 31, 2017 , shares of common stock having an aggregate offering price of $53.8
million remained available for offer and sale under the program.

(b)
Forward
Equity
Sale

On May 20, 2016, Digital Realty Trust, Inc. completed an underwritten public offering of  12,500,000  shares of its common stock, all of which were offered

in connection with forward sale agreements it entered into with certain financial institutions acting as forward purchasers. On June 2, 2016, the underwriters
exercised their option in full to purchase an additional  1,875,000  shares of Digital Realty Trust, Inc.’s common stock from the forward purchasers. The forward
purchasers borrowed and sold an aggregate of  14,375,000  shares of Digital Realty Trust, Inc.’s common stock in the public offering. Digital Realty Trust, Inc. did
not receive any proceeds from the sale of our common stock by the forward purchasers in the public offering. On September 27, 2016, we physically settled a
portion of the forward sale agreements by issuing an aggregate of  12,000,000  shares of our common stock to the forward purchasers in exchange for net proceeds
of approximately  $1.1 billion . On May 19, 2017, we physically settled and issued the remaining  2,375,000  shares of our common stock to the forward
purchasers in exchange for net proceeds of approximately  $211.1 million .

149

Table of Contents

Index to Financial Statements

(c)
Redeemable
Preferred
Stock

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Date(s)
Issued

Initial Date to
Redeem (2)

  Share Cap (3)

Total
Liquidation
Value (in
thousands) (4)  

Annual
Dividend
Rate (5)

2017

2016

2017

2016

Shares Outstanding as of
December 31,

Balance (in thousands, net of
issuance costs) as of December
31,

  Sep 14, 2017   May 15, 2021  

0.6389035   $

201,250   $

1.65625  

8,050,000  

—   $

219,250   $

—

  Apr 5, 2012   Apr 5, 2017

0.6843000  

182,500  

1.65625  

—  

7,300,000  

—  

176,191

  Apr 9, 2013   Apr 9, 2018

0.7532000  

250,000  

1.46875  

10,000,000  

10,000,000  

241,468  

241,468

  Mar 26, 2014   Mar 26, 2019  

0.9632000  

365,000  

1.84375  

14,600,000  

14,600,000  

353,290  

353,290

  Aug 24, 2015   Aug 24, 2020  

0.7623100  

250,000  

1.58750  

10,000,000  

10,000,000  

242,012  

242,012

  Aug 7, 2017   Aug 7, 2022

0.4252100  

200,000  

1.31250  

  $ 1,448,750    

8,000,000  
50,650,000  

—  

41,900,000   $

193,540  
1,249,560   $

—

1,012,961

Preferred Stock (1)

6.625% Series C
Cumulative
Redeemable Perpetual
Preferred Stock
6.625% Series F
Cumulative
Redeemable Preferred
Stock (6)
5.875% Series G
Cumulative
Redeemable Preferred
Stock
7.375% Series H
Cumulative
Redeemable Preferred
Stock
6.350% Series I
Cumulative
Redeemable Preferred
Stock
5.250% Series J
Cumulative
Redeemable Preferred
Stock

(1)

(2)

(3)

All series of preferred stock do not have a stated maturity date and are not subject to any sinking fund or mandatory redemption provisions. Upon
liquidation, dissolution or winding up, each series of preferred stock will rank senior to Digital Realty Trust, Inc. common stock and on parity with the
other series of preferred stock. Holders of each series of preferred stock generally have no voting rights except for limited voting rights if Digital Realty
Trust, Inc. fails to pay dividends for six or more quarterly periods (whether or not consecutive) and in certain other circumstances.
Except in limited circumstances, reflects earliest date that Digital Realty Trust Inc. may exercise its option to redeem the preferred stock, at a redemption
price of $25.00 per share, plus accrued and unpaid dividends up to but excluding the date of redemption.
Upon the occurrence of specified changes of control, as a result of which neither Digital Realty Trust, Inc.’s common stock nor the common securities of
the acquiring or surviving entity (or American Depositary Receipts representing such securities) is listed on the New York Stock Exchange, the NYSE
MKT, LLC or the NASDAQ Stock Market or listed or quoted on a successor exchange or quotation system, each holder of preferred stock will have the
right (unless, prior to the change of control conversion date specified in the applicable Articles Supplementary governing the preferred stock, Digital
Realty Trust, Inc. has provided or provides notice of its election to redeem the preferred stock) to convert some or all of the preferred stock held by it into
a number of shares of Digital Realty Trust, Inc.’s common stock per share of preferred stock to be converted equal to the lesser of (i) the quotient obtained
by dividing (a) the sum of the  $25.00  liquidation preference plus the amount of any accrued and unpaid dividends to, but not including, the change of
control conversion date (unless the change of control conversion date is after a record date for a preferred stock dividend payment and prior to the
corresponding dividend payment date, in which case no additional amount for such accrued and unpaid dividend will be included in this sum) by (b) the
common stock price specified in the applicable Articles Supplementary governing the preferred stock; and (ii) and the Share Cap, subject to certain
adjustments; subject, in each case, to provisions for the receipt of alternative

150

 
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(4)
(5)
(6)

consideration as described in the applicable Articles Supplementary governing the preferred stock. Except in connection with specified change of control
transactions, the preferred stock is not convertible into or exchangeable for any other property or securities of Digital Realty Trust, Inc.
Liquidation preference is $25.00 per share.
Dividends on preferred shares are cumulative and payable quarterly in arrears.
On April 5, 2017, Digital Realty Trust, Inc. redeemed all 7,300,000 outstanding shares of its series F preferred stock for $25.01840 per share. The
redemption price was equal to the original issuance price of $25.00 per share, plus accrued and unpaid dividends up to but not including the redemption
date. Digital Realty Trust, Inc. funded the redemption with borrowings under the global revolving credit facility, which the Operating Partnership
distributed to Digital Realty Trust, Inc. in connection with the Operating Partnership’s redemption of all 7,300,000 of its outstanding series F preferred
units held by Digital Realty Trust, Inc. The excess of the redemption price over the carrying value of the series F preferred stock of approximately $6.3
million relates to the original issuance costs and was recorded as a reduction to net income available to common stockholders.

(d)
Noncontrolling
Interests
in
Operating
Partnership

Noncontrolling interests in the Operating Partnership relate to the interests that are not owned by Digital Realty Trust, Inc. The following table shows the

ownership interest in the Operating Partnership as of December 31, 2017 and 2016 :

Digital Realty Trust, Inc.

Noncontrolling interests consist of:

Common units held by third parties

Incentive units held by employees and directors (see note 14)

December 31, 2017

December 31, 2016

Number of
units

Percentage
of total

Number of
units

Percentage
of total

205,470,300  

96.0%  

159,019,118  

98.5%

6,899,094  

1,590,001  

3.2%  

0.8%  

1,141,814  

1,333,849  

213,959,395  

100.0%  

161,494,781  

0.7%

0.8%

100.0%

Limited partners have the right to require the Operating Partnership to redeem part or all of their common units for cash based on the fair market value of an

equivalent number of shares of Digital Realty Trust, Inc. common stock at the time of redemption. Alternatively, Digital Realty Trust, Inc. may elect to acquire
those common units in exchange for shares of Digital Realty Trust, Inc. common stock on a one -for-one basis, subject to adjustment in the event of stock splits,
stock dividends, issuance of stock rights, specified extraordinary distributions and similar events. Pursuant to authoritative accounting guidance, Digital Realty
Trust, Inc. evaluated whether it controls the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the
share settlement of the noncontrolling Operating Partnership common and incentive units. Based on the results of this analysis, we concluded that the common
units and incentive units of the Operating Partnership met the criteria to be classified within equity, except for certain common units issued to certain former DFT
Operating Partnership unitholders in the DFT merger, which are subject to certain restrictions and, accordingly, are not presented as permanent equity in the
consolidated balance sheet.

In connection with the initial public offering of DFT in 2007, DFT, the DFT Operating Partnership and certain DFT Operating Partnership unitholders
entered into a tax protection agreement to assist such unitholders in deferring certain U.S. federal income tax liabilities that may have otherwise resulted from the
contribution transactions undertaken in connection with the initial public offering and the ownership of interests in the DFT Operating Partnership and to set forth
certain agreements with respect to other tax matters. In connection with the DFT merger, certain DFT Operating Partnership unitholders entered into a new tax
protection agreement with Digital Realty Trust,

151

 
 
 
 
 
 
 
   
   
   
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Inc. and the Operating Partnership that replaced and superseded the DFT tax protection agreement, effective as of the closing of the merger. Pursuant to the new
tax protection agreement, such DFT Operating Partnership unitholders entered into a guarantee of certain debt of a subsidiary of the Operating Partnership. The
Operating Partnership must offer such DFT Operating Partnership unitholders a new guarantee opportunity in the event any guaranteed debt is repaid prior to
March 1, 2023. If the Operating Partnership fails to offer the guarantee opportunity or to allocate guaranteed debt to any such DFT Operating Partnership
unitholder as required under the new tax protection agreement, the Operating Partnership generally would be required to indemnify each such DFT Operating
Partnership unitholder for the tax liability resulting from such failure, as determined under the new tax protection agreement.

The redemption value of the noncontrolling Operating Partnership common units and the vested incentive units was approximately $887.0 million and

$226.3 million based on the closing market price of Digital Realty Trust, Inc. common stock on December 31, 2017 and 2016 , respectively.

The following table shows activity for the noncontrolling interests in the Operating Partnership for the years ended December 31, 2017 , 2016 and 2015 :

As of December 31, 2014

Redemption of common units for shares of Digital Realty Trust, Inc. common stock (1)

Conversion of incentive units held by employees and directors for shares of
   Digital Realty Trust, Inc. common stock (1)

Cancellation of incentive units held by employees and directors

Grant of incentive units to employees and directors

As of December 31, 2015

Redemption of common units for shares of Digital Realty Trust, Inc. common stock (1)

Conversion of incentive units held by employees and directors for shares of
   Digital Realty Trust, Inc. common stock (1)

Grant of incentive units to employees and directors

Cancellation of incentive units held by employees and directors

As of December 31, 2016

Common units issued in connection with the DFT merger
Redemption of common units for shares of Digital Realty Trust, Inc. common stock (1)

Conversion of incentive units held by employees and directors for shares of Digital Realty Trust,
Inc. common stock (1)

Incentive units issued upon achievement of market performance condition

Grant of incentive units to employees and directors

As of December 31, 2017

152

Common 
Units
1,463,814  

(42,500)  

Incentive 
Units
1,549,847  

Total
3,013,661

—  

(42,500)

—  

—  

—  

1,421,314  

(279,500)  

(113,508)  

(151,579)  

127,252  

1,412,012  

—  

(113,508)

(151,579)

127,252

2,833,326

(279,500)

—  

(150,993)  

(150,993)

74,246  

(1,416)  

1,333,849  

—  

—  

(208,092)  

390,795  

73,449  

74,246

(1,416)

2,475,663

6,111,770

(354,490)

(208,092)

390,795

73,449

1,141,814  

6,111,770  

(354,490)  

—  

—  

—  

6,899,094  

1,590,001  

8,489,095

 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(1)

These redemptions and conversions were recorded as a reduction to noncontrolling interests in the Operating Partnership and an increase to common
stock and additional paid in capital based on the book value per unit in the accompanying consolidated balance sheet of Digital Realty Trust, Inc.

(e)
Dividends

We have declared and paid the following dividends on our common and preferred stock for the years ended December 31, 2017 , 2016 and 2015 (in

thousands):

Date dividend  
declared

  Dividend payable date

February 25,
2015

  March 31, 2015

May 12, 2015

  June 30, 2015

August 11, 2015   September 30, 2015

November 12,
2015

December 31, 2015 for Preferred
Stock; 
   January 15, 2016 for Common Stock  

February 17,
2016

  March 31, 2016

May 11, 2016

  June 30, 2016

August 10, 2016   September 30, 2016

  $

  $

November 9,
2016

December 30, 2016 for Preferred
Stock; 
   January 13, 2017 for Common Stock  

March 1, 2017

  March 31, 2017

May 8, 2017

  June 30, 2017

August 7, 2017

  September 29, 2017

  $

  $

November 2,
2017

December 29, 2017 for Preferred
Stock; 
   January 12, 2018 for Common Stock  

Annual rate of dividend per share

  $

  $

Series C
Preferred
Stock

Series E
Preferred
Stock

Series F
Preferred
Stock

Series G
Preferred
Stock

Series H
Preferred
Stock

Series I
Preferred
Stock

Series J
Preferred
Stock

  $

—

$

5,031

$

3,023

$

3,672

$

6,730

$

—  

—   

—   

—   

—   

—  

—   

—   

—   

—   

—   

—   

$

$

$

$

5,031

5,031

5,031

20,124

5,031

5,031

(4)

—

—   

10,062

—  

—   

—  

$

$

$

$

3,023

3,023

3,023

12,092

3,023

3,023

3,023

3,023

12,092

3,023

(6)

—

—   

$

$

$

$

3,672

3,672

3,672

14,688

3,672

3,672

3,672

3,672

14,688

3,672

3,672

3,672

6,730

6,730

6,730

26,920

6,730

6,730

6,730

6,730

26,920

6,730

6,730

6,730

$

$

$

$

—  

—  

—  

(2)

$

$

$

$

5,600

5,600

3,969

3,969

3,969

3,969

15,876

3,969

3,969

3,969

Common 
Stock

$

115,419

115,458

115,454

124,417

470,748

131,587

131,607

131,657

141,882

536,733

148,358

150,814

191,041

$

$

$

$

(1)

(1)

(1)

(1)

(3)

(3)

(3)

(3)

(5)

(5)

(5)

(5)

$

$

$

$

$

—  

—  

—  

—  
—  

—  

—  

—  

—  
—  

—  

—  

—  

(7)

3,963

(7)  

—   

—   

3,672

6,730

3,969

4,200

191,067

3,963

$

—   

$

3,023

$

14,688

$

26,920

$

15,876

$

4,200

$

681,280

1.65625

$

1.75000

$

1.65625

$

1.46875

$

1.84375

$

1.58750

$

1.31250

(1)
(2)
(3)
(4)

$ 3.400 annual rate of dividend per share.
Represents a pro rata dividend from and including the original issue date to and including December 31, 2015.
$3.520 annual rate of dividend per share.
Redeemed on September 15, 2016 for  $25.35972  per share, or a redemption price of  $25.00  per share, plus accrued and unpaid dividends up to but not
including the redemption date of approximately  $4.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $10.3 million  were recorded as a reduction to net income available to common stockholders.

153

 
 
 
 
 
 
 
 
 
 
  
  
  
  
 
 
  
  
 
 
 
  
  
  
  
 
 
  
 
  
  
 
 
 
   
  
  
  
  
 
  
 
  
  
  
 
 
 
  
  
 
 
 
 
 
  
  
  
 
 
 
  
  
  
 
 
 
   
  
  
  
  
 
  
  
  
  
 
 
 
 
  
 
 
 
 
  
  
 
 
 
  
  
 
 
 
 
   
  
  
  
  
 
 
  
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(5)
(6)

(7)

$3.720 annual rate of dividend per share.
Redeemed on April 5, 2017 for  $25.01840  per share, or a redemption price of  $25.00  per share, plus accrued and unpaid dividends up to but not
including the redemption date of approximately  $0.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $6.3 million  were recorded as a reduction to net income available to common stockholders.
Represents a pro rata dividend from and including the original issue date to and including December 31, 2017.

Distributions out of Digital Realty Trust, Inc.’s current or accumulated earnings and profits are generally classified as dividends whereas distributions in

excess of its current and accumulated earnings and profits, to the extent of a stockholder’s U.S. federal income tax basis in Digital Realty Trust, Inc.’s stock, are
generally classified as a return of capital. Distributions in excess of a stockholder’s U.S. federal income tax basis in Digital Realty Trust, Inc.’s stock are generally
characterized as capital gain. Cash provided by operating activities has generally been sufficient to fund all distributions, however, in the future we may also need
to utilize borrowings under the global revolving credit facility to fund all or a portion of distributions.

(f)
Accumulated
Other
Comprehensive
Income
(Loss),
Net

The accumulated balances for each item within other comprehensive income (loss), net are as follows (in thousands):

Balance as of December 31, 2015

Net current period change

Reclassification to interest expense from interest rate swaps

Balance as of December 31, 2016

Net current period change

Reclassification to interest expense from interest rate swaps

Balance as of December 31, 2017

Foreign 
currency 
translation 
adjustments

Cash  flow 
hedge 
adjustments

Foreign currency net
investment hedge
adjustments

Accumulated 
other 
comprehensive 
income (loss), net

(90,342)   $

(85,300)  

—  

(6,248)   $

6,246  

4,890  

—   $

35,149  

—  

(96,590)

(43,905)

4,890

(175,642)   $

4,888   $

35,149   $

(135,605)

28,272  

—  

5,898  

2,414  

(9,411)  

—  

24,759

2,414

(147,370)   $

13,200   $

25,738   $

(108,432)

$

$

$

154

 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

13. Capital and Accumulated Other Comprehensive Income (Loss)

(a)
Allocations
of
Net
Income
and
Net
Losses
to
Partners

Except for special allocations to holders of profits interest units described below in Note 14(a) under the heading “Incentive Plan-Long-Term Incentive
Units,” the Operating Partnership’s net income will generally be allocated to Digital Realty Trust, Inc. (the General Partner) to the extent of the accrued preferred
return on its preferred units, and then to the General Partner and the Operating Partnership’s limited partners in accordance with the respective percentage interests
in the common units issued by the Operating Partnership. Net loss will generally be allocated to the General Partner and the Operating Partnership’s limited
partners in accordance with the respective common percentage interests in the Operating Partnership until the limited partner’s capital is reduced to zero and any
remaining net loss would be allocated to the General Partner. However, in some cases, losses may be disproportionately allocated to partners who have guaranteed
our debt. The allocations described above are subject to special allocations relating to depreciation deductions and to compliance with the provisions of Sections
704(b) and 704(c) of the Code, and the associated Treasury Regulations.

(b)
Redeemable
Preferred
Units

Preferred Units (1)

Date(s)
Issued

Initial Date to
Redeem (2)

Total
Liquidation
Value (in
thousands)
(3)

Annual
Distribution
Rate (4)

2017

2016

2017

2016

Units Outstanding as
of December 31,

Balance (in thousands, net of
issuance costs) as of December
31,

  Apr 5, 2012   Apr 5, 2017  

6.625% Series C Cumulative
Redeemable Perpetual Preferred Units   Sep 14, 2017   May 15, 2021   $
6.625% Series F Cumulative
Redeemable Preferred Units (5)
5.875% Series G Cumulative
Redeemable Preferred Units
7.375% Series H Cumulative
Redeemable Preferred Units
6.350% Series I Cumulative
Redeemable Preferred Units
5.250% Series J Cumulative
Redeemable Preferred Units

  Aug 7, 2017   Aug 7, 2022  

  Apr 9, 2013   Apr 9, 2018  

Mar 26,
2014
Aug 24,
2015

  Mar 26, 2019  

  Aug 24, 2020  

201,250   $

1.65625  

8,050,000  

—   $

219,250   $

—

182,500  

1.65625  

—  

7,300,000  

—  

176,191

250,000  

1.46875  

10,000,000  

10,000,000  

241,468  

241,468

365,000  

1.84375  

14,600,000  

14,600,000  

353,290  

353,290

250,000  

1.58750  

10,000,000  

10,000,000  

242,012  

242,012

200,000  

1.31250  

  $ 1,448,750    

8,000,000  
50,650,000  

—  

—
41,900,000   $ 1,249,560   $ 1,012,961

193,540  

(1)

(2)

(3)

All series of preferred units do not have a stated maturity date and are not subject to any sinking fund or mandatory redemption provisions. Upon
liquidation, dissolution or winding up, each series of preferred units will rank senior to Digital Realty Trust, Inc. common units and on parity with the
other series of preferred units.
Except in limited circumstances, reflects earliest date that Digital Realty Trust Inc. may exercise its option to redeem the corresponding series of preferred
stock, at a redemption price of $25.00 per share, plus accrued and unpaid dividends up to but excluding the date of redemption. The Operating Partnership
is required to redeem the corresponding series of preferred units in the event that the General Partner redeems a series of preferred stock.
Liquidation preference is $25.00 per unit.

155

 
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(4)
(5)

Distributions on preferred units are cumulative and payable quarterly in arrears.
Redeemed on April 5, 2017 for  $25.01840  per unit, or a redemption price of  $25.00  per unit, plus accrued and unpaid distributions up to but not
including the redemption date of approximately  $0.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $6.3 million  were recorded as a reduction to net income available to common unitholders.

(c)
Partnership
Units

Limited partners have the right to require the Operating Partnership to redeem part or all of their common units for cash based on the fair market value of an

equivalent number of shares of the General Partner’s common stock at the time of redemption. Alternatively, the General Partner may elect to acquire those
common units in exchange for shares of the General Partner’s common stock on a one -for-one basis, subject to adjustment in the event of stock splits, stock
dividends, issuance of stock rights, specified extraordinary distributions and similar events. Pursuant to authoritative accounting guidance, the Operating
Partnership evaluated whether it controls the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the
share settlement of the limited partners’ common units and the vested incentive units. Based on the results of this analysis, the Operating Partnership concluded
that the common units and incentive units of the Operating Partnership met the criteria to be classified within capital, except for certain common units issued to
certain former DFT Operating Partnership unitholders in the DFT merger which are subject to certain restrictions and are not presented as permanent capital in the
consolidated balance sheet.

The redemption value of the limited partners’ common units and the vested incentive units was approximately $887.0 million and $226.3 million based on

the closing market price of Digital Realty Trust, Inc.’s common stock on December 31, 2017 and 2016 , respectively.

156

Table of Contents

Index to Financial Statements

(d)
Distributions

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

All distributions on our units are at the discretion of Digital Realty Trust, Inc.’s board of directors. We have declared and paid the following distributions on

our common and preferred units for the years ended December 31, 2017 , 2016 and 2015 (in thousands):

Date distribution  
declared

  Distribution payable date

Series C
Preferred
Units

Series E
Preferred
Units

Series F
Preferred
Units

Series G
Preferred
Units

Series H
Preferred
Units

Series I
Preferred
Units

Series J
Preferred
Units

—

$

5,031

$

3,023

$

3,672

$

6,730

$

Feb 25, 2015

May 12, 2015

Aug 11, 2015

Nov 12, 2015

Feb 17, 2016

May 11, 2016

Aug 10, 2016

Nov 9, 2016

Mar 1, 2017

May 8, 2017

Aug 7, 2017

Nov 2, 2017

  March 31, 2015

  June 30, 2015

  September 30, 2015

December 31, 2015 for 
Preferred Units; 
   January 15, 2016 for 
Common Units

  March 31, 2016

  June 30, 2016

  September 30, 2016

December 31, 2016 for 
Preferred Units; 
   January 13, 2017 for 
Common Units

  March 31, 2017

  June 30, 2017

  September 29, 2017

December 29, 2017 for 
Preferred Units; 
   January 12, 2018 for 
Common Units

Annual rate of distribution per unit

  $

  $

  $

  $

  $

  $

  $

—  

—  

—  
—  

—  

—  

—  

—  
—  

—  

—  

—  

$

$

$

$

3,963

(7)  

3,963

$

5,031

5,031

5,031

20,124

5,031

5,031

— (4)  

—  

10,062

—  

—  

—  

—  
—  

3,023

3,023

3,023

12,092

3,023

3,023

3,023

3,023

12,092

3,023

$

$

$

$

— (6)  

—  

—  

3,672

3,672

3,672

14,688

3,672

3,672

3,672

3,672

14,688

3,672

3,672

3,672

$

$

$

$

(2)

6,730

6,730

—  

—  

—  

(2)

$

$

$

$

6,730

26,920

6,730

6,730

6,730

6,730

26,920

6,730

6,730

6,730

$

$

$

$

5,600

5,600

3,969

3,969

3,969

3,969

15,876

3,969

3,969

3,969

$

$

$

$

$

—  

—  

—  

—  
—  

—  

—  

—  

—
—  

—  

—  

—  

Common 
Units

$

117,896

117,938

117,962

126,827

480,623

131,587

131,607

131,657

144,193

539,044

150,968

153,176

199,049

$

$

$

$

(1)

(1)

(1)

(1)

(3)

(3)

(3)

(3)

(5)

(5)

(5)

(5)

3,672

6,730

3,969

4,200

199,061

(7)

$

3,023

$

14,688

$

26,920

$

15,876

$

4,200

$

702,254

1.65625

$

1.75000

$

1.65625

$

1.46875

$

1.84375

$

1.58800

$

1.31250

(1)
(2)
(3)

$ 3.400 annual rate of distribution per unit.
Represents a pro rata distribution from and including the original issue date to and including December 31, 2015.
$3.520 annual rate of distribution per unit.

157

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(4)

(5)
(6)

(7)

Redeemed on September 15, 2016 for  $25.35972  per unit, or a redemption price of  $25.00  per unit, plus accrued and unpaid distributions up to but not
including the redemption date of approximately  $4.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $10.3 million  were recorded as a reduction to net income available to common unitholders.
$3.720 annual rate of distribution per unit.
Redeemed on April 5, 2017 for  $25.01840  per unit, or a redemption price of  $25.00  per unit, plus accrued and unpaid distributions up to but not
including the redemption date of approximately  $0.1 million  in the aggregate. In connection with the redemption, the previously incurred offering costs
of approximately  $6.3 million  were recorded as a reduction to net income available to common unitholders.
Represents a pro rata distribution from and including the original issue date to and including December 31, 2017.

(e)
Accumulated
Other
Comprehensive
Income
(Loss)

The accumulated balances for each item within other comprehensive income (loss) are as follows (in thousands):

Balance as of December 31, 2015

Net current period change

Reclassification to interest expense from interest rate swaps

Balance as of December 31, 2016

Net current period change

Reclassification to interest expense from interest rate swaps

Balance as of December 31, 2017

Foreign 
currency 
translation 
adjustments

Cash  flow 
hedge 
adjustments

Foreign currency net
investment hedge
adjustments

Accumulated 
other 
comprehensive 
income (loss)

(93,883)   $

(86,621)  

—  

(7,081)   $

6,304  

4,968  

—   $

35,694  

—  

(100,964)

(44,623)

4,968

(180,504)   $

4,191   $

35,694   $

(140,619)

28,709  

—  

6,108  

2,459  

(9,542)  

—  

25,275

2,459

(151,795)   $

12,758   $

26,152   $

(112,885)

$

$

$

158

 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

14. Incentive Plan

Our Amended and Restated 2004 Incentive Award Plan (as defined below) previously provided for grants of incentive awards to employees, directors and
consultants. Awards issuable under the Amended and Restated 2004 Incentive Award Plan included stock options, restricted stock, dividend equivalents, stock
appreciation rights, long-term incentive units, cash performance bonuses and other incentive awards. Only employees were eligible to receive incentive stock
options under the Amended and Restated 2004 Incentive Award Plan. Initially, we reserved a total of 4,474,102 shares of common stock for issuance pursuant to
the Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004 Incentive Award Plan (the 2004 Incentive Award Plan), subject to certain
adjustments set forth in the 2004 Incentive Award Plan. On May 2, 2007, Digital Realty Trust, Inc.’s stockholders approved the First Amended and Restated
Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004 Incentive Award Plan (as amended, the Amended and Restated 2004 Incentive
Award Plan). The Amended and Restated 2004 Incentive Award Plan increased the aggregate number of shares of stock which could have been issued or
transferred under the plan by 5,000,000 shares to a total of 9,474,102 shares, and provided that the maximum number of shares of stock with respect to awards
granted to any one participant during a calendar year was 1,500,000 shares and the maximum amount that could have been paid in cash during any calendar year
with respect to any performance-based award not denominated in stock or otherwise for which the foregoing limitation would not be an effective limitation for
purposes of Section 162(m) of the Code was $10.0 million .

On April 28, 2014, Digital Realty Trust, Inc. held its 2014 Annual Meeting of Stockholders, or the 2014 Annual Meeting, at which its stockholders approved
the Digital Realty Trust, Inc., Digital Services, Inc., and Digital Realty Trust, L.P. 2014 Incentive Award Plan (as amended, the 2014 Incentive Award Plan), which
had been previously adopted by its Board of Directors and recommended to the stockholders for approval by the Board of Directors. The 2014 Incentive Award
Plan became effective and replaced the Amended and Restated 2004 Incentive Award Plan as of the date of such stockholder approval. The material features of the
2014 Incentive Award Plan are described in our definitive Proxy Statement filed on March 19, 2014 in connection with the 2014 Annual Meeting, which
description is incorporated herein by reference. Effective as of September 14, 2017, the 2014 Incentive Award Plan was amended to provide that shares which
remained available for issuance under DFT’s Amended and Restated 2011 Equity Incentive Plan immediately prior to the closing of the DFT merger (as adjusted
and converted into shares of Digital Realty Trust, Inc.’s common stock) may be used for awards under the 2014 Incentive Award Plan and will not reduce the
shares authorized for grant under the 2014 Incentive Award Plan, to the extent that using such shares is permitted without stockholder approval under applicable
stock exchange rules. In connection with the amendment to the 2014 Incentive Award Plan, on September 22, 2017, Digital Realty Trust, Inc. registered an
additional  3,714,560  shares that may be issued pursuant to the 2014 Incentive Award Plan.

As of December 31, 2017 , approximately 7.5 million shares of common stock, including awards convertible into or exchangeable for shares of common
stock remained available for future issuance under the 2014 Incentive Award Plan. Each long-term incentive unit and each Class D Unit issued under the 2014
Incentive Award Plan counts as one share of common stock for purposes of calculating the limit on shares that may be issued under the 2014 Incentive Award Plan
and the individual award limits set forth therein.

(a)
Long-Term
Incentive
Units

Long-term incentive units, which are also referred to as profits interest units, may be issued to eligible participants for the performance of services to or for

the benefit of the Operating Partnership. Long-term incentive units (other than Class D Units), whether vested or not, will receive the same quarterly per unit
distributions as Operating Partnership common units, which equal the per share distributions on Digital Realty Trust, Inc. common stock. Initially, long-term
incentive units do not have full parity with common units with respect to liquidating distributions. If such parity is reached, vested long-term incentive units may
be converted into an equal number of common units of the Operating Partnership at any time, and thereafter enjoy all the rights and privileges of common units of
the Operating Partnership, including redemption rights.

In order to achieve full parity with common units, long-term incentive units must be fully vested and the holder’s capital account balance in respect of such

long-term incentive units must be equal to the capital account balance of a holder of an equivalent number of common units. The capital account balance
attributable to each common unit is generally expected to be the same, in part because of the amount credited to a partner’s capital account upon the partner’s
contribution of property to the Operating Partnership, and in part because the partnership agreement provides, in most cases, that allocations of income, gain, loss
and deduction (which will adjust the partner’s capital accounts) are to be made to the common units on a proportionate

159

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

basis. As a result, with respect to a number of long-term incentive units, it is possible to determine the capital account balance of an equivalent number of common
units by multiplying the number of long-term incentive units by the capital account balance with respect to a common unit.

A partner’s initial capital account balance is equal to the amount the partner paid (or contributed to the Operating Partnership) for the partner’s units and is

subject to subsequent adjustments, including with respect to the partner’s share of income, gain or loss of the Operating Partnership. Because a holder of long-term
incentive units generally will not pay for the long-term incentive units, the initial capital account balance attributable to such long-term incentive units will be zero
. However, the Operating Partnership is required to allocate income, gain, loss and deduction to the partner’s capital accounts in accordance with the terms of the
partnership agreement, subject to applicable Treasury Regulations. The partnership agreement provides that holders of long-term incentive units will receive
special allocations of gain in the event of a sale or “hypothetical sale” of assets of the Operating Partnership prior to the allocation of gain to Digital Realty Trust,
Inc. or other limited partners with respect to their common units. The amount of any such allocation will, to the extent of any such gain, be equal to the difference
between the capital account balance of a holder of long-term incentive units attributable to such units and the capital account balance attributable to an equivalent
number of common units. If and when such gain allocation is fully made, a holder of long-term incentive units will have achieved full parity with holders of
common units. To the extent that, upon an actual sale or a “hypothetical sale” of the Operating Partnership’s assets as described above, there is not sufficient gain
to allocate to a holder’s capital account with respect to long-term incentive units, or if such sale or “hypothetical sale” does not occur, such units will not achieve
parity with common units.

The term “hypothetical sale” refers to circumstances that are not actual sales of the Operating Partnership’s assets but that require certain adjustments to the
value of the Operating Partnership’s assets and the partners’ capital account balances. Specifically, the partnership agreement provides that, from time to time, in
accordance with applicable Treasury Regulations, the Operating Partnership will adjust the value of its assets to equal their respective fair market values, and
adjust the partners’ capital accounts, in accordance with the terms of the partnership agreement, as if the Operating Partnership sold its assets for an amount equal
to their value. Such adjustments will generally be made upon the liquidation of the Operating Partnership, the acquisition of an additional interest in the Operating
Partnership by a new or existing partner in exchange for more than a de minimis capital contribution, the distribution by the Operating Partnership to a partner of
more than a de minimis amount of partnership property as consideration for an interest in the Operating Partnership, the grant of an interest in the Operating
Partnership (other than a de minimis interest) as consideration for the performance of services to or for the benefit of the Operating Partnership (including the grant
of a long-term incentive unit), and at such other times as may be desirable or required to comply with the Treasury Regulations.

Below is a summary of our long-term incentive unit activity for the year ended December 31, 2017 .

Unvested Long-term Incentive Units
Unvested, beginning of period

Granted

Vested

Cancelled or expired

Unvested, end of period

Units

128,822  

$

72,664  

(94,801)  

(7,390)  

99,295  

$

Weighted-Average 
Grant Date Fair 
Value

66.58

109.71

71.97

98.94

90.59

The grant date fair values, which equal the market price of Digital Realty Trust, Inc. common stock on the applicable grant date(s), are being expensed on a

straight-line basis for service awards over four years, the current vesting period of the long-term incentive units.

Excluding the impact of our former Chief Executive Officer's equity acceleration in 2014 and subsequent cancellation in 2015, the expense recorded for the

years ended December 31, 2017 , 2016 and 2015 related to long-term incentive units was approximately $3.9 million , $4.5 million and $5.9 million , respectively.
We capitalized amounts relating to compensation expense of employees direct and incremental to construction and successful leasing activities of approximately
$1.7 million , $1.8 million and $1.2 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. Unearned compensation representing the
unvested portion of the long-term incentive units totaled $6.9 million and $5.6 million as of December 31,

160

 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

2017 and 2016 , respectively. We expect to recognize this unearned compensation over the next 2.6 years on a weighted average basis.

(b)
Market
Performance-Based
Awards

During the years ended  December 31, 2017 , 2016  and  2015 , the Compensation Committee of the Board of Directors of Digital Realty Trust, Inc. approved

the grant of market performance-based Class D units of the Operating Partnership and market performance-based restricted stock units, or RSUs, covering shares
of the Digital Realty Trust, Inc.’s common stock (collectively, the “awards”), under the 2014 Incentive Award Plan to officers and employees of the Company.

The awards, which were determined to contain a market condition, utilize total shareholder return, or TSR, over a three -year measurement period as the
market performance metric. Awards will vest based on the Company’s TSR relative to the MSCI US REIT Index, or RMS, over a three -year market performance
period, or the Market Performance Period, commencing in January 2015, January 2016 or January 2017, as applicable (or, if earlier, ending on the date on which a
change in control of the Company occurs), subject to continued services. Vesting with respect to the market condition is measured based on the difference between
Digital Realty Trust, Inc.’s TSR percentage and the TSR percentage of the RMS, or the RMS Relative Market Performance. In the event that the RMS Relative
Market Performance upon completion of the Market Performance Period is achieved at the “threshold,” “target” or “high” level as set forth below, the awards will
become vested as to the market condition with respect to the percentage of Class D units or RSUs, as applicable, set forth below:

Level
Below Threshold Level

Threshold Level

Target Level

High Level

RMS Relative 
Market Performance
< -300 basis points

-300 basis points

100 basis points

>  500 basis points

Market
Performance
Vesting
Percentage

0%

25%

50%

100%

If the RMS Relative Market Performance falls between the levels specified above, the percentage of the awards that will vest with respect to the market

condition will be determined using straight-line linear interpolation between such levels.

In January 2018, following the completion of the Market Performance Period, the Compensation Committee determined that the high level had been achieved

for the 2015 awards and, accordingly,  363,193 class D units (including 36,246 distribution equivalent units that immediately vested on December 31, 2017, upon
the high level being achieved) and 49,707 RSUs performance vested, subject to service-based vesting. On February 27, 2018, 50% of the 2015 awards vested and
the remaining 50% will vest on February 27, 2019, subject to continued employment through each applicable vesting date.

In January 2017, following the completion of the Market Performance Period, the Compensation Committee determined that the high level had been achieved
for the 2014 awards and, accordingly,  399,250  class D units (including  44,702  distribution equivalent units that immediately vested on December 31, 2016, upon
the high level being achieved) and  138,567  RSUs performance vested, subject to service-based vesting. On February 27, 2017, 50% of the 2014 awards vested
and the remaining 50% vested on February 27, 2018.

Following the completion of the Market Performance Period, the 2016 awards that have satisfied the market condition, if any, will vest 50% on February 27,
2019 and 50% on February 27, 2020, subject to continued employment through each applicable vesting date. Following the completion of the Market Performance
Period, the 2017 awards that have satisfied the market condition, if any, will vest 50% on February 27, 2020 and 50% on February 27, 2021, subject to continued
employment through each applicable vesting date.

Service-based vesting will be accelerated, in full or on a pro rata basis, as applicable, in the event of a change in control, termination of employment by the
Company without cause, termination of employment by the award recipient for good reason, death, disability or retirement, in any case prior to the completion of
the applicable Market Performance Period. However, vesting with respect to the market condition will continue to be measured based on RMS Relative Market
Performance during

161

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

the applicable three -year Market Performance Period (or, in the case of a change in control, shortened Market Performance Period).

The fair values of the awards were measured using a Monte Carlo simulation to estimate the probability of the market vesting condition being satisfied. The

Company’s achievement of the market vesting condition is contingent on its TSR over a three -year market performance period, relative to the total shareholder
return of the RMS. The Monte Carlo simulation is a probabilistic technique based on the underlying theory of the Black-Scholes formula, which was run for
100,000 trials to determine the fair value of the awards. For each trial, the payoff to an award is calculated at the settlement date and is then discounted to the grant
date at a risk-free interest rate. The total expected value of the awards on the grant date was determined by multiplying the average value per award over all trials
by the number of awards granted. Assumptions used in the valuations are summarized as follows:

Award Date
February 24, 2015

January 1, 2016

February 16, 2016

January 1, 2017

February 28, 2017

Expected Stock Price
Volatility
24%

Risk-Free Interest Rate
1.00%

22%

26%

25%

23%

1.32%

0.89%

1.49%

1.43%

These valuations were performed in a risk-neutral framework, and no assumption was made with respect to an equity risk premium.

As of December 31, 2017 , 2,029,908 Class D Units and 543,923 market performance-based RSUs had been awarded to our executive officers and other
employees. The number of units granted reflects the maximum number of Class D units or market performance-based RSUs, as applicable, which will become
vested assuming the achievement of the highest level of RMS Relative Market Performance under the awards and, in the case of the Class D units, also includes
distribution equivalent units. The fair value of these awards of approximately $74.9 million will be recognized as compensation expense on a straight-line basis
over the expected service period of approximately four years. The unearned compensation as of December 31, 2017 and 2016 was $24.7 million and $25.6 million,
respectively, net of cancellations. We expect to recognize this unearned compensation over the next 2.5 years on a weighted average basis. We recognized
compensation expense related to these awards of approximately $9.6 million , $7.9 million and $4.1 million in the years ended December 31, 2017 , 2016 and 2015
, respectively. We capitalized amounts relating to compensation expense of employees directly engaged in construction and leasing activities of approximately $2.3
million , $1.9 million and $4.1 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. If the market conditions are not met, at the end of the
applicable performance periods, the unamortized amount will be recognized as an expense at that time.

162

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(c)
Restricted
Stock

Below is a summary of our restricted stock activity for the year ended December 31, 2017 .

Unvested Restricted Stock
Unvested, beginning of period

Granted (1)

Vested

Cancelled or expired

Unvested, end of period

Shares

Weighted-Average 
Grant Date Fair 
Value

274,642  

$

120,853  

(102,899)  

(33,174)  

259,422  

$

73.81

108.65

69.04

84.68

90.54

(1)

All restricted stock awards granted in 2017 are subject only to service conditions.

The grant date fair values, which equal the market price of Digital Realty Trust, Inc. common stock on the grant date, are being expensed on a straight-line

basis for service awards over the vesting period of the restricted stock, which ranges from three to four years.

  The expense recorded for the years ended December 31, 2017 , 2016 and 2015 related to grants of restricted stock was approximately $4.5 million , $4.1

million and $2.5 million , respectively. We capitalized amounts relating to compensation expense of employees direct and incremental to construction and
successful leasing activities of approximately $3.3 million , $2.8 million and $2.7 million for the years ended December 31, 2017 , 2016 and 2015 , respectively.
Unearned compensation representing the unvested portion of the restricted stock totaled $17.5 million and $14.7 million as of December 31, 2017 and 2016 ,
respectively. We expect to recognize this unearned compensation over the next 2.7 years on a weighted average basis.

(d)
401(k)
Plan

We have a 401(k) plan whereby our employees may contribute a portion of their compensation to their respective retirement accounts, in an amount not to

exceed the maximum allowed under the Code. The 401(k) Plan complies with Internal Revenue Service requirements as a 401(k) Safe Harbor Plan whereby
matching contributions made by us are 100% vested. The aggregate cost of our contributions to the 401(k) Plan was approximately $4.6 million , $3.6 million , and
$3.4 million for the years ended December 31, 2017 , 2016 and 2015 , respectively.

15. Derivative Instruments

Currently, we use interest rate swaps to manage our interest rate risk. The valuation of these instruments is determined using widely accepted valuation

techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives,
including the period to maturity, and uses observable market-based inputs, including interest rate curves. The fair values of interest rate swaps are determined using
the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or
receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate
curves.

To comply with the provisions of fair value accounting guidance, we incorporate credit valuation adjustments to appropriately reflect both our own
nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of our derivative contracts
for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds,
mutual puts, and guarantees.

Although we have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation

adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by us and our
counterparties. However, as of December 31, 2017 , we

163

 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

have assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative positions and have determined that the
credit valuation adjustments are not significant to the overall valuation of our derivatives. As a result, we have determined that our derivative valuations in their
entirety are classified in Level 2 of the fair value hierarchy. We do not have any fair value measurements on a recurring basis using significant unobservable inputs
(Level 3) as of December 31, 2017 or December 31, 2016 .

Cash
Flow
Hedges
of
Interest
Rate
Risk

Our objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements related to the

U.S. LIBOR, GBP LIBOR and CDOR-based tranches of the unsecured term loans. To accomplish this objective, we primarily use interest rate swaps as part of our
interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in
exchange for making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

We record all our interest rate swaps on the consolidated balance sheet at fair value. In determining the fair value of our interest rate swaps, we consider the

credit risk of our counterparties. These counterparties are generally larger financial institutions engaged in providing a variety of financial services. These
institutions generally face similar risks regarding adverse changes in market and economic conditions, including, but not limited to, fluctuations in interest rates,
exchange rates, equity and commodity prices and credit spreads. The recent and pervasive disruptions in the financial markets have heightened the risks to these
institutions.

The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. During the years ended December 31, 2017, 2016 and

2015, there were no ineffective portions to our interest rate swaps.

As of December 31, 2017 and December 31, 2016 , we had the following outstanding interest rate derivatives that were designated as cash flow hedges of

interest rate risk (in thousands):

Notional Amount

As of 
December 31, 
2017

As of 
December 31, 
2016

Currently-paying
contracts

$

206,000 (1)

$

54,905 (1)
—  
—  

75,000 (1)

75,000 (1)

300,000 (2)
—  

229,012 (4)

—  
—  

206,000 (1)

54,905 (1)

75,000 (1)

75,000 (1)

300,000 (2)

130,850 (3)

209,132 (4)

78,357 (5)
1,018,274  

$

73,294 (5)
1,124,181  

$

(1)
(2)
(3)

(4)

Type of 
Derivative

Strike 
Rate

  Effective Date

Expiration 
Date

Fair Value at Significant Other 
Observable Inputs (Level 2)

As of 
December 31, 
2017  (6)

As of 
December 31, 
2016 (6)

Swap

Swap

Swap

Swap

Swap

Swap

Swap

Swap

Swap

Swap

1.611  
1.605  
0.932  
0.670  
1.016  
1.164  
1.435  
0.925  
0.792  
0.779  

Jun 15, 2017

Jan 15, 2020

  $

1,409

$

Jun 6, 2017

Jan 6, 2020

Jun 18, 2012

Apr 18, 2017

Aug 6, 2012

Apr 6, 2017

Apr 6, 2016

Jan 6, 2021

Jan 15, 2016

Jan 15, 2021

Jan 15, 2016

Jan 15, 2023

Jul 17, 2012

Apr 18, 2017

Jan 15, 2016

Jan 15, 2019

Jan 15, 2016

Jan 15, 2021

  $

374
—  
—  

2,260

1,947

9,978

—

(430)

3,034

18,572

$

—  
—  

(90)

16

1,911

1,487

8,128

18

(1,818)

1,556

11,208

Represents portions of the U.S. dollar tranche of the  5 -Year Term Loan.
Represents the U.S. dollar tranche of the  7 -Year Term Loan.
Represents a portion of the Singapore dollar tranche of the  5 -Year Term Loan. Translation to U.S. dollars is based on exchange rate of $0.69 to 1.00
SGD as of December 31, 2016 .
Represents the British pound sterling tranche of the  5 -Year Term Loan. Translation to U.S. dollars is based on exchange rates of  $1.35  to £1.00 as of 
December 31, 2017 and $1.23  to £1.00 as of December 31, 2016 .

164

 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

(5)

(6)

Represents the Canadian dollar tranche of the  5 -Year Term Loan. Translation to U.S. dollars is based on exchange rates of  $0.80  to 1.00 CAD as of 
December 31, 2017 and $0.74  to 1.00 CAD as of  December 31, 2016 .
Balance recorded in other assets in the consolidated balance sheets if positive and recorded in accounts payable and other accrued liabilities in the
consolidated balance sheets if negative.

Amounts reported in accumulated other comprehensive loss related to interest rate swaps will be reclassified to interest expense as interest payments are

made on our debt. As of December 31, 2017 , we estimate that an additional $1.6 million will be reclassified as a decrease to interest expense during the year
ending December 31, 2018, when the hedged forecasted transactions impact earnings.

Foreign
Currency
Net
Investment
Hedges

During the three months ended June 30, 2016, we entered into a series of forward contracts pursuant to which we agreed to sell an amount of foreign
currency for an agreed upon amount of U.S. dollars. These forward contracts were executed to manage foreign currency exposures associated with certain
transactions. As of June 30, 2016, the forward contracts did not meet the criteria for hedge accounting under GAAP and had a fair value of approximately  $37.8
million . On July 1, 2016, the  four  forward contracts still in place met the criteria for net investment hedge accounting. During the year ended  December 31, 2017
, we terminated the  four  forward contracts with a notional amount of GBP  357.3 million . In connection with the settlement, we received approximately  $64.0
million  in proceeds and the related amount of approximately  $26.2 million  of accumulated other comprehensive income (AOCI) will remain in AOCI until the
Company sells or liquidates its GBP-denominated investments, which has not occurred as of  December 31, 2017 .

16. Fair Value of Instruments

We disclose fair value information about all financial instruments, whether or not recognized in the consolidated balance sheets, for which it is practicable to
estimate fair value. Current accounting guidance requires the Company to disclose fair value information about all financial instruments, whether or not recognized
in the balance sheets, for which it is practicable to estimate fair value.

The Company’s disclosures of estimated fair value of financial instruments at December 31, 2017 and December 31, 2016 were determined using available
market information and appropriate valuation methods. Considerable judgment is necessary to interpret market data and develop estimated fair value. The use of
different market assumptions or estimation methods may have a material effect on the estimated fair value amounts.

The carrying amounts for cash and cash equivalents, restricted cash, accounts and other receivables, accounts payable and other accrued liabilities, accrued
dividends and distributions, security deposits and prepaid rents approximate fair value because of the short-term nature of these instruments. As described in Note
15. "Derivative Instruments", the interest rate swaps and foreign currency forward contracts are recorded at fair value.

We calculate the fair value of our mortgage loans, unsecured term loan and unsecured senior notes based on currently available market rates assuming the

loans are outstanding through maturity and considering the collateral and other loan terms. In determining the current market rate for fixed rate debt, a market
spread is added to the quoted yields on federal government treasury securities with similar maturity dates to our debt. The carrying value of our global revolving
credit facility approximates fair value, due to the variability of interest rates.

As of December 31, 2017 and December 31, 2016 , the aggregate estimated fair value and carrying value of our global revolving credit facility, unsecured

term loan, unsecured senior notes and mortgage loans were as follows (in thousands):

165

 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Global revolving credit facility (1)(5)

Unsecured term loans (2)(6)

Unsecured senior notes (3)(4)(7)

Mortgage loans (3)(8)

Categorization 
under the fair value 
hierarchy

As of December 31, 2017

As of December 31, 2016

Estimated Fair Value  

Carrying Value

  Estimated Fair Value  

Carrying Value

Level 2

Level 2

Level 2

Level 2

  $

  $

558,191   $

1,425,117  
6,976,603  
106,523  
9,066,434   $

558,191   $

1,425,117  
6,608,545  
106,611  
8,698,464   $

210,077   $

1,488,498  
4,428,074  
3,217  
6,129,866   $

210,077

1,488,498

4,179,171

3,250

5,880,996

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

The carrying value of our global revolving credit facility approximates estimated fair value, due to the variability of interest rates and the stability of our
credit ratings.
The carrying value of our unsecured term loans approximates estimated fair value, due to the variability of interest rates and the stability of our credit
ratings.
Valuations for our unsecured senior notes and mortgage loans are determined based on the expected future payments discounted at risk-adjusted rates.
The 2019 Notes, 5.875% 2020 Notes, 3.400% 2020 Notes, 2021 Notes, 3.950% 2022 Notes, 3.625% 2022 Notes, 4.750% 2023 Notes, 2.750% 2023
Notes, 2.625% 2024 Notes, 2.750% 2024 Notes, 4.750% 2025 Notes, 4.250% 2025 Notes, 2027 Notes and 2029 Notes are valued based on quoted market
prices.
The carrying value of the 5.875% 2020 Notes, 3.400% 2020 Notes, 2021 Notes, 3.625% 2022 Notes, 3.950% 2022 Notes, 4.750% 2023 Notes, 2.750%
2023 Notes, 2.625% 2024 Notes, 2.750% 2024 Notes, 4.250% 2025 Notes, 2027 Notes and 2029 Notes are net of discount of $18.5 million and $15.6
million in the aggregate as of December 31, 2017 and December 31, 2016 , respectively.
The estimated fair value and carrying value are exclusive of deferred financing costs of  $7.2 million  and  $10.9 million  as of  December 31, 2017  and 
December 31, 2016 , respectively.
The estimated fair value and carrying value are exclusive of deferred financing costs of  $4.8 million  and  $6.1 million  as of  December 31, 2017  and 
December 31, 2016 , respectively.
The estimated fair value and carrying value are exclusive of deferred financing costs of  $37.8 million  and  $25.4 million  as of  December 31, 2017  and 
December 31, 2016 , respectively.
The estimated fair value and carrying value are exclusive of deferred financing costs of  $0.0 million  and  $0.0 million  as of  December 31, 2017  and 
December 31, 2016 , respectively.

17. Tenant Leases

The future minimum lease payments to be received (excluding operating expense reimbursements) by us as of December 31, 2017 , under non-cancelable

operating leases are as follows (in thousands):

2018

2019

2020

2021

2022

Thereafter

Total

$

$

2,065,850

1,671,115

1,361,404

1,147,928

881,117

2,958,666

10,086,080

166

 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

18. Commitments and Contingencies

(a)
Operating
Leases

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

We lease space at certain of our data centers from third parties, primarily data centers acquired as part of the Telx Acquisition and European Portfolio

Acquisition, and certain equipment under noncancelable operating lease agreements. The operating leases for our data centers expire at various dates
through 2033 with renewal options available to us. The lease agreements typically provide for base rental rates that increase at defined intervals during the term of
the lease.

As of December 31, 2017, certain of our data centers, primarily in Europe are subject to ground leases. The termination dates of these ground leases range

from 2036 to 2981. These ground leases generally require us to make fixed annual rental payments. In addition, our corporate headquarters along with several
regional office locations are subject to leases with termination dates ranging from 2018 to 2024. These office leases generally require us to make fixed annual
rental payments plus pay our share of common area, real estate and utility expenses. Some of our ground and office leases include escalation clauses and renewal
options.

Rental expense for our operating leases, including ground leases, was approximately $82.5 million , $83.6 million , and $24.6 million for the years ended

December 31, 2017 , 2016 and 2015 , respectively.

The minimum commitment under these leases, excluding fully prepaid ground leases, as of December 31, 2017 was as follows (in thousands):

2018

2019

2020

2021

2022

Thereafter

Total

$

$

76,231

81,051

83,738

82,243

78,129

544,485

945,877

(b)
Capital
Lease
Obligations

Capital lease obligations are recorded for leases in which the Company was deemed to be the owner during the construction period under lease accounting

guidance. Further, each lease contains provisions indicating continuing involvement with the property at the end of the construction period. As a result, in
accordance with applicable accounting guidance, buildings and related assets subject to the leases are reflected in buildings and improvements and accumulated
depreciation and amortization on the Company’s consolidated balance sheets and depreciated over their remaining useful lives. The present value of the lease
payments associated with these buildings is recorded as capital lease obligations and is classified in accounts payable and other accrued liabilities in the
consolidated balance sheets. The financing obligation is amortized using the effective interest method and the interest rate is determined in accordance with the
requirements of sale-leaseback accounting.

167

Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

Future minimum lease payments and their present value for property under capital lease obligations as of  December 31, 2017 , are as follows (in

thousands):  

2018

2019

2020

2021

2022

Thereafter

Less amount representing interest

Present value

(c)
Construction
Commitments

$

$

10,933

12,738

12,839

12,941

13,357

198,181

260,989

(90,178)

170,811

Our properties require periodic investments of capital for tenant-related capital expenditures and for general capital improvements and from time to time in
the normal course of our business, we enter into various construction contracts with third parties that may obligate us to make payments. At December 31, 2017 ,
we had open commitments, including amounts reimbursable of approximately  $6.3 million , related to construction contracts of approximately $317.3 million .

(d)
Legal
Proceedings

Although the Company is involved in legal proceedings arising in the ordinary course of business, as of December 31, 2017 , the Company is not currently a

party to any legal proceedings nor, to its knowledge, is any legal proceeding threatened against it that it believes would have a material adverse effect on its
financial position, results of operations or liquidity.

168

 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

19. Quarterly Financial Information (Digital Realty Trust, Inc.) (unaudited)

The tables below reflect selected quarterly information for the years ended December 31, 2017 and 2016 . Certain amounts have been reclassified to conform

to the current year presentation (in thousands, except per share amounts).

Total operating revenues

Net income

Net income attributable to Digital Realty Trust, Inc.

Preferred stock dividends and issuance costs 
associated with redeemed preferred stock

Net income (loss) available to common stockholders

Basic net income (loss) per share available to 
common stockholders

Diluted net income (loss) per share available to 
common stockholders

Total operating revenues

Net income

Net income attributable to Digital Realty Trust, Inc.

Preferred stock dividends and issuance costs 
associated with redeemed preferred stock

Net income available to common stockholders

Basic net income per share available to 
common stockholders

Diluted net income per share available to 
common stockholders

December 31, 
2017

September 30, 
2017

June 30, 
2017

March 31, 
2017

Three Months Ended

731,445   $

609,925   $

565,989   $

79,658  

73,635  

20,329  

53,306  

12,475  

12,435  

16,575  

(4,140)  

79,571  

78,651  

20,814  

57,837  

0.26   $

(0.02)   $

0.36   $

0.26   $

(0.02)   $

0.36   $

550,569

84,563

83,538

17,393

66,145

0.42

0.41

December 31, 
2016

September 30, 
2016

June 30, 
2016

March 31, 
2016

Three Months Ended

576,787   $

546,293   $

514,934   $

96,140  

95,075  

17,393  

77,682  

222,435  

219,188  

31,858  

187,330  

50,944  

50,375  

22,424  

27,951  

0.49   $

1.27   $

0.19   $

0.49   $

1.25   $

0.19   $

504,199

62,333

61,549

22,424

39,125

0.27

0.27

$

$

$

$

$

$

169

 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES
DIGITAL REALTY TRUST, L.P. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS- (Continued)
December 31, 2017 and 2016

20. Quarterly Financial Information (Digital Realty Trust, L.P.) (unaudited)

The tables below reflect selected quarterly information for the years ended December 31, 2017 and 2016 . Certain amounts have been reclassified to conform

to the current year presentation (in thousands, except per unit amounts).

Total operating revenues

Net income

Net income attributable to Digital Realty Trust, L.P.

Preferred unit distributions and issuance costs associated 
with redeemed preferred units

Net income (loss) available to common unitholders

Basic net income (loss) per unit available to common 
unitholders

Diluted net income (loss) per unit available to common 
unitholders

Total operating revenues

Net income

Net income attributable to Digital Realty Trust, L.P.

Preferred unit distributions and issuance costs associated 
with redeemed preferred units

Net income available to common unitholders

Basic net income per unit available to common unitholders

Diluted net income per unit available to common unitholders

December 31, 
2017

September 30, 
2017

June 30, 
2017

March 31, 
2017

Three Months Ended

731,445   $

609,925   $

565,989   $

79,658  

75,773  

20,329  

55,444  

12,475  

12,356  

16,575  

(4,219)  

0.26   $

(0.02)   $

0.26   $

(0.02)   $

79,571  

79,458  

20,814  

58,644  

0.36   $

0.36   $

550,569

84,563

84,442

17,393

67,049

0.42

0.41

December 31, 
2016

September 30, 
2016

June 30, 
2016

March 31, 
2016

Three Months Ended

576,787   $

546,293   $

514,934   $

96,140  

96,229  

17,393  

78,836  

0.49   $

0.49   $

222,435  

222,212  

31,858  

190,354  

1.27   $

1.25   $

50,944  

50,832  

22,424  

28,408  

0.19   $

0.19   $

504,199

62,333

62,212

22,424

39,788

0.27

0.27

$

$

$

$

$

$

170

 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

Improvements

  Carrying

costs

Land

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

PROPERTIES:

36 NE 2nd Street

2323 Bryan
Street

300 Boulevard
East

2334 Lundy
Place

2440 Marsh
Lane

375 Riverside
Parkway

4849 Alpha
Road

Miami

Dallas

New York

Silicon Valley  

Dallas

Atlanta

Dallas

600 West
Seventh Street

2045 & 2055
Lafayette Street

11830 Webb
Chapel Road

150 South First
Street

200 Paul Avenue

Los Angeles

Silicon Valley  

Dallas

Silicon Valley  
San Francisco  

1100 Space Park
Drive

Silicon Valley  

3015 Winona
Avenue

1125 Energy
Park Drive

Los Angeles

Minneapolis

350 East Cermak
Road

Chicago

—  

1,942  

—  

1,838  

—  

5,140  

—  

3,607  

—  

1,477  

—  

1,250  

—  

2,983  

—  

18,478  

—  

6,065  

—  

5,881  

—  
—  

2,068  
14,427  

—  

5,130  

—  

6,534  

—  

2,775  

—  

8,466  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  
—  

—  

—  

—  

—  

24,184  

77,604  

48,526  

23,008  

10,330  

11,578  

10,650  

50,824  

43,817  

34,473  

29,214  
75,777  

18,206  

8,356  

10,761  

22,089

53,297

61,913

67

73,380

31,629

43,947

58,286

15

2,355

1,499

98,738

35,841

—  

1,970  

—  

1,838  

—  

5,140  

—  

3,607  

—  

1,486  

—  

1,250  

—  

2,983  

—  

18,478  

—  

6,065  

—  

5,881  

—  
—  

2,068  
14,445  

—  

5,130  

6

—  

6,534  

(5,668)

(5,900)  

2,775  

103,232  

269,616

—  

8,620  

171

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  
—  

—  

—  

—  

—  

46,245  

48,215  

(15,363)

2002

130,901  

132,739  

(66,339)

2002

110,439  

115,579  

(64,836)

2002

23,075  

26,682  

(10,277)

2002

83,701  

85,187  

(61,783)

2003

43,207  

44,457  

(29,212)

2003

54,597  

57,580  

(29,230)

2004

109,110  

127,588  

(64,113)

2004

43,832  

49,897  

(18,230)

2004

36,828  

42,709  

(16,371)

2004

30,713  
174,497  

32,781  
188,942  

(12,707)

(79,960)

2004

2004

54,047  

59,177  

(31,604)

2004

8,362  

14,896  

(3,643)

2004

5,093  

7,868  

(4,002)

2005

372,694  

381,314  

(214,241)

2005

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

Improvements

  Carrying 

costs

  Land

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

PROPERTIES:

Denver

8534 Concord
Center Drive
2401 Walsh Street Silicon Valley  
2403 Walsh Street Silicon Valley  
200 North Nash
Street

Los Angeles

731 East Trade
Street

Charlotte

113 North Myers

Charlotte

125 North Myers

Charlotte

Paul van
Vlissingenstraat 16 Amsterdam

600-780 S. Federal Chicago

115 Second
Avenue

Chemin de
l’Epinglier 2

Boston

Geneva

7500 Metro Center
Drive

Austin

3 Corporate Place New York

1115 Centennial
Avenue

4025 Midway
Road

Clonshaugh
Industrial Estate

6800 Millcreek
Drive

New York

Dallas

Dublin

Toronto

101 Aquila Way

Atlanta

Digital Houston

Houston

120 E Van Buren

Phoenix

—   

—   

—   

—   

(1)

2,370

—   

—   

—   

—   

—   

—   

—   

—   

—  

2,181  
5,775  
5,514  

4,562  

1,748  
1,098  
1,271  

—  
7,849  

1,691  

—  

1,177  
1,543  

581  

—   

2,196  

—  
—  
—  

—  

—  
—  
—  

—  
—  

—  

—  

—  
—  

—  

—  

—   

—   

—   

—   

—   

—  

1,444  

1,657  
1,480  
6,965  
4,524  

—  
—  
—  
—  

11,561  
19,267  
11,695  

12,503  

5,727  
3,127  
3,738  

15,255  
27,881  

12,569  

20,071  

4,877  
12,678  

—  

14,037  

5,569  

11,352  
34,797  
23,492  
157,822  

—  
—  
—  

2,181  
5,775  
5,514  

—  

4,562  

—  
—  
—  

—  
—  

1,748  
1,098  
1,271  

—  
7,849  

—  

1,691  

—  

—  
—  

—  

—  

1,177  
1,543  

581  

—  

2,196  

—  

—  
—  
—  
—  

—  

1,657  
1,480  
6,965  
4,524  

749

37

48

232

267

2,907

6,329

28,294

33,444

11,458

357

67,433

85,503

41,544

29,777

2,091

2,285

(14,520)

146,391

118,049

172

—  
—  
—  

—  

—  
—  
—  

—  
—  

—  

—  

—  
—  

—  

—  

99  

—  
—  
—  
—  

12,310  
19,304  
11,743  

14,491  
25,079  
17,257  

(5,150)

(8,229)

(5,292)

2005

2005

2005

12,735  

17,297  

(6,279)

2005

5,994  
6,034  
10,067  

43,549  
61,325  

7,742  
7,132  
11,338  

43,549  
69,174  

(2,416)

(2,343)

(7,578)

(18,897)

(17,051)

2005

2005

2005

2005

2005

24,027  

25,718  

(14,640)

2005

20,428  

20,428  

(8,060)

2005

72,310  
98,181  

73,487  
99,724  

(10,780)

(81,615)

41,544  

42,125  

—  

2005

2005

2005

43,814  

46,010  

(29,196)

2006

9,005  

9,104  

(5,635)

2006

13,637  
20,277  
169,883  
275,871  

15,294  
21,757  
176,848  
280,395  

(6,451)

—  

(58,292)

(127,847)

2006

2006

2006

2006

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

(A)

(A)

(A)

(A)

(A)

(A)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

Improvements   Carrying 

costs

Land

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

PROPERTIES:

Gyroscoopweg
2E-2F

Clonshaugh
Industrial Estate
II

Amsterdam

Dublin

600 Winter Street Boston

2300 NW 89th
Place

Miami

2055 East
Technology
Circle

Unit 9,
Blanchardstown
Corporate Park

Phoenix

Dublin

111 8th Avenue New York

8100 Boone
Boulevard

21110 Ridgetop
Circle

3011 Lafayette
Street

44470 Chilum
Place

43881 Devin
Shafron Drive

43831 Devin
Shafron Drive

43791 Devin
Shafron Drive

Mundells
Roundabout

N. Virginia

N. Virginia

Silicon Valley  

N. Virginia

N. Virginia

N. Virginia

N. Virginia

London

1500 Space Park
Drive

Silicon Valley  

Cressex 1

London

Naritaweg 52

Amsterdam

1 St. Anne’s
Boulevard

London

—  

—  

—  
—  

—  
1,429  

—  

1,022  

—  

—  

—  
—  

—  

1,927  
—  

—  

—  

2,934  

—  

3,354  

—  

3,531  

—  

4,653  

—  

3,027  

—  

3,490  

—  

31,354  

—  
—  
—  

6,732  
3,629  
—  

—  

—  
—  

—  

—  

—  
—  

—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
1,192  

—  

1,490  

—  

13,450  

(809)

—  

—  

—  
6,228  

3,767  

82,828

456

19

—  
—  

—  

—  
1,429  

1,022  

8,519  

27,727

—  

—  

40,024  
17,688  

158  

14,311  

10,305  

37,360  

23,631  

16,247  

17,444  

—  

6,325  
9,036  
23,441  

1,045  

27,103

23,442

1,272

1,307

50,027

1

94,180

1,382

77,003

45,616

46,196

21,090

(4,214)

(701)

173

—  
—  

—  

—  

—  

—  

—  

—  

—  

1,738  
—  

—  

2,934  

3,354  

3,531  

4,653  

3,027  

3,490  

—  

21,539  

—  
—  
—  

—  

4,106  
2,598  
—  

1,034  

—  

—  
—  

—  

—  

—  
—  

—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
981  

—  

12,641  

12,641  

(5,065)

2006

82,828  
6,684  

82,828  
8,113  

(45,139)

(2,369)

2006

2006

3,786  

4,808  

(1,645)

2006

36,246  

36,246  

(27,758)

2006

67,316  
41,130  

69,054  
41,130  

(23,961)

(29,675)

2006

2006

1,430  

1,430  

(1,268)

2006

15,618  

18,552  

(5,634)

2007

60,332  

63,686  

(49,943)

2007

37,361  

40,892  

(11,118)

2007

117,811  

122,464  

(90,464)

2007

17,629  

20,656  

(5,836)

2007

94,447  

97,937  

(54,108)

2007

55,431  

76,970  

(12,931)

2007

55,147  
31,157  
19,438  

59,253  
33,755  
20,419  

(50,825)

(19,656)

(5,816)

2007

2007

2007

800  

1,834  

(203)

2007

(A)

(C)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

(A)

(A)

(A)

(A)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

Improvements   Carrying 

costs

Land

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

PROPERTIES:

2 St. Anne’s
Boulevard

3 St. Anne’s
Boulevard

365 South
Randolphville
Road

701 & 717
Leonard Street

Manchester
Technopark

1201 Comstock
Street

1550 Space Park
Drive

1525 Comstock
Street

43830 Devin
Shafron Drive

London

London

New York

Dallas

Manchester

Silicon Valley  

Silicon Valley  

Silicon Valley  

N. Virginia

1232 Alma Road Dallas

900 Quality Way Dallas

1210 Integrity
Drive

907 Security
Row

Dallas

Dallas

908 Quality Way Dallas

904 Quality Way Dallas

1215 Integrity
Drive

1350 Duane &
3080 Raymond

Dallas

Silicon Valley  

45901 & 45845
Nokes Boulevard N. Virginia

—  

922  

—  

22,079  

—  

3,019  

—  

2,165  

—  

—  

—  

2,093  

—  

2,301  

—  

2,293  

—  
—  
—  

5,509  
2,267  
1,446  

—  

2,041  

—  
—  
—  

—  

333  
6,730  
760  

—  

—  

7,081  

—  

3,437  

—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  

—  

—  
—  
—  

—  

—  

—  

695  

16,351  

17,404  

9,934  

23,918  

1,606  

766  

16,216  

—  
3,740  
1,659  

3,389  

344  
4,493  
744  

—  

69,817  

28,785  

34,613

85,898

290,404

835

(7,223)

26,841

2,649

30,980

73,893

64,717

69,251

151,385

97,522

13,873

6,819

70,076

61

450

—  

689  

—  

15,189  

—  

—  

—  

—  

—  

—  

—  
—  
—  

—  

—  
—  
—  

—  

—  

—  

3,019  

2,165  

—  

3,398  

2,056  

2,061  

5,509  
2,266  
1,437  

3,429  

2,112  
2,067  
1,151  

995  

7,081  

3,437  

—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  

—  

—  
—  
—  

—  

—  

—  

35,541  

36,230  

(5,860)

2007

109,139  

124,328  

(55,453)

2007

307,808  

310,827  

(112,084)

2008

10,769  

12,934  

(2,911)

2008

16,695  

16,695  

(4,560)

2008

27,142  

30,540  

(18,365)

2008

3,660  

5,716  

—  

2008

47,428  

49,489  

(30,883)

2008

73,893  
68,458  
70,919  

79,402  
70,724  
72,356  

(36,654)

(37,895)

(17,711)

2009

2009

2009

153,386  

156,815  

(2,344)

2009

96,087  
23,029  
7,172  

98,199  
25,096  
8,323  

(6,008)

(16,779)

(1,004)

2009

2009

2009

69,081  

70,076  

(14,120)

2009

69,878  

76,959  

(14,781)

2009

29,235  

32,672  

(6,552)

2009

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

(C)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

(A)

(A)

174

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

Improvements

  Carrying 

costs

Land

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

PROPERTIES:

21561 & 21571
Beaumeade
Circle

N. Virginia

60 & 80 Merritt New York

55 Middlesex

Boston

128 First Avenue Boston

Cateringweg 5

Amsterdam

1725 Comstock
Street

Silicon Valley  

3105 Alfred
Street

365 Main Street

720 2nd Street

2260 East El
Segundo

Silicon Valley  
San Francisco  
San Francisco  

Los Angeles

2121 South Price
Road

Phoenix

4030 Lafayette

N. Virginia

4040 Lafayette

N. Virginia

4050 Lafayette

N. Virginia

—  
—  
—  
—  
—  

3,966  
3,418  
9,975  
5,465  
—  

—  

3,274  

—  
—  
—  

6,533  
22,854  
3,884  

—  

11,053  

—  
—  
—  
—  

7,335  
2,492  
1,246  
1,246  

Silicon Valley  

—  

8,976  

2805 Lafayette
Street

29A
International
Business Park

43940 Digital
Loudoun Plaza

44060 Digital
Loudoun Plaza

44100 Digital
Loudoun Plaza

43780 Digital
Loudoun Plaza

1-11 Templar
Road

13-23 Templar
Road

Singapore

N. Virginia

N. Virginia

N. Virginia

N. Virginia

Sydney

Sydney

Fountain Court

London

72 Radnor Drive Melbourne

98 Radnor Drive Melbourne

105 Cabot Street Boston

—  

—  

—  

6,229  

—  

3,700  

—  

3,700  

—  

3,671  

—  

6,937  

4,236  
7,544  
2,568  
1,899  
2,386  

—  
—  
—  
—  

—  
—  
—  
—  
3,518  

—  

—  
—  
—  

—  

—  
—  
—  
—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  
—  
—  

24,211  
71,477  
68,363  
185,348  
3,517  

6,567  

3,725  
158,709  
116,861  

51,397  

238,452  
16,912  
4,267  
4,371  

18,155  

137,545  

—  

—  

—  

—  

—  

—  
12,506  
—  
—  
—  

45  
94,414  
10,483  
38,419  
40,982  

39,032  

101,204  
26,171  
10,235  

—  
—  
—  
—  
—  

—  

—  
—  
—  

3,966  
3,418  
9,975  
5,465  
—  

3,274  

7,093  
22,854  
3,884  

15,162  

—  

11,053  

—  
—  
—  
—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  
—  
—  

7,335  
2,492  
1,246  
1,246  

8,294  

—  

7,564  

3,441  

3,493  

4,186  

4,837  

3,845  
6,695  
1,939  
1,490  
2,448  

208,424  
5,703  
24,667  
35,673  

129,101  

219,764  

269,748  

187,396  

138,933  

120,875  

69,908  

4,956  
100,618  
59,222  
39,531  
58,828  

175

—  
—  
—  
—  
3,451  

24,256  
165,891  
78,846  
223,767  
44,566  

28,222  
169,309  
88,821  
229,232  
48,017  

(5,010)

(35,258)

(22,557)

(61,794)

(7,662)

2009

2010

2010

2010

2010

—  

—  
—  
—  

—  

—  
—  
—  
—  

—  

—  

—  

—  

—  

—  

—  

—  
—  
—  
—  
—  

45,599  

48,873  

(22,476)

2010

104,369  
184,880  
127,096  

111,462  
207,734  
130,980  

(26,181)

(46,836)

(29,074)

2010

2010

2010

66,559  

77,612  

(18,057)

2010

446,876  
22,615  
28,934  
40,044  

454,211  
25,107  
30,180  
41,290  

(108,717)

(5,546)

(3,755)

(20,175)

2010

2010

2010

2010

147,938  

156,232  

(24,526)

2010

357,309  

357,309  

(106,907)

2010

268,413  

275,977  

(58,213)

2011

187,655  

191,096  

(17,720)

2011

139,140  

142,633  

(5,679)

2011

120,360  

124,546  

(4,420)

2011

72,008  

76,845  

(13,643)

2011

5,347  
113,973  
59,851  
39,940  
58,766  

9,192  
120,668  
61,790  
41,430  
61,214  

—  

(19,418)

(8,281)

(13,924)

(7,376)

2011

2011

2011

2011

2011

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

(C)

(C)

(C)

(C)

(C)

(A)

(C)

(C)

(C)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

Improvements

  Carrying 

costs

Land

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

PROPERTIES:

3825 NW
Aloclek Place

Portland

Profile Park

Dublin

Atlanta

760 Doug Davis
Drive
360 Spear Street San Francisco  
2501 S. State
Hwy 121

Dallas

9333 Grand
Avenue

9355 Grand
Avenue

9377 Grand
Avenue

Chicago

Chicago

Chicago

850 E Collins

Dallas

950 E Collins

Dallas

400 S. Akard

Dallas

410 Commerce
Boulevard

New York

Croydon

Watford

London

London

Unit 21
Goldsworth Park London

11900 East
Cornell

701 Union
Boulevard

23 Waterloo
Road

1 Rue Jean-
Pierre

Liet-dit le Christ
de Saclay

Denver

New York

Sydney

Paris

Paris

127 Rue de Paris Paris

17201
Waterview
Parkway

1900 S. Price
Road

Dallas

Phoenix

—   

—   

1,689  
6,288  

4,837  
—   
—    19,828  

—    23,137  

—   

5,686  

—

—

—   

1,614  
1,546  
—   
—    10,075  

—   

—   

—   

—  
1,683  
—  

—    17,334  

—   

3,352  

—    10,045  

—   

—   

—   

—   

—   

—   

7,112  

9,621  

3,402  
8,637  

2,070  

5,380  

—  
—  

—  
—  

—  

—  
—

—

—  
—  
—  

—  
—  
7,355  

—  

—  

—  

—  

—  

—  
—  

—  

—  

—  
—  

53,551  
56,733  

93,943  

14,515  
—

57,750

46,081

3,282

(912)

17,767

73,789

227,922

—  
—  

—  
—  

1,689  
5,976  

4,837  
19,828  

—  

23,137  

—  
—

1,205  
2,518

—  
—  

—  
—  

—  

—  
—

57,750  
46,393  

56,833  
55,821  

59,439  
52,369  

61,670  
75,649  

(17,667)

(2,698)

(11,618)

(12,113)

2011

2011

2011

2011

111,710  

134,847  

(26,920)

2012

92,785  
225,404

93,990  
227,922

(27,826)

(14,665)

2012

2012

—

107,005

—

2,102

—

104,903

107,005

(1,575)

2012

—  
—  
62,730  

—  
104,728  
219,273  

928,129  

80,640  

6,755  

3,868  

35,825  

3,090  
10,838  

6,409  

16,975  

83,988

74,611

2,473

29,839

48,677

5,693

(120,819)

2,236

26,299

(2,731)

(4,092)

(584)

(1,753)

(1)

975

176

—  
—  
—  

—  
—  
—  

1,614  
1,546  
10,075  

—  
2,413  
—  

—  

13,495  

—  

3,352  

—  

10,045  

—  

—  

—  
—  

—  

—  

5,343  

8,754  

3,096  
7,860  

2,070  

5,512  

—  
—  
—  

—  
—  
6,619  

—  

—  

—  

—  

—  

—  
—  

—  

—  

83,988  
74,611  
65,203  

85,602  
76,157  
75,278  

29,839  
152,675  
225,702  

29,839  
155,088  
232,321  

(15,024)

(9,276)

(9,792)

(10,439)

(23,186)

(34,406)

2012

2012

2012

2012

2012

2012

811,149  

824,644  

(128,322)

2012

82,876  

86,228  

(14,534)

2012

33,054  

43,099  

—  

2012

2,906  

8,249  

(410)

2012

32,600  

41,354  

(5,912)

2012

2,812  
9,862  

5,908  
17,722  

(658)

(2,225)

2012

2012

6,408  

8,478  

(1,036)

2013

17,818  

23,330  

(2,013)

2013

(C)

(C)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

(C)

(A)

(C)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Metropolitan
Area

Toronto

Minneapolis

371 Gough
Road

1500
Towerview
Road

Principal Park London

MetCenter
Business Park Austin

Liverpoolweg
10

Amsterdam

DePresident

Amsterdam

Crawley 2

London

Digital Deer
Park 3

3 Loyang Way

Digital
Loudoun III

Digital
Frankfurt

56 Marietta
Street

2 Peekay Drive

Melbourne

Singapore

N. Virginia

Frankfurt

Atlanta

New York

100 Delawanna
Avenue

New York

60 Hudson
Street

32 Avenue of
the Americas

3433 S 120th
Place

8435
Stemmons
Freeway

2625 Walsh
Avenue

New York

New York

Seattle

Dallas

Silicon Valley

111 8th
Avenue - Telx New York

350 East
Cermak Road -
Telx

200 Paul
Avenue - Telx

2323 Bryan
Street - Telx

600 W. 7th
Street - Telx

3825 NW
Aloclek Place -
Telx

120 E. Van
Buren Street -
Telx

36 NE 2nd
Street - Telx

600-780 S.
Federal Street -
Telx

113 N. Myers
Street - Telx

Chicago

San Francisco

Dallas

Los Angeles

Portland

Phoenix

Miami

Chicago

Charlotte

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

(2)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

  Improvements   Carrying 

costs

Land

—   

7,394    

677  

96,446

—  

6,033  

—    10,190    
—    11,837    

—   

8,604    

—   

—   
—  

—  
—  

733    
6,737    
24,305    

1,600   —  
—   —  

—  

43,000   —  

—  

5,543   —  

20,054  
—  

20,314  

3,122  
—  
—  

—  
—  

—  

—  

—  

—  

1,700   —  

—   —  

211,397  

115,439  

—  

3,600   —  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—   —  

—   —  

—   —  

—   —  

—   —  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

85,438  

32,280  

30,980  

11,688  

5,023  

4,276  

42,454  

13,933  

6,719  

5,191  

3,689  

3,131  

2,848  

1,842  

1,815  

476  

3,191

110,458

(28,891)

10,368

79,880

51,331

167

120,508

179,393

62,539

13,838

15,264

4,655

8,180

2,001

1,935

1,724

6,218

8,778

4,747

2,433

2,332

2,763

928

2,088

1,460

2,389

52

—  
—  

—  

—  
—  
—  

—  
—  

10,190  
13,077  

—  

675  
8,169  
21,622  

1,765  
—  

—  

57,806  

—  

10,051  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

1,700  

—  

3,600  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

177

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

—  

—  
—  

—  

—  
—  
—  

—  
—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

98,484  

104,517  

(7,587)

2013

23,245  
109,218  

33,435  
122,295  

(3,943)

(7,136)

27  

27  

—  

13,548  
78,448  
54,014  

14,223  
86,617  
75,636  

2  
120,508  

1,767  
120,508  

(1,889)

(625)

(327)

—  

(1,092)

2013

2013

2013

2013

2013

2014

2015

2015

164,587  

222,393  

(109)

2015

58,031  

68,082  

—  

225,235  

226,935  

130,703  

130,703  

(20,292)

(16,015)

2015

2015

2015

90,093  

93,693  

(7,222)

2015

40,460  

40,460  

(7,751)

2015

32,981  

32,981  

(5,528)

2015

13,623  

13,623  

(3,510)

2015

6,747  

6,747  

(1,453)

2015

10,494  

10,494  

(1,415)

2015

51,232  

51,232  

(11,387)

2015

18,680  

18,680  

(3,385)

2015

9,152  

9,152  

(1,777)

2015

7,523  

7,523  

(1,639)

2015

6,452  

6,452  

(1,034)

2015

4,059  

4,059  

(811)

2015

4,936  

4,936  

3,302  

3,302  

(778)

2015

(711)

2015

4,204  

4,204  

(597)

2015

528  

528  

(135)

2015

(A)

(A)

(C)

(A)

(A)

(C)

(C)

(C)

(A)

(C)

(C)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances

Land

Acquired 
ground 
lease

  Buildings and 

improvements

Improvements

  Carrying 

costs

Land

Total costs

Acquired 
ground 
lease

  Buildings and 

improvements

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

1100 Space
Park Drive -
Telx

Silicon Valley

300 Boulevard
East - Telx

New York

Science Park

Amsterdam

Sovereign
House

London

Amstel
Business Park Amsterdam

Olivers Yard

London

Bonnington
House

London

West Drayton London

Lyonerstrasse

Frankfurt

Meridian Gate London

NE Corner of
Campbell
Road and
Ferris Road

Dallas

9401 West
Grand Avenue Chicago

Broad Run
Technology
Park

2425-2553
Edgington
Street

N. Virginia

Chicago

44490 Chilum
Place

N. Virginia

44520
Hastings Drive N. Virginia

44480
Hastings Drive N. Virginia

44521
Hastings Drive N. Virginia

44461 Chilum
Place

N. Virginia

21625
Gresham Drive N. Virginia

21745 Sir
Timothy Drive N. Virginia

21744 Sir
Timothy Drive N. Virginia

2200 Busse
Road

2299 Busse
Road

1780 Business
Center Drive

8217 Linton
Hall Road

Chicago

Chicago

N. Virginia

N. Virginia

1400 East
Devon Avenue Chicago

2220 De La
Cruz Blvd

1 Century
Place

Silicon Valley

Toronto

(2)

(2)

(3)

(3)

(3)

(3)

(3)

(3)

(3)

(3)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

(4)

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

665  

7,943  

2,991  

7,943  

—  

—  

—  

—  

—  

21,902  

—  

12,500  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

18,019  

—  

—  

11,950  

—  

4,180  

104,000  

6,140  

—  

12,860  

—  

13,210  

—  

9,620  

—  

17,500  

—  

16,010  

—  

10,523  

—  

17,270  

—  

12,780  

—  

7,510  

—  

22,340  

—  

11,012  

—  

84,650  

—  

26,600  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

352  

197  

75,095  

75,184  

58,138  

34,744  

14,127  

10,135  

8,407  

5,893  

—  

—  

—  

1,615  

76,745  

108,105  

278,384  

315,539  

249,371  

448,968  

289,281  

50,411  

384,558  

348,348  

106,363  

81,985  

178,627  

634,007  

116,863  

227

53

26,200

5,454

15,861

2,504

2,268

964

1,254

572

293

19,888

11,983

35

564

785

38

—  

—  

52

3,801

77,273

790

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

720  

8,243  

3,241  

8,243  

—  

—  

—  

—  

—  

22,132  

—  

16,036  

—  

26,574  

—  

11,959  

—  

—  

4,180  

6,140  

—  

12,860  

—  

13,210  

—  

9,620  

—  

17,500  

—  

16,010  

—  

10,601  

—  

17,270  

—  

—  

12,780  

(61)

—  

7,510  

—  

—  

22,340  

52,286

4,343

41,361

—  

11,094  

—  

84,650  

—  

25,742  

178

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

—  

579  

250  

579  

250  

101,240  

101,960  

(116)

2015

(99)

(3,989)

2015

2016

80,338  

88,581  

(7,741)

2016

73,749  

76,990  

36,948  

45,191  

16,395  

16,395  

11,099  

11,099  

9,661  

6,465  

9,661  

6,465  

(8,830)

(6,242)

(635)

(2,928)

(2,163)

(1,561)

63  

22,195  

16,352  

32,388  

—  

—  

2016

2016

2016

2016

2016

2016

2016

2016

3,428  

30,002  

—  

2016

1,641  

13,600  

(31)

2017

77,309  

81,489  

(1,376)

2017

108,890  

115,030  

(1,876)

2017

278,422  

291,282  

(4,934)

2017

315,539  

328,749  

(5,592)

2017

249,371  

258,991  

(4,443)

2017

449,020  

466,520  

(8,034)

2017

293,082  

309,092  

(3,856)

2017

127,606  

138,207  

—  

2017

385,348  

402,618  

(6,490)

2017

348,348  

361,128  

(6,092)

2017

106,302  

113,812  

(1,657)

2017

81,985  

104,325  

(1,203)

2017

230,831  

241,925  

—  

2017

638,350  

723,000  

(9,353)

2017

159,082  

184,824  

—  

2017

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

(C)

(C)

(C)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(A)

(C)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION- (Continued)
December 31, 2017
(In thousands)

Initial costs

Costs capitalized 
subsequent to 
acquisition

Metropolitan
Area

Encumbrances  

Land

Acquired 
ground 
lease

  Buildings and 

improvements   Improvements   Carrying 

costs

Total costs

Acquired 
ground 
lease

Land

  Buildings and 

improvements  

Total

Accumulated 
depreciation 
and 
amortization  

Date of 
acquisition 
or 
construction  

Acquisition 
(A) or 
construction 
(C)

505 North
Railroad
Avenue

Chicago

250 Williams Atlanta

Osaka 2

Osaka 3

Osaka

Osaka

De President
II

Development
Property --
N. Virginia

Development
Property --
Portland

Development
Property --
Phoenix

Amsterdam

N. Virginia

Portland

Phoenix

330 E.
Cermak Road Chicago

Other

(4)

(4)

(4)

$

—  
—  
—  
—  

—  

20,431  
—  
13,593  
4,713  

6,315  

—  

16,200  

—  

11,672  

—  

12,500  

—  
—  
—  
—  

—  

—  

—  

—  

245,810  
—  
—  
—  

—  

573  

—  
23,747  
1,720  
19  

1,680  

—  
—  
—  
—  

—  

20,431  
—  
14,367  
4,732  

7,252  

29  

—  

16,200  

5,924  

1,101  

—  

11,672  

—  

—  

—  

12,500  

—  
—  
—  
—  

—  

—  

—  

—  

245,810  
23,747  
946  
—  

266,241  
23,747  
15,313  
4,732  

743  

7,995  

(552)  
(952)  
—  
—  

—  

2017

2017

2017

2017

2017

602  

16,802  

—  

2017

7,025  

18,697  

—  

2017

—  

12,500  

—  

2017

2017

(A)

(C)

(C)

(C)

(C)

(C)

(C)

(C)

(C)

—  

—  
—  
(8,774)    
—  
106,370   $ 1,151,175   $ 13,509   $ 9,084,318   $ 6,666,934   $ (5,900)   $ 1,136,341   $ 11,150   $ 15,768,445   $ 16,915,936   $ (3,238,227)    

25,248  
8,298    

(2)  
59,034  

—  
67,332  

25,246  
—  

25,246  
67,332  

—  
—  

—  
—  

—  

—   

(1)
(2)
(3)
(4)

The balance shown excludes an unamortized premium of $241 .
Represents properties acquired in the Telx Acquisition.
Represents properties acquired in the European Portfolio Acquisition.
Represents properties acquired in the DFT Merger.

179

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
Table of Contents

Index to Financial Statements

DIGITAL REALTY TRUST, INC.
DIGITAL REALTY TRUST, L.P.
NOTES TO SCHEDULE III
PROPERTIES AND ACCUMULATED DEPRECIATION
December 31, 2017
(In thousands)

(1) Tax Cost

The aggregate gross cost of the Company’s properties for federal income tax purposes approximated $17.3 billion (unaudited) as of December 31, 2017 .

(2) Historical Cost and Accumulated Depreciation and Amortization

The following table reconciles the historical cost of the Company’s properties for financial reporting purposes for each of the years in the three-year period

ended December 31, 2017 .

Year Ended December 31,

Balance, beginning of year

Additions during period (acquisitions and improvements)

Deductions during period (dispositions, impairments and assets held for sale)

Balance, end of year

2017

2016
$ 11,558,469   $10,915,373   $ 9,982,612

2015

5,663,404  

760,051  

1,133,263

(305,937)  

(116,955)  

(200,502)

$ 16,915,936   $11,558,469   $10,915,373

The following table reconciles accumulated depreciation and amortization of the Company’s properties for financial reporting purposes for each of the years

in the three-year period ended December 31, 2017 .

Year Ended December 31,

Balance, beginning of year

Additions during period (depreciation and amortization expense)

Deductions during period (dispositions and assets held for sale)

Balance, end of year

2017

2016
$ 2,668,509   $ 2,251,268   $ 1,874,054

2015

612,970  

461,506  

429,057

(43,252)  

(44,265)  

(51,843)

$ 3,238,227   $ 2,668,509   $ 2,251,268

Schedules other than those listed above are omitted because they are not applicable or the information required is included in the consolidated financial

statements or the notes thereto.

180

 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A.    CONTROLS AND PROCEDURES

Our Management’s Reports on Internal Control over Financial Reporting for Digital Realty Trust, Inc. and Digital Realty Trust, L.P. are included in Part II,

Item 8, Financial Statements and Supplementary Data on pages 86 and 87.

Evaluation of Disclosure Controls and Procedures (Digital Realty Trust, Inc.)

The Company maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed in its reports filed under the

Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the U.S. Securities and
Exchange Commission’s rules and forms, and that such information is accumulated and communicated to its management, including its chief executive officer and
chief financial officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures,
the Company’s management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of
achieving the desired control objectives, and its management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and
procedures. Also, the Company has investments in certain unconsolidated entities, which are accounted for using the equity method of accounting. As the
Company does not control or manage these entities, its disclosure controls and procedures with respect to such entities may be substantially more limited than
those it maintains with respect to its consolidated subsidiaries.

As required by Rule 13a-15(b) or Rule 15d-15(b) of the Securities Exchange Act of 1934, as amended, management of the Company carried out an

evaluation, under the supervision and with participation of its chief executive officer and chief financial officer, of the effectiveness of the design and operation of
its disclosure controls and procedures that were in effect as of December 31, 2017 . Based on the foregoing, the Company’s management concluded that its
disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control over Financial Reporting 

During the second quarter of 2016, we completed an upgrade of our general ledger system. This system was used to produce information contained in this
Annual Report on Form 10-K. There have been no other changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and
15d-15(f) under the Exchange Act) during the year ended  December 31, 2017  that have materially affected, or are reasonably likely to materially affect, our
internal control over financial reporting.

Evaluation of Disclosure Controls and Procedures (Digital Realty Trust, L.P.)

The Operating Partnership maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed in its reports

filed under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in the
U.S. Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to its management, including the chief
executive officer and chief financial officer of its general partner, as appropriate, to allow timely decisions regarding required disclosure. In designing and
evaluating the disclosure controls and procedures, the Operating Partnership’s management recognizes that any controls and procedures, no matter how well
designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and its management is required to apply its judgment in
evaluating the cost-benefit relationship of possible controls and procedures. Also, the Operating Partnership has investments in certain unconsolidated entities,
which are accounted for using the equity method of accounting. As the Operating Partnership does not control or manage these entities, its disclosure controls and
procedures with respect to such entities may be substantially more limited than those it maintains with respect to its consolidated subsidiaries.

181

 
Table of Contents

Index to Financial Statements

As required by Rule 13a-15(b) or Rule 15d-15(b) of the Securities Exchange Act of 1934, as amended, management of the Operating Partnership carried out
an evaluation, under the supervision and with participation of the chief executive officer and chief financial officer of its general partner, of the effectiveness of the
design and operation of its disclosure controls and procedures that were in effect as of December 31, 2017 . Based on the foregoing, the Operating Partnership’s
management concluded that its disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control over Financial Reporting 

During the second quarter of 2016, we completed an upgrade of our general ledger system. This system was used to produce information contained in this
Annual Report on Form 10-K. There have been no other changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and
15d-15(f) under the Exchange Act) during the year ended  December 31, 2017  that have materially affected, or are reasonably likely to materially affect, our
internal control over financial reporting.

ITEM 9B.    OTHER INFORMATION

None.

182

Table of Contents

Index to Financial Statements

PART III

ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information concerning our directors, executive officers and corporate governance required by Item 10 will be included in the Proxy Statement to be

filed relating to our 2018 Annual Meeting of Stockholders and is incorporated herein by reference.

We have filed, as exhibits to this Annual Report on Form 10-K, the certifications of our Chief Executive Officer and Chief Financial Officer required under

Section 302 of the Sarbanes Oxley Act to be filed with the Securities and Exchange Commission regarding the quality of our public disclosure. We have furnished

to the Securities and Exchange Commission as exhibits to this Annual Report on Form 10-K for the year ended December 31, 2017 , the certifications of our Chief

Executive Officer and Chief Financial Officer required under Section 906 of the Sarbanes Oxley Act. In addition, as required by Section 303A.12 of the NYSE

Listed Company Manual, our Chief Executive Officer made his annual certification to the NYSE stating that he was not aware of any violation by the Company of
the corporate governance listing standards of the NYSE.  

ITEM 11.    EXECUTIVE COMPENSATION

The information concerning our executive compensation required by Item 11 will be included in the Proxy Statement to be filed relating to our 2018 Annual

Meeting of Stockholders and is incorporated herein by reference.

ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information concerning the security ownership of certain beneficial owners and management and related stockholder matters (including equity

compensation plan information) required by Item 12 will be included in the Proxy Statement to be filed relating to our 2018 Annual Meeting of Stockholders and is
incorporated herein by reference.  

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE

The information concerning certain relationships, related transactions and director independence required by Item 13 will be included in the Proxy Statement

to be filed relating to our 2018 Annual Meeting of Stockholders and is incorporated herein by reference.

ITEM 14.    PRINCIPAL ACCOUNTING FEES AND SERVICES

The information concerning our principal accounting fees and services required by Item 14 will be included in the Proxy Statement to be filed relating to our

2018 Annual Meeting of Stockholders and is incorporated herein by reference.

183

 
 
 
Table of Contents

Index to Financial Statements

  ITEM 15.    EXHIBITS.

PART IV

Exhibit
Number

2.1

3.1

3.2

3.3

3.4

4.1

   Description

Agreement and Plan of Merger, dated as of June 8, 2017, by and among Digital Realty Trust, Inc., Digital Realty Trust, L.P., Penguins REIT
Sub LLC, Penguins OP Sub, LLC, Penguins OP Sub 2, LLC, DuPont Fabros Technology, Inc., and DuPont Fabros Technology, L.P.
(incorporated by reference to Exhibit 2.1 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust,
L.P. (File Nos. 001-32336 and 000-54023) filed on June 9, 2017).

   Articles of Amendment and Restatement of Digital Realty Trust, Inc., as amended (incorporated by reference to Exhibit 3.1 to the Combined
Quarterly Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on
November 9, 2017).

Sixth Amended and Restated Bylaws of Digital Realty Trust, Inc. (incorporated by reference to Exhibit 3.1 to Digital Realty Trust, Inc.’s
Current Report on Form 8-K (File No. 001-32336) filed on November 15, 2016).

Certificate of Limited Partnership of Digital Realty Trust, L.P. (incorporated by reference to Exhibit 3.1 to Digital Realty Trust, L.P.’s
General Form for Registration of Securities on Form 10 filed on June 25, 2010 (File No. 000-54023)).

   Sixteenth Amended and Restated Agreement of Limited Partnership of Digital Realty Trust, L.P., as amended (incorporated by reference to
Exhibit 3.2 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336
and 000-54023) filed on September 14, 2017).

Specimen Certificate for Common Stock for Digital Realty Trust, Inc. (incorporated by reference to Exhibit 4.1 to Digital Realty Trust, Inc.’s
Registration Statement on Form S-11 (Registration No. 333-117865) (File No. 001-32336) filed on October 26, 2004).

4.2

   Specimen Certificate for Digital Realty Trust, Inc.’s 6.625% Series F Cumulative Redeemable Preferred Stock (incorporated by reference to

Exhibit 4.1 to Digital Realty Trust Inc.’s Registration Statement on Form 8-A (File No. 001-32336) filed on March 30, 2012).

4.3

4.4

4.5

4.6

4.7

   Registration Rights Agreement, dated as of October 27, 2004, by and among Digital Realty Trust, Inc., Digital Realty Trust, L.P. and the
Unit Holders, as defined therein (incorporated by reference to Exhibit 10.2 to Digital Realty Trust, Inc.’s Quarterly Report on Form 10-Q
(File No. 001-32336) filed on December 13, 2004).

Indenture, dated as of January 28, 2010, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as guarantor, and Wilmington
Trust FSB, as trustee, including the form of 5.875% Notes due 2020 (incorporated by reference to Exhibit 4.1 to Digital Realty Trust, Inc.’s
Current Report on Form 8-K (File No. 001-32336) filed on January 29, 2010).

Indenture, dated as of March 8, 2011, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as guarantor, and Deutsche Bank
Trust Company Americas, as trustee (incorporated by reference to Exhibit 4.1 to the Combined Current Report on Form 8-K of Digital
Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on March 8, 2011).

Supplemental Indenture No. 1, dated as of March 8, 2011, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as
guarantor, and Deutsche Bank Trust Company Americas, as trustee, including the form of 5.250% Notes due 2021 and the guarantee
(incorporated by reference to Exhibit 4.2 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust,
L.P. (File Nos. 001-32336 and 000-54023) filed on March 8, 2011).

Indenture, dated as of September 24, 2012, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as guarantor, and Wells
Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Combined Current Report on Form 8-K of
Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on September 24, 2012).

184

 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
  
 
 
Table of Contents

Index to Financial Statements

4.8

4.9

4.10

4.11

4.12

4.13

4.14

4.15

4.16

4.17

4.18

Supplemental Indenture No. 1, dated as of September 24, 2012, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as
guarantor, and Wells Fargo Bank, National Association, as trustee, including the form of 3.625% Notes due 2022 and the guarantee
(incorporated by reference to Exhibit 4.2 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust,
L.P. (File Nos. 001-32336 and 000-54023) filed on September 24, 2012).

Indenture, dated as of January 18, 2013, among Digital Stout Holding, LLC, Digital Realty Trust, Inc., Digital Realty Trust, L.P., Deutsche
Trustee Company Limited, as trustee, Deutsche Bank AG, London Branch, as paying agent and a transfer agent, and Deutsche Bank
Luxembourg S.A., as registrar and a transfer agent, including the form of the 4.250% Guaranteed Notes due 2025 (incorporated by reference
to Exhibit 4.1 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336
and 000-54023) filed on January 25, 2013).

Specimen Certificate for Digital Realty Trust, Inc.’s 5.875% Series G Cumulative Redeemable Preferred Stock (incorporated by reference to
Exhibit 4.1 to Digital Realty Trust, Inc.’s Registration Statement on Form 8-A (File No. 001-32336) filed on April 4, 2013).

Specimen Certificate for Digital Realty Trust, Inc.’s 7.375% Series H Cumulative Redeemable Preferred Stock (incorporated by reference to
Exhibit 4.1 to Digital Realty Trust, Inc.’s Registration Statement on Form 8-A (File No. 001-32336) filed on March 21, 2014).

Indenture, dated as of April 1, 2014, among Digital Stout Holding, LLC, Digital Realty Trust, Inc., Digital Realty Trust, L.P., Deutsche
Trustee Company Limited, as trustee, Deutsche Bank AG, London Branch, as paying agent and a transfer agent, and Deutsche Bank
Luxembourg S.A., as registrar and a transfer agent, including the form of the 4.750% Guaranteed Notes due 2023 (incorporated by reference
to Exhibit 4.1 to the Combined Current Report of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. on Form 8-K (File Nos. 001-32336
and 000-54023) filed on April 1, 2014).

Indenture, dated as of June 23, 2015, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as guarantor, and Wells Fargo
Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Combined Current Report on Form 8-K of Digital
Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on June 23, 2015).

Supplemental Indenture No. 1, dated as of June 23, 2015, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as guarantor,
and Wells Fargo Bank, National Association, as trustee, including the form of 3.950% Notes due 2022 and the guarantee (incorporated by
reference to Exhibit 4.2 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos.
001-32336 and 000-54023) filed on June 23, 2015).

Specimen Certificate for Digital Realty Trust, Inc.’s 6.350% Series I Cumulative Redeemable Preferred Stock (incorporated by reference to
Exhibit 4.1 to Digital Realty Trust, Inc.’s Registration Statement on Form 8-A (File No. 001-32336) filed on August 21, 2015).

Indenture, dated as of October 1, 2015, among Digital Delta Holdings, LLC as issuer, Digital Realty Trust, Inc. and Digital Realty Trust,
L.P., as guarantors, and Wells Fargo Bank, National Association, as trustee, including the form of the Notes and the guarantees (incorporated
by reference to Exhibit 4.1 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File
Nos. 001-32336 and 000-54023) filed on October 2, 2015).

Registration Rights Agreement, dated October 1, 2015, among Digital Delta Holdings, LLC, Digital Realty Trust, Inc., Digital Realty Trust,
L.P. and Citigroup Global Markets Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated and Morgan Stanley & Co. LLC, as
representatives of the several initial purchasers named therein (incorporated by reference to Exhibit 4.2 to the Combined Current Report on
Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on October 2, 2015).

Indenture, dated as of April 15, 2016, among Digital Euro Finco, LLC, Digital Realty Trust, Inc., Digital Realty Trust, L.P., Deutsche
Trustee Company Limited, as trustee, Deutsche Bank AG, London Branch, as paying agent and a transfer agent, and Deutsche Bank
Luxembourg S.A., as registrar and a transfer agent, including the form of the 2.625% Guaranteed Notes due 2024 (incorporated by reference
to Exhibit 4.2 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336
and 000-54023) filed on April 19, 2016).

185

  
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

4.19

4.20

4.21

4.22

4.23

4.24

4.25

4.26

10.1†

10.2

10.3†

10.4†

10.5†

Indenture, dated as of May 22, 2017, among Digital Euro Finco, LLC, Digital Realty Trust, Inc., Digital Realty Trust, L.P., Deutsche Trustee
Company Limited, as trustee, Deutsche Bank AG, London Branch, as paying agent and a transfer agent, and Deutsche Bank Luxembourg
S.A., as registrar and a transfer agent, including the form of the Floating Rate Guaranteed Notes due 2019 (incorporated by reference to the
Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023)
filed on May 23, 2017).

Supplemental Indenture No. 2, dated as of August 7, 2017, among Digital Realty Trust, L.P., as issuer, Digital Realty Trust, Inc., as
guarantor, and Wells Fargo Bank, National Association, as trustee, including the form of 2.750% Notes due 2023, the form of 3.700% Notes
due 2027 and the guarantees (incorporated by reference to Exhibit 4.2 to the Combined Current Report on Form 8-K of Digital Realty Trust,
Inc. and Digital Realty Trust, L.P.  (File Nos. 001-32336 and 000-54023) filed on August 9, 2017).

First Supplemental Indenture, dated as of September 14, 2017, among Digital Realty Trust, Inc., DuPont Fabros Technology, L.P., the
guarantor parties thereto and U.S. Bank National Association, as Trustee (incorporated by reference to Exhibit 4.1 to the Combined Current
Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on September 14,
2017) .

Third Supplemental Indenture, dated as of September 14, 2017, among Digital Realty Trust, Inc., DuPont Fabros Technology, L.P., the
guarantor parties thereto and U.S. Bank National Association, as Trustee (incorporated by reference to Exhibit 4.2 to the Combined Current
Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on September 14,
2017).

Indenture, dated as of July 21, 2017, among Digital Stout Holding, LLC, Digital Realty Trust, Inc., Digital Realty Trust, L.P., Deutsche
Trustee Company Limited, as trustee, Deutsche Bank AG, London Branch, as paying agent and a transfer agent, and Deutsche Bank
Luxembourg S.A., as registrar and a transfer agent, including the form of the 2.750% Guaranteed Notes due 2024 (incorporated by reference
to Exhibit 4.1 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336
and 000-54023) filed on July 21, 2017).

Indenture, dated as of July 21, 2017, among Digital Stout Holding, LLC, Digital Realty Trust, Inc., Digital Realty Trust, L.P., Deutsche
Trustee Company Limited, as trustee, Deutsche Bank AG, London Branch, as paying agent and a transfer agent, and Deutsche Bank
Luxembourg S.A., as registrar and a transfer agent, including the form of the 3.300% Guaranteed Notes due 2029 (incorporated by reference
to Exhibit 4.2 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336
and 000-54023) filed on July 21, 2017).

Specimen Certificate for Digital Realty Trust, Inc.’s 6.625% Series C Cumulative Redeemable Perpetual Preferred Stock (incorporated by
reference to Exhibit 4.1 to the Registration Statement on Form 8-A of Digital Realty Trust, Inc. (File No. 001-32336) filed on September 13,
2017).

Specimen Certificate for Digital Realty Trust, Inc.’s 5.250% Series J Cumulative Redeemable Preferred Stock (incorporated by reference to
Exhibit 4.1 to the Registration Statement on Form 8-A of Digital Realty Trust, Inc. (File No. 001-32336) filed on August 4, 2017).

Form of Indemnification Agreement by and between Digital Realty Trust, Inc. and its directors and officers (incorporated by reference to
Exhibit 10.4 to Digital Realty Trust, Inc.’s Registration Statement on Form S-11 (Registration No. 333-117865) filed on October 13, 2004).

Contribution Agreement, dated as of July 31, 2004, by and among Digital Realty Trust, L.P., San Francisco Wave eXchange, LLC, Santa
Clara Wave eXchange, LLC and eXchange colocation, LLC (incorporated by reference to Exhibit 10.12 to Digital Realty Trust, Inc.’s
Registration Statement on Form S-11 (Registration No. 333-117865) filed on September 17, 2004).

Form of Profits Interest Units Agreement (incorporated by reference to Exhibit 10.44 to Digital Realty Trust, Inc.’s Quarterly Report on
Form 10-Q (File No. 001-32336) filed on December 13, 2004).

Form of Digital Realty Trust, Inc. Incentive Stock Option Agreement (incorporated by reference to Exhibit 10.45 to Digital Realty Trust,
Inc.’s Quarterly Report on Form 10-Q (File No. 001-32336) filed on December 13, 2004).

Form of Class C Profits Interest Units Agreement (incorporated by reference to Exhibit 10.1 to Digital Realty Trust, Inc.’s Quarterly Report
on Form 10-Q (File No. 001-32336) filed on August 9, 2007).

186

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
  
 
 
Table of Contents

Index to Financial Statements

10.6†

10.7†

10.8†

10.9†

First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004 Incentive Award Plan
(incorporated by reference to Appendix A to Digital Realty Trust, Inc.’s definitive proxy statement on Schedule 14A (File No. 001-32336)
filed on March 30, 2007).

Form of 2008 Performance-Based Profits Interest Units Agreement (incorporated by reference to Exhibit 10.3 to Digital Realty Trust, Inc.’s
Quarterly Report on Form 10-Q (File No. 001-32336) filed on May 9, 2008).

First Amendment to First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004
Incentive Award Plan (incorporated by reference to Exhibit 10.4 to Digital Realty Trust, Inc.’s Quarterly Report on Form 10-Q (File No.
001-32336) filed on May 9, 2008).

   Second Amendment to First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004
Incentive Award Plan (incorporated by reference to Exhibit 10.4 to Digital Realty Trust, Inc.’s Quarterly Report on Form 10-Q (File No.
001-32336) filed on August 6, 2009).

10.10†

   Third Amendment to First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004

Incentive Award Plan (incorporated by reference to Exhibit 10.1 to Digital Realty Trust, Inc.’s Quarterly Report on Form 10-Q (File No.
001-32336) filed on November 9, 2009).

10.11†

10.12†

10.13

10.14

10.15

10.16

10.17

Fourth Amendment to First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004
Incentive Award Plan (incorporated by reference to Exhibit 10.1 to the Combined Quarterly Report on Form 10-Q of Digital Realty Trust,
Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on August 7, 2012).

Fifth Amendment to First Amended and Restated Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2004
Incentive Award Plan. (incorporated by reference to exhibit 10.46 to the Combined Annual Report on Form 10-K of Digital Realty Trust,
Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on March 2, 2015).

Amended and Restated Note Purchase and Private Shelf Agreement, dated as of November 3, 2011, among Digital Realty Trust, L.P., Digital
Realty Trust, Inc., the subsidiary guarantors named therein, Prudential Investment Management, Inc. and the Prudential Affiliates named
therein (incorporated by reference to Exhibit 10.12 to the Combined Annual Report on Form 10-K of Digital Realty Trust, Inc. and Digital
Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on February 27, 2012).

Amendment No. 1 to the Amended and Restated Note Purchase and Private Shelf Agreement, dated as of August 15, 2013, between Digital
Realty Trust, L.P. and Prudential Investment Management, Inc. (incorporated by reference to the Exhibit 10.3 to the Combined Quarterly
Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on November
12, 2013).

Release of Guarantors, dated as of January 27, 2014 executed by Digital Realty Trust, L.P., Prudential Investment Management, Inc., and the
other Purchasers party to the Amended and Restated Note Purchase and Private Shelf Agreement, dated as of November 3, 2011
(incorporated by reference to Exhibit 10.32 to the Combined Annual Report on Form 10-K of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on February 28, 2014).

Release of Guarantors, dated as of April 27, 2015, executed by Digital Realty Trust, L.P., Prudential Investment Management, Inc., and the
other Purchasers party to the Amended and Restated Note Purchase and Private Shelf Agreement, dated as of November 3, 2011
(incorporated by reference to Exhibit 10.3 to the Combined Quarterly Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on August 6, 2015).

Release of Guarantors, dated as of June 30, 2015, executed by Digital Realty Trust, L.P., Prudential Investment Management, Inc., and the
other Purchasers party to the Amended and Restated Note Purchase and Private Shelf Agreement, dated as of November 3, 2011
(incorporated by reference to Exhibit 10.4 to the Combined Quarterly Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on August 6, 2015).

187

  
 
 
  
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

10.18

10.19†

10.20†

10.21†

10.22†

10.23†

10.24†

10.25†

10.26†

Joinder to Multiparty Guaranty, dated as of June 30, 2015, executed by the Additional Guarantor listed thereto pursuant to the Amended and
Restated Note Purchase and Private Shelf Agreement, dated as of November 3, 2011 (incorporated by reference to Exhibit 10.5 to the
Combined Quarterly Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023)
filed on August 6, 2015).

Director Compensation Program (incorporated by reference to Exhibit 10.2 to the Combined Quarterly Report on Form 10-Q of Digital
Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on November 9, 2016).

Digital Realty Deferred Compensation Plan (incorporated by reference to Exhibit 10.33 to the Combined Annual Report on Form 10-K of
Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on February 28, 2014).

First Amendment to Digital Realty Deferred Compensation Plan (incorporated by reference to Exhibit 10.45 to the Combined Annual Report
on Form 10-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on March 2, 2015).

Second Amendment to Digital Realty Deferred Compensation Plan (incorporated by reference to Exhibit 10.3 to the Combined Quarterly
Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on November 6,
2015).

Form of Class D Profits Interest Unit Agreement (incorporated by reference to Exhibit 10.34 to the Combined Annual Report on Form 10-K
of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on February 28, 2014).

Form of Performance-Based Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10.35 to the Combined Annual Report
on Form 10-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on February 28, 2014).

Form of Time-Based Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10.36 to the Combined Annual Report on Form
10-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on February 28, 2014).

Form of Time-Based Profits Interest Unit Agreement (incorporated by reference to Exhibit 10.23 to the Combined Annual Report on Form
10-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on March 1, 2017).

10.27†

   Form of Executive Time-Based Profits Interest Unit Agreement.

10.28†

10.29†

10.30†

10.31†

10.32†

Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2014 Incentive Award Plan (incorporated by reference to
Exhibit 10.1 to the Combined Current Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336
and 000-54023) filed on August 7, 2014).

First Amendment to Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2014 Incentive Award Plan. (incorporated
by reference to Exhibit 10.1 to the Combined Quarterly Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P.
(File Nos. 001-32336 and 000-54023) filed on November 7, 2014).

Second Amendment to Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2014 Incentive Award Plan
(incorporated by reference to Exhibit 10.44 to the Combined Annual Report on Form 10-K of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on March 2, 2015).

Third Amendment to Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2014 Incentive Award Plan (incorporated
by reference to Exhibit 10.1 to the Combined Annual Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. filed
on November 9, 2016).

Fourth Amendment to the Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2014 Incentive Award Plan
(incorporated by reference to Exhibit 10.1 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on September 14, 2017).

188

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
Table of Contents

Index to Financial Statements

10.33†

10.34†

10.35†

10.36†

10.37†

10.38†

10.39*

10.40*

10.41†

Employment Agreement among Digital Realty Trust, Inc., DLR, LLC and A. William Stein (incorporated by reference to Exhibit 10.1 to the
Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023)
filed on November 24, 2014).

Employment Agreement, dated as of April 16, 2015, by and among Digital Realty Trust, Inc., DLR LLC and Andrew P. Power (incorporated
by reference to Exhibit 10.1 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. filed on
April 16, 2015).

Employment Agreement, dated as of April 16, 2015, by and among Digital Realty Trust, Inc., DLR LLC and Jarrett B. Appleby
(incorporated by reference to Exhibit 10.2 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on April 16, 2015).

Employment Agreement, dated as of November 10, 2015, by and among Digital Realty Trust, Inc., DLR, LLC and Scott E. Peterson
(incorporated by reference to Exhibit 10.1 to the Combined Current Report on Form 8-K of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on November 16, 2015).

Employment Agreement, dated as of November 10, 2015, by and among Digital Realty Trust, Inc., DLR, LLC and Joshua A. Mills
(incorporated by reference to Exhibit 10.1 to the Combined Quarterly Report on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty
Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on May 10, 2017).

Digital Realty Trust, Inc. 2015 Employee Stock Purchase Plan (incorporated by reference to Exhibit 10.6 to the Combined Quarterly Report
on Form 10-Q of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on August 6, 2015).

First Amendment to Digital Realty Trust, Inc. 2015 Employee Stock Purchase Plan (incorporated by reference to Exhibit 4.7 to the
Registration Statement on Form S-8 of Digital Realty Trust, Inc. (File Nos. 001-32336 and 000-54023) filed on October 7, 2015).

Global Senior Credit Agreement, dated as of January 15, 2016, among Digital Realty Trust, L.P. and the other initial borrowers named
therein and additional borrowers party thereto, as borrowers, Digital Realty Trust, Inc., as parent guarantor, the subsidiary borrowers and
guarantors named therein, Citibank, N.A., as administrative agent, Bank of America, N.A., and JPMorgan Chase Bank, N.A., as syndication
agents, Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc. and J.P. Morgan Securities LLC, as joint lead
arrangers and joint book running managers, and the other agents and lenders named therein (incorporated by reference to Exhibit 10.48 to the
Combined Annual Report on Form 10-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023)
filed on February 29, 2016).

Term Loan Agreement, dated as of January 15, 2016, among Digital Realty Trust, L.P., and the other initial borrowers named therein and
additional borrowers party thereto, as borrowers, and Digital Realty Trust, Inc., as parent guarantor, the additional guarantors party thereto,
as additional guarantors, the initial lenders named therein, as the initial lenders, Citibank, N.A., as administrative agent, Bank of America,
N.A. and JPMorgan Chase Bank, N.A., as syndication agents, and Merrill Lynch, Pierce, Fenner & Smith Incorporated , Citigroup Global
Markets Inc., J.P. Morgan Securities LLC, the Bank of Nova Scotia and Sumitomo Mitsui Banking Corporation, as joint lead arrangers and
joint bookrunners for the 5-year term loan, and Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc., J.P.
Morgan Securities LLC, U.S. Bank National Association and TD Securities (USA) LLC, as joint lead arrangers and joint bookrunners for the
7-year term loan (incorporated by reference to Exhibit 10.49 to the Combined Annual Report on Form 10-K of Digital Realty Trust, Inc. and
Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on February 29, 2016).

10.42†

Form of Director Confidentiality Agreement (incorporated by reference to Exhibit 10.39 to the Combined Annual Report on Form 10-K of
Digital Realty Trust, Inc. and Digital Realty Trust, L.P. (File Nos. 001-32336 and 000-54023) filed on March 1, 2017).

12.1

21.1

21.2

23.1

   Statement of Computation of Ratios.

   List of Subsidiaries of Digital Realty Trust, Inc.

   List of Subsidiaries of Digital Realty Trust, L.P.

   Consent of Independent Registered Public Accounting Firm.

189

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table of Contents

Index to Financial Statements

31.1

   Rule 13a-14(a)/15d-14(a) Certifications of Chief Executive Officer for Digital Realty Trust, Inc.

31.2

   Rule 13a-14(a)/15d-14(a) Certifications of Chief Financial Officer for Digital Realty Trust, Inc.

31.3

31.4

32.1

32.2

32.3

   Rule 13a-14(a)/15d-14(a) Certifications of Chief Executive Officer for Digital Realty Trust, L.P.

   Rule 13a-14(a)/15d-14(a) Certifications of Chief Financial Officer for Digital Realty Trust, L.P.

   18 U.S.C. § 1350 Certifications of Chief Executive Officer for Digital Realty Trust, Inc.

   18 U.S.C. § 1350 Certifications of Chief Financial Officer for Digital Realty Trust, Inc.

   18 U.S.C. § 1350 Certifications of Chief Executive Officer for Digital Realty Trust, L.P.

32.4

   18 U.S.C. § 1350 Certifications of Chief Financial Officer for Digital Realty Trust, L.P.

101

†

*

The following financial statements from Digital Realty Trust, Inc.’s and Digital Realty Trust, L.P.’s Form 10-K for the year ended
December 31, 2017, formatted in XBRL interactive data files: (i) Consolidated Balance Sheets as of December 31, 2017 and December 31,
2016; (ii) Consolidated Income Statements for each of the years in the three-year period ended December 31, 2017; (iii) Consolidated
Statements of Equity and Comprehensive Income/Statements of Capital and Comprehensive Income for each of the years in the three-year
period ended December 31, 2017; (iv) Consolidated Statements of Cash Flows for each of the years in the three-year period ended
December 31, 2017; and (v) Notes to Consolidated Financial Statements.

Management contract or compensatory plan or arrangement.

Portions of this exhibit have been omitted pursuant to a grant of confidential treatment and have been filed separately with the Securities and Exchange
Commission.

190

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
Table of Contents

Index to Financial Statements

ITEM 16.      FORM 10-K SUMMARY

None.

191

Table of Contents

Index to Financial Statements

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its

behalf by the undersigned, thereunto duly authorized.

SIGNATURES

D IGITAL  R EALTY  T RUST , I NC .

By:

/s/    A. WILLIAM STEIN      

A. William Stein
Chief Executive Officer

Date: February 28, 2018

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints A. William Stein, Andrew P.

Power and Joshua A. Mills, and each of them, with full power to act without the other, such person’s true and lawful attorneys-in-fact and agents, with full power
of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign this Form 10-K and any and all
amendments thereto, and to file the same, with exhibits and schedules thereto, and other documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing necessary
or desirable to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents, or any of them, or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant

and in the capacities and on the dates indicated.

Signature

Title

Date

/ S /    L AURENCE  A. C HAPMAN

Chairman of the Board

February 28, 2018

Laurence A. Chapman

/ S /    A. W ILLIAM  S TEIN

A. William Stein

/S/     A NDREW P . P OWER

Andrew P. Power

/ S /    E DWARD  F. S HAM

Edward F. Sham

Chief Executive Officer and Director
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial Officer)

Chief Accounting Officer
(Principal Accounting Officer)

/ S /   M ICHAEL  A. C OKE

Director

Michael A. Coke

192

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

 
                        
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
   
 
 
 
   
  
 
 
 
   
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
   
 
 
 
   
Table of Contents

Index to Financial Statements

Signature
/ S /    K EVIN  J. K ENNEDY

Kevin J. Kennedy

Director

Title

/ S /    W ILLIAM  G. L A P ERCH

Director

William G. LaPerch

/s/    A FSHIN  M OHEBBI

Director

Afshin Mohebbi

/s/    M ARK R. P ATTERSON

Director

Mark R. Patterson

/s/    M ARY H OGAN  P REUSSE

Director

Mary Hogan Preusse

/s/    J OHN  T. R OBERTS , JR .

Director

John T. Roberts, Jr.

/s/    D ENNIS  E. S INGLETON

Director

Dennis E. Singleton

/ S /    R OBERT  H. Z ERBST

Director

Robert H. Zerbst

193

Date
February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

 
 
 
   
  
 
  
 
 
 
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
   
 
 
 
   
  
 
 
 
   
 
 
 
   
 
 
 
 
   
 
 
 
   
 
 
 
 
   
 
 
 
   
  
 
 
 
   
Table of Contents

Index to Financial Statements

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its

behalf by the undersigned, thereunto duly authorized.

SIGNATURES

D IGITAL  R EALTY  T RUST , L.P.

By:

By:

Digital Realty Trust, Inc.,
Its General Partner

/s/    A. WILLIAM STEIN      

A. William Stein
Chief Executive Officer

Date: February 28, 2018

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints A. William Stein, Andrew P.

Power and Joshua A. Mills, and each of them, with full power to act without the other, such person’s true and lawful attorneys-in-fact and agents, with full power
of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign this Form 10-K and any and all
amendments thereto, and to file the same, with exhibits and schedules thereto, and other documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing necessary
or desirable to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all
that said attorneys-in-fact and agents, or any of them, or their or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant

and in the capacities and on the dates indicated.

Signature

Title

Date

/S/     L AURENCE A . C HAPMAN     

Chairman of the Board

February 28, 2018

Laurence A. Chapman

/ S /    A. W ILLIAM  S TEIN

A. William Stein

/S/     A NDREW P . P OWER

Andrew P. Power

/S/     E DWARD F . S HAM

Edward F. Sham

Chief Executive Officer and Director
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial Officer)

Chief Accounting Officer
(Principal Accounting Officer)

194

February 28, 2018

February 28, 2018

February 28, 2018

 
 
 
 
 
 
 
 
 
 
 
 
 
   
  
 
 
 
 
  
 
 
 
   
 
 
 
   
  
 
 
 
   
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
Table of Contents

Index to Financial Statements

Signature
/ S /   M ICHAEL  A. C OKE

Michael A. Coke

Director

Title

/ S /    K EVIN  J. K ENNEDY

Director

Kevin J. Kennedy

/ S /    W ILLIAM  G. L A P ERCH

Director

William G. LaPerch

/s/    A FSHIN  M OHEBBI

Director

Afshin Mohebbi

/s/    M ARK R. P ATTERSON

Director

Mark R. Patterson

/s/    M ARY H OGAN  P REUSSE

Director

Mary Hogan Preusse

/s/    J OHN  T. R OBERTS , JR .

Director

John T. Roberts, Jr.

/s/    D ENNIS  E. S INGLETON

Director

Dennis E. Singleton

/ S /    R OBERT  H. Z ERBST        

Director

Robert H. Zerbst

195

Date
February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

February 28, 2018

  
 
  
 
 
 
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
 
 
 
   
  
 
 
 
   
 
 
 
   
  
 
 
 
   
 
 
 
   
 
 
 
 
   
 
 
 
   
 
 
 
 
   
 
 
 
   
  
 
 
 
   
EXECUTIVE TIME-BASED PROFITS INTEREST UNIT AGREEMENT (US)

This Profits Interest Unit Agreement (this “ Agreement
”), dated as of ______(the “ Grant
Date
”), is made by and between Digital

Realty Trust, L.P., a Maryland limited partnership (the “ Partnership
”) and _________ (the “ Participant
”).

WHEREAS , Digital Realty Trust, Inc., a Maryland corporation (the “ Company
”) and the Partnership maintain the Digital Realty

Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2014 Incentive Award Plan (as amended from time to time, the “ Plan
”);

WHEREAS , the Company and the Partnership wish to carry out the Plan (the terms of which are hereby incorporated by reference

and made a part of this Agreement);

WHEREAS , Section 9.7 of the Plan provides for the issuance of Profits Interest Units to Eligible Individuals for the performance of

services to or for the benefit of the Partnership in the Eligible Individual’s capacity as a partner of the Partnership; and

WHEREAS , the Committee, appointed to administer the Plan, has determined that it would be to the advantage and in the best
interest of the Company and its stockholders to issue the Award (as defined below) to the Participant as an inducement to enter into or remain
in the service of the Company, the Partnership, the Services Company or any Subsidiary, and as an additional incentive during such service,
and has advised the Company thereof.

NOW, THEREFORE , in consideration of the mutual covenants herein contained and for other good and valuable consideration, the

receipt of which is hereby acknowledged, the parties hereto do hereby agree as follows:

1. 

Issuance of Award . Pursuant to the Plan, in consideration of the Participant’s agreement to provide services to or for the

benefit of the Partnership, the Partnership hereby (a) issues to the Participant an award of _______ Profits Interest Units (the “ Award
”) and
(b) if not already a Partner, admits the Participant as a Partner of the Partnership on the terms and conditions set forth herein, in the Plan and
in the Amended and Restated Agreement of Limited Partnership of the Partnership (as amended from time to time, the “ Partnership
Agreement
”). The Partnership and the Participant acknowledge and agree that the Profits Interest Units are hereby issued to the Participant
for the performance of services to or for the benefit of the Partnership in his or her capacity as a Partner or in anticipation of the Participant
becoming a Partner. Upon receipt of the Award, the Participant shall, automatically and without further action on his or her part, be deemed
to be a party to, signatory of and bound by the Partnership Agreement. At the request of the Partnership, the Participant shall execute the
Partnership Agreement or a joinder or counterpart signature page thereto. The Participant acknowledges that the Partnership may from time to
time issue or cancel (or otherwise modify) Profits Interest Units in accordance with the terms of the Partnership Agreement. The Award shall
have the rights, voting powers, restrictions, limitations as to distributions, qualifications and terms and conditions of redemption and
conversion set forth herein and in the Plan and the Partnership Agreement.

2. 

Definitions . For purposes of this Agreement, the following terms shall have the meanings set forth below. All capitalized
terms used but not otherwise defined herein shall have the meanings ascribed to such terms in the Plan and/or the Partnership Agreement, as
applicable.

(a) 

“ Cause
” means “Cause” as defined in the Participant’s employment agreement (or employment offer letter, as

applicable) with the Company, the Partnership or any Subsidiary as in effect as of the Grant Date if such agreement exists and contains a
definition of Cause, or, if no such employment agreement (or

1

employment offer letter, as applicable) exists or such employment agreement (or employment offer letter, as applicable) does not contain a
definition of Cause, then “Cause” means (i) the Participant’s willful and continued failure to substantially perform his or her duties with the
Company or its subsidiaries or affiliates (other than any such failure resulting from the Participant’s incapacity due to physical or mental
illness), after a written demand for substantial performance is delivered to the Participant, which demand specifically identifies the manner in
which the Company believes that the Participant has not substantially performed his or her duties; (ii) the Participant’s willful commission of
an act of fraud or dishonesty resulting in economic or financial injury to the Company or its subsidiaries or affiliates; (iii) the Participant’s
conviction of, or entry by the Participant of a guilty or no contest plea to, the commission of a felony or a crime involving moral turpitude;
(iv) a willful breach by the Participant of any fiduciary duty owed to the Company which results in economic or other injury to the Company
or its subsidiaries or affiliates; (v) the Participant’s willful and gross misconduct in the performance of his or her duties that results in
economic or other injury to the Company or its subsidiaries or affiliates; or (vi) a material breach by the Participant of any of his or her
obligations under any agreement with the Company or its subsidiaries or affiliates after written notice is delivered to the Participant which
specifically identifies such breach. For purposes of this provision, no act or failure to act on the Participant’s part will be considered “willful”
unless it is done, or omitted to be done, by the Participant in bad faith or without reasonable belief that his or her action or omission was in
the best interests of the Company.

(b) 

“ Disability
” means a disability that qualifies or, had the Participant been a participant, would qualify the

Participant to receive long-term disability payments under the Company’s group long-term disability insurance plan or program, as it may be
amended from time to time.

(c) 

“ Good
Reason
” means “Good Reason” as defined in the Participant’s employment agreement (or employment

offer letter, as applicable) with the Company, the Partnership or any Subsidiary as in effect as of the Grant Date if such agreement exists and
contains a definition of Good Reason, or, if no such employment agreement (or employment offer letter, as applicable) exists or such
employment agreement (or employment offer letter, as applicable) does not contain a definition of Good Reason, then “Good Reason” means,
without the Participant’s prior written consent, the relocation of the Company’s offices at which the Participant is principally employed (the “
Principal
Location
”) to a location more than forty-five (45) miles from such location, or the Company’s requiring the Participant to be based
at a location more than forty-five (45) miles from the Principal Location, except for required travel on Company business. Notwithstanding
the foregoing, the Participant will not be deemed to have resigned for Good Reason unless (x) the Participant provides the Company with
notice of the circumstances constituting Good Reason within sixty (60) days after the initial occurrence or existence of such circumstances,
(y) the Company fails to correct the circumstance so identified within 30 days after the receipt of such notice (if capable of correction), and
(z) the date of termination of the Participant’s employment occurs no later than one hundred eighty (180) days after the initial occurrence of
the event constituting Good Reason.

(d) 

“ Qualifying
Termination
” means a Termination of Service by reason of (i) the Participant’s death, (ii) a

termination by the Company, the Partnership or any Subsidiary due to the Participant’s Disability, (iii) a termination by the Company, the
Partnership or any Subsidiary other than for Cause, or (iv) a termination by the Participant for Good Reason.

(e) 

(f) 

“ Restrictions
” means the exposure to forfeiture set forth in Section 5.

“ Service
Provider
” means an Employee, Consultant or member of the Board, as applicable.

2

3. 

Profits Interest Units Subject to the Plan and Partnership Agreement . The Award is subject to the terms of the Plan and the

terms of the Partnership Agreement, including, without limitation, the restrictions on transfer of Units (including, without limitation, Profits
Interest Units) set forth in Article 11 of the Partnership Agreement. Any permitted transferee of the Award shall take such Award subject to
the terms of the Plan, this Agreement, and the Partnership Agreement. Any such permitted transferee must, upon the request of the
Partnership, agree to be bound by the Plan, the Partnership Agreement, and this Agreement, and shall execute the same on request, and must
agree to such other waivers, limitations, and restrictions as the Partnership or the Company may reasonably require. Any Transfer of the
Award which is not made in compliance with the Plan, the Partnership Agreement and this Agreement shall be null and void and of no effect.

4. 

Vesting .

(a)      Time Vesting . Subject to Sections 4(b), 4(c) and 5 below, the Restrictions set forth in Section 5 below will lapse and

the Profits Interest Units will vest and become nonforfeitable in accordance with and subject to the time vesting schedule set forth on Exhibit
A attached hereto, subject to the Participant’s continued status as a Service Provider through each applicable vesting date.

(b)      Qualifying Termination Due to Death or Disability . In the event that the Participant incurs a Qualifying Termination

due to the Participant’s death or Disability, the Profits Interest Units will vest in full and become nonforfeitable upon such Qualifying
Termination.

(c)      Qualifying Termination without Cause Not in Connection with a Change in Control . In the event that the Participant

incurs a Qualifying Termination due to a termination by the Company, the Partnership or any Subsidiary other than for Cause or by the
Participant for Good Reason, in either case, prior to a Change in Control or more than twelve (12) months following a Change in Control,
subject to and conditioned upon the Participant’s execution of a general release of claims in a form prescribed by the Company (the “ Release
”) within twenty-one (21) days (or forty-five (45) days if necessary to comply with Applicable Law) after the date of such Qualifying
Termination and, if the Participant is entitled to a seven (7) day post-signing revocation period under Applicable Law, the Participant’s non-
revocation of such Release during such seven (7) day period, the Award will vest and become nonforfeitable on the fifty-fifth (55 th ) day
following the date of such Qualifying Termination with respect to that number of Profits Interest Units subject to the Award which would
have become vested and nonforfeitable during the twelve (12) month period immediately following the date of such Qualifying Termination
had the Participant remained continuously employed by the Company, the Partnership or any Subsidiary during such period (and will,
following the Participant’s Qualifying Termination, remain outstanding and eligible to vest on such date if the Release has become effective
and irrevocable).

(d)      Qualifying Termination without Cause in Connection with a Change in Control . In the event that a Change in Control

occurs and the Participant incurs a Qualifying Termination due to a termination by the Company, the Partnership or any Subsidiary other than
for Cause upon or within twelve (12) months following such Change in Control, subject to and conditioned upon the Participant’s execution
of the Release within twenty-one (21) days (or forty-five (45) days if necessary to comply with Applicable Law) after the date of such
Qualifying Termination and, if the Participant is entitled to a seven (7) day post-signing revocation period under Applicable Law, the
Participant’s non-revocation of such Release during such seven (7) day period, the Profits Interest Units will vest in full and become
nonforfeitable on the fifty-fifth (55 th ) day following the date of such Qualifying Termination (and will, following the Participant’s
Qualifying Termination, remain outstanding and eligible to vest on such date if the Release has become effective and irrevocable).

5. 

Effect of Termination of Service . In the event of the Participant’s Termination of Service for any reason other than as

described in Section 4(b) or (c) above, any and all Profits Interest Units that have not vested

3

as of the date of such Termination of Service (after taking into account any accelerated vesting that occurs in connection with such
termination) will thereupon automatically and without further action be cancelled and forfeited without payment of any consideration
therefor, and the Participant shall have no further right or interest in or with respect to such Profits Interest Units. In the event of the
Participant’s Termination of Service as described in Section 4(b) or (c) above, any and all Profits Interest Units that have not vested on or
prior to the fifty-fifth (55th) day following the date of such Termination of Service (after taking into account any accelerated vesting that
occurs in connection with such termination) will thereupon automatically and without further action be cancelled and forfeited without
payment of any consideration therefor, and the Participant shall have no further right or interest in or with respect to such Profits Interest
Units. Except as expressly provided in Section 4(b) or (c) above, in any applicable plan, program or policy of the Company, the Partnership
or any Subsidiary or in any employment agreement, employment offer letter or other agreement between the Participant and the Company,
the Partnership or any Subsidiary, no Profits Interest Units which have not vested as of the date of the Participant’s Termination of Service
shall thereafter become vested.

6. 

Execution and Return of Documents and Certificates . At the Company’s or the Partnership’s request, the Participant

hereby agrees to promptly execute, deliver and return to the Partnership any and all documents or certificates that the Company or the
Partnership deems necessary or desirable to effectuate the cancellation and forfeiture of the unvested Profits Interest Units and the portion of
the Award attributable to the unvested Profits Interest Units, or to effectuate the transfer or surrender of such unvested Profits Interest Units
and portion of the Award to the Partnership.

7. 

Covenants, Representations and Warranties . The Participant hereby represents, warrants, covenants, acknowledges and

agrees on behalf of the Participant and his or her spouse, if applicable, that:

(a) 

Investment . The Participant is holding the Award for the Participant’s own account, and not for the account of

any other Person. The Participant is holding the Award for investment and not with a view to distribution or resale thereof except in
compliance with applicable laws regulating securities.

(b) 

Relation to Partnership . The Participant is presently an employee of, or consultant to, the Partnership, or is

otherwise providing services to or for the benefit of the Partnership, and in such capacity has become personally familiar with the business of
the Partnership.

(c) 

Access to Information . The Participant has had the opportunity to ask questions of, and to receive answers from,

the Partnership with respect to the terms and conditions of the transactions contemplated hereby and with respect to the business, affairs,
financial conditions, and results of operations of the Partnership.

(d) 

Registration . The Participant understands that the Profits Interest Units have not been registered under the

Securities Act of 1933, as amended (the “ Securities
Act
”), and the Profits Interest Units cannot be transferred by the Participant unless such
transfer is registered under the Securities Act or an exemption from such registration is available. The Partnership has made no agreements,
covenants or undertakings whatsoever to register the transfer of the Profits Interest Units under the Securities Act. The Partnership has made
no representations, warranties, or covenants whatsoever as to whether any exemption from the Securities Act, including, without limitation,
any exemption for limited sales in routine brokers’ transactions pursuant to Rule 144 of the Securities Act, will be available. If an exemption
under Rule 144 is available at all, it will not be available until at least six (6) months from issuance of the Award and then not unless the
terms and conditions of Rule 144 have been satisfied.

representations, covenants or agreements as to whether there will be a public market for any of its securities.

(e) 

Public Trading . None of the Partnership’s securities is presently publicly traded, and the Partnership has made no

4

(f) 

Tax Advice . The Partnership has made no warranties or representations to the Participant with respect to the

income tax consequences of the transactions contemplated by this Agreement (including, without limitation, with respect to the decision of
whether to make an election under Section 83(b) of the Code), and the Participant is in no manner relying on the Partnership or its
representatives for an assessment of such tax consequences. The Participant is advised to consult with his or her own tax advisor with respect
to such tax consequences and his or her ownership of the Profits Interest Units.

8. 

Capital Account . The Participant shall make no contribution of capital to the Partnership in connection with the Award

and, as a result, the Participant’s Capital Account balance in the Partnership immediately after its receipt of the Profits Interest Units shall be
equal to zero, unless the Participant was a Partner in the Partnership prior to such issuance, in which case the Participant’s Capital Account
balance shall not be increased as a result of its receipt of the Profits Interest Units.

9. 

Redemption Rights . Notwithstanding the contrary terms in the Partnership Agreement, Partnership Units which are

acquired upon the conversion of the Profits Interest Units shall not, without the consent of the Partnership (which may be given or withheld in
its sole discretion), be redeemed pursuant to Section 8.6 of the Partnership Agreement within two (2) years of the date of the issuance of such
Profits Interest Units.

10. 

Section 83(b) Election . The Participant covenants that the Participant shall make a timely election under Section 83(b) of

the Code (and any comparable election in the state of the Participant’s residence) with respect to the Profits Interest Units covered by the
Award, and the Partnership hereby consents to the making of such election(s). In connection with such election, the Participant and the
Participant’s spouse, if applicable, shall promptly provide a copy of such election to the Partnership. Instructions for completing an election
under Section 83(b) of the Code and a form of election under Section 83(b) of the Code are attached hereto as Exhibit B . The Participant
represents that the Participant has consulted any tax consultant(s) that the Participant deems advisable in connection with the filing of an
election under Section 83(b) of the Code and similar state tax provisions. The Participant acknowledges that it is the Participant’s sole
responsibility and not the Company’s to timely file an election under Section 83(b) of the Code (and any comparable state election), even if
the Participant requests that the Company or any representative of the Company make such filing on the Participant’s behalf. The Participant
should consult his or her tax advisor to determine if there is a comparable election to file in the state of his or her residence.

11. 

Ownership Information . The Participant hereby covenants that so long as the Participant holds any Profits Interest Units,

at the request of the Partnership, the Participant shall disclose to the Partnership in writing such information relating to the Participant’s
ownership of the Profits Interest Units as the Partnership reasonably believes to be necessary or desirable to ascertain in order to comply with
the Code or the requirements of any other appropriate taxing authority.

12. 

Taxes . The Partnership and the Participant intend that (i) the Profits Interest Units be treated as a “profits interest” as

defined in Internal Revenue Service Revenue Procedure 93-27, as clarified by Revenue Procedure 2001-43, (ii) the issuance of such units not
be a taxable event to the Partnership or the Participant as provided in such revenue procedure, and (iii) the Partnership Agreement, the Plan
and this Agreement be interpreted consistently with such intent. In furtherance of such intent, effective immediately prior to the issuance of
the Profits Interest Units, the Partnership will cause the “Gross Asset Value” (as defined in the Partnership Agreement) of all Partnership
assets to be adjusted to equal their respective gross fair market values, and make the resulting adjustments to the “Capital Accounts” (as
defined in the Partnership Agreement) of the partners, in each case as set forth in the Partnership Agreement and based upon a “Fair Market
Value” (as defined in the Partnership Agreement) at the time of such adjustment, based on the trading price on the New York Stock

5

Exchange of the common stock of the Company. The Partnership may withhold from the Participant’s wages, or require the Participant to pay
to the Partnership, any applicable withholding or employment taxes resulting from the issuance of the Award hereunder, from the vesting or
lapse of any restrictions imposed on the Award, or from the ownership or disposition of the Profits Interest Units.

13. 

Remedies . The Participant shall be liable to the Partnership for all costs and damages, including incidental and

consequential damages, resulting from a disposition of the Award which is in violation of the provisions of this Agreement. Without limiting
the generality of the foregoing, the Participant agrees that the Partnership shall be entitled to obtain specific performance of the obligations of
the Participant under this Agreement and immediate injunctive relief in the event any action or proceeding is brought in equity to enforce the
same. The Participant will not urge as a defense that there is an adequate remedy at law.

14. 

Restrictive Legends . Certificates evidencing the Award, to the extent such certificates are issued, may bear such

restrictive legends as the Partnership and/or the Partnership’s counsel may deem necessary or advisable under applicable law or pursuant to
this Agreement, including, without limitation, the following legends or any legends similar thereto:

“The offering and sale of the securities represented hereby have not been registered under the Securities Act of 1933, as
amended (the “Securities Act”). Any transfer of such securities will be invalid unless a Registration Statement under the
Securities Act is in effect as to such transfer or in the opinion of counsel for the Partnership such registration is unnecessary
in order for such transfer to comply with the Securities Act.”

“The securities represented hereby are subject to forfeiture, transferability and other restrictions as set forth in (i) a written
agreement with the Partnership, (ii) the Digital Realty Trust, Inc., Digital Services, Inc. and Digital Realty Trust, L.P. 2014
Incentive Award Plan and (iii) the Amended and Restated Agreement of Limited Partnership of Digital Realty Trust, L.P., in
each case, as has been and as may in the future be amended (or amended and restated) from time to time, and such securities
may not be sold or otherwise transferred except pursuant to the provisions of such documents.”

15. 

Restrictions on Public Sale by the Participant . To the extent not inconsistent with applicable law, the Participant agrees
not to effect any sale or distribution of the Profits Interest Units or any similar security of the Company or the Partnership, or any securities
convertible into or exchangeable or exercisable for such securities, including a sale pursuant to Rule 144 under the Securities Act, during the
14 days prior to, and during the up to 90-day period beginning on, the date of the pricing of any public or private debt or equity securities
offering by the Company or the Partnership (except as part of such offering), if and to the extent requested in writing by the Partnership or the
Company in the case of a non-underwritten public or private offering or if and to the extent requested in writing by the managing underwriter
or underwriters (or initial purchaser or initial purchasers, as the case may be) and consented to by the Partnership or the Company, which
consent may be given or withheld in the Partnership’s or the Company’s sole and absolute discretion, in the case of an underwritten public or
private offering (such agreement to be in the form of lock-up agreement provided by the Company, the Partnership, managing underwriter or
underwriters, as the case may be).

16. 

Conformity to Securities Laws . The Participant acknowledges that the Plan and this Agreement are intended to conform

to the extent necessary with all provisions of all applicable federal and state laws, rules and regulations (including, but not limited to the
Securities Act and the Exchange Act and any and all regulations and rules promulgated by the Securities and Exchange Commission
thereunder, including without limitation the applicable exemptive conditions of Rule 16b-3 of the Exchange Act) and to such approvals by
any listing,

6

regulatory or other governmental authority as may, in the opinion of counsel for the Partnership or the Company, be necessary or advisable in
connection therewith. Notwithstanding anything herein to the contrary, the Plan shall be administered, and the Award of Profits Interest Units
is made, only in such a manner as to conform to such laws, rules and regulations. To the extent permitted by applicable law, the Plan, this
Agreement and the Award shall be deemed amended to the extent necessary to conform to such laws, rules and regulations.

17. 

Code Section 409A . To the extent applicable, this Agreement shall be interpreted in accordance with Section 409A of the

Code and Department of Treasury regulations and other interpretive guidance issued thereunder, including without limitation any such
regulations or other guidance that may be issued after the effective date of this Agreement. Notwithstanding any provision of this Agreement
to the contrary, in the event that following the effective date of this Agreement, the Partnership determines that the Award may be subject to
Section 409A of the Code and related Department of Treasury guidance (including such Department of Treasury guidance as may be issued
after the effective date of this Agreement ), the Partnership may adopt such amendments to this Agreement or adopt other policies and
procedures (including amendments, policies and procedures with retroactive effect ), or take any other actions, that the Partnership
determines are necessary or appropriate to (a) exempt the Award from Section 409A of the Code and/or preserve the intended tax treatment
of the benefits provided with respect to the Award, or (b) comply with the requirements of Section 409A of the Code and related Department
of Treasury guidance; provided, however , that this Section 17 shall not create any obligation on the part of the Partnership or any Subsidiary
to adopt any such amendment, policy or procedure or take any such other action.

18. 

No Right to Continued Service . Nothing in this Agreement shall confer upon the Participant any right to continue as a

Service Provider of the Company, the Partnership or any Subsidiary, or shall interfere with or restrict in any way the rights of the Company,
the Partnership or any Subsidiary, which rights are hereby expressly reserved, to discharge the Participant at any time for any reason
whatsoever, with or without cause.

19. 

Miscellaneous .

(a)      Incorporation of the Plan . This Agreement is made under and subject to and governed by all of the terms and

conditions of the Plan. In the event of any discrepancy or inconsistency between this Agreement and the Plan, the terms and conditions of the
Plan shall control. By signing this Agreement, the Participant confirms that he or she has received a copy of the Plan and has had an
opportunity to review the contents thereof.

(b)      Clawback . This Award shall be subject to any clawback or recoupment policy currently in effect or as may be adopted

by the Company or the Partnership, in each case, as may be amended from time to time.

(c)      Successors and Assigns . Subject to the limitations set forth in this Agreement, this Agreement shall be binding upon,
and inure to the benefit of, the executors, administrators, heirs, legal representatives, successors and assigns of the parties hereto, including,
without limitation, any business entity that succeeds to the business of the Partnership.

(d)      Entire Agreement; Amendments and Waivers. This Agreement, together with the Plan and the Partnership Agreement,
constitutes the entire agreement among the parties pertaining to the subject matter hereof and supersedes all prior agreements, understandings,
negotiations  and  discussions,  whether  oral  or  written,  of  the  parties.  Without  limiting  the  generality  of  the  forgoing,  this  Agreement
supersedes  the  provisions  of  any  employment  agreement,  employment  offer  letter  or  other  agreement  between  the  Participant  and  the
Company, the Partnership or any Subsidiary that would otherwise accelerate the vesting of the Award and the Profits Interest Units, and any

7

provision in such agreement or letter which would otherwise accelerate such vesting shall have no force or effect with respect to the Award or
the Profits Interest Units. In the event that the provisions of such other agreement or letter conflict or are inconsistent with the provisions of
this Agreement, the provisions of this Agreement shall control. Except as set forth in Section 17 above, this Agreement may not be amended
except in an instrument in writing signed on behalf of each of the parties hereto and approved by the Committee. No amendment, supplement,
modification or waiver of this Agreement shall be binding unless executed in writing by the party to be bound thereby. No waiver of any of
the provisions of this Agreement shall be deemed or shall constitute a waiver of any other provision hereof (whether or not similar), nor shall
such waiver constitute a continuing waiver unless otherwise expressly provided.

(e)           Survival  of  Representations  and  Warranties  .  The  representations,  warranties  and  covenants  contained  in  Section  7

hereof shall survive the later of the date of execution and delivery of this Agreement or the issuance of the Award.

(f)      Severability . If for any reason one or more of the provisions contained in this Agreement or in any other instrument

referred to herein, shall, for any reason, be held to be invalid, illegal or unenforceable in any respect, then to the maximum extent permitted
by law, such invalidity, illegality or unenforceability shall not affect any other provision of this Agreement or any other such instrument.

(g)      Titles . The titles, captions or headings of the Sections herein are inserted for convenience of reference only and are not

intended to be a part of or to affect the meaning or interpretation of this Agreement.

(h)      Counterparts . This Agreement may be executed in any number of counterparts, any of which may be executed and
transmitted by facsimile, and each of which shall be deemed to be an original, but all of which together shall be deemed to be one and the
same instrument.

(i)           Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of
California applicable to contracts entered into and wholly to be performed within the State of California by California residents, without
regard to any otherwise governing principles of conflicts of law that would choose the law of any state other than the State of California.

(j) 

Notices . Any notice to be given by the Participant under the terms of this Agreement shall be addressed to the

General Counsel of the Partnership at the Partnership’s address set forth in Exhibit A attached hereto. Any notice to be given to the
Participant shall be addressed to him or her at the Participant’s then current address on the books and records of the Partnership. By a notice
given pursuant to this Section 19(j), either party may hereafter designate a different address for notices to be given to such party. Any notice
which is required to be given to the Participant shall, if the Participant is then deceased, be given to the Participant’s personal representative if
such representative has previously informed the Partnership of his or her status and address by written notice under this Section 19(j) (and the
Partnership shall be entitled to rely on any such notice provided to it that it in good faith believes to be true and correct, with no duty of
inquiry). Any notice required or permitted hereunder shall be given in writing and shall be deemed effectively given upon personal delivery
or upon deposit in the United States mail by certified mail, with postage and fees prepaid, addressed as set forth above or upon confirmation
of delivery by a nationally recognized overnight delivery service.

Spousal Consent . As a condition to the Partnership’s, the Company’s and their Subsidiaries’ obligations under
this Agreement, the spouse of the Participant, if any, shall execute and deliver to the Partnership the Consent of Spouse attached hereto as
Exhibit C.

(k) 

8

(l) 

Fractional Units . For purposes of this Agreement, any fractional Profits Interest Units that vest or become entitled

to distributions pursuant to the Partnership Agreement will be rounded to the nearest whole Profits Interest Unit, as determined by the
Partnership; provided, however , that in no event shall such rounding cause the aggregate number of Profits Interest Units that vest or become
entitled to such distributions to exceed the total number of Profits Interest Units set forth in Section 1 of this Agreement.

IN WITNESS WHEREOF , the parties have executed this Agreement as of the day and year first above written.

DIGITAL REALTY TRUST, L.P.,
a Maryland limited partnership
By: Digital Realty Trust, Inc., a Maryland corporation
Its: General Partner

By:                 
Name:                 
Title:                 

The Participant hereby accepts and agrees to be bound by all of the terms and
conditions of this Agreement.

_________________________

Doc Control No:

9

Exhibit A

Vesting Schedule and Notice Address

Vesting Schedule

Partnership Address

4 Embarcadero Center
Suite 3200
San Francisco, California 94111

Exhibit B

FORM OF SECTION 83(b) ELECTION AND INSTRUCTIONS

These instructions are provided to assist you if you choose to make an election under Section 83(b) of the Internal Revenue Code, as
amended, with respect to the Profits Interest Units of Digital Realty Trust, L.P. transferred to you. Please consult with your personal tax
advisor as to whether an election of this nature will be in your best interests in light of your personal tax situation.

The executed original of the Section 83(b) election must be filed with the Internal Revenue Service not later than 30 days after the
grant date. PLEASE NOTE: There is no remedy for failure to file on time. Follow the steps outlined below to ensure that the election is
mailed  and  filed  correctly  and  in  a  timely  manner.  ALSO,  PLEASE  NOTE:  If  you  make  the  Section  83(b)  election,  the  election  is
irrevocable.

Complete all of the Section 83(b) election steps below:

1.

2.

3.

4.

5.

Complete the Section 83(b) election form (sample form next page) and make three (3) copies of the signed election form.
(Your spouse, if any, should also sign the Section 83(b) election form.)

Prepare a cover letter to the Internal Revenue Service (sample letter included, following election form).

Send the cover letter with the originally executed Section 83(b) election form and one (1) copy via certified mail, return
receipt  requested  to  the  Internal  Revenue  Service  at  the  address  of  the  Internal  Revenue  Service  where  you  file  your
personal tax returns.

•

It is advisable that you have the package date-stamped at the post office. The post office will provide you with a white
certified receipt that includes a dated postmark. Enclose a self-addressed, stamped envelope so that the Internal Revenue
Service may return a date-stamped copy to you. However, your postmarked receipt is your proof of having timely filed
the Section 83(b) election if you do not receive confirmation from the Internal Revenue Service.

One (1) copy must be sent to Digital Realty Trust, L.P.’s legal department for its records.

Retain the Internal Revenue Service file stamped copy (when returned) for your records.

Please consult your personal tax advisor for the address of the office of the Internal Revenue Service to which you should mail your election
form.

11

US-DOCS\75463384.1

 
ELECTION PURSUANT TO SECTION 83(B) OF THE INTERNAL REVENUE CODE

The undersigned hereby elects pursuant to Section 83(b) of the Internal Revenue Code of 1986, as amended, to include in the undersigned’s gross income
for  the  taxable  year  in  which  the  property  was  transferred  the  excess  (if  any)  of  the  fair  market  value  of  the  property  described  below,  over  the  amount  the
undersigned paid for such property, if any, and supplies herewith the following information in accordance with the Treasury regulations promulgated under Section
83(b):

1.      The name, address and taxpayer identification (social security) number of the undersigned, and the taxable year for which this election is being

made, are:

NAME:

SSN:

ADDRESS:

[Name of Taxpayer]

 ____________________
[ Taxpayer SSN ]
____________________

____________________

NAME

SSN:

ADDRESS:

___________________
 [Name of Spouse or N/A]

 ____________________
[Spouse SSN ]
____________________

____________________

TAXABLE YEAR: The taxable year with respect to which this election is made is the calendar year in which the property was transferred.

2.    The property with respect to which the election is made consists of               Profits Interest Units (the “ Units
”) of Digital Realty Trust, L.P. (the “

Company
”), representing an interest in the future profits, losses and distributions of the Company.

3.    The date on which the above property was transferred to the undersigned was              .

4.        The  above  property  is  subject  to  the  following  restrictions:  The  Units  are  subject  to  cancellation  and  forfeiture  to  the  extent  unvested  upon  a
termination  of  service  with  the  Company  under  certain  circumstances.  These  restrictions  lapse  upon  the  satisfaction  of  certain  conditions  as  set  forth  in  an
agreement between the taxpayer and the Company. In addition, the Units are subject to certain transfer restrictions pursuant to such agreement and the Amended
and Restated Agreement of Limited Partnership of Digital Realty Trust, L.P., as amended (or amended and restated) from time to time, should the taxpayer wish to
transfer the Units.

5.    The fair market value of the above property at the time of transfer (determined without regard to any restrictions other than those which by their terms

will never lapse) was $0.

6.    The amount paid for the above property by the undersigned was $0.

7.     The undersigned taxpayer will file this election with the Internal Revenue Service office with which taxpayer files his or her annual income tax
return not later than 30 days after the date of transfer of the property. A copy of this election will be furnished to the person for whom the services were performed.
The undersigned is the person performing the services in connection with which the property was transferred .

Date: _________________

____________________________________

The undersigned spouse of the taxpayer joins in this election. (Complete if applicable.)

Date: _________________

____________________________________

 
           
 
VIA CERTIFIED MAIL
RETURN RECEIPT REQUESTED

Internal Revenue Service

______________________________________
[Address where taxpayer files returns]

Re : Election under Section 83(b) of the Internal Revenue Code of 1986

Taxpayer: _                        
Taxpayer’s Social Security Number: ___________________________
Taxpayer’s Spouse: _________________________________________
Taxpayer’s Spouse’s Social Security Number: ____________________

Ladies and Gentlemen:

Enclosed  please  find  an  original  and  one  copy  of  an  Election  under  Section  83(b)  of  the  Internal  Revenue  Code  of  1986,  as  amended,
being made by the taxpayer referenced above. Please acknowledge receipt of the enclosed materials by stamping the enclosed copy of the
Election and returning it to me in the self-addressed stamped envelope provided herewith.

Very truly yours,

___________________________________

Enclosures
cc: Digital Realty Trust, L.P.

 
Exhibit C

CONSENT OF SPOUSE

I, ____________________, spouse of [_____], have read and approve the foregoing Profits Interest Unit Agreement (the “ Agreement
”)
and all exhibits thereto, the Partnership Agreement and the Plan (each as defined in the Agreement). In consideration of the granting to my
spouse of the profits interest units of Digital Realty Trust, L.P. (the “ Partnership
”) as set forth in the Agreement, I hereby appoint my
spouse as my attorney-in-fact in respect to the exercise of any rights and taking of all actions under the Agreement and all exhibits thereto
and agree to be bound by the provisions of the Agreement and all exhibits thereto insofar as I may have any rights in said Agreement or
any  exhibits  thereto  or  any  securities  issued  pursuant  thereto  under  the  community  property  laws  or  similar  laws  relating  to  marital
property in effect in the state of our residence as of the date of the signing of the foregoing Agreement and exhibits thereto or otherwise. I
understand  that  this  Consent  of  Spouse  may  not  be  altered,  amended,  modified  or  revoked  other  than  by  a  writing  signed  by  me,  the
Partnership and Digital Realty Trust, Inc.

Grant Date:

By: ________________________________
Print name:__________________________
Dated: ___________________

Control:

If applicable, you must print, complete and return this Consent of Spouse to
hrdirect@digitalrealty.com. Please only print and return this page.

 
Income from continuing operations before noncontrolling
interests

Interest expense

Interest within rental expense (1)

Noncontrolling interests in consolidated joint ventures

Earnings available to cover fixed charges

Fixed charges:

Interest expense

Interest within rental expense (1)

Capitalized interest

Total fixed charges

Preferred stock dividends

Exhibit 12.1

Digital Realty Trust, Inc. and Subsidiaries
Statement of Computation of Ratios
(in thousands, except ratios)

2017

2016

2015

2014

2013

Year Ended December 31,

  $

256,267   $

431,852   $

301,591   $

203,415   $

258,642  

27,490  

(4,238)  

236,480  

27,879  

(367)  

201,435  

191,085  

8,208  

(460)  

5,393  

(465)  

320,449

189,399

7,687

(595)

  $

  $

538,161   $

695,844   $

510,774   $

399,428   $

516,940

258,642   $

236,480   $

201,435   $

191,085   $

189,399

27,490  

21,714  

307,846  

68,802  

27,879  

16,324  

280,683  

83,771  

8,208  

12,851  

222,494  

79,423  

5,393  

20,373  

216,851  

67,465  

7,687

26,277

223,363

42,905

266,268

2.31

1.94

Fixed charges and preferred stock dividends

  $

376,648   $

364,454   $

301,917   $

284,316   $

Ratio of earnings to fixed charges

Ratio of earnings to fixed charges and preferred stock
dividends

1.75  

1.43  

2.48  

1.91  

2.30  

1.69  

1.84  

1.40  

(1)

Interest within rental expense represents one-third of rental expense (the approximate portion of rental expense representing interest).

 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
 
 
 
 
 
 
Income from continuing operations before noncontrolling
interests

Interest expense

Interest within rental expense (1)

Noncontrolling interests in consolidated joint ventures

Earnings available to cover fixed charges

Fixed charges:

Interest expense

Interest within rental expense (1)

Capitalized interest

Total fixed charges

Preferred unit distributions

Digital Realty Trust, L.P. and Subsidiaries
Statement of Computation of Ratios
(in thousands, except ratios)

2017

2016

2015

2014

2013

Year Ended December 31,

  $

256,267   $

431,852   $

300,226   $

203,415   $

258,642  

27,490  

(4,238)  

236,480  

27,879  

(367)  

202,800  

191,085  

8,208  

(460)  

5,393  

(465)  

320,449

189,399

7,687

(595)

  $

  $

538,161   $

695,844   $

510,774   $

399,428   $

516,940

258,642   $

236,480   $

202,800   $

191,085   $

189,399

27,490  

21,714  

307,846  

68,802  

27,879  

16,324  

280,683  

83,771  

8,208  

12,851  

223,859  

79,423  

5,393  

20,373  

216,851  

67,465  

7,687

26,277

223,363

42,905

266,268

2.31

1.94

Fixed charges and preferred unit distributions

  $

376,648   $

364,454   $

303,282   $

284,316   $

Ratio of earnings to fixed charges

Ratio of earnings to fixed charges and preferred unit
distributions

1.75  

1.43  

2.48  

1.91  

2.28  

1.68  

1.84  

1.40  

(1)

Interest within rental expense represents one-third of rental expense (the approximate portion of rental expense representing interest).

 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
 
 
 
 
 
 
List of Subsidiaries of Digital Realty Trust, Inc.

Exhibit 21.1

Entity Name
1100 Space Park Holding Company LLC
1100 Space Park LLC
150 South First Street, LLC
1500 Space Park Holdings, LLC
1500 Space Park Partners, LLC
1525 Comstock Partners, LLC
1550 Space Park Partners, LLC
200 Paul Holding Company, LLC
200 Paul, LLC
2001 Sixth Holdings LLC
2001 Sixth LLC
2020 Fifth Avenue LLC
2045-2055 LaFayette Street, LLC
2334 Lundy Holding Company LLC
2334 Lundy LLC
34551 Ardenwood Holding Company LLC
34551 Ardenwood LLC
651 Walsh Partners, LLC
Alshain Ventures LLC
Ashburn Corporate Center Owners Association, Inc.
Beaver Ventures LLC
BNY-Somerset NJ, LLC
Collins Technology Park Partners, LLC
Colo Properties Atlanta, LLC
Cosmic Ventures LLC
DBT, LLC
Devin Shafron E and F Land Condominium Owners Association, Inc.
DF Property Manangement LLC
DFT Canada LP LLC
DFT Moose GP LLC
Digital - Bryan Street Partnership, L.P.
Digital 1 Savvis Parkway, LLC
Digital 11085 Sun Center Drive, LLC
Digital 113 N. Myers, LLC
Digital 1201 Comstock, LLC
Digital 125 N. Myers, LLC
Digital 128 First Avenue, LLC
Digital 1350 Duane, LLC
Digital 1500 Space Park Borrower, LLC
Digital 1500 Space Park, LLC
Digital 1550 Space Park, LLC

Jurisdiction of Incorporation
Delaware
Delaware
Delaware
Delaware
Delaware
California
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Virginia
Delaware
Delaware
Delaware
Delaware
Delaware
Maryland
Virginia
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital 1725 Comstock, LLC
Digital 2020 Fifth Avenue Investor, LLC
Digital 210 Tucker, LLC
Digital 21110 Ridgetop, LLC
Digital 2121 South Price, LLC
Digital 21561-21571 Beaumeade Circle, LLC
Digital 2260 East El Segundo, LLC
Digital 3011 Lafayette, LLC
Digital 365 Main, LLC
Digital 3825 NW Aloclek Place, LLC
Digital 45845-45901 Nokes Boulevard, LLC
Digital 55 Middlesex, LLC
Digital 60 & 80 Merritt, LLC
Digital 717 GP, LLC
Digital 717 Leonard, L.P.
Digital 717 LP, LLC
Digital 720 2nd, LLC
Digital 89th Place, LLC
Digital 900 Walnut, LLC
Digital Above, LLC
Digital Akard, LLC
Digital Alfred, LLC
Digital Aquila, LLC
Digital Arizona Research Park II, LLC
Digital Ashburn CS, LLC
Digital Asia, LLC
Digital Australia Finco Pty Ltd
Digital Australia Investment Management Pty Limited
Digital BH 800 Holdco, LLC
Digital BH 800 M, LLC
Digital BH 800, LLC
Digital Bièvres SCI
Digital Cabot, LLC
Digital Chelsea, LLC
Digital Collins Technology Park Investor, LLC
Digital Commerce Boulevard, LLC
Digital Concord Center, LLC
Digital Connect, LLC
Digital Crawley 1 S.à r.l.
Digital Crawley 2 S.à r.l.
Digital Crawley 3 S.à r.l.
Digital Deer Park 2, LLC
Digital Deer Park 3, LLC
Digital Doug Davis, LLC
Digital East Cornell, LLC

Jurisdiction of Incorporation
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Australia
Australia
Delaware
Delaware
Delaware
France
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Luxembourg
Luxembourg
Luxembourg
Delaware
Delaware
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital Erskine Park 2, LLC
Digital Euro Finco GP, LLC
Digital Euro Finco Partner Limited
Digital Euro Finco, L.P.
Digital Euro Finco, LLC
Digital Federal Systems, LLC
Digital Frankfurt GmbH
Digital Garland, LLC
Digital Germany Cheetah GmbH
Digital Germany Holding, LLC
Digital Gough, LLC
Digital Grand Avenue 2, LLC
Digital Grand Avenue 3, LLC
Digital Grand Avenue, LLC
Digital Greenfield B.V.
Digital Greenspoint, L.P.
Digital Greenspoint, LLC
Digital HK JV Holding Limited
Digital Hoofddorp 2 B.V.
Digital Hoofddorp B.V.
Digital Investment Management Pte. Ltd.
Digital Investments Holding, LLC
Digital Japan 1 Pte. Ltd.
Digital Japan 2 Pte. Ltd.
Digital Japan Holding Pte. Ltd.
Digital Japan Investment Management GK
Digital Japan, LLC
Digital Lafayette Chantilly, LLC
Digital Lakeside 2, LLC
Digital Lakeside 3, LLC
Digital Lakeside Holdings, LLC
Digital Lakeside, LLC
Digital Lewisville, LLC
Digital London Limited
Digital Loudoun 3, LLC
Digital Loudoun II, LLC
Digital Loudoun IV, LLC
Digital Loudoun Parkway Center North, LLC
Digital Luxembourg II S.à r.l.
Digital Luxembourg III S.à r.l.
Digital Luxembourg S.à r.l.
Digital Macquarie Park, LLC
Digital MetCenter 4-6, LLC

Jurisdiction of Incorporation
Delaware
Delaware
British Virgin Islands
United Kingdom (Scotland)
Delaware
Delaware
Germany
Delaware
Germany
Delaware
Delaware
Delaware
Delaware
Delaware
Netherlands
Texas
Delaware
British Virgin Islands
Netherlands
Netherlands
Singapore
Delaware
Singapore
Singapore
Singapore
Japan
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
United Kingdom (England & Wales)
Delaware
Delaware
Delaware
Delaware
Luxembourg
Luxembourg
Luxembourg
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital MetCenter 7-9, LLC
Digital Midway GP, LLC
Digital Midway, L.P.
Digital Montigny SCI
Digital Moran Holdings, LLC
Digital MP, LLC
Digital Netherlands 10 B.V.
Digital Netherlands 11 B.V.
Digital Netherlands 12 B.V.
Digital Netherlands I B.V.
Digital Netherlands II B.V.
Digital Netherlands III (Dublin) B.V.
Digital Netherlands IV B.V.
Digital Netherlands IV Holdings B.V.
Digital Netherlands IX B.V.
Digital Netherlands V B.V.
Digital Netherlands VII B.V.
Digital Netherlands VIII B.V.
Digital Network Services, LLC
Digital Northlake, LLC
Digital Norwood Park 2, LLC
Digital Norwood Park, LLC
Digital Osaka 1 TMK
Digital Osaka 2 TMK
Digital Osaka 3 TMK
Digital Paris Holding SARL
Digital Phoenix Van Buren, LLC
Digital Piscataway, LLC
Digital Printers Square, LLC
Digital Realty (Blanchardstown) Limited
Digital Realty (Cressex) S.à r.l.
Digital Realty (Management Company) Limited
Digital Realty (Manchester) S.à r.l.
Digital Realty (Redhill) S.à r.l.
Digital Realty (UK) Limited
Digital Realty (Welwyn) S.à r.l.
Digital Realty Canada, Inc.
Digital Realty Core Properties 1 Manager, LLC
Digital Realty Core Properties 2 Investor, LLC
Digital Realty Core Properties 2 Manager, LLC
Digital Realty Datafirm 2, LLC
Digital Realty Datafirm, LLC
Digital Realty Germany GmbH
Digital Realty Holdings US, LLC

Jurisdiction of Incorporation
Delaware
Delaware
Texas
France
Delaware
Delaware
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Delaware
Delaware
Delaware
Delaware
Japan
Japan
Japan
France
Delaware
Delaware
Delaware
Ireland
Luxembourg
Ireland
Luxembourg
Luxembourg
United Kingdom (England & Wales)
Luxembourg
British Columbia
Delaware
Delaware
Delaware
Delaware
Delaware
Germany
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital Realty Management France SARL
Digital Realty Management Services, LLC
Digital Realty Mauritius Holdings Limited
Digital Realty Netherlands B.V.
Digital Realty Property Manager, LLC
Digital Realty Trust, L.P.
Digital Realty Trust, LLC
Digital Saclay SCI
Digital Savvis HK Holding 1 Limited
Digital Savvis HK JV Limited
Digital Savvis Investment Management HK Limited
Digital Savvis Management Subsidiary Limited
Digital Second Manassas, LLC
Digital Services Hong Kong Limited
Digital Services Phoenix, LLC
Digital Services, Inc.
Digital Sierra Insurance Limited
Digital Singapore 1 Pte. Ltd.
Digital Singapore 2 Pte. Ltd.
Digital Singapore Jurong East Pte. Ltd.
Digital Sixth & Virginia, LLC
Digital South Price 2, LLC
Digital Spear Street, LLC
Digital Stout Holding, LLC
Digital Toronto Business Trust
Digital Toronto Nominee, Inc.
Digital Totowa, LLC
Digital Towerview, LLC
Digital Trade Street, LLC
Digital UK Finco, LLC
Digital Vienna, LLC
Digital Walsh Holding, LLC
Digital Waltham, LLC
Digital Waterview, LLC
Digital WBX, LLC
Digital Winter, LLC
Digital-Bryan Street, LLC
Digital-GCEAR1 (Ashburn), LLC
Digital-PR Beaumeade Circle, LLC
Digital-PR Devin Shafron E, LLC
Digital-PR Dorothy, LLC
Digital-PR FAA, LLC
Digital-PR Mason King Court, LLC
Digital-PR Old Ironsides 1, LLC
Digital-PR Old Ironsides 2, LLC

Jurisdiction of Incorporation
France
Delaware
Mauritius
Netherlands
Delaware
Maryland
Delaware
France
British Virgin Islands
British Virgin Islands
Hong Kong
Hong Kong
Delaware
Hong Kong
Delaware
Maryland
Nevada
Singapore
Singapore
Singapore
Delaware
Delaware
Delaware
Delaware
Maryland
British Columbia
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital-PR Toyama, LLC
Digital-PR Venture, LLC
Digital-PR Zanker, LLC
Dipper Ventures LLC
DLR 800 Central, LLC
DLR LLC
DRT Greenspoint, LLC
DRT-Bryan Street, LLC
DuPont Fabros Technology, L.P.
Elk Ventures LLC
Fawn Ventures LLC
Fox Properties LLC
Gazelle Ventures LLC
GIP 7th Street Holding Company, LLC
GIP 7th Street, LLC
GIP Alpha General Partner, LLC
GIP Alpha Limited Partner, LLC
GIP Alpha, L.P.
GIP Fairmont Holding Company, LLC
GIP Stoughton, LLC
GIP Wakefield Holding Company, LLC
GIP Wakefield, LLC
Global ASML, LLC
Global Gold Camp Holding Company, LLC
Global Gold Camp, LLC
Global Kato HG, LLC
Global Lafayette Street Holding Company, LLC
Global Marsh General Partner, LLC
Global Marsh Limited Partner, LLC
Global Marsh Member, LLC
Global Marsh Property Owner, L.P.
Global Miami Acquisition Company, LLC
Global Miami Holding Company, LLC
Global Riverside, LLC
Global Stanford Place II, LLC
Global Webb, L.P.
Global Webb, LLC
Global Weehawken Acquisition Company, LLC
Global Weehawken Holding Company, LLC
Grizzly Ventures LLC
Hawk Ventures LLC
Lemur Properties LLC
Loudoun Exchange Owners Association, Inc.
Mapp Holding Company, LLC
Mapp Property, LLC

Jurisdiction of Incorporation
Delaware
Delaware
Delaware
Delaware
Delaware
Maryland
Delaware
Delaware
Maryland
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
California
Delaware
Delaware
California
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Virginia
California
California

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
MC Digital Realty Inc.
Moose Ventures LP
Moran Road Partners, LLC
Penguins OP Sub 2, LLC
Porpoise Ventures LLC
Quill Equity LLC
Redhill Park Limited
Rhino Equity LLC
Sentrum (Croydon) Limited
Sentrum Holdings Limited
Sentrum III Limited
Sentrum IV Limited
Sentrum Limited
Sentrum Services Limited
Sixth & Virginia Holdings, LLC
Sixth & Virginia Properties
Tarantula Ventures LLC
Telx - Charlotte, LLC
Telx - Chicago Federal, LLC
Telx - Chicago Lakeside, LLC
Telx - Clifton, LLC
Telx - Dallas, LLC
Telx - Los Angeles, LLC
Telx - Miami, LLC
Telx - New York 111 8th, LLC
Telx - New York 6th Ave LLC
Telx - New York, LLC
Telx - Phoenix, LLC
Telx - Portland, LLC
Telx - San Francisco, LLC
Telx - Santa Clara, LLC
Telx - Seattle, LLC
Telx - Weehawken, LLC
Telx Ashburn, LLC
Telx Atlanta 2, LLC
Telx Boston, LLC
Telx Clifton-I, LLC
Telx Grand Avenue, LLC
Telx Real Estate Holdings, LLC
Telx Richardson, LLC
Telx, LLC
The Sentinel-Needham Primary Condominium Trust
Waspar Limited
Xeres Management LLC
Xeres Ventures LP

Jurisdiction of Incorporation
Japan
Delaware
Delaware
Maryland
Delaware
Delaware
United Kingdom (England & Wales)
Delaware
Isle of Man
British Virgin Islands
British Virgin Islands
British Virgin Islands
United Kingdom (England & Wales)
United Kingdom (England & Wales)
Delaware
Washington
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Massachusetts
Ireland
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name

Yak Ventures LLC

Jurisdiction of Incorporation

Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
List of Subsidiaries of Digital Realty Trust, L.P.

Exhibit 21.2

Entity Name
1100 Space Park Holding Company LLC
1100 Space Park LLC
150 South First Street, LLC
1500 Space Park Holdings, LLC
1500 Space Park Partners, LLC
1525 Comstock Partners, LLC
1550 Space Park Partners, LLC
200 Paul Holding Company, LLC
200 Paul, LLC
2001 Sixth Holdings LLC
2001 Sixth LLC
2020 Fifth Avenue LLC
2045-2055 LaFayette Street, LLC
2334 Lundy Holding Company LLC
2334 Lundy LLC
34551 Ardenwood Holding Company LLC
34551 Ardenwood LLC
651 Walsh Partners, LLC
Alshain Ventures LLC
Ashburn Corporate Center Owners Association, Inc.
Beaver Ventures LLC
BNY-Somerset NJ, LLC
Collins Technology Park Partners, LLC
Colo Properties Atlanta, LLC
Cosmic Ventures LLC
DBT, LLC
Devin Shafron E and F Land Condominium Owners Association, Inc.
DF Property Manangement LLC
DFT Canada LP LLC
DFT Moose GP LLC
Digital - Bryan Street Partnership, L.P.
Digital 1 Savvis Parkway, LLC
Digital 11085 Sun Center Drive, LLC
Digital 113 N. Myers, LLC
Digital 1201 Comstock, LLC
Digital 125 N. Myers, LLC
Digital 128 First Avenue, LLC
Digital 1350 Duane, LLC
Digital 1500 Space Park Borrower, LLC
Digital 1500 Space Park, LLC
Digital 1550 Space Park, LLC
Digital 1725 Comstock, LLC

Jurisdiction of Incorporation
Delaware
Delaware
Delaware
Delaware
Delaware
California
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Virginia
Delaware
Delaware
Delaware
Delaware
Delaware
Maryland
Virginia
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital 2020 Fifth Avenue Investor, LLC
Digital 210 Tucker, LLC
Digital 21110 Ridgetop, LLC
Digital 2121 South Price, LLC
Digital 21561-21571 Beaumeade Circle, LLC
Digital 2260 East El Segundo, LLC
Digital 3011 Lafayette, LLC
Digital 365 Main, LLC
Digital 3825 NW Aloclek Place, LLC
Digital 45845-45901 Nokes Boulevard, LLC
Digital 55 Middlesex, LLC
Digital 60 & 80 Merritt, LLC
Digital 717 GP, LLC
Digital 717 Leonard, L.P.
Digital 717 LP, LLC
Digital 720 2nd, LLC
Digital 89th Place, LLC
Digital 900 Walnut, LLC
Digital Above, LLC
Digital Akard, LLC
Digital Alfred, LLC
Digital Aquila, LLC
Digital Arizona Research Park II, LLC
Digital Ashburn CS, LLC
Digital Asia, LLC
Digital Australia Finco Pty Ltd
Digital Australia Investment Management Pty Limited
Digital BH 800 Holdco, LLC
Digital BH 800 M, LLC
Digital BH 800, LLC
Digital Bièvres SCI
Digital Cabot, LLC
Digital Chelsea, LLC
Digital Collins Technology Park Investor, LLC
Digital Commerce Boulevard, LLC
Digital Concord Center, LLC
Digital Connect, LLC
Digital Crawley 1 S.à r.l.
Digital Crawley 2 S.à r.l.
Digital Crawley 3 S.à r.l.
Digital Deer Park 2, LLC
Digital Deer Park 3, LLC
Digital Doug Davis, LLC
Digital East Cornell, LLC
Digital Erskine Park 2, LLC

Jurisdiction of Incorporation
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Australia
Australia
Delaware
Delaware
Delaware
France
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Luxembourg
Luxembourg
Luxembourg
Delaware
Delaware
Delaware
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital Euro Finco GP, LLC
Digital Euro Finco Partner Limited
Digital Euro Finco, L.P.
Digital Euro Finco, LLC
Digital Federal Systems, LLC
Digital Frankfurt GmbH
Digital Garland, LLC
Digital Germany Cheetah GmbH
Digital Germany Holding, LLC
Digital Gough, LLC
Digital Grand Avenue 2, LLC
Digital Grand Avenue 3, LLC
Digital Grand Avenue, LLC
Digital Greenfield B.V.
Digital Greenspoint, L.P.
Digital Greenspoint, LLC
Digital HK JV Holding Limited
Digital Hoofddorp 2 B.V.
Digital Hoofddorp B.V.
Digital Investment Management Pte. Ltd.
Digital Investments Holding, LLC
Digital Japan 1 Pte. Ltd.
Digital Japan 2 Pte. Ltd.
Digital Japan Holding Pte. Ltd.
Digital Japan Investment Management GK
Digital Japan, LLC
Digital Lafayette Chantilly, LLC
Digital Lakeside 2, LLC
Digital Lakeside 3, LLC
Digital Lakeside Holdings, LLC
Digital Lakeside, LLC
Digital Lewisville, LLC
Digital London Limited
Digital Loudoun 3, LLC
Digital Loudoun II, LLC
Digital Loudoun IV, LLC
Digital Loudoun Parkway Center North, LLC
Digital Luxembourg II S.à r.l.
Digital Luxembourg III S.à r.l.
Digital Luxembourg S.à r.l.
Digital Macquarie Park, LLC
Digital MetCenter 4-6, LLC
Digital MetCenter 7-9, LLC
Digital Midway GP, LLC
Digital Midway, L.P.

Jurisdiction of Incorporation
Delaware
British Virgin Islands
United Kingdom (Scotland)
Delaware
Delaware
Germany
Delaware
Germany
Delaware
Delaware
Delaware
Delaware
Delaware
Netherlands
Texas
Delaware
British Virgin Islands
Netherlands
Netherlands
Singapore
Delaware
Singapore
Singapore
Singapore
Japan
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
United Kingdom (England & Wales)
Delaware
Delaware
Delaware
Delaware
Luxembourg
Luxembourg
Luxembourg
Delaware
Delaware
Delaware
Delaware
Texas

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital Montigny SCI
Digital Moran Holdings, LLC
Digital MP, LLC
Digital Netherlands 10 B.V.
Digital Netherlands 11 B.V.
Digital Netherlands 12 B.V.
Digital Netherlands I B.V.
Digital Netherlands II B.V.
Digital Netherlands III (Dublin) B.V.
Digital Netherlands IV B.V.
Digital Netherlands IV Holdings B.V.
Digital Netherlands IX B.V.
Digital Netherlands V B.V.
Digital Netherlands VII B.V.
Digital Netherlands VIII B.V.
Digital Network Services, LLC
Digital Northlake, LLC
Digital Norwood Park 2, LLC
Digital Norwood Park, LLC
Digital Osaka 1 TMK
Digital Osaka 2 TMK
Digital Osaka 3 TMK
Digital Piscataway, LLC
Digital Printers Square, LLC
Digital Realty (Blanchardstown) Limited
Digital Realty (Cressex) S.à r.l.
Digital Realty (Management Company) Limited
Digital Realty (Manchester) S.à r.l.
Digital Realty (Redhill) S.à r.l.
Digital Realty (UK) Limited
Digital Realty (Welwyn) S.à r.l.
Digital Realty Canada, Inc.
Digital Realty Core Properties 2 Investor, LLC
Digital Realty Core Properties 2 Manager, LLC
Digital Realty Datafirm 2, LLC
Digital Realty Datafirm, LLC
Digital Realty Germany GmbH
Digital Realty Holdings US, LLC
Digital Realty Management France SARL
Digital Realty Management Services, LLC
Digital Realty Mauritius Holdings Limited
Digital Realty Netherlands B.V.
Digital Realty Property Manager, LLC
Digital Realty Trust, L.P.
Digital Realty Trust, LLC

Jurisdiction of Incorporation
France
Delaware
Delaware
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Netherlands
Delaware
Delaware
Delaware
Delaware
Japan
Japan
Japan
Delaware
Delaware
Ireland
Luxembourg
Ireland
Luxembourg
Luxembourg
United Kingdom (England & Wales)
Luxembourg
British Columbia
Delaware
Delaware
Delaware
Delaware
Germany
Delaware
France
Delaware
Mauritius
Netherlands
Delaware
Maryland
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Digital Saclay SCI
Digital Savvis HK Holding 1 Limited
Digital Savvis HK JV Limited
Digital Savvis Investment Management HK Limited
Digital Savvis Management Subsidiary Limited
Digital Second Manassas, LLC
Digital Services Hong Kong Limited
Digital Services Phoenix, LLC
Digital Services, Inc.
Digital Sierra Insurance Limited
Digital Singapore 1 Pte. Ltd.
Digital Singapore 2 Pte. Ltd.
Digital Singapore Jurong East Pte. Ltd.
Digital Sixth & Virginia, LLC
Digital South Price 2, LLC
Digital Spear Street, LLC
Digital Stout Holding, LLC
Digital Toronto Business Trust
Digital Toronto Nominee, Inc.
Digital Totowa, LLC
Digital Towerview, LLC
Digital Trade Street, LLC
Digital UK Finco, LLC
Digital Vienna, LLC
Digital Walsh Holding, LLC
Digital Waltham, LLC
Digital Waterview, LLC
Digital WBX, LLC
Digital Winter, LLC
Digital-Bryan Street, LLC
Digital-GCEAR1 (Ashburn), LLC
Digital-PR Beaumeade Circle, LLC
Digital-PR Devin Shafron E, LLC
Digital-PR Dorothy, LLC
Digital-PR FAA, LLC
Digital-PR Mason King Court, LLC
Digital-PR Old Ironsides 1, LLC
Digital-PR Old Ironsides 2, LLC
Digital-PR Toyama, LLC
Digital-PR Venture, LLC
Digital-PR Zanker, LLC
Dipper Ventures LLC
DLR 800 Central, LLC
DLR LLC
DRT Greenspoint, LLC

Jurisdiction of Incorporation
France
British Virgin Islands
British Virgin Islands
Hong Kong
Hong Kong
Delaware
Hong Kong
Delaware
Maryland
Nevada
Singapore
Singapore
Singapore
Delaware
Delaware
Delaware
Delaware
Maryland
British Columbia
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Maryland
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
DRT-Bryan Street, LLC
DuPont Fabros Technology, L.P.
Elk Ventures LLC
Fawn Ventures LLC
Fox Properties LLC
Gazelle Ventures LLC
GIP 7th Street Holding Company, LLC
GIP 7th Street, LLC
GIP Alpha General Partner, LLC
GIP Alpha Limited Partner, LLC
GIP Alpha, L.P.
GIP Fairmont Holding Company, LLC
GIP Stoughton, LLC
GIP Wakefield Holding Company, LLC
GIP Wakefield, LLC
Global ASML, LLC
Global Gold Camp Holding Company, LLC
Global Gold Camp, LLC
Global Kato HG, LLC
Global Lafayette Street Holding Company, LLC
Global Marsh General Partner, LLC
Global Marsh Limited Partner, LLC
Global Marsh Member, LLC
Global Marsh Property Owner, L.P.
Global Miami Acquisition Company, LLC
Global Miami Holding Company, LLC
Global Riverside, LLC
Global Stanford Place II, LLC
Global Webb, L.P.
Global Webb, LLC
Global Weehawken Acquisition Company, LLC
Global Weehawken Holding Company, LLC
Grizzly Ventures LLC
Hawk Ventures LLC
Lemur Properties LLC
Loudoun Exchange Owners Association, Inc.
Mapp Holding Company, LLC
Mapp Property, LLC
MC Digital Realty Inc.
Moose Ventures LP
Moran Road Partners, LLC
Penguins OP Sub 2, LLC
Porpoise Ventures LLC
Quill Equity LLC
Redhill Park Limited

Jurisdiction of Incorporation
Delaware
Maryland
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
California
Delaware
Delaware
California
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Texas
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Virginia
California
California
Japan
Delaware
Delaware
Maryland
Delaware
Delaware
United Kingdom (England & Wales)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entity Name
Rhino Equity LLC
Sentrum (Croydon) Limited
Sentrum Holdings Limited
Sentrum III Limited
Sentrum IV Limited
Sentrum Limited
Sentrum Services Limited
Sixth & Virginia Holdings, LLC
Sixth & Virginia Properties
Tarantula Ventures LLC
Telx - Charlotte, LLC
Telx - Chicago Federal, LLC
Telx - Chicago Lakeside, LLC
Telx - Clifton, LLC
Telx - Dallas, LLC
Telx - Los Angeles, LLC
Telx - Miami, LLC
Telx - New York 111 8th, LLC
Telx - New York 6th Ave LLC
Telx - New York, LLC
Telx - Phoenix, LLC
Telx - Portland, LLC
Telx - San Francisco, LLC
Telx - Santa Clara, LLC
Telx - Seattle, LLC
Telx - Weehawken, LLC
Telx Ashburn, LLC
Telx Atlanta 2, LLC
Telx Boston, LLC
Telx Clifton-I, LLC
Telx Grand Avenue, LLC
Telx Real Estate Holdings, LLC
Telx Richardson, LLC
Telx, LLC
The Sentinel-Needham Primary Condominium Trust
Waspar Limited
Xeres Management LLC
Xeres Ventures LP
Yak Ventures LLC

Jurisdiction of Incorporation
Delaware
Isle of Man
British Virgin Islands
British Virgin Islands
British Virgin Islands
United Kingdom (England & Wales)
United Kingdom (England & Wales)
Delaware
Washington
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Delaware
Massachusetts
Ireland
Delaware
Delaware
Delaware

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consent of Independent Registered Public Accounting Firm

Exhibit 23.1

The Board of Directors
Digital Realty Trust, Inc.

and

The Board of Directors of the General Partner
Digital Realty Trust, L.P.:

We consent to the incorporation by reference in the registration statements (No. 333-220577) on Form S-8 of Digital Realty Trust, Inc., (Nos. 333-220576
and 333-220887) on Form S-3 of Digital Realty Trust, Inc., and (no. 333-220576-01) on Form S-3 of Digital Realty Trust, L.P. of our reports dated February 28,
2018 , with respect to:

(i)

The  consolidated  balance  sheets  of  Digital  Realty  Trust,  Inc.  and  subsidiaries  as  of  December  31,  2017  and  2016,  and  the  related
consolidated income statements and statements of comprehensive income, equity, and cash flows for each of the years in the three-year
period ended December 31, 2017, and the related notes and financial statement schedule III, properties and accumulated depreciation;

(ii)

The effectiveness of Digital Realty Trust, Inc. and subsidiaries’ internal control over financial reporting as of December 31, 2017; and

(iii)

The  consolidated  balance  sheets  of  Digital  Realty  Trust,  L.P.  and  subsidiaries  as  of  December  31,  2017  and  2016,  and  the  related
consolidated income statements and statements of comprehensive income, capital, and cash flows for each of the years in the three-year
period ended December 31, 2017, and the related notes and financial statement schedule III, properties and accumulated depreciation,

which reports appear in the December 31, 2017 annual report on Form 10-K of Digital Realty Trust, Inc. and Digital Realty Trust, L.P.

Our report dated February 28, 2018 , on the effectiveness of internal control over financial reporting as of December 31, 2017 , contains an explanatory

paragraph that states management excluded from its assessment of the effectiveness of Digital Realty Trust, Inc.’s internal control over financial reporting as of
December 31, 2017 , DuPont Fabros Technology, Inc. and subsidiaries’ internal control over financial reporting associated with total assets of $8.4 billion and total
revenues of $178 million included in the consolidated financial statements of Digital Realty Trust, Inc. and subsidiaries as of and for the year ended December 31,
2017 . Our audit of internal control over financial reporting of Digital Realty Trust, Inc. also excluded an evaluation of the internal control over financial reporting
of DuPont Fabros Technology, Inc. and subsidiaries.

San Francisco, California
February 28, 2018

/s/ KPMG LLP

 
 
 
 
 
 
Exhibit 31.1

Certification of Chief Executive Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, A. William Stein, certify that:

I have reviewed this annual report on Form 10-K of Digital Realty Trust, Inc.;

1. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements

made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

2. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial

condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

3. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange

Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant
and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

4. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably

likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control

over financial reporting.

Dated: February 28, 2018

By:

/s/     A. WILLIAM STEIN

A. William Stein
Chief Executive Officer
(Principal Executive Officer)

 
 
 
Certification of Chief Financial Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 31.2

I, Andrew P. Power, certify that:

I have reviewed this annual report on Form 10-K of Digital Realty Trust, Inc.;

1. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements

made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

2. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial

condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

3. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange

Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant
and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

4. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably

likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control

over financial reporting.

Dated: February 28, 2018

By:

/s/     ANDREW P. POWER

Andrew P. Power
Chief Financial Officer
(Principal Financial Officer)

 
 
 
Exhibit 31.3

Certification of Chief Executive Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, A. William Stein, certify that:

I have reviewed this annual report on Form 10-K of Digital Realty Trust, L.P.;

1. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements

made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

2. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial

condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

3. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange

Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant
and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

4. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably

likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control

over financial reporting.

Dated: February 28, 2018

By:

/s/    A. WILLIAM STEIN

A. William Stein

Chief Executive Officer
(Principal Executive Officer)
Digital Realty Trust, Inc., sole general partner of
Digital Realty Trust, L.P.

 
 
 
 
 
Exhibit 31.4

Certification of Chief Financial Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Andrew P. Power, certify that:

I have reviewed this annual report on Form 10-K of Digital Realty Trust, L.P.;

1. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements

made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

2. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial

condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

3. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange

Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant
and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to
ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for
external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent
fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to
materially affect, the registrant’s internal control over financial reporting; and

4. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the

registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably

likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control

over financial reporting.

Dated: February 28, 2018

By:

/s/    ANDREW P. POWER

Andrew P. Power

Chief Financial Officer
(Principal Financial Officer)
Digital Realty Trust, Inc., sole general partner of
Digital Realty Trust, L.P.

 
 
 
 
 
Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as
Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Digital Realty Trust, Inc. (the “Company”)
hereby certifies, to such officer’s knowledge, that:

Exhibit 32.1

(i)

the accompanying Annual Report on Form 10-K of the Company for the year ended December 31, 2017 (the “Report”) fully complies with the
requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company

at the dates and for the periods indicated.

Dated: February 28, 2018

/s/     A. WILLIAM STEIN

A. William Stein
Chief Executive Officer
(Principal Executive Officer)

Pursuant to Securities and Exchange Commission Release 33-8238, dated June 5, 2003, this certification is being furnished and shall not be deemed filed by

the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration statement of the
Company filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to

the Securities and Exchange Commission or its staff upon request.

Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as
Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Digital Realty Trust, Inc. (the “Company”)
hereby certifies, to such officer’s knowledge, that:

Exhibit 32.2

(i)

the accompanying Annual Report on Form 10-K of the Company for the year ended December 31, 2017 (the “Report”) fully complies with the
requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company

at the dates and for the periods indicated.

Dated: February 28, 2018

/s/     ANDREW P. POWER

Andrew P. Power
Chief Financial Officer
(Principal Financial Officer)

Pursuant to Securities and Exchange Commission Release 33-8238, dated June 5, 2003, this certification is being furnished and shall not be deemed filed by

the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration statement of the
Company filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to

the Securities and Exchange Commission or its staff upon request.

Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as
Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Digital Realty Trust, Inc., in its capacity as
the sole general partner of Digital Realty Trust, L.P. (the “Operating Partnership”), hereby certifies, to such officer’s knowledge, that:

Exhibit 32.3

(i)

the accompanying Annual Report on Form 10-K of the Operating Partnership for the year ended December 31, 2017 (the “Report”) fully
complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating

Partnership at the dates and for the periods indicated.

Dated: February 28, 2018

/s/    A. WILLIAM STEIN

A. William Stein

Chief Executive Officer
(Principal Executive Officer)
Digital Realty Trust, Inc., sole general partner of
Digital Realty Trust, L.P.

Pursuant to Securities and Exchange Commission Release 33-8238, dated June 5, 2003, this certification is being furnished and shall not be deemed filed by

the Operating Partnership for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration
statement of the Operating Partnership filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating

Partnership and furnished to the Securities and Exchange Commission or its staff upon request.

Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as
Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Digital Realty Trust, Inc., in its capacity as
the sole general partner of Digital Realty Trust, L.P. (the “Operating Partnership”), hereby certifies, to such officer’s knowledge, that:

Exhibit 32.4

(i)

the accompanying Annual Report on Form 10-K of the Operating Partnership for the year ended December 31, 2017 (the “Report”) fully
complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating

Partnership at the dates and for the periods indicated.

Dated: February 28, 2018

/s/    ANDREW P. POWER

Andrew P. Power

Chief Financial Officer
(Principal Financial Officer)
Digital Realty Trust, Inc., sole general partner of
Digital Realty Trust, L.P.

Pursuant to Securities and Exchange Commission Release 33-8238, dated June 5, 2003, this certification is being furnished and shall not be deemed filed by

the Operating Partnership for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration
statement of the Operating Partnership filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating

Partnership and furnished to the Securities and Exchange Commission or its staff upon request.