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Corporate Office Properties Trust

ofc · NYSE Real Estate
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Ticker ofc
Exchange NYSE
Sector Real Estate
Industry REIT - Office
Employees 201-500
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FY2008 Annual Report · Corporate Office Properties Trust
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The Strength of 
Our Relationships

A Decade of Leadership in Performance

Annual Report 2008    10 Year Anniversary

WEBSITE
For additional information on the 
Company, visit our website at  
www.copt.com.

FORWARD-LOOKING 
INFORMATION
This report contains forward-looking 
information based upon the Company’s 
current best judgment and expecta-
tions. Actual results could vary from 
those presented herein. The risks and 
uncertainties associated with the for-
ward-looking information include the 
strength of the commercial office real 
estate market in which the Company 
operates, competitive market condi-
tions, general economic growth, inter-
est rates and capital market conditions. 
For further information, please refer  
to the Company’s filings with the 
Securities and Exchange Commission.

CORPORATE GOVERNANCE 
CERTIFICATION
The Company submitted to the New 
York Stock Exchange in 2008 the 
Annual CEO Certification required by 
Section 303A.12 of the New York Stock 
Exchange corporate governance rules.

SARBANES-OXLEY ACT
SECTION 302 CERTIFICATION
The Company filed with the Securities 
and Exchange Commission, as an 
exhibit to its Form 10-K for the  
year ended December 31, 2008, the 
Sarbanes-Oxley Act Section 302 certi-
fication regarding the quality of the 
Company’s public disclosure.

corporate information

EXECUTIVE OFFICERS
Randall M. Griffin
President and Chief Executive Officer

Roger A. Waesche, Jr.
Executive Vice President and  
Chief Operating Officer

Stephen E. Riffee
Executive Vice President and  
Chief Financial Officer

Karen M. Singer
Senior Vice President, General 
Counsel and Secretary

SERVICE COMPANY  
EXECUTIVE OFFICER
Wayne H. Lingafelter
President, COPT Development & 
Construction Services, LLC

EXECUTIVE OFFICES
Corporate Office Properties Trust
6711 Columbia Gateway Drive,  
Suite 300
Columbia, Maryland 21046
Telephone: (443) 285-5400
Facsimile: (443) 285-7650

REGISTRAR AND  
TRANSFER AGENT
Shareholders with questions concerning 
stock certificates, account information, 
dividend payments or stock transfers 
should contact our transfer agent:
Wells Fargo Bank, N.A.
Shareowner Services
161 North Concord Exchange
10yr
South St. Paul, Minnesota 55075
Toll-free: (800) 468-9716
www.wellsfargo.com/shareownerservices

LEGAL COUNSEL
Morgan, Lewis & Bockius
1701 Market Street
Philadelphia, Pennsylvania 19103

INDEPENDENT AUDITORS
PricewaterhouseCoopers LLP
100 East Pratt Street, Suite 1900
Baltimore, Maryland 21202

board of trustees

DIVIDEND REINVESTMENT PLAN
Registered shareholders may reinvest 
dividends through the Company’s  
dividend reinvestment plan. For more 
information, please contact Wells 
Fargo Shareowner Services at (800) 
468-9716.

ANNUAL MEETING
The annual meeting of the shareholders 
will be held at 9:30 a.m. on Thursday, 
May 14, 2009, at the corporate head-
quarters of Corporate Office Properties 
Trust at 6711 Columbia Gateway Drive, 
Suite 300, Columbia, Maryland 21046.

INVESTOR RELATIONS
For help with questions about the 
Company, or for additional corporate 
information, please contact:
Mary Ellen Fowler
Senior Vice President and Treasurer
Corporate Office Properties Trust
6711 Columbia Gateway Drive,  
Suite 300
Columbia, Maryland 21046
Telephone: (443) 285-5450
Facsimile: (443) 285-7640
Email: ir@copt.com

SHAREHOLDER INFORMATION
As of March 16, 2009, the Company 
had approximately 54,367,000  
outstanding common shares owned  
by approximately 670 shareholders of 
record. The number of shareholders 
does not include the number of persons 
whose shares are held in nominee or 
“street name” accounts through brokers 
or clearing agencies.

COMMON AND  
PREFERRED SHARES
The common and preferred shares  
of Corporate Office Properties Trust 
are traded on the New York Stock 
Exchange. Common shares are traded 
under the symbol OFC, and preferred 
shares are traded under the symbols 
OFCPrG, OFCPrH or OFCPrJ.

(top photo, l to r)

Jay H. Shidler
Chairman of the Board
Managing Partner,
The Shidler Group

Steven D. Kesler
Chief Financial Officer
CRP Operations, LLC

Kenneth D. Wethe
Principal
Wethe & Associates

Randall M. Griffin
President and  
Chief Executive Officer
Corporate Office Properties Trust

(bottom photo, l to r)

Clay W. Hamlin, III
Vice Chairman of the Board

Kenneth S. Sweet, Jr.
Managing Partner
Gordon Stuart Associates

Douglas M. Firstenberg
Founding Principal
Stonebridge Associates, Inc.

Thomas F. Brady
Executive Vice President, 
Corporate Strategy
Constellation Energy

Robert L. Denton
Managing Partner
The Shidler Group

3.0

2.5

2.0

1.5

1.0

0.5

0.0

3.0

2.5

2.0

1.5

1.0

0.5

0.0

FFO Growth Per Share

10yr

$2.64

10-year history of growth

’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05 ’06 ’07 ’08

Dividend Growth

FFO Growth Per Share

DIVIDEND GROWTH

FFO PER SHARE GROWTH* 

3.0

2.5

2.0

1.5

1.0

0.5

0.0

$1.43

$2.64

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’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05 ’06 ’07 ’08

Dividend Growth

* A reconciliation of the components of FFO per share to 
diluted earnings per share can be found on page 88.

3.0

2.5

2.0

1.5

1.0

0.5

0.0

$1.43

’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05 ’06 ’07 ’08

 
 
 
 
 
 
DOW JONES

S&P

RMS

COPT

TOTAL SHAREHOLDER RETURN*

700

600

500

400

300

200

100

0

-100

-200

-300

-400

-500

-600

-700

700

600

500

400

300

200

100

0

-100

-200

-300

-400

-500

-600

-700

700

600

500

400

300

200

100

0

-100

-200

-300

-400

-500

-600

-700

700

600

500

400

300

200

100

0

-100

-200

-300

-400

-500

-600

-700

700%

600

500

400

300

200

100

0

-100

COPT

RMS
Dow Jones
S&P

1 yr

3 yr

5 yr

10 yr

* Data as of December 31, 2008, compiled by NAREIT and MSCI

10 yr

A DECADE OF LEADERSHIP IN PERFORMANCE

The Strength of Our Relationships paid off 
handsomely during solid real estate envi-
ronments and served our shareholders well 
in challenging, recessionary times. In a 
decade bounded by explosive industry 
growth and a painful economic contrac-
tion, COPT produced a 648% total return 
for shareholders—the highest among  
all equity REITs and far higher than the 
negative 13% total return for the S&P 500 
stock index.

which we facilitate and participate in our 
customers’ growth. Our leadership and 
expertise in both environmentally sustain-
able and mission-critical building design 
helps our customers realize their visions in 
ways that few can duplicate.

At the same time, our sound, balanced capi-
tal structure has given us a competitive 
advantage and affords us the flexibility to 
opportunistically augment our growth in 
ways that mesh with our long-term strategy.

COPT’s performance is rooted in the 
strong growth characteristics of our vibrant 
customer base and our unwavering atten-
tion to customer relationships, supported 
through award winning customer service. 
The quality of our performance flows from 
a customer-driven market strategy, through 

In the office REIT industry, where the 
“product” can become a commodity subject 
to competitive pricing and market cycles, 
the Strength of Our Relationships has earned 
COPT rare name brand distinction and 
generated outperformance for our 
shareholders.

Page 1

A message to 
our shareholders

Randall M. Griffin  President and Chief Executive Officer

“

We owe our consistent outperformance to the 

quality of our customer-driven business model 

and our unique ability to serve a growing core 

customer base.”

It is with great pride that we present this 
year’s annual report, reflecting our 10th 
anniversary as a specialty office REIT and 
NYSE company. A decade ago, we began 
laying the foundation for sustainable long-
term growth and consistent financial out-
performance. As we turn the corner on  
our first decade as a NYSE company, we 
are proud of what COPT has achieved for 
its shareholders.

We have grown from a company with $523 
million in market capitalization to a nearly 
$4 billion company in just 10 years. Our 
integrated customer, product and market 
strategies have helped us generate a 648% 
total shareholder return over the decade—
the highest among all equity REITs and 
significantly higher than the 100% total 
return for the RMS and the negative 13% 
total return for the S&P 500 stock index.

Equally important for our shareholders,  
we also have managed to produce consis-
tent returns. We achieved this despite the 
decade’s volatile economic and real estate 
market environments, punctuated by one of 
the most severe global economic downturns 
in history. COPT has raised its dividend 
every year in this decade, for dividend 
growth amounting to 111% for the 10-year 
period since 1998.

COPT’s Strategy Paid Off in 2008. We  
certainly did not foresee the magnitude  
of the credit and financial market crises 
that engulfed the global economy in 2008. 
However, given our concerns about the 
macroeconomic environment and excesses 
in certain sectors of the real estate market, 
in 2007 we began preparing for a potentially 

Corporate Office Properties Trust 2008 ANNUAL REPORT  Page 2

severe recession. Accordingly, we exercised 
tighter control over our discretionary spend-
ing, built up our lines of credit, secured 
early the funds we would need to maintain 
our business and support new growth, and 
took advantage of COPT’s strong perfor-
mance to raise equity, adding additional 
capacity to our balance sheet.

For 2008, we were number one in our 
office REIT peer group for total shareholder 
return, and the only office company that 
generated positive shareholder return in 
the peer group. Our 2% total shareholder 
return for 2008 compared well with an 
average 37% negative return for our office 
REIT peer group. We also were able to 
increase our dividend by 10%, for the 11th 
year in a row, in an environment when 40% 
of our industry peers were forced to cut or 
suspend dividends since the fall of 2008.

Notable Departures and Transitions. March 
2009 marked the retirement of Dwight 
Taylor, CEO of COPT Development & 
Construction Services and our second  
longest tenured team member with over 24 
years of service, and Peg Ohrt, Senior Vice 
President of Human Resources, who had 
over 10 years of service. Both individuals 
were significant contributors to our success 
and will be greatly missed.

Bringing new depth to the team, Wayne 
Lingafelter has taken over the role of 
President of COPT Development & 
Construction Services, and Holly Edington 
succeeds Peg as Vice President of Human 
Resources. Wayne brings 20 years of devel-
opment and construction experience to 
COPT, and Holly brings extensive real 
estate and large company management 
experience to her new role.

Positioned for Continued Industry-Leading 
Growth. Since our inception, we have 
worked to build a strong, sustainable com-
pany that could outperform its office REIT 
peers in rising real estate markets, while 
also outperforming in down markets. We 
have implemented strategies designed to 

protect and preserve our company and 
serve our customers and shareholders in an 
adverse environment. Our strong results in 
the current environment have helped con-
firm the soundness of our approach.

This year will not be without its challenges, 
but we believe we are well positioned to 
continue our growth. The majority of our 
properties are in the Greater Washington, 
DC region, which tends to be less affected 
by recessions. We earn over half of our  
real estate revenue from assets primarily 
leased to tenants in the U.S. Government, 
Defense Information Technology (IT) and 
Data sectors, which continue to expand. 
And, we are positioned to absorb many of 
the estimated 60,000 net new jobs coming 
to Maryland as a result of BRAC (Base 
Realignment and Closure) over the next 
three years.

We believe COPT is well positioned to 
continue to produce industry-leading 
returns and stability for our shareholders  
in the period ahead, as the quality behind 
“The COPT Way” increasingly distin-
guishes our company within the REIT 
office sector.

In this difficult environment, I truly appre-
ciate the professionalism, expertise and 
pursuit of excellence consistently demon-
strated by our team during 2008. Thank 
you to all of our employees for your dedi-
cation and hard work. Thanks also to our 
Board of Trustees for your guidance during 
2008. And thanks to you, our shareholders, 
for your confidence and support. We look 
forward to continued growth and excel-
lence in 2009.

Sincerely yours,

Randall M. Griffin
President and Chief Executive Officer

Page 3

20

15

10

5

0

-5

-10

20

15

10

5

0

-5

-10

In 2008, we achieved:

• positive shareholder return
COPT
• a 10% dividend increase
18%
• record square footage of leasing
• record percentage of renewals

1yr

FFO Growth

20

15

10

5

0

-5

2008 Results

Office Peer 
Group Average 

All Equity
Average

#1 Office REIT for 

2008 FFO Growth

18%

Office Peer 

All Equity

COPT

Group Average 

Average

2008 DIVIDEND GROWTH*

2008 FFO PER SHARE GROWTH*

Dividend Growth

FFO Growth

1yr

20

15

10

5

0

-5

20

2008 Mergent Dividend Achiever
(10 years of increasing dividends)

COPT
10%

15

10

5

0

-5

20

15

10

5

0

-5

COPT
18%

#1 Office REIT for 

2008 FFO Growth

18%

2008 Mergent Dividend Achiever

(10 years of increasing dividends)

10%

Office Peer 
Group Average 

All Equity
Average

-10

Office Peer 
Group Average 

All Equity
Average

Office Peer 

All Equity

COPT

Group Average 

Average

Office Peer 

All Equity

COPT

Group Average 

Average

*Data compiled by Stifel Nicolaus

Dividend Growth

Corporate Office Properties Trust 2008 ANNUAL REPORT  Page 4

20

20

2008 Mergent Dividend Achiever
(10 years of increasing dividends)

COPT

10%

2008 Mergent Dividend Achiever

(10 years of increasing dividends)

10%

Office Peer 

All Equity

Group Average 

Average

Office Peer 

All Equity

COPT

Group Average 

Average

15

10

5

0

-5

-10

15

10

5

0

-5

1 yr

40

30

20

10

0

-10

-20

-30

-40

2008 TOTAL SHAREHOLDER RETURN*

10%

0

-10

-20

-30

-40

Office Peer 
Group Average

RMS

S&P

Dow 
Jones

* Data compiled by NAREIT, MSCI and Stifel Nicolaus

COPT

2%

#1 REIT in Office 
Peer Group for 2008 
Total Shareholder Return

At COPT, the resilience and growth  
characteristics of our core customer base 
have helped insulate the company from  
the worst effects of the current recession 
and provided the company with a strong  
platform for continued expansion. As of 
December 31, 2008, the company owned 
256 properties totaling 19.2 million rent-
able square feet that were 93% occupied, 
including 18 properties totaling 769,000 
square feet held through joint ventures.

For 2008, we achieved:
•   record FFO (funds from operations) and 
AFFO (adjusted funds from operations),
•   record leasing of 3.2 million square feet,
•   record 78% renewal rate on leases expir-

ing, and

•   strong capital activity to fund future 
development activities, resulting in 
healthy payout ratios and excellent 

financial capacity to meet our limited debt 
maturities over the next several years.

Operationally, during the year COPT 
placed into service 524,000 square feet of 
additional office space—with approximately 
88% of the space leased by year-end.

In the future, we expect to earn an increas-
ing portion of our revenues from our core 
customers in market segments that are 
among the most stable and growth ori-
ented: government agencies, defense IT 
contractors, and data facilities, as well as 
from our assets in large business parks 
located primarily adjacent to government 
demand drivers. We are aiming for assets 
primarily leased to tenants within these 
four core segments to account for 85%  
of company revenues by year-end 2010, 
compared with 79% at year-end 2008.

Page 5

Integral Systems’ new  
corporate headquarters at  
6721 Columbia Gateway Drive,  
Columbia, Maryland.

customer strategy

OUR TOP 20 TENANTS

U. S. Government
Northrop Grumman Corporation
Booz Allen Hamilton, Inc.
CSC
L-3 Communications Holdings, Inc.
Unisys Corporation
General Dynamics Corporation
The Aerospace Corporation
ITT Corporation
Wachovia Corporation
Comcast Corporation

AT&T Corporation
The Boeing Company
Ciena Corporation
BAE Systems PLC
The Johns Hopkins Institutions
Science Applications  
International Corp.

Merck & Co., Inc.
Magellan Health Services, Inc.
AARP

Corporate Office Properties Trust 2008 ANNUAL REPORT  Page 6

INTEGRAL SYSTEMS

COPT and Integral Systems team members partnered  
to create a win-win solution: (seated, l to r) Cathy Ward, 
COPT SVP of Asset Management/Leasing, and Integral 
Systems CFO Bill Bambarger; (standing, l to r) Integral 
Systems executives R. Miller Adams, General Counsel, 
and John Higginbotham, CEO; and Connie Epperlein, 
COPT Corporate Designer & Programmer.

“Integral Systems’ partnership with COPT is a key  
component of our ongoing growth strategy,” says  
Integral Systems CFO Bill Bambarger.

A CUSTOMER-CENTRIC STRATEGY LEADS TO A 2008 SUCCESS STORY

A decade ago, we established a pattern of 
ongoing collaboration with our customers. 
Today, we continue to expand strategic 
customer relationships, working with cli-
ents in multiple locations as an essential 
component of our customers’ success.

We have strengthened our emphasis on our 
core customers in the U.S. Government, 
Defense IT and Data sectors, in line with 
our objective of having assets primarily 
leased to these core customer groups account 
for 65% of our revenue by year-end 2010, 
compared with 55% at year-end 2008. Our 
Top 20 Tenants, the majority of whom are 
in the U.S. Government, Defense IT and 
Data sectors, continue to expand their busi-
ness with us, having 183 leases with us 
totaling 8.9 million square feet.

Our increased emphasis on our core clients 
has given us a unique understanding of our 
customers and a keen appreciation of the 
environments in which they operate. This 
strategic customer focus is evidenced by 
our relationship with Integral Systems, Inc. 
(NASDAQ: ISYS), a leading provider of 
satellite ground systems. Strategically,  

COPT and Integral Systems fit very well 
together. Already a COPT tenant with 
49,000 square feet of space in our Colorado 
Springs portfolio, Integral Systems was 
seeking to relocate their Maryland head-
quarters. COPT had demonstrated cre-
ativity in solving their needs in Colorado, 
which attracted Integral Systems to choose 
COPT in Maryland.

In June 2008, Integral Systems and COPT 
executed a full-building lease for 131,000 
square feet at 6721 Columbia Gateway 
Drive. Together we viewed this project as a 
partnership, not just a transaction. COPT’s 
ability to structure a creative solution to 
meet Integral Systems’ needs and help them 
grow in strategic locations, our commit-
ment to ‘green’ building, our emphasis on 
community involvement, and our ability to 
build and manage a technically sophisti-
cated, Class A office building all played a 
role in the successful execution of this lease.

In short, our product, customer, market  
and sustainability strategies came together 
in perfect alignment to set us apart from 
the competition.

Page 7

AWARD WINNING CUSTOMER SERVICE

We reinforce our customer relationships through consistently  
exceptional customer service and have been rewarded with a  
singular level of tenant loyalty. COPT has been recognized for  
its exceptional customer service, winning the “Best in Industry”  
rating in the large owner category in the CEL & Associates, Inc. 
national survey of tenant satisfaction for the 5th consecutive year.  
At a time when providing exceptional service has become a luxury  
for many peer firms, COPT continues to believe our award winning 
customer service remains an essential component of our ongoing  
success and is a clear differentiator among our office peers.

Corporate Office Properties Trust 2008 ANNUAL REPORT   Page 8

ITT

At left: Patriot Park VI, at 655 Space Center Drive in 
Colorado Springs, Colorado, was fully leased to a  
Defense IT sector tenant. The building achieved LEED 
Gold certification. 

Far left: COPT’s exceptional customer service is recognized 
by our tenants, who have voted us “Best in Industry” for  
the fifth consecutive year in the CEL & Associates, Inc. 
national survey of tenant satisfaction. 

market strategy

Our customer demand-driven market  
strategy allows us to establish dominant 
positions in strategic markets and support 
the growth of our key customers in the 
U.S. Government, Defense IT and Data 
sectors. Accordingly, we have entered  
strategic markets to support the needs  
of our core customers when we have the 
opportunity to build market or submarket 
critical mass.

In that market, ITT Corporation (NYSE: 
ITT) leased and occupied 104,000 square 
feet for their Systems Division at 655 Space 
Center Drive in Patriot Park. ITT Corpo-
ration, a world leader in systems support 
and technical solutions for the military and 
government partners, also leases space in 
The National Business Park in Maryland, 
and has nine leases with COPT totaling 
over 290,000 square feet.

This was the case in Colorado Springs. We 
entered the market in 2005 at the request 
of a Defense IT tenant and quickly became 
the leading Class A office developer, now 
with over 1.2 million square feet of space  
in 17 buildings.

COPT’s customer, product and market 
strategies intersect to deliver superior 
products in locations that provide our  
tenants with proximity to their customers, 
creating win-win solutions for COPT and 
our Defense sector tenants.

Page 9

 
1

4

BRAC Demand Driver: 

Aberdeen Proving Ground

Aberdeen, Maryland

Scheduled to gain an estimated 24,000 

jobs both on and off-site by 2011

COPT owns:

2 buildings under development/165,000 sf

45 acres/600,000 developable sf

in North Gate Business Park

Demand Driver: 

U.S. Government 

Chantilly, Virginia

COPT owns:

9 operating properties/1.5 m sf

56 acres/1.1 m developable sf

in Westfields Corporate Center

BRAC Demand Driver: 

Fort Detrick

Frederick, Maryland

Scheduled to gain an estimated 4,500 

jobs both on and off-site by 2011

COPT owns:

1 operating property/118,000 sf

113 acres/1.2 m developable sf

Demand Driver: 

Patuxent River Naval Air Station

Lexington Park, Maryland

COPT owns:

12 operating properties/620,000 sf

6 acres/60,000 developable sf

in Exploration and Expedition 

Office Parks

2

5

BRAC Demand Driver: 

Fort Meade, Maryland

Scheduled to gain an estimated 36,000 

jobs both on and off-site by 2011

3

COPT owns:

21 operating properties/2.4 m sf

4 buildings under construction or 

development/616,000 sf

276 acres/up to 3.7 m developable sf

in The National Business Park and 

Arundel Preserve

Demand Driver: 

Naval Surface Warfare Center

6

Dahlgren, Virginia

COPT owns:

6 operating properties/205,000 sf

39 acres/122,000 developable sf

in Dahlgren Technology Center

4

1

3

5

4

6

2

Demand Driver: 
Peterson Air Force Base
Colorado Springs, Colorado
COPT owns:
10 operating properties/633,000 sf
1 building under construction/90,000 sf
77 acres/846,000 developable sf
in Colorado Springs East Submarket

Demand Driver: 
U.S. Government 
San Antonio, Texas
COPT owns:
5 operating properties/640,000 sf
2 buildings under development/50,000 sf
86 acres/1.3 m developable sf

Corporate Office Properties Trust 2008 ANNUAL REPORT  Page 10

Demand Driver: 

Peterson Air Force Base

Colorado Springs, Colorado

COPT owns:

10 operating properties/633,000 sf

1 building under construction/90,000 sf

77 acres/846,000 developable sf

in Colorado Springs East Submarket

Demand Driver: 

U.S. Government 

San Antonio, Texas

COPT owns:

5 operating properties/640,000 sf

2 buildings under development/50,000 sf

86 acres/1.3 m developable sf

1

BRAC Demand Driver: 
Aberdeen Proving Ground
Aberdeen, Maryland
Scheduled to gain an estimated 24,000 
jobs both on and off-site by 2011
COPT owns:
2 buildings under development/165,000 sf
45 acres/600,000 developable sf
in North Gate Business Park

Demand Driver: 
U.S. Government 
Chantilly, Virginia
COPT owns:
9 operating properties/1.5 m sf
56 acres/1.1 m developable sf
in Westfields Corporate Center

4

BRAC Demand Driver: 
Fort Detrick
Frederick, Maryland
Scheduled to gain an estimated 4,500 
jobs both on and off-site by 2011
COPT owns:
1 operating property/118,000 sf
113 acres/1.2 m developable sf

Demand Driver: 
Patuxent River Naval Air Station
Lexington Park, Maryland
COPT owns:
12 operating properties/620,000 sf
6 acres/60,000 developable sf
in Exploration and Expedition 
Office Parks

2

5

3

BRAC Demand Driver: 
Fort Meade, Maryland
Scheduled to gain an estimated 36,000 
jobs both on and off-site by 2011
COPT owns:
21 operating properties/2.4 m sf
4 buildings under construction or 
development/616,000 sf
276 acres/up to 3.7 m developable sf
in The National Business Park and 
Arundel Preserve

6

Demand Driver: 
Naval Surface Warfare Center
Dahlgren, Virginia
COPT owns:
6 operating properties/205,000 sf
39 acres/122,000 developable sf
in Dahlgren Technology Center

4

1
3

5

4

6

2

MARKET STRATEGY:  
POSITIONED FOR GROWTH

Our market strategy is a natural extension 
of our customer strategy. We concentrate 
on regional markets and submarkets adja­
cent to areas benefiting from growth in 
government and military demand, as well  
as growth corridors where COPT can 
acquire critical mass ownership positions 
and become the number one or number  
two owner in the market. We have pursued 
this growth strategy in the Northern 
Virginia, Baltimore/Washington corridor, 
San Antonio and Colorado Springs markets.

To meet the needs of our core customers, 
we have acquired an inventory of develop­
able land to accommodate their growth.  
In this context, we plan to develop land 
adjacent to installations that are expected  
to gain jobs as a result of the Base Realign­
ment and Closure program (BRAC)­related 
changes, including Fort Meade, Fort Detrick 
and Aberdeen Proving Ground.

Page 11

product & sustainability

COPT’s “Leed Portfolio” includes:
•  14 professionals who hold the LEED 
Accredited Professional designation

• 4 buildings certified Gold
  • 4 buildings certified Silver
  •  33 others registered for LEED Silver or 

Gold certification

Corporate Office Properties Trust 2008 ANNUAL REPORT  Page 12

 
 
302, 304 and 306 Sentinel Drive at The National Business 
Park (far left) and 5825 University Research Court at M Square 
all achieved LEED Silver certification.

strategies

At COPT, our business is designing,  
developing, acquiring and operating  
technically sophisticated buildings in aes-
thetically appealing settings that are envi-
ronmentally sensitive, sustainable and meet 
the unique requirements of our customers.

Our expertise in mission-critical building 
design and construction of buildings that 
meet government force protection require-
ments creates significant opportunities  
for growth. We are able to offer our cus-
tomers an integrated team of professionals 
with leading-edge technical knowledge and 
a dedicated service team with specialized 
expertise and credentials to serve our gov-
ernment and defense sector tenants.

Similarly, since 2003, COPT has been a 
leader in the development and design of envi-
ronmentally sensitive and sustainable build-
ings, with specific expertise in construction 
of LEED-certified buildings. Our competitive 
advantage positions the company to meet 
green building standards we believe will be 
required in the very near future.

As we go forward, we will be increasing the 
percentage of LEED-certified buildings in 
our real estate portfolio. We expect 50%  
of our buildings to meet LEED certification 
by 2015. We expect to:
•   continue to construct all new buildings 
at minimum LEED Silver certification,
•   retrofit select existing buildings to meet 
minimum LEED-EB certification goals,

•   operate all buildings utilizing green 

housekeeping standards and educate ten-
ants in green operating practices, and
•   operate our company using green oper-

ating and purchasing practices.

Green environments increase productivity, 
reduce operating costs, and help tenants 
attract and retain employees. We believe 
green building standards will become the 
requirement for future government trans-
actions. We also expect companies with 
major LEED portfolios to have greater 
investor appeal, commanding higher price 
earnings multiples and attracting more 
cost-effective capital.

Page 13

capital strategy

In 2007 and 2008, we:

•  increased our unsecured revolver from 

$500 million to $600 million

•  closed on a $225 million construction 

revolver

  •  closed on a $221 million mortgage loan
  •  issued 3.7 million common shares, raising 
$139 million before offering expenses

Corporate Office Properties Trust 2008 ANNUAL REPORT  Page 14

 
 
In an environment in which many in our industry 
face unprecedented capital constraints, we believe 
that COPT has adequate capital to meet our cus-
tomers’ building and development requirements. 
300 Sentinel Drive (far left) at The National Business 
Park in Maryland, and Epic One at InterQuest 
office park in Colorado Springs, are both partially 
leased to Defense IT contractors.

As we have done with our core tenants,  
we have maintained and grown our lender 
relationships over the past 10 years. These 
relationships are very important to us, in 
both strong and challenging economic 
environments.

We have positioned the company well 
financially, with low near-term debt maturi-
ties, loans in place to fund our development 
and construction pipeline, and capacity to 
take advantage of new opportunities which 
we expect will become available later this 
year and into 2010.

In preparation for a potentially severe 
recession, in 2007 and through 2008 we 
tapped our strong financial relationships to 
secure additional lines of credit and raise 
equity. Our capital guidelines have helped 
us maintain our industry-leading growth 
while strengthening our balance sheet to 
weather more challenging environments.

Our capital strategy is driven by our  
business model, where we:
•   operate primarily as a secured borrower 

to maintain maximum flexibility,
•   utilize unsecured lines of credit and 

secured debt,

•   maintain strong fixed charge coverage 

and dividend payout ratios and moderate 
leverage levels, and

•   have low near-term debt maturities.

Page 15

a decade of performance

LEADERSHIP AND PERFORMANCE, EMBEDDED IN OUR CULTURE

COPT owes its success to the exceptional 
talent and dedication of its employees. Since 
the merger of COPT and Constellation 
Real Estate in September 1998, COPT  
has benefited from the contributions of 
uniquely devoted professionals in every 
sphere of our business, from design and 
development to property management, 
finance and administration.

We offer special thanks and appreciation to 
those who have been with us throughout 
our 10-year history (pictured above), and  

also to all those who have worked at COPT 
over the years, whose unswerving commit-
ment to excellence has helped us realize 
our vision.

Working collaboratively and creatively 
together, we have built a company that has 
distinguished itself within the industry. We 
are confident that the quality of the employ-
ees we attract will take COPT to the next 
level of achievement in financial perfor-
mance, mission-critical building construc-
tion and environmentally sensitive design.

Corporate Office Properties Trust  2008 ANNUAL REPORT   Page 16

financials

selected financial data

The following table sets forth summary financial data 
as of and for each of the years ended December 31, 
2004 through 2008. The table illustrates the signi ficant 
growth our Company experienced over the  periods 
reported. Most of this growth, particularly pertaining 
to revenues, operating income and total assets, was 
attributable to our addition of properties through 
acquisition and development activities. We financed 
most of the acquisition and development activities  
by incurring debt and issuing preferred and common 
equity, as indicated by the growth in our interest 

expense, preferred share dividends and weighted 
 average common shares outstanding. The growth  
in our general and administrative expenses reflects,  
in large part, the growth in management resources 
required to support the increased size of our portfolio. 
Since this information is only a summary, you should 
refer to our Consolidated Financial Statements and 
notes thereto and the section of this report entitled 
“Management’s Discussion and Analysis of Financial 
Condition and Results of Operations” for  
additional information. 

(in thousands, except per share data and number of properties)

2008

2007

2006

2005

2004

Revenues
  Revenues from real estate operations(1)
  Construction contract and other service operations revenues

  Total revenues

Expenses
  Property operating expenses(1)

 Depreciation and other amortization associated with  

real estate operations(1)

  Construction contract and other service operations expenses
  General and administrative expenses

  Total operating expenses

Operating income
Interest expense
Interest and other income
Gain on early extinguishment of debt

Income from continuing operations before equity in loss of  
  unconsolidated entities, income taxes and minority interests
Equity in loss of unconsolidated entities
Income tax expense

Income from continuing operations before minority interests
Minority interests in income from continuing operations(1)

Income from continuing operations
Discontinued operations, net of minority interests(1)(2)
Gain (loss) on sales of real estate, net(1)(3)

Net income
Preferred share dividends
Issuance costs associated with redeemed preferred shares(4)

$ 399,633
188,385

$ 365,914
41,225

$ 291,444
60,084

$ 235,956
79,234

$ 198,672
28,903

588,018

407,139

351,528

315,190

227,575

141,139

123,258

93,088

70,202

57,745

102,720
184,142
25,329

104,700
39,793
21,704

76,344
57,345
18,048

60,342
77,287
13,533

48,623
26,996
10,938

453,330

289,455

244,825

221,364

144,302

134,688
(83,646)
2,070
10,376

117,684
(85,576)
3,030
—

106,703
(72,984)
1,077
—

63,488
(147)
(201)

63,140
(7,488)

55,652
2,179
837

58,668
(16,102)
—

35,138
(224)
(569)

34,345
(3,331)

31,014
2,210
1,560

34,784
(16,068)
—

34,796
(92)
(887)

33,817
(3,742)

30,075
18,420
732

49,227
(15,404)
(3,896)

93,826
(55,979)
304
—

38,151
(88)
(668)

37,395
(4,867)

32,528
6,235
268

39,031
(14,615)
—

83,273
(43,663)
269
—

39,879
(88)
(795)

38,996
(4,997)

33,999
3,146
(113)

37,032
(16,329)
(1,813)

Net income available to common shareholders

$  42,566

$  18,716

$  29,927

$  24,416

$  18,890

Basic earnings per common share

Income from continuing operations

  Net income available to common shareholders
Diluted earnings per common share
Income from continuing operations

  Net income available to common shareholders
Weighted average common shares outstanding—basic 
Weighted average common shares outstanding—diluted

$ 
$ 

$ 
$ 

0.84
0.88

0.83
0.87
48,132
48,865

$ 
$ 

$ 
$ 

0.35
0.40

0.35
0.39
46,527
47,630

$ 
$ 

$ 
$ 

0.28
0.72

0.27
0.69
41,463
43,262

$ 
$ 

$ 
$ 

0.49
0.65

0.47
0.63
37,371
38,997

$ 
$ 

$ 
$ 

0.47
0.57

0.45
0.54
33,173
34,982

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 18

Page 19

 
 
 
 
 
 
(in thousands, except per share data and number of properties)

2008

2007

2006

2005

2004

Balance Sheet Data (as of year end):
Investment in real estate
Total assets
Debt
Total liabilities
Minority interests
Shareholders’ equity
Other Financial Data (for the year ended):
Cash flows provided by (used in):
  Operating activities
Investing activities
  Financing activities
Numerator for diluted EPS
Diluted funds from operations(5)
Diluted funds from operations per share(5)
Cash dividends declared per common share
Property Data (as of year end):
Number of properties owned(1)(6)
Total rentable square feet owned(1)(6)

$ 2,776,889
$ 3,112,867
$ 1,866,623
$ 2,041,688
$  137,865
$  933,314

$ 2,603,939
$ 2,931,853
$ 1,825,842
$ 1,979,116
$  130,095
$  822,642

$ 2,111,310
$ 2,419,601
$ 1,498,537
$ 1,629,111
$  116,187
$  674,303

$ 1,888,106
$ 2,129,759
$ 1,348,351
$ 1,442,036
$  105,210
$  582,513

$ 1,544,501
$ 1,732,026
$ 1,022,688
$ 1,111,224
98,878
$ 
$  521,924

$  181,864
$  (290,142)
90,415
$ 
$ 
42,566
$  150,401
2.64
$ 
1.43
$ 

$  137,701
$  (327,714)
$  206,728
$ 
18,716
$  125,309
2.24
$ 
1.30
$ 

$  113,151
$  (253,834)
$  137,822
29,927
$ 
98,937
$ 
1.91
$ 
1.18
$ 

$ 
95,944
$  (420,301)
$  321,320
24,416
$ 
88,801
$ 
1.86
$ 
1.07
$ 

$ 
84,494
$  (268,720)
$  188,566
18,911
$ 
76,248
$ 
1.74
$ 
0.98
$ 

238
18,462

228
17,832

170
15,050

165
13,708

143
11,765

(1)  Certain prior period amounts pertaining to properties included in discontinued operations have been reclassified to conform with the current presentation.  

These reclassifications did not affect consolidated net income or shareholders’ equity. 

(2)  Reflects income derived from three operating properties we sold in 2005, seven operating real estate properties we sold in 2006, four operating real estate properties  

we sold in 2007 and three operating real estate properties we sold in 2008 (see Note 17 to our Consolidated Financial Statements).

(3)  Reflects gain (loss) from sales of properties and unconsolidated real estate joint ventures not associated with discontinued operations.

(4)  Reflects a decrease to net income available to common shareholders pertaining to the original issuance costs recognized upon the redemption of the Series E and Series F 

Preferred Shares of beneficial interest in 2006 and the Series B Preferred Shares of beneficial interest in 2004.

(5)  For definitions of diluted funds from operations per share and diluted funds from operations and reconciliations of these measures to their comparable measures under  
generally accepted accounting principles, you should refer to the section entitled “Funds from Operations” within the section entitled “Management’s Discussion  
and Analysis of Financial Condition and Results of Operations.” 

(6)  Amounts reported reflect only wholly owned properties. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 18

Page 19

 
md&a Management’s Discussion & Analysis of Financial Condition and Results of Operations

You should refer to our Consolidated Financial 
Statements and the notes thereto and our Selected 
Financial Data table as you read this section.

This section contains “forward-looking” statements, as 
defined in the Private Securities Litigation Reform Act 
of 1995, that are based on our current expectations, 
estimates and projections about future events and 
financial trends affecting the financial condition and 
operations of our business. Forward-looking statements 
can be identified by the use of words such as “may,” 
“will,” “should,” “expect,” “estimate” or other comparable 
terminology. Forward-looking statements are inher-
ently subject to risks and uncertainties, many of which 
we cannot predict with accuracy and some of which we 
might not even anticipate. Although we believe that the 
expectations, estimates and projections reflected in such 
forward-looking statements are based on reasonable 
assumptions at the time made, we can give no assurance 
that these expectations, estimates and projections will 
be achieved. Future events and actual results may differ 
materially from those discussed in the forward-looking 
statements. Important factors that may affect these 
expectations, estimates and projections include, but 
are not limited to: 

•	 	our	ability	to	borrow	on	favorable	terms;	

•	 	general	economic	and	business	conditions,	which	
will, among other things, affect office property 
demand and rents, tenant creditworthiness, 
interest	rates	and	financing	availability;	

•	 	adverse	changes	in	the	real	estate	markets,	
including, among other things, increased 
	competition	with	other	companies;	

•	 	risks	of	real	estate	acquisition	and	development	
activities, including, among other things, risks 
that development projects may not be completed 
on schedule, that tenants may not take occupancy 
or pay rent or that development and operating 
costs	may	be	greater	than	anticipated;

•	 	risks	of	investing	through	joint	venture	structures,	
including risks that our joint venture partners may 
not fulfill their financial obligations as investors 
or may take actions that are inconsistent with 
our	objectives;	

•	 	our	ability	to	satisfy	and	operate	effectively	

under Federal income tax rules relating to real 
estate	investment	trusts	and	partnerships;

•	 	governmental	actions	and	initiatives;	and	

•	 	environmental	requirements.	

We undertake no obligation to update or supplement 
forward-looking statements.

overview

We are a specialty office real estate investment trust 
(“REIT”) that focuses primarily on strategic customer 
relationships and specialized tenant requirements in 
the United States Government, defense information 
technology and data sectors. We acquire, develop, 
manage and lease properties that are typically con-
centrated in large office parks primarily located 
 adjacent to government demand drivers and/or in 
demographically strong markets possessing growth 
opportunities. As of December 31, 2008, our invest-
ments in real estate included the following:

•	 	238	wholly	owned	operating	properties	totaling	

18.5	million	square	feet;

•	 	14	wholly	owned	properties	under	construction	

or development that we estimate will total 
approximately 1.6 million square feet upon 
completion;	

•	 	wholly	owned	land	parcels	totaling	1,611	acres	
that we believe are potentially developable into 
approximately	14.0	million	square	feet;	and

•	 	partial	ownership	interests	in	a	number	of	other	
real estate projects in operations, under con-
struction or redevelopment or held for future 
development.

Most of our revenues relating to real estate operations 
are derived from rents and property operating expense 
reimbursements earned from tenants leasing space in 
our properties. Most of our expenses relating to our 
real estate operations take the form of: (1) property 
operating costs, such as real estate taxes, utilities  
and	repairs	and	maintenance;	(2)	interest	costs;	and	
(3) depreciation and amortization associated with our 
operating properties. Much of our profitability from 
real estate operations depends on our ability to main-
tain high levels of occupancy and increasing rents, 
which is affected by a number of factors, including, 
among other things, our tenants’ ability to fulfill their 
leases obligations and their continuing space needs 
based on employment levels, business confidence and 
competition and general economic conditions in the 
markets in which we operate.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 20

Page 21

md&a continued

At December 31, 2008, our wholly owned properties were located in the following geographic regions, which are 
also our reportable segments:

Region

Baltimore/Washington Corridor (generally the Maryland counties of  
  Howard and Anne Arundel)
Northern Virginia
Suburban Baltimore, Maryland (generally the Maryland counties of 
  Baltimore and Harford) (“Suburban Baltimore”) 
Colorado Springs, Colorado (“Colorado Springs”)
Greater Philadelphia, Pennsylvania (“Greater Philadelphia”)
St. Mary’s and King George Counties (located in Maryland and Virginia)
Suburban Maryland (defined as the Maryland counties of Montgomery,
  Prince George’s and Frederick)
San Antonio, Texas (“San Antonio”)
Central New Jersey
Other

As of December 31, 2008

Operational 
Square Feet

Number of 
Properties

Occupancy 
Rate

 7,834 
 2,609 
 3,207 

 1,189 
 961 
 824 
 691 

 640 
 201 
 306 

104 
 15 
 63 

 17 
 4 
 18 
 5 

 5 
 2 
 5 

93.4%
97.4%
83.1%

94.3%
100.0%
95.2%
97.7%

100.0%
100.0%
100.0%

93.2%

  Total

18,462 

238 

During 2008, we grew our portfolio by acquiring 
three office properties totaling 247,000 square feet 
(one located in Colorado Springs and two in San 
Antonio) for $40.6 million and having seven newly 
constructed properties totaling 528,000 square feet 
become fully operational (89,000 of these square  
feet were placed into service in 2007). We also  
had 85,000 square feet placed into service in two 
 partially operational properties.

A key part of our strategy for operations and growth 
focuses on establishing and nurturing long-term relation-
ships with quality tenants and accommodating their 
multi-locational needs, particularly tenants in the 
United States Government, defense information tech-
nology and data sectors. As a result of this strategy,  
a large concentration of our revenue is derived from 
several large tenants. At December 31, 2008, 55.0% of 
our annualized rental revenue (as defined in the section 
entitled “Concentration of Operations”) from wholly 
owned properties was from our 20 largest  tenants, 
35.5% from our five largest tenants, 17.3% from our 
largest tenant, the United States Government and 
54.8% from properties with tenants in the United 
States Government, defense information technology 
and data sectors. 

In addition to owning real estate properties, we provide 
real estate-related services that include: (1) construction 
and	development	management;	(2)	property	manage-
ment;	and	(3)	heating	and	air	conditioning	services	 
and controls. The revenues and costs associated with 
these services include subcontracted costs that are 
reimbursed to us by the customer at no mark up.  
As a result, the operating margins from these opera-
tions are small relative to the revenue. We use the  
net of such revenues and expenses to evaluate the 
 performance of our service operations. 

Since the latter part of 2007, the United States and 
world economies have been in the midst of a significant 
recession, with most key economic indicators on the 
decline, including gross domestic product, consumer 
sales, housing starts and employment. This slowdown 
has had devastating effects on the capital markets, with 
declining stock prices and tightening credit availability. 
The commercial real estate industry was affected by 
these events in 2007 and 2008 and will likely be affected 
for a significant period of time. As a capital-intensive 
industry, the most uniform and immediate effect was 
the increasing difficulty in obtaining capital to fund 
growth activities, such as acquisitions and development 
costs, and debt repayments. From an operations per-
spective, we believe that the magnitude and timing of 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 20

Page 21

 
 
these effects has and will vary significantly between 
individual sectors within the industry and individual 
companies within such sectors. Real estate sectors hit 
the hardest through 2008 were primarily those that 
operate with short term revenue streams (such as 
hotels, residential rental and healthcare rental), have 
rental revenues that are highly dependent on the reve-
nue of their tenants (such as retail) or have operating 
models that are highly dependent on fees for services. 

For much of the office real estate sector, we believe 
that, since the core operations tend to be structured as 
long-term leases, the changes in the overall economy 
were not fully felt in 2008 operations since revenue 
streams generally remain in place until leases expire or 
tenants fail to satisfy lease terms. Due in large part to 
this reason, we do not believe that the economic down-
turn significantly affected the operations of our real 
estate properties in 2008. We experienced significant 
growth in our revenues from real estate operations in 
total by amounts that exceeded the growth in our 
property operating expenses from 2007 to 2008. While 
much of this increase is attributable to the growth of 
our portfolio from acquisitions and construction activ-
ities, we also experienced growth in our revenues from 
real estate operations by amounts that exceeded the 
growth in our property operating expenses for proper-
ties that were owned and 100% operational from 2007 
to 2008 (properties that we refer to collectively as 
“Same-Office Properties”). Our ability to increase 
rental rates and maintain high levels of occupancy and 
renewal rates in our portfolio contributed strongly 
towards this growth. The events in the economy did 
lead to significant reductions in interest rates, which 
contributed towards our being able to decrease interest 
expense in 2008 compared to 2007 despite having 
higher debt in place on average in 2008. 

We expect that the effects of the global downturn  
on our real estate operations will become increasingly 
evident in 2009 and 2010, and perhaps beyond. In  
the latter portion of 2008, we were observing signs of 
increased competition for tenants and downward pres-
sure on rental rates in most of our regions, which we 
expect, along with an increased intention by certain 
tenants to reduce costs through job cuts and associated 
space reductions, could adversely affect our occupancy 

and renewal rates. However, we believe that our future 
real estate operations may be affected to a lesser degree 
than many of our peers for the  following reasons:

•	 	our	expectation	of	continued	strength	in	 

demand from our customers in the United States 
Government, defense information technology 
and	data	sectors;	and

•	 	our	tenant	base	being	comprised	of	a	high	

 concentration of large, high-quality tenants  
with a small concentration of revenue from  
the finance sector.

Despite the challenges faced by us in the broader 
 capital markets, we were able to accomplish the 
 following in 2008:

•	 	we	entered	into	a	construction	loan	agreement	
with a group of lenders that provides for an 
aggregate commitment by the lenders of $225.0 
million, with a right for us to further increase the 
aggregate commitment during the term to a 
maximum of $325.0 million, subject to certain 
conditions. We refer to this loan herein as the 
Revolving	Construction	Facility;	

•	 	we	borrowed	$221.4	million	under	a	mortgage	
loan requiring interest only payments for the 
term at a variable rate of LIBOR plus 225 basis 
points (subject to a floor of 4.25%) that matures 
in 2012, and may be extended by one year at our 
option,	subject	to	certain	conditions;	

•	 	we	repaid	$279.6	million	in	debt,	excluding	

scheduled principal amortization payments and 
repayments of our Revolving Credit Facility 
(defined below) and Revolving Construction 
Facility, but including a repayment of a $37.5 
million aggregate principal amount of our 3.5% 
Exchangeable Senior Notes for $26.7 million from 
which	we	recognized	a	gain	of	$10.4	million;	

•	 	we	issued	3.7	million	common	shares	at	a	public	
offering price of $39 per share, for net proceeds 
of $139.2 million after underwriting discount but 
before	offering	expenses;	and

•	 	we	had	fixed	interest	rates	in	place	on	74.0%	of	

our debt as of December 31, 2008, including the 
effect of interest rate swaps.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 22

Page 23

md&a continued

We discuss significant factors contributing to changes 
in our net income available to common shareholders 
and diluted earnings per share over the last three years 
in the section below entitled “Results of Operations.” 
We discuss our 2008 investing and financing activities 
further in the section below entitled “Liquidity and 
Capital Resources,” along with discussions of, among 
other things, the following: 

•	 	our	cash	flows;	

•	 	how	we	expect	to	generate	cash	for	short	and	

long-term	capital	needs;	

•	 	our	off-balance	sheet	arrangements	in	place	that	

are reasonably likely to affect our financial 
condition;	

•	 	our	commitments	and	contingencies;	and

•	 	the	computation	of	our	Funds	from	Operations.

CritiCal aCCounting PoliCies 
and estimates 

Our Consolidated Financial Statements are prepared 
in accordance with generally accepted accounting 
principles in the United States of America (“GAAP”), 
which require us to make certain estimates and 
assumptions. A summary of our significant accounting 
policies is provided in Note 2 to our Consolidated 
Financial Statements. The following section is a sum-
mary of certain aspects of those accounting policies 
involving estimates and assumptions that (1) require 
our most difficult, subjective or complex judgments in 
accounting for highly uncertain matters or matters 
that are susceptible to change and (2) materially affect 
our reported operating performance or financial condi-
tion. It is possible that the use of different reasonable 
estimates or assumptions in making these judgments 
could result in materially different amounts being 
reported in our Consolidated Financial Statements. 
While reviewing this section, you should refer to  
Note 2 to our Consolidated Financial Statements, 
including terms defined therein.

Acquisitions of Real Estate

When we acquire real estate properties, we allocate 
the acquisition to numerous tangible and intangible 

components. Most of the terms in this bullet section 
are discussed in further detail in Note 2 to the 
Consolidated Financial Statements entitled “Acquisitions 
of Real Estate.” Our process for determining the alloca-
tion to these components is very complex and requires 
many estimates and assumptions. Included among 
these estimates and assumptions are the following:  
(1)	determination	of	market	rental	rates;	(2)	estimation	
of leasing and tenant improvement costs associated 
with	the	remaining	term	of	acquired	leases;	(3)	leasing	
assumptions used in determining the in-place lease 
value, if-vacant value and tenant relationship value, 
including the rental rates, period of time that it will take 
to lease vacant space and estimated tenant improvement 
and	leasing	costs;	(4)	estimation	of	the	property’s	future	
value	in	determining	the	if-vacant	value;	(5)	estimation	
of value attributable to assets such as tenant relation-
ship	values;	and	(6)	allocation	of	the	if-vacant	value	
between land and building. A change in any of the 
above key assumptions, most of which are extremely 
subjective, can materially change not only the presen-
tation of acquired properties in our Consolidated 
Financial Statements but also reported results of 
 operations. The allocation to different components 
affects the following:

•	 	the	amount	of	the	purchase	price	allocated	among	
different categories of assets and liabilities on 
our	balance	sheet;	the	amount	of	costs	assigned	
to individual properties in multiple property 
acquisitions;	and	the	amount	of	costs	assigned	 
to	individual	tenants	at	the	time	of	acquisition;	

•	 	where	the	amortization	of	the	components	appear	
over time in our Consolidated Statements of 
Operations. Allocations to the above-market or 
below-market lease component are amortized 
into rental revenue, whereas allocations to most 
of the other components (the one exception being 
the land component of the if-vacant value) are 
amortized into depreciation and amortization 
expense. As a REIT, this is important to us since 
much of the investment community evaluates our 
operating performance using non-GAAP measures 
such as funds from operations, the computation of 
which includes rental revenue but does not include 
depreciation	and	amortization	expense;	and	

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 22

Page 23

•	 	the	timing	over	which	the	items	are	recognized	

as revenue or expense in our Consolidated 
Statements of Operations. For example, for 
 allocations to the if-vacant value, the land 
 portion is not depreciated and the building 
 portion is depreciated over a longer period  
of time than the other components (generally  
40 years). Allocations to above-market or 
 below-market leases, in-place lease value and 
 tenant relationship value are amortized over sig-
nificantly shorter timeframes, and if individual 
tenants’ leases are terminated early, any unamor-
tized amounts remaining associated with those 
tenants are generally expensed upon termination. 
These differences in timing can materially affect 
our reported results of operations. In addition, 
we establish lives for tenant relationship values 
based on our estimates of how long we expect 
the respective tenants to remain in the proper-
ties;	establishing	these	lives	requires	estimates	
and assumptions that are very subjective.

Impairment of Long-Lived Assets

If events or changes in circumstances indicate that the 
carrying values of operating properties, properties in 
development or land held for future development may 
be impaired, we perform a recovery analysis based on 
the estimated undiscounted future cash flows to be 
generated from the operations of the property and from 
its eventual disposition. If the analysis indicates that 
the carrying value of the tested property is not recov-
erable from estimated future cash flows, it is written 
down to its estimated fair value and an impairment loss 
is recognized. Fair values are determined based on 
estimated future cash flows using appropriate discount 
and capitalization rates. The estimated cash flows used 
for the impairment analysis and determining the fair 
values are based on our plans for the tested property 
and our views of market and economic conditions. The 
estimates consider matters such as current and historical 
rental rates, occupancies for the tested property and 
comparable properties and recent sales data for com-
parable properties. Changes in the estimated future cash 
flows due to changes in our plans or views of market 
and economic conditions could result in recognition  
of impairment losses which, under the applicable 
accounting guidance, could be substantial.

Properties held for sale are carried at the lower of  
their carrying values (i.e., cost less accumulated depre-
ciation and any impairment loss recognized, where 
applicable) or estimated fair values less costs to sell. 
Accordingly, decisions made by us to sell certain 
 operating properties, properties in development or 
land held for development will result in impairment 
losses if carrying values of the specific properties 
exceed their estimated fair values less costs to sell.  
The estimates of fair value consider matters such as 
recent sales data for comparable properties and,  
where applicable, contracts or the results of negotia-
tions with prospective purchasers. These estimates  
are subject to revision as market conditions, and our 
assessment of such conditions, change.

Assessment of Lease Term

As discussed above, a significant portion of our 
 portfolio is leased to the United States Government, 
and the majority of those leases consist of a series of 
one-year renewal options. The applicable accounting 
guidance requires us to recognize minimum rental 
payments on a straight-line basis over the terms of each 
lease, and requires us to assess the term as including all 
periods for which failure to renew the lease imposes a 
penalty on the lessee in such amounts that a renewal 
appears, at the inception of the lease, to be reasonably 
assured. Factors to consider when determining whether 
a penalty is significant include the uniqueness of the 
purpose or location of the property, the availability  
of a comparable replacement property, the relative 
importance or significance of the property to the 
 continuation of the lessee’s line of business and the 
existence of leasehold improvements or other assets 
whose value would be impaired by the lessee vacating 
or discontinuing use of the leased property. We have 
concluded, based on the factors above, that the United 
States Government’s exercise of all of those renewal 
options is reasonably assured. Changes in these assess-
ments could result in the write-off of any recorded 
assets associated with straight-line rental revenue and 
in the acceleration of depreciation and amortization 
expense associated with costs we have incurred  
related to these leases.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 24

Page 25

md&a continued

Accounting Method for Investments

Share-Based Compensation

We generally use three different accounting methods 
to report our investments in entities: the consolidation 
method;	the	equity	method;	and	the	cost	method	 
(see Note 2 to our Consolidated Financial Statements). 
We generally use the consolidation method when we 
own most of the outstanding voting interests in an 
entity and can control its operations. In accordance 
with Financial Accounting Standards Board (“FASB”) 
Interpretation No. 46(R), “Consolidation of Variable 
Interest Entities” (“FIN 46(R)”), we also consolidate 
certain entities when control of such entities can  
be achieved through means other than voting rights 
(“variable interest entities” or “VIEs”) if we are deemed 
to be the primary beneficiary. Generally, FIN 46(R) 
applies when either (1) the equity investors (if any) 
lack one or more of the essential characteristics of a 
controlling	financial	interest;	(2)	the	equity	investment	
at risk is insufficient to finance that entity’s activities 
without	additional	subordinated	financial	support;	or	
(3) the equity investors have voting rights that are  
not proportionate to their economic interests and the 
activities of the entity involve, or are conducted on 
behalf of, an investor with a disproportionately small 
voting interest. We generally use the equity method  
of accounting when we own an interest in an entity 
and can exert significant influence over, but cannot 
control, the entity’s operations. 

In making these determinations, we typically need  
to make subjective estimates and judgments regarding 
the entity’s future operating performance, financial 
condition, future valuation and other variables that 
may affect the partners’ share of cash flow from the 
entity over time. We must consider both our and our 
partner’s ability to participate in the management of 
the entity’s operations as well as make decisions that 
allow the parties to manage their economic risks. We 
may also need to estimate the probability of different 
scenarios taking place over time and project the effect 
that each of those scenarios would have on variables 
affecting the partners’ cash flows. The conclusion 
reached as a result of this process affects whether  
or not we use the consolidation method in accounting 
for our investment or the equity method. Whether  
or not we consolidate an investment can materially 
affect our Consolidated Financial Statements. 

We issue options to purchase common shares (“options”) 
and restricted common shares (“restricted shares”) to 
many of our employees. Statement of Financial Account-
ing Standards No. 123(R), “Share-Based Payment” 
(“SFAS 123(R)”) requires us to measure the cost of 
employee services received in exchange for an award 
of equity instruments based generally on the fair value 
of	the	award	on	the	grant	date;	such	cost	should	then	be	
recognized over the period during which the employee 
is required to provide service in exchange for the award 
(generally the vesting period). We compute the grant 
date fair value of options using the Black-Scholes 
option-pricing model, which requires the following 
input	assumptions:	risk-free	interest	rate;	expected	life;	
expected	volatility;	and	expected	dividend	yield.	SFAS	
123(R) also requires that share-based compensation be 
computed based on awards that are ultimately expected 
to	vest;	as	a	result,	future	forfeitures	of	our	options	and	
restricted shares are to be estimated at the time of grant 
and revised, if necessary, in subsequent periods if actual 
forfeitures differ from those estimates. The input assump-
tions used under the Black-Scholes option-pricing model 
and the estimates used in deriving the forfeiture rates 
for options and restricted common shares are subjec-
tive and require a fair amount of judgment. As a result, 
these estimates and assumptions can affect the amount 
of expense that we recognize in our Consolidated 
Financial Statements for options and restricted shares. 

ConCentration of oPerations

We refer to the measure “annualized rental revenue”  
in various sections of the Management’s Discussion 
and Analysis of Financial Condition and Results of 
Operations section of this Annual Report. Annualized 
rental revenue is a measure that we use to evaluate the 
source of our rental revenue as of a point in time. It is 
computed by multiplying by 12 the sum of monthly 
contractual base rents and estimated monthly expense 
reimbursements under active leases as of a point in 
time. We consider annualized rental revenue to be a 
useful measure for analyzing revenue sources because, 
since it is point-in-time based, it does not contain 
increases and decreases in revenue associated with 
periods	in	which	lease	terms	were	not	in	effect;	
 historical revenue under GAAP does contain such 
fluctuations. We find the measure particularly useful 
for leasing, tenant, segment and industry analysis. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 24

Page 25

Customer Concentration of Property Operations

Our customer strategy focuses on establishing and nurturing long-term relationships with quality tenants and 
accommodating their multi-locational needs. A result of this strategy is that the source of our revenue is highly 
concentrated with certain tenants. The following schedule lists our 20 largest tenants in our portfolio of wholly 
owned properties based on percentage of annualized rental revenue:

TENANT

United States Government
Northrop Grumman Corporation(1)
Booz Allen Hamilton, Inc.
Computer Sciences Corporation(1)
L-3 Communications Holdings, Inc.(1)
Unisys Corporation(2)
General Dynamics Corporation
The Aerospace Corporation
ITT Corporation(1)
Wachovia Corporation(1)
Comcast Corporation
AT&T Corporation(1)
The Boeing Company(1)
Ciena Corporation
BAE Systems PLC(1)
The Johns Hopkins Institutions
Science Applications International Corporation
Merck & Co., Inc.(2)
Magellan Health Services, Inc.
AARP
Wyle Laboratories, Inc.
Lockheed Martin Corporation
Harris Corporation

Subtotal of 20 largest tenants
All remaining tenants

Total

Percentage of Annualized Rental Revenue 
of Wholly Owned Properties for  
20 Largest Tenants as of December 31, 

2008

17.3%
7.4%
5.2%
3.1%
2.5%
2.3%
2.0%
1.9%
1.8%
1.7%
1.7%
1.4%
1.1%
1.1%
0.8%
0.8%
0.8%
0.7%
0.7%
0.7%
N/A
N/A
N/A

55.0%
45.0%

2007

16.3%
7.4%
5.6%
3.2%
2.5%
2.5%
2.1%
1.9%
1.1%
1.9%
1.7%
1.7%
1.2%
1.0%
0.8%
0.8%
0.9%
0.8%
0.7%
N/A
0.7%
N/A
N/A

54.8%
45.2%

2006

16.3%
4.2%
6.9%
3.8%
3.0%
3.0%
2.4%
2.1%
0.8%
2.1%
N/A
3.0%
1.4%
1.2%
1.0%
N/A
1.1%
0.8%
1.0%
N/A
0.8%
1.0%
0.8%

56.7%
43.3%

100.0%

100.0%

100.0%

(1) Includes affiliated organizations and agencies and predecessor companies.

(2) Unisys Corporation (“Unisys”) subleases space to Merck & Co., Inc. (“Merck”); revenue from this subleased space is classified as Merck revenue.

We had no significant changes in these concentrations 
from December 31, 2007 to December 31, 2008. The 
United States Government increased in large part due 
to it taking occupancy of most of our newly-constructed 
square feet placed in service during the year, and 
Northrop Grumman Corporation remained unchanged 
despite our growth during the year in large part due to 
its occupancy in a property that we acquired during the 
year. Our changes in concentration from December 31, 
2006 to December 31, 2007 occurred in large part due 
to the Nottingham Acquisition (described in the section 
below	entitled	“Geographic	Concentration”);	since	none	

of our 20 largest tenants as of December 31, 2006 had 
significant leasing positions in the properties acquired, 
the transaction: (1) had a decreasing effect on the level 
of	concentration	with	those	tenants;	and	(2)	led	to	the	
addition of Comcast Corporation and Johns Hopkins 
University as being among our 20 largest tenants. 

Our customer strategy focuses in particular on tenants 
in the United States Government, defense information 
technology and data sectors. As of December 31, 2008, 
54.8% of our annualized rental revenue was from 
properties with tenants in these sectors. We believe 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 26

Page 27

 
md&a continued

that we are well positioned for future growth from 
these sectors for reasons that include the following:

•	 	our	strong	relationships	and	reputation	for	high	
service levels that we have forged over the years 
and	continue	to	emphasize;

•	 	the	proximity	of	our	properties	to	government	

demand drivers (such as military installations) in 
various regions of the country and our willing-
ness to expand to other regions where that type 
of	demand	exists;	and

•	 	the	depth	of	our	collective	team	knowledge,	
experience and capabilities in developing  
and operating secure properties that meet the 
United States Government’s Force Protection 
requirements and data centers.

We classify the revenue from our leases into sector 
groupings based solely on our knowledge of the 
 tenants’ operations in leased space. Occasionally, 
 classifications require subjective and complex 
 judgments. We do not use independent sources  
such as Standard Industrial Classification codes  
for classifying our revenue into industry groupings  
and if we did, the resulting  groupings would be 
 materially different. 

There is a certain level of risk inherent in concentrating 
such a large portion of our operations with any one 
tenant. For example, our cash flow from operations and 
financial condition would be adversely affected if our 
larger tenants fail to make rental payments to us or 
experience financial difficulties, including bankruptcy, 
insolvency or general downturn of business, or if the 
United States Government elects to terminate several of 
its leases and the affected space cannot be re-leased on 
satisfactory terms. There is also a certain level of risk 
that is inherent in concentrating such a large portion of 
our operations with so many tenants whose businesses 
are in the same economic sector. For example, a reduc-
tion in government spending for defense information 
technology activities could affect the ability of a large 
number of our tenants to fulfill lease obligations  
or decrease the likelihood that these tenants would  
renew their leases, and, in the case of the United 
States Government, a reduction in government  spending 
could result in the early termination of leases.

Most of our leases with the United States Government 
provide for a series of one-year terms or provide for 
early termination rights. The government may terminate 
its leases if, among other reasons, the United States 
Congress fails to provide funding. 

Geographic Concentration of Property Operations

Our market strategy is to concentrate our operations in select markets and submarkets where we believe we 
already possess or can achieve the critical mass necessary to maximize management efficiencies, operating 
 synergies and competitive advantages through our acquisition, property management, leasing and development 
programs. A result of this strategy is that our property positions and operations are highly concentrated in a  
small number of geographic regions. The table below sets forth the regional allocation of our annualized rental 
revenue as of the end of the last three calendar years:

Region

Baltimore/Washington Corridor
Northern Virginia
Suburban Baltimore
Colorado Springs
Suburban Maryland
St. Mary’s and King George Counties
Greater Philadelphia
San Antonio
Northern/Central New Jersey
Other

Percentage of Annualized  
Rental Revenue of Wholly Owned 
Properties as of December 31,

2008

46.7%
18.8%
13.1%
5.7%
4.0%
3.4%
2.9%
2.6%
0.6%
2.2%

2007

46.2%
19.4%
14.1%
4.0%
4.3%
3.5%
3.1%
2.1%
1.0%
2.3%

2006

51.2%
20.5%
7.5%
4.2%
4.1%
4.2%
3.7%
2.4%
2.2%
N/A

100.0%

100.0%

100.0%

Number of  
Wholly Owned Properties  
as of December 31,

2008

2007

2006

104
15
63
17
5
18
4
5
2
5

238

101
14
64
13
5
18
4
2
4
3

228

87
14
23
11
5
18
4
2
6
N/A

170

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 26

Page 27

 
In 2007, we acquired 56 operating properties totaling 
approximately 2.4 million square feet and land parcels 
totaling 187 acres in a series of transactions that we 
refer to collectively as the Nottingham Acquisition for 
an aggregate cost of $366.9 million. All of the acquired 
properties are located in Maryland, with 36 of the 
operating properties, totaling 1.6 million square feet, 
and land parcels totaling 175 acres, located in White 
Marsh, Maryland (located in the Suburban Baltimore 
region) and the remaining properties and land parcels 
located in other regions in Northern Baltimore County 
and the Baltimore/Washington Corridor. 

The most significant change in our regional allocation 
from December 31, 2007 to December 31, 2008 was 
due to newly-constructed properties placed into service 
in 2008. The most significant change in our regional 
allocation from December 31, 2006 to December 31, 
2007 occurred as a result of the Nottingham Acquisition 
which, due to the large number of properties located in 
Suburban Baltimore, significantly increased that region’s 
allocation and had a decreasing effect on other regions.

As of December 31, 2008, we had construction 
 underway on four wholly owned properties in Colorado 
Springs and three wholly owned properties in the 
Baltimore/Washington	Corridor;	we	expect	that	these	
properties will be completed and begin generating 
rental revenue between 2009 and 2010. 

There is a certain level of risk that is inherent in 
 concentrating such large portions of our operations in 
any one geographic region. For example, a decline in the 
real estate market or general economic conditions in 
the Mid-Atlantic region, the Greater Washington, D.C. 
region or the office parks in which our properties are 
located could have an adverse effect on our financial 
position, results of operations and cash flows. 

oCCuPanCy and leasing

The table below sets forth leasing information pertaining 
to our portfolio of wholly owned operating properties:

Occupancy rates at year end
  Total

 Baltimore/Washington  
  Corridor

  Northern Virginia
  Suburban Baltimore
  Colorado Springs
  Suburban Maryland
 St. Mary’s and King 
  George Counties
  Greater Philadelphia
  San Antonio

 Northern/Central  
  New Jersey

  Other 

Renewal rate of square  

 footage for scheduled lease 
expirations during year(1)

Average contractual annual  
 rental rate per square foot 
at year end(2)

December 31,

2008

2007

2006

93.2% 92.6% 92.8%

93.4% 92.6% 95.1%
97.4% 98.6% 90.9%
83.1% 84.8% 81.1%
94.3% 96.7% 92.8%
97.7% 97.8% 83.2%

95.2% 91.6% 92.1%
100.0% 100.0% 100.0%
100.0% 100.0% 100.0%

100.0% 70.8% 97.2%
100.0% 100.0% N /A

78.1% 69.1% 55.4%

$22.40

$21.36

$20.90

(1) Includes the effects of early renewals and early lease terminations.

(2) Includes estimated expense reimbursements.

As shown in the above table, the total year end 
 occupancy rate for our portfolio of wholly owned 
properties did not change significantly from 2007  
to 2008. Our renewal rate of square footage for 
 scheduled lease expirations in 2008 was somewhat 
high in comparison to previous calendar years dating 
back to 2000, when the annual renewal rates ranged 
from 55% to 76%, and averaged 68%. We believe that 
our 2008 renewal rate was positively impacted by the 
effect of a high number of early renewals during the 
year. Our average contractual annual rent per square 
foot increased 4.9% from December 31, 2007 to 
December 31, 2008 which was primarily the result  
of higher rates obtained on newly constructed space 
placed in service and space renewed or retenanted 
during the year. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 28

Page 29

 
 
 
 
 
md&a continued

We expect that the effects of the global downturn  
on our real estate operations will make our leasing 
activities increasingly challenging in 2009, 2010 and 
perhaps beyond. Most of our regions are experiencing 
decreased rates of job growth to varying extents.  
The demand for space has diminished as businesses 
downsize their space requirements, focusing on con-
taining costs and adjusting space needs in response to 
decreases in the size of their workforces. We believe 
that we will experience increased competition from 
owners of other properties willing to offer tenants 
aggressively lower rental rates or higher tenant improve-
ments terms than we may be willing to accept. As a 
result, we may find it increasingly difficult to maintain 
high levels of occupancy and tenant retention. 

We believe that the immediacy of our exposure to the 
increased challenges in the leasing environment is aided 
to a certain extent by our leases generally not being 
short-term in nature and our operating strategy of 
monitoring concentrations of lease expirations occur-
ring in any one year. Our weighted average lease term 
for wholly owned properties at December 31, 2008 was 
approximately five years, and no more than 14% of our 
annualized rental revenues at December 31, 2008 were 
scheduled to expire in any one calendar year between 
2009 and 2013. 

We also believe that our customer and market strategies 
could serve as advantages over our competitors in 
meeting some of the leasing challenges we expect  
to encounter. We believe that the United States 
Government, defense information technology and  
data sectors could still experience growth during  
these tough economic times. Much of this growth  
for us could be driven by increased government 
spending that is expected in Federal cyber security 
technology, which we believe could benefit not only 
our tenants but also our markets and submarkets. In 
addition, we believe that demand for leasing in our 
markets and submarkets will benefit from the relocation 
of military personnel to government installations in 
many of the regions in which our properties are located 
in connection with reporting by the Base Realignment 
and Closure Commission of the United States Congress 
(“BRAC”);	we	expect	to	see	an	increase	in	the	momen-
tum of these relocation activities in 2009, with greater 
activity in 2010 and 2011. Finally, we believe that 
demand in most of our markets and submarkets will  
be sustained, at least to a certain extent, based on their 
close proximity to government demand drivers such  
as Washington, D.C. and military installations. 

Set forth below is some additional information pertaining 
to our three largest regions (in terms of annualized 
rental revenue) (the sources of the overall market 
 occupancy rate information set forth below are  
reports compiled by CB Richard Ellis, Inc.):

•	 	Baltimore/Washington	Corridor:	The	93.4%	
occupancy of our properties in this region at 
December 31, 2008 exceeded the overall market 
occupancy rates for office space of 85.3% in 
Anne Arundel County and 86.1% in Howard 
County. The percentages of our annualized 
rental revenues at December 31, 2008 from this 
region scheduled to expire in each of the next 
three years follow: 15% in 2009, 13% in 2010 
and 10% in 2011. While we are experiencing 
increased competition for tenants in this region, 
we expect demand to benefit, at least to a certain 
extent, from BRAC relocations to Fort George 
G. Meade and much of the continuing growth in 
our focus sectors discussed above. 

•	 	Northern	Virginia:	The	97.4%	occupancy	of	our	
properties in this region at December 31, 2008 
exceeded the overall market occupancy rates for 
office space of 85.8% in Fairfax County and 
83.6% in Reston/Herndon. The percentages of 
our annualized rental revenues at December 31, 
2008 from this region scheduled to expire in 
each of the next three years follow: 8% in 2009, 
20% in 2010 and 4% in 2011. 

•	 	Suburban	Baltimore:	The	83.1%	occupancy	of	
our properties in this region at December 31, 
2008 was less than the overall market occupancy 
rate for office space of 87.8% in Upper Suburban 
Baltimore (which is where most of our properties 
in this region are located). The percentages of 
our annualized rental revenues at December 31, 
2008 from this region scheduled to expire in 
each of the next three years follow: 15% in 2009, 
11% in 2010 and 20% in 2011. We expect to 
experience considerable competition in this 
region. This market benefits to a certain extent 
from proximity to Washington, D.C. but not to 
the same extent as the previous two markets. 
However, we do expect some future growth in 
demand from BRAC relocations to Aberdeen 
Proving Ground. 

All of our properties in the Greater Philadelphia region 
are concentrated under three leases with Unisys that 
expire in June 2009 (Unisys subleases approximately 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 28

Page 29

20% of this space to Merck). During 2008, we entered 
into new long-term leases with Unisys and Merck for 
39% of the currently leased space. We expect to remove 
55% of the currently leased space from operations for 
redevelopment	to	occur	through	at	least	2010;	the	
removal of this space from operations will have an 
adverse effect on our results of operations until the 
redevelopment is completed and the space is leased.

We experienced increased delays in 2008 in the leasing 
of certain projects under construction that were not 
pre-leased. These delays resulted in the delay of some 
square footage under construction from becoming 
operational and also led to our deferral of certain 
 projects under development on which we were about 
to commence construction. We believe that we need 
to commence construction on properties that are not 
pre-leased to a certain extent in certain of our markets 
to enable us to meet the demand of United States 

Government and defense information technology 
 tenants that may require space meeting their needs in 
a short timeframe. In these situations, we are bearing 
the risk of our lease expectations not being met on 
such properties, which could adversely affect on our 
financial position, results of operations and cash flows.

As noted above, most of the leases with our largest 
tenant, the United States Government, provide for 
consecutive one-year terms or provide for early termi-
nation	rights;	all	of	the	leasing	statistics	set	forth	
above assume that the United States Government will 
remain in the space that they lease through the end of 
the respective arrangements, without ending consecu-
tive one-year leases prematurely or exercising early 
termination rights. We report the statistics in this 
manner since we manage our leasing activities using 
these same assumptions and believe these assumptions 
to be probable. 

The table below sets forth occupancy information  pertaining to operating properties in which we have a partial 
ownership interest:

Geographic Region

Greater Harrisburg(1)
Suburban Maryland(2)
Northern Virginia(3)

(1)  Includes 16 properties totaling 672,000 square feet.

Ownership 
Interest

20.0%
(2)
N/A

Occupancy Rates at  
December 31,

2008

89.4%
94.8%
N/A

2007

90.5%
76.2%
100.0%

2006

91.2%
47.9%
100.0%

(2)  Includes two properties totaling 97,000 operational square feet at December 31, 2008 (we had a 50% interest in 56,000 square feet and a 45% interest in 

41,000 square feet). Includes one property with 56,000 square feet in which we had a 50% interest at December 31, 2007 and 2006.

(3)  Included one property with 78,000 operational square feet at December 31, 2007 and 2006. In December 2008, this property became wholly owned. 

results of oPerations

While reviewing this section, you should refer to the 
tables in the section entitled “Selected Financial Data.” 
You should also consider the factors set forth herein 
and in Item 1A of our 2008 Annual Report on Form 
10-K that could negatively affect various aspects  
of our operations.

Revenues from Real Estate Operations  
and Property Operating Expenses

We typically view our changes in revenues from real 
estate operations and property operating expenses  
as being comprised of the following components:

•	 	changes	attributable	to	the	operations	of	

 properties owned and 100% operational through-
out the two years being compared. We define these 
as changes from “Same-Office Properties.” For 
further discussion of the concept of “operational,” 
you should refer to the section of Note 2 of the 
Consolidated Financial Statements entitled 
“Commercial	Real	Estate	Properties;”	and	

•	 	changes	attributable	to	operating	properties	

acquired during the two years being compared and 
newly-constructed properties that were placed 
into service and not 100% operational through-
out the two years being compared. We define 
these as changes from “Property Additions.” 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 30

Page 31

 
md&a continued

The tables included in this section set forth the components of our changes in revenues from real estate 
 operations and property operating expenses (dollars in thousands). These tables, and the discussion that  
follow, include results and information pertaining to properties included in continuing operations.

Changes from 2007 to 2008

Property 
Additions  
Dollar  
  Change(1)

Same-Office 
Properties

Dollar  
Change

Percentage 
Change

Revenues from real estate operations
  Rental revenue
  Tenant recoveries and other real estate operations revenue

 Total

Property operating expenses

Straight-line rental revenue adjustments included  

in rental revenue

Amortization of deferred market rental revenue

$17,859
4,045

$  5,360
7,391

$21,904

$12,751

$  7,714

$  9,973

$  1,086

$ (2,629)

$     596

$    (517)

Number of operating properties included in component category

76

162

2.0%
16.9%

4.1%

9.5%

N/A

N/A

N/A

Other
Dollar  
  Change(2)

$(973)
37

$(936)

Total

$22,246
11,473

$33,719

$ 194

$17,881

$   —

$   —

—

$ (1,543)

$       79

238

(1) Includes 59 acquired properties, 15 newly-constructed properties and two redevelopment properties placed into service.

(2)  Includes, among other things, the effects of amounts eliminated in consolidation. Certain amounts eliminated in consolidation are attributable to  

the Property Additions and Same-Office Properties.

As the table above indicates, our total increase in 
 revenues from real estate operations and property 
operating expenses from 2007 to 2008 was attribut-
able primarily to the Property Additions. 

With regard to changes in the Same-Office Properties’ 
revenues from real estate operations from 2007 to 2008:

•	 	the	increase	in	rental	revenue	included	the	

following:

	 •	 	an	increase	of	$7.1	million,	or	2.7%,	in	rental	
revenue attributable primarily to changes in 
occupancy and rental rates between the two 
periods;	partially	offset	by

	 •	 	a	decrease	of	$1.8	million,	or	79.1%,	in	net	

revenue from the early termination of leases. 

•	 	tenant	recoveries	and	other	revenue	increased	

due primarily to the increase in property operat-
ing expenses described below. While we do have 
some lease structures under which tenants pay 
for 100% of properties’ operating expenses, our 
most prevalent lease structure is for tenants to 
pay for a portion of property operating expenses 
to the extent that such expenses exceed amounts 
established in their respective leases that are based 
on historical expense levels. As a result, while 
there is an inherent direct relationship between 
our  tenant recoveries and property operating 
expenses, this relationship does not result in a 
dollar for dollar increase in tenant recoveries as 
property operating expenses increase.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 30

Page 31

 
 
 
 
The increase in the Same-Office Properties’ property 
operating expenses from 2007 to 2008 included  
the following:

•	 	an	increase	of	$3.1	million	attributable	to	direct	
miscellaneous reimbursable expenses pertaining 
to	specific	tenants;

•	 	an	increase	of	$1.8	million,	or	9.2%,	in	real	estate	
taxes, which included the effect of increased 
property value assessments in our portfolio, most 
notably an increase of $1.3 million, or 19.9%, 
attributable	to	our	Northern	Virginia	portfolio;

•	 	an	increase	of	$1.5	million,	or	13.8%,	in	costs	for	
asset and property management operations, much 
of which was due to increases in the size of our 
employee	base	supporting	such	operations;	

•	 	an	increase	of	$885,000,	or	3.5%,	in	electric	

 utilities expense, which included the effect of:  
(1) increased usage at certain properties due to 
increased	occupancy;	(2)	our	assumption	of	
responsibility for payment of utilities at certain 
properties	due	to	changes	in	lease	structures;	
and (3) rate increases that we believe are the 

result of (a) increased oil prices and (b) energy 
deregulation	in	Maryland;

•	 	an	increase	of	$814,000,	or	6.8%,	in	cleaning	

services and related supplies due in large part to 
increased contract rates and increased occupancy 
at	certain	properties;

•	 	an	increase	of	$803,000,	or	14.5%,	in	heating	
and air conditioning repairs and maintenance 
due primarily to an increase in general repair 
activity and the commencement of new service 
arrangements	at	certain	properties;

•	 	an	increase	of	$574,000,	or	248.2%,	in	bad	 
debt expense due to additional reserves on 
	tenant	receivables;

•	 	an	increase	of	$452,000,	or	59.7%,	in	exterior	
repairs and maintenance due in large part to 
additional projects undertaken for roof repairs 
and	building	caulking	and	sealing;	and

•	 	a	decrease	of	$1.5	million,	or	58.9%,	in	snow	

removal due to decreased snow and ice in most 
of our regions in 2008.

Property 
Additions 
Dollar
  Change(1)

Changes from 2006 to 2007

Same-Office Properties

Dollar 
Change

Percentage 
Change

Other 
Dollar  
  Change(2)

Total

Revenues from real estate operations
  Rental revenue
  Tenant recoveries and other real estate operations revenue

  Total

Property operating expenses

Straight-line rental revenue adjustments included in  

rental revenue

Amortization of deferred market rental revenue

Number of operating properties included in component category

$ 56,257
8,880

$ 5,092
4,238

$ 65,137

$ 9,330

$ 21,491

$ 6,872

$  3,439

$(1,621)

$ 

28

77

$     372

150

2.1%
12.0%

3.4%

7.8%

N/A

N/A

N/A

$   326
(323)

$ 61,675
12,795

$       3

$ 74,470

$1,807

$ 30,170

$     81

$  1,899

$    (114)

$ 

286

—

227

(1)  Includes 63 acquired properties, 12 newly-constructed properties and two redevelopment properties placed into service.

(2)  Includes, among other things, the effects of amounts eliminated in consolidation. Certain amounts eliminated in consolidation are attributable to the Property 

Additions and Same-Office Properties.

As the table above indicates, our total increase in revenues from real estate operations and property operating 
expenses from 2006 to 2007 was attributable primarily to the Property Additions. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 32

Page 33

 
 
 
md&a continued

•	 	an	increase	of	$701,000,	or	16.1%,	in	heating	and	
air conditioning repairs and maintenance due to 
an increase in general repair activity and the 
commencement of new service arrangements at 
certain	properties;	and

•	 	an	increase	of	$714,000,	or	8.9%,	in	repairs	and	

maintenance labor due primarily to: (1) an 
increase in labor hours due mostly to the addi-
tion of new employees to address staffing needs 
and increased labor requirements at certain 
properties	with	increased	occupancy;	and	(2)	
higher labor rates resulting from an increase in 
the underlying costs for labor. The higher labor 
rates were attributable in part to an inflationary 
trend but also were due to the increased need  
for us to employ individuals with specialized 
skills who command higher rates.

The $1.8 million increase in property operating 
expenses from 2006 to 2007 that was not attributable 
to Property Additions or Same-Office Properties 
included a $1.3 million increase associated with the 
former Fort Ritchie United States Army base in 
Cascade, Washington County, Maryland, of which  
we acquired 500 acres on October 5, 2006 and 91 
acres on November 29, 2007. While we had develop-
ment activities underway at the Fort Ritchie project  
in 2007, the $1.3 million in operating expenses was 
associated with the portions of the project held for 
future lease or development.

With regard to changes in the Same-Office Properties’ 
revenues from real estate operations from 2006 to 2007:

•	 	the	increase	in	rental	revenue	included	the	

following:

	 •	 		an	increase	of	$6.2	million,	or	2.7%,	in	 
rental revenue attributable primarily to 
changes in occupancy and rental rates 
between the two periods. Included in this 
increase was a $5.0 million increase attribut-
able to three properties ($3.8 million in  
two properties in Northern Virginia and  
$1.2 million in one property in the Baltimore/
Washington Corridor) and a $1.8 million 
decrease attributable to one property in 
Suburban	Baltimore;	partially	offset	by

	 •	 	a	decrease	of	$1.1	million,	or	35.8%,	in	net	

revenue from the early termination of leases. 

•	 	tenant	recoveries	and	other	revenue	increased	

due primarily to the increase in property operat-
ing expenses described below. 

The increase in the Same-Office Properties’ property 
operating expenses from 2006 to 2007 included  
the following:

•	 	an	increase	of	$2.9	million,	or	14.5%,	in	utilities	
due primarily to the same reasons discussed 
above	for	the	change	from	2007	to	2008;

•	 	an	increase	of	$1.6	million,	or	201.7%,	in	snow	
removal due to increased snow and ice in most  
of	our	regions	in	2007;

•	 	an	increase	of	$924,000,	or	5.5%,	in	real	estate	
taxes reflecting primarily an increase in the 
assessed value of many of our properties. 
Included in this amount was an increase of 
$241,000, or 55.8%, attributable to our Colorado 
Springs portfolio which had a number of proper-
ties	with	significantly	higher	assessed	values;

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 32

Page 33

Construction Contract and Other Service Revenues and Expenses

The table below sets forth changes in our construction contract and other service revenues and expenses  
(dollars in thousands):

Changes from 2007 to 2008

Changes from 2006 to 2007

Construction  
Contract  
Dollar  
Change

Other  
Service  
Operations  
Dollar  
Change

Total  
Dollar 
Change

Construction  
Contract 
Dollar  
Change

Other 
Service  
Operations 
Dollar  
Change

Total  
Dollar  
Change

$149,534
146,388

$(2,374)
(2,039)

$147,160
144,349

$(15,108)
(14,238)

$(3,751)
(3,314)

$(18,859)
(17,552)

Service operations
  Revenues
  Expenses

Income from service operations

$    3,146

$   (335)

$    2,811

$     (870)

$   (437)

$  (1,307)

The revenues and costs associated with these services 
include subcontracted costs that are reimbursed to us by 
the customer at no mark up. As a result, the operating 
margins from these operations are small relative to the 
revenue. We use the net of service operations revenues 
and expenses to evaluate performance. The increase  
in income from service operations from 2007 to 2008 
was due primarily to a large volume of construction 
contract activity recognized in 2008 in connection 
with three large contracts, all of which were with the 
United States Government. The decrease in income 
from service operations from 2006 to 2007 was due 
primarily to: (1) a slow down in activity on certain 
third	party		constructions	jobs;	and	(2)	a	decrease	in	
third party work for heating and air conditioning 
 controls and plumbing services due primarily to our 
decision in 2007 to limit the amount of these services 
that we  provide to third parties and, instead, focus on 
providing services predominantly for our properties. 
As evidenced in the changes set forth above, our 
 volume of construction contract activity is inherently 
subject to significant variability depending on the 
 volume and nature of projects undertaken by us 
 (primarily on behalf of  tenants), and therefore the 
increase in activity that occurred in 2008 should  
not necessarily be considered to be a trend that will 
 continue. We view our service operations as an ancil-
lary component of our overall operations that should 
continue to be a small contributor to our operating 
income relative to our real estate operations. 

Depreciation and Amortization

Our depreciation and other amortization expense 
from continuing operations increased from 2006 to 
2007 by $28.4 million, or 37.1%, due primarily to a 
$30.4 million increase attributable to the Property 
Additions. Of the increase attributable to the Property 
Additions, $22.8 million was attributable to the 
Nottingham Acquisition. When we acquire operating 
properties, a portion of the acquisition value of such 
properties is generally allocated to assets with depre-
ciable lives that are based on the lives of the underlying 
leases. Compared to other acquisitions completed by 
us in the past, the Nottingham Acquisition had a con-
siderably larger portion of the value of the operating 
properties allocated to assets with lives that are based 
on	the	lives	of	the	underlying	leases;	due	to	that	fact	
and the fact that a large number of the leases in these 
properties had lives of four years or less, much of the 
depreciation and amortization associated with these 
properties was front-loaded to the four years following 
the completion of the acquisition. This is resulting in 
increased depreciation and amortization expense from 
2007 to 2010. The net increase in depreciation and other 
amortization expense from 2006 to 2007 also included 
a decrease of $2.9 million attributable to one of the 
Same-Office Properties that had significant depreciation 
and amortization expense in 2006 associated with a 
lease that terminated in 2006.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 34

Page 35

 
 
md&a continued

Our depreciation and other amortization expense 
from continuing operations decreased from 2007  
to 2008 by $2.0 million, or 1.9%, due primarily to a 
 number of shorter lived assets becoming fully amor-
tized during or prior to the current periods, including 
assets associated with the Nottingham Acquisition. 
The effect of these decreases more than offset addi-
tional depreciation and amortization associated with 
new assets placed into service. 

General and Administrative Expenses

Our general and administrative expense increased  
by $3.6 million, or 16.7%, from 2007 to 2008, and by 
$3.7 million, or 20.3%, from 2006 to 2007. Much of 
this increase was attributable to an increase in the size 
of our employee base in response to the continued 
growth of the Company. A portion of the increase 
from 2007 to 2008 can also be attributed to costs 
associated with a number of information technology 
initiatives pursued during the year, the largest of 
which was for the implementation of an Enterprise 
Resource Planning software package.

General and administrative expenses increased as a 
percentage of operating income from 16.9% in 2006 
to 18.4% in 2007 and to 18.8% in 2008. Much of this 
trend can be attributed to the increase in the size of 
our employee base in response to the continued growth 
of the Company. We believe in 2008 that we substan-
tially completed the right-sizing of our employee  
base that was required in response to our growth and, 
therefore, expect only modest growth in general  
and administrative expense in 2009 and 2010.

Interest Expense

Our interest expense included in continuing operations 
decreased from 2007 to 2008 by $1.9 million, or 2.3%. 
This decrease included the effects of the following:

•	 	a	decrease	in	the	weighted	average	interest	rates	
of our debt from 5.8% to 5.2%, much of which 
can be attributed to decreases in the one-month 
LIBOR rate in the latter portion of 2007 and in 
2008;	partially	offset	by

•	 	an	increase	in	our	average	outstanding	debt	

 balance by 7.4% due primarily to debt incurred to 
fund our 2007 and 2008 construction activities.

Our interest expense included in continuing operations 
increased from 2006 to 2007 by $12.6 million, or 17.3%. 
This increase included the effects of the following:

•	 	a	26.1%	increase	in	our	average	outstanding	 

debt balance, resulting primarily from our 2006 
and	2007	acquisition	and	construction	activities;	
offset in part by the effects of

•	 	an	increase	in	interest	capitalized	to	construction,	
development and redevelopment projects of $4.7 
million, or 32.4%, due to increased construction, 
development	and	redevelopment	activity;	and	

•	 	a	decrease	in	our	weighted	average	interest	rates	

from 6.2% to 5.8%.

Gain on Early Extinguishment of Debt

In November 2008, we repurchased a $37.5 million 
aggregate principal amount of our 3.5% Exchangeable 
Senior Notes for $26.7 million. We recognized a gain 
of $10.4 million in connection with this repurchase.

Interest and Other Income

Included in interest and other income for 2008  
was $1.4 million in interest income associated with  
a  mortgage loan receivable into which we entered  
in August 2008, which is discussed in further detail  
in the section below entitled “Investing and Financing 
Activities During 2008.” 

Included as interest and other income for 2007  
was a $1.0 million gain recognized on the disposition  
of most of our investment in TractManager, Inc., an 
investment that we account for using the cost method 
of accounting. TractManager, Inc. is an entity that 
developed an Internet-based contract imaging system 
for sale to real estate owners and healthcare providers. 

Minority Interests

Interests in our Operating Partnership are in the  
form of preferred and common units. The line entitled 
“minority interests in income from continuing opera-
tions” includes primarily income from continuing 
operations allocated to preferred and common units 
not owned by us. Income is allocated to minority 
interest preferred unitholders in an amount equal to 
the priority return from the Operating Partnership  
to which they are entitled. Income is allocated to 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 34

Page 35

minority interest common unitholders based on the 
income earned by the Operating Partnership, after 
allocation to preferred unitholders, multiplied by  
the percentage of the common units in the Operating 
Partnership owned by those common unitholders.

As of December 31, 2008, we owned 86.2% of the 
outstanding common units and 95.8% of the outstand-
ing preferred units. The percentage of the Operating 
Partnership owned by minority interests during the last 
three years decreased in the aggregate due primarily 
to the effect of the following transactions: 

•	 	the	issuance	of	additional	units	to	us	as	we	issued	
new preferred shares and common shares during 
2006 through 2008 due to the fact that we 
receive preferred units and common units in  
the Operating Partnership each time we issue 
preferred	shares	and	common	shares;	and

•	 	the	exchange	of	common	units	for	our	common	
shares by certain minority interest holders of 
common	units;	offset	in	part	by

•	 	our	issuance	of	common	units	to	third	parties	

totaling 262,165 in 2007 and 181,097 in 2006 in 
connection	with	acquisitions;	and

•	 	the	redemption	by	us	of	the	Series	E	and	 

Series F Cumulative Redeemable Preferred Shares 
of beneficial interest, and the corresponding 
Series E and Series F Preferred Units, in 2006.

Our income from continuing operations allocated to 
minority interests increased by $4.2 million, or 124.8%, 
from 2007 to 2008 and decreased by $411,000, or 
11.0%, from 2006 to 2007. These changes are due 
 primarily to: (1) the changes in the income available  
to allocate to minority interests holders of common 
units attributable primarily to the reasons set forth 
above	for	changes	in	revenue	and	expense	items;	and	
(2) the decreasing effect of our increasing ownership 
of common units (from 81.6% at December 31, 2005 
to 86.2% at December 31, 2008).

Discontinued Operations, Net of  
Minority Interests

Our discontinued operations decreased $16.2 million, 
or 88.0%, from 2006 to 2007 due primarily to changes 
in gain from sales of real estate included in discontinued 
operations. See Note 17 to the Consolidated Financial 
Statements for a summary of the components of income 
from discontinued operations.

Adjustments to Net Income to Arrive  
at Net Income Available to  
Common Shareholders

In 2006, we recognized a $3.9 million decrease to net 
income available to common shareholders pertaining 
to the original issuance costs incurred on the Series E 
and Series F Preferred Shares of beneficial interest that 
were redeemed in 2006. 

liquidity and  
CaPital resourCes

Our primary cash requirements are for operating 
expenses, debt service, development of new properties, 
improvements to existing properties and acquisitions. 
While we may experience increasing challenges dis-
cussed elsewhere herein due to the current economic 
environment, we believe that our liquidity and capital 
resources are adequate for our near-term and longer-
term requirements. We had cash and cash equivalents 
of $6.8 million and $24.6 million at December 31, 
2008 and 2007, respectively. We maintain sufficient 
cash and cash equivalents to meet our operating cash 
requirements and short term investing and financing 
cash requirements. When we determine that the amount 
of cash and cash equivalents on hand is more than we 
need to meet such requirements, we may pay down 
our Revolving Credit Facility (defined below) or forgo 
borrowing under construction loan credit facilities  
to fund development activities.

We rely primarily on fixed-rate, non-recourse mortgage 
loans from banks and institutional lenders to finance 
most of our operating properties. We have also made 
use of the public equity and debt markets to meet our 
capital needs, principally to repay or refinance corpo-
rate and property secured debt and to provide funds 
for project development and acquisition costs. We have 
an unsecured revolving credit facility (the “Revolving 
Credit Facility”) with a group of lenders that provides 
for borrowings of up to $600 million, $191.3 million of 
which	was	available	at	December	31,	2008;	this	facility	
is available through September 2011 and may be 
extended by one year at our option, subject to certain 
conditions. In addition, as discussed in greater detail 
below, we entered into our Revolving Construction 
Facility, which provides for borrowings of up to  
$225.0 million, $143.7 million of which was available at 
December	31,	2008	to	fund	future	construction	costs;	
this facility is available until May 2011 and may be 
extended by one year at our option, subject to certain 
conditions. Selective dispositions of operating and 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 36

Page 37

md&a continued

other properties may also provide capital resources in 2009 and in future years. We are continually evaluating 
sources of capital and believe that there are satisfactory sources available for meeting our capital requirements 
without necessitating property sales. 

In our discussions of liquidity and capital resources, we describe certain of the risks and uncertainties relating to  
our business. Additional risks are described in Item 1A of our Annual Report on Form 10-K. 

Contractual Obligations

The following table summarizes our contractual  obligations as of December 31, 2008 (in thousands):

For the Years Ended December 31,

Contractual obligations(1)

2009

2010

2011

2012

2013

Thereafter

Total

Debt(2)
  Balloon payments due upon maturity
  Scheduled principal payments
Interest on debt(3)
Acquisitions of properties
New construction and development  
  contracts and obligations(4)(5)
Third-party construction and  
  development contracts(5)(6)
Capital expenditures for operating  
  properties(5)(7)
Operating leases(8)
Other purchase obligations(9)

$  93,567
10,415
76,957
—

$  64,658
9,375
73,348
—

$ 738,531
7,550
64,391
—

$ 257,524
6,076
46,752
—

$ 134,843
2,875
34,317
—

$  536,587
4,121
81,815
4,000

$ 1,825,710
40,412
377,580
4,000

79,062

171,520

3,532
604
2,500

—

—

—
339
2,500

—

—

—
126
2,451

—

—

—
15
2,396

—

—

—
—
2,309

—

—

—
—
5,232

79,062

171,520

3,532
1,084
17,388

Total contractual cash obligations

$ 438,157

$ 150,220

$ 813,049

$ 312,763

$ 174,344

$  631,755

$ 2,520,288

(1)  The contractual obligations set forth in this table generally exclude individual contracts that had a value of less than $20,000. Also excluded are contracts 
associated with the operations of our properties that may be terminated with notice of one month or less, which is the arrangement that applies to most of our 
property operations contracts.

(2)  Represents scheduled principal amortization payments and maturities only and therefore excludes a net premium of $501,000. We expect to refinance the bal-
loon payments that are due in 2009 and 2010 using primarily a combination of borrowings from our Revolving Credit Facility and proceeds from debt refi-
nancings. The principal maturities occurring in 2011 include $473.8 million that may be extended for one-year, subject to certain conditions.

(3)  Represents interest costs for debt at December 31, 2008 for the terms of such debt. For variable rate debt, the amounts reflected above used December 31, 2008 

interest rates on variable rate debt in computing interest costs for the terms of such debt. 

(4)  Represents contractual obligations pertaining to new construction, development and redevelopment activities. We expect to finance these costs primarily using 

proceeds from our Revolving Construction Facility and Revolving Credit Facility. 

(5)  Because of the long-term nature of certain construction and development contracts, some of these costs will be incurred beyond 2009.

(6)  Represents contractual obligations pertaining to projects for which we are acting as construction manager on behalf of unrelated parties who are our clients.  

We expect to be reimbursed in full for these costs by our clients. 

(7)  Represents contractual obligations pertaining to capital expenditures for our operating properties. We expect to finance all of these costs using cash flow  

from operations. 

(8)  We expect to pay these items using cash flow from operations.

(9)  Primarily represents contractual obligations pertaining to managed-energy service contracts in place for certain of our operating properties. We expect to  

pay these items using cash flow from operations.

Certain of our debt instruments require that we comply with a number of restrictive financial covenants, includ-
ing leverage ratio, minimum net worth, minimum fixed charge coverage, minimum debt service and maximum 
secured indebtedness. As of December 31, 2008, we were in compliance with these financial covenants.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 36

Page 37

 
Other Future Cash Requirements  
for Investing and Financing Activities

As of December 31, 2008, we had construction activities 
underway on ten office properties totaling 1.2 million 
square feet that were 43.3% leased, or considered 
committed to lease (including three properties owned 
through joint ventures). We estimate remaining costs 
to be incurred will total approximately $82.4 million 
upon	completion	of	these	properties;	we	expect	to	
incur these costs through 2010. We expect to fund 
these costs using primarily borrowings from our 
Revolving Construction Facility and Revolving  
Credit Facility. 

As of December 31, 2008, we had development 
 activities underway on seven new office properties 
estimated to total 767,000 square feet. We estimate 
that costs for these properties will total approximately 
$165.0 million. As of December 31, 2008, costs incurred 
on these properties totaled $17.7 million and the balance 
is expected to be incurred through 2012. We expect  
to fund most of these costs using borrowings from  
our Revolving Construction Facility. 

We had redevelopment activities underway on  
one property at December 31, 2008 and expect to 
commence redevelopment on an additional property 
in 2009. We expect to incur an aggregate of approxi-
mately $40.0 million in costs in connection with  
these projects from 2009 to 2010. 

In September 2007, the City of Colorado Springs 
announced that it had selected us to be the master 
developer for the 277-acre site located in the Colorado 
Springs Airport Business Park, known as Cresterra, 
which is located at the entrance of the Colorado 
Springs Airport and adjacent to Peterson Air Force 
Base. We are currently in the process of negotiating 
the development agreement and long-term ground 
lease with the City of Colorado Springs regarding the 
details	of	this	arrangement;	we	expect	that	the	terms	
of these agreements will be finalized in 2009. We 
expect that this business park can support potential 
development of approximately 3.5 million square feet, 
including office, retail, industrial, hospitality and flex 
space. For this project, we expect to oversee develop-
ment, construction, leasing and management and have 
a leasehold interest in buildings. 

We often use our Revolving Credit Facility initially to 
finance much of our investing and financing activities. 
We then pay down our Revolving Credit Facility using 
proceeds from long-term borrowings as attractive 

financing conditions arise and equity issuances as 
attractive equity market conditions arise. Amounts 
available under the facility are computed based on 
65% of our unencumbered asset value, as defined in 
the agreement. As discussed above, as of December 
31, 2008, the borrowing capacity under the Revolving 
Credit Facility was $600.0 million, of which $191.3 
million was available.

As previously discussed, the United States financial 
markets are experiencing extreme volatility, and credit 
markets have tightened considerably. As a result, the 
level of risk that we may not be able to obtain new 
financing for acquisitions, development activities or 
other capital requirements at reasonable terms, if at all, 
in the near future has increased. Actions taken by us 
to reduce this level of risk include the following:

•	 	we	entered	into	the	$225.0	million	Revolving	
Construction Facility in May 2008, which we 
expect to use in funding much of our future 
development	activities;

•	 	we	managed	our	debt	to	avoid	significant	con-
centrations of maturities in any particular year 
and have what we believe to be limited and man-
ageable	maturities	over	the	next	two	years;	

•	 	we	raised	$139.2	million	in	net	proceeds	from	
the issuance of common shares in September 
2008, which we used to pay down our Revolving 
Credit Facility in order to create borrowing 
capacity;	and

•	 	we	entered	into	three	new	interest	rate	swaps	to	

manage our exposure to increases in interest rates. 

We believe that we have sufficient capacity under  
our Revolving Credit Facility to satisfy our 2009 debt 
maturities. We also believe that we have sufficient 
capacity under our Revolving Construction Facility  
to fund the construction of properties that were under 
construction by year end, as well as properties expected 
to be started in 2009. We do expect to pursue a certain 
amount of new permanent and medium-term debt in 
2009;	if	we	are	successful	in	obtaining	this	debt,	we	
expect to use the proceeds to pay down our Revolving 
Credit Facility to create additional borrowing capacity 
to enable us to fund future investment opportunities. 

We found it increasingly difficult in 2008 to locate 
attractive acquisition opportunities due to a significant 
spread between seller expectations and prices that met 
our investment criteria. We are optimistic that there 
will be more opportunities for acquisitions in 2009. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 38

Page 39

md&a continued

operations benefitted from a decrease in short-term 
interest	rates;	if	short-term	interest	rates	were	to	
increase, the interest payments on our variable-rate 
debt would increase, which would have a decreasing 
effect on our cash flow from operations. These and 
other factors that could negatively affect our ability  
to generate cash flow from operations in the future  
are discussed in further detail in Item 1A of our  
2008 Annual Report on Form 10-K. 

Investing and Financing Activities  
During 2008

In 2008, we acquired three office properties totaling 
247,000 square feet and three parcels of land that  
we believe can support 1.8 million developable  
square feet for $59.8 million. These acquisitions  
were financed using primarily borrowings from  
our Revolving Credit Facility.

We had seven newly-constructed buildings totaling 
528,000 square feet (three located in Colorado Springs 
and two each in the Baltimore/Washington Corridor 
and San Antonio) become fully operational in 2008 
(89,000 of these square feet were placed into service 
in 2007). These properties were 85.6% leased or com-
mitted as of December 31, 2008. Costs incurred on 
these properties through December 31, 2008 totaled 
$84.6 million, $13.5 million of which was incurred  
in 2008. We financed the 2008 costs using primarily 
 borrowings from our Revolving Credit Facility. 

During 2008, we also placed into service 59,000 square 
feet that were redeveloped in a property located in 
Northern Virginia. Most of the costs for this space, 
which became 100% leased subsequent to December 
31, 2008, were incurred in prior years.

As discussed above, at December 31, 2008, we  
had construction activities underway on ten office 
properties totaling 1.2 million square feet that were 
43.3% leased, or considered committed to lease 
(including 85,000 square feet already placed into 
 service). Three of these properties are owned through 
consolidated joint ventures. Costs incurred on these 
properties through December 31, 2008 totaled 
approximately $174.0 million, of which approximately 
$121.3 million was incurred in 2008. The costs 
incurred in 2008 were funded using borrowings from 
our Revolving Credit Facility and Revolving 
Construction Facility and cash reserves.

Given the current economic climate, we are  
expecting that it could be more challenging in 2009  
to raise  capital through offerings of common and 
 preferred shares at favorable terms than it has been 
historically. We also expect it to be challenging to 
raise capital through the sale of properties due to a 
lack of credit availability for potential buyers. As a 
result, we expect that we would likely fund any future 
acquisition opportunities using capacity created under 
our Revolving Credit Facility from new debt. 

Operating Activities

Our cash flow from operations increased $44.2 million, 
or	32.1%,	from	2007	to	2008;	this	increase	is	attribut-
able in large part to: (1) the additional cash flow from 
operations	generated	by	our	property	additions;	and	
(2) the timing of cash flow associated with third-party 
construction projects in the current period. We expect 
to continue to use cash flow provided by operations  
to meet our short-term capital needs, including all 
property operating expenses, general and administra-
tive expenses, interest expense, scheduled principal 
amortization of debt, dividends to our shareholders, 
distributions to our minority interest holders of pre-
ferred and common units in the Operating Partnership 
and capital improvements and leasing costs. We do not 
anticipate borrowing to meet these requirements. 

As described previously, we expect that the effects of 
the global downturn on our real estate operations will 
make our leasing activities increasingly challenging in 
2009, 2010 and perhaps beyond. As a result, there 
could be an increasing likelihood as leases expire of 
our being unsuccessful in renewing tenants or renew-
ing on terms less favorable to us than the terms of the 
original leases. If a tenant leaves, we can expect to 
experience a vacancy for some period of time as well 
as higher tenant improvement and leasing costs than  
if a tenant renews. As a result, our cash flow of opera-
tions would be adversely affected if we experience a 
high volume of tenant departures at the end of their 
lease terms. While we believe that our largest tenants 
represent favorable credit risk, we believe that there 
may be an increased likelihood in the current economic 
climate	of	tenants	encountering	financial	hardships;	 
if one of our major tenants or a number of our smaller 
tenants were to experience financial difficulties, 
including bankruptcy, insolvency or general downturn 
of business, and as a result default in their lease obliga-
tions to us, our cash flow from operations would be 
adversely affected. During 2008, our cash flow from 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 38

Page 39

In 2008, we completed the formation of M Square,  
a consolidated joint venture in which we hold a 50% 
equity interest through Enterprise Campus Developer, 
LLC, another consolidated joint venture in which we 
own a 90% interest. M Square was formed to develop 
and own office properties, approved for up to approxi-
mately 750,000 square feet, located in M Square 
Research Park in College Park, Maryland. 

The table below sets forth the major components of 
our additions to the line entitled “Total Commercial 
Real Estate Properties” on our Consolidated Balance 
Sheet for 2008 (in thousands):

Construction, development  
  and redevelopment
Acquisitions
Tenant improvements on operating properties
Capital improvements on operating properties

$ 188,460
55,286
20,280(1)
11,261

$ 275,287

(1)  Tenant improvement costs incurred on newly-constructed  
properties are classified in this table as construction,  
development and redevelopment. 

In 2008, we sold three operating properties totaling 
223,000 square feet for a total of $25.3 million, result-
ing in a gain of $2.6 million. The net proceeds from 
these sales after transaction costs totaled approximately 
$25.0 million. Our approximate application of the 
 proceeds from these sales follows: $16.9 million to  
pay down borrowings under our Revolving Credit 
Facility;	$5.1	million	to	fund	an	escrow	that	was	used	
to	fund	a	subsequent	acquisition;	and	$3.0	million	 
to fund cash reserves. 

In 2008, we also completed the sale of six recently 
constructed office condominiums located in Northern 
Virginia for sale prices totaling $8.4 million in the 
aggregate, resulting in net proceeds of $7.8 million. 
We applied these proceeds to our cash operating 
reserves. We recognized an aggregate gain before 
minority interests and income taxes of $1.4 million  
on these sales. 

On August 26, 2008, we loaned $24.8 million to the 
owner of a 17-story Class A+ rental office property 
containing 471,000 square feet in Baltimore, Maryland. 
We have a secured interest in the ownership of the 
entity that owns the property and adjacent land parcels 

that is subordinate to that of a first mortgage on the 
property. The loan, which matures on August 26, 2011, 
carries a primary interest rate of 16.0%, although 
 certain additional principal fundings available under 
the loan agreement carry an interest rate of 20.0%. 
While interest is payable to us under the loan on a 
monthly basis, to the extent that the borrower does not 
have sufficient net operating cash flow (as defined in 
the agreement) to pay all or a portion of the interest 
due under the loan in a given month, such unpaid 
 portion of the interest shall be added to the loan 
 principal amount used to compute interest in the 
 following month. We are obligated to fund an aggre-
gate of up to $26.6 million under this loan, excluding 
any future compounding of unpaid interest. The 
 balance of this mortgage loan receivable was $25.8 
million at December 31, 2008. The first mortgage 
loan, which had a balance of $75.0 million at 
December 31, 2008, matures on August 9, 2009 and 
may be extended for two six-month periods, subject  
to certain conditions. If a default occurs under the 
terms of the loan with us or under the first mortgage 
loan, in order to protect our investment, we may need 
either to (1) purchase the first mortgage loan on the 
property or (2) foreclose on the ownership interest in 
the property and repay the first mortgage loan. For 
2008, most of the interest that was payable under the 
loan due to us was not paid due to the borrower having 
insufficient net operating cash flow. Due to the com-
mencement of a lease in the borrower’s property in  
the later portion of 2008, we are expecting an improve-
ment in the borrower’s net operating cash flow that 
will enable them to pay the majority of interest 
 payable under the loan for the 2009 period.

On May 2, 2008, we entered into a construction loan 
agreement with a group of lenders for which KeyBanc 
Capital Markets, Inc. acted as arranger, KeyBank 
National Association acted as administrative agent, 
Bank of America, N.A. acted as syndication agent and 
Manufacturers and Traders Trust Company acted as 
documentation	agent;	we	refer	to	this	loan	as	the	
“Revolving Construction Facility.” The construction 
loan agreement provides for an aggregate commitment 
by the lenders of $225.0 million, with a right for us  
to further increase the lenders’ aggregate commitment 
during the term to a maximum of $325.0 million, 
 subject to certain conditions. Ownership interests in 
the properties for which construction costs are being 
financed through loans under the agreement are 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 40

Page 41

md&a continued

pledged as collateral. Borrowings are generally avail-
able for properties included in this construction loan 
agreement based on 85% of the total budgeted costs 
of construction of the applicable improvements for such 
properties as set forth in the properties’ construction 
budgets, subject to certain other loan-to-value and 
debt coverage requirements. As loans for properties 
under the construction loan agreement are repaid in 
full and the ownership interests in such properties are 
no longer pledged as collateral, capacity under the 
construction loan agreement’s aggregate commitment 
will be restored, giving us the ability to obtain new 
loans for other construction properties in which we 
pledge the ownership interests as collateral. The con-
struction loan agreement matures on May 2, 2011 and 
may be extended by one year at our option, subject to 
certain conditions. The variable interest rate on each 
loan is based on one of the following, to be selected  
by us: (1) subject to certain conditions, the LIBOR rate 
for the interest period designated by us (customarily 
the one-month rate) plus 1.6% to 2.0%, as determined 
by	our	leverage	levels	at	different	points	in	time;	or	 
(2) the greater of (a) the prime rate of the lender then 
acting as agent or (b) the Federal Funds Rate, as defined 
in the construction loan agreement, plus 0.50%. Interest 
is payable at the end of each interest period (as defined 
in the agreement), and principal outstanding under each 
loan under the agreement is payable on the maturity 
date. The construction loan agreement also carries a 
quarterly fee that is based on the unused amount of 
the commitment multiplied by a per annum rate of 
0.125% to 0.20%. At December 31, 2008, $81.3 million 
was outstanding under this facility and $143.7 million 
was available to fund future development costs. 

On July 18, 2008, we borrowed $221.4 million under  
a mortgage loan requiring interest only payments for 
the term at a variable rate of LIBOR plus 225 basis 
points (subject to a floor of 4.25%). This loan facility 
has a four-year term with an option to extend by an 
additional year. We used $63.5 million of the proceeds 
from this loan to repay construction loan facilities  
that were due to mature in 2008, $11.8 million to 
repay borrowings under the Revolving Construction 
Facility, $142.0 million to repay borrowings under  
our Revolving Credit Facility and the balance to  
fund transaction costs. 

In September 2008, we issued 3.7 million common 
shares at a public offering price of $39 per share, for net 
proceeds of $139.2 million after underwriting discount 

but before offering expenses. We contributed these net 
proceeds to our Operating Partnership in exchange for 
3.7 million common units. The proceeds were then 
used to pay down our Revolving Credit Facility.

During 2008, we entered into the following interest 
rate swap agreements:

•	 	$100.0	million	notional	amount	on	October	24,	
2008 that fixes the one-month LIBOR base rate 
at 2.51% effective on November 3, 2008 and 
expiring	on	December	31,	2009;

•	 	$120.0	million	notional	amount	on	December	17,	
2008 that fixes the one-month LIBOR base rate at 
1.76% effective on January 2, 2009 and expiring 
on	May	1,	2012;	and

•	 	$100.0	million	notional	amount	on	December	29,	
2008 that fixes the one-month LIBOR base rate at 
1.975% effective on January 1, 2010 and expiring 
on May 1, 2012.

Analysis of Cash Flow Associated With 
Investing and Financing Activities

Our net cash flow used in investing activities 
decreased $37.6 million from 2007 to 2008. This 
decrease was due primarily to the following:

•	 	a	$72.5	million	decrease	in	purchases	of	and	

additions to commercial real estate due primarily 
to the completion of the Nottingham Acquisition 
in	2007;	offset	in	part	by

•	 	a	$25.3	million	mortgage	loan	receivable	
 discussed above that was funded in 2008.

Our cash flow provided by financing activities 
decreased $116.3 million from 2007 to 2008. This 
decrease was due primarily to the following:

•	 	a	$429.5	million	increase	in	balloon	payments	 
on debt due in large part to: (1) a higher level  
of	debt	refinancing	activity	in	the	current	period;	
and (2) additional debt paid down using $139.2 
million in proceeds from our issuance of common 
shares	in	September	2008;	offset	in	part	by

•	 	a	$213.2	million	increase	in	proceeds	from	

 mortgage and other loans payable due primarily 
to a higher level of debt refinancing activity in 
the	current	period;	and	

•	 	a	$134.3	million	increase	in	net	proceeds	from	our	
issuance of common shares in September 2008. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 40

Page 41

Off-Balance Sheet Arrangements

During 2008, we owned an investment in an unconsol-
idated joint venture, Harrisburg Corporate Gateway 
Partners, L.P., for which we accounted using the equity 
method of accounting. This joint venture was entered 
into in 2005 to enable us to contribute office properties 
that were previously wholly owned by us into the joint 
venture in order to partially dispose of our interest in 
the properties. We managed the joint venture’s property 
operations and any required construction projects and 
earned fees for these services in 2008. This joint ven-
ture has a two-member management committee that  
is responsible for making major decisions (as defined  
in the joint venture agreement) and we control one  
of the management committee positions. 

We and our partner receive returns in proportion  
to our investments in the joint venture. As part of  
our obligations under the joint venture arrangement, 
we agreed to indemnify the partnership’s lender  
for 80% of losses under standard nonrecourse loan 
guarantees (environmental indemnifications and 
 guarantees against fraud and misrepresentation)  
during the period of time in which we manage the 
partnership’s	properties;	we	do	not	expect	to	incur	 
any losses under these loan guarantees. 

We have distributions in excess of our investment  
in this unconsolidated joint venture of $4.8 million  
at December 31, 2008 due to our not recognizing  
gain on the contribution of properties into the joint 
venture;	we	did	not	recognize	a	gain	on	the	contribu-
tion since we have contingent obligations, as described 
above, remaining in effect as long as we continue to 
manage the joint venture’s properties that may exceed 
our proportionate interest. We recognized a loss on 
our investment in this joint venture of $203,000 in 
2008. We also realized a net cash inflow from this 
joint venture of $338,000 in 2008. In addition, we 
earned fees totaling $268,000 from the joint venture 
in 2008 for construction, asset management and 
 property management services. 

During 2008, we also owned investments in six joint 
ventures that we accounted for using the consolidation 
method of accounting. We enter into joint ventures 
such as these from time to time for reasons that 
include the following: (1) they can provide a facility  
to access new markets and investment opportunities 
while enabling us to benefit from the expertise and 
relationships	of	our	partners;	(2)	they	are	an	alternative	
source for raising capital to put towards acquisition  

or	development	activities;	and	(3)	they	can	reduce	our	
exposure to risks associated with a property and its 
activities. Our consolidated and unconsolidated joint 
ventures are discussed in Note 5 to our Consolidated 
Financial Statements, and certain commitments and 
contingencies related to these joint ventures are 
 discussed in Note 18. 

We had no other material off-balance sheet arrange-
ments during 2008.

funds from oP erations

Funds from operations (“FFO”) is defined as net 
income computed using GAAP, excluding gains (or 
losses) from sales of real estate, plus real estate-related 
depreciation and amortization, and after adjustments 
for unconsolidated partnerships and joint ventures. 
Gains from sales of newly-developed properties  
less accumulated depreciation, if any, required under 
GAAP are included in FFO on the basis that develop-
ment services are the primary revenue generating 
activity;	we	believe	that	inclusion	of	these	development	
gains is in accordance with the National Association  
of Real Estate Investment Trusts (“NAREIT”) defini-
tion of FFO, although others may interpret the 
 definition differently. 

Accounting for real estate assets using historical  
cost accounting under GAAP assumes that the value 
of real estate assets diminishes predictably over time. 
NAREIT stated in its April 2002 White Paper on 
Funds from Operations that “since real estate asset 
 values have historically risen or fallen with market 
conditions, many industry investors have considered 
presentations of operating results for real estate 
 companies that use historical cost accounting to be 
insufficient by themselves.” As a result, the concept  
of FFO was created by NAREIT for the REIT industry 
to “address this problem.” We agree with the concept 
of FFO and believe that FFO is useful to management 
and investors as a supplemental measure of operating 
performance because, by excluding gains and losses 
related to sales of previously depreciated operating 
real estate properties and excluding real estate-related 
depreciation and amortization, FFO can help one 
 compare our operating performance between periods. 
In addition, since most equity REITs provide FFO 
information to the investment community, we believe 
that FFO is useful to investors as a supplemental 
 measure for comparing our results to those of other 
equity REITs. We believe that net income is the most 
directly comparable GAAP measure to FFO.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 42

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md&a continued

Since FFO excludes certain items includable in  
net	income,	reliance	on	the	measure	has	limitations;	
 management compensates for these limitations by 
using the measure simply as a supplemental measure 
that is weighed in the balance with other GAAP  
and non GAAP measures. FFO is not necessarily an 
indication of our cash flow available to fund cash 
needs. Additionally, it should not be used as an alter-
native to net income when evaluating our financial 
performance or to cash flow from operating, investing 
and financing activities when evaluating our liquidity 
or ability to make cash distributions or pay debt 
 service. The FFO we present may not be comparable 
to the FFO presented by other REITs since they may 
interpret the current NAREIT definition of FFO 
 differently or they may not use the current NAREIT 
definition of FFO. 

Basic funds from operations (“Basic FFO”) is FFO 
adjusted to (1) subtract (a) preferred share dividends and 
(b) issuance costs associated with redeemed preferred 
shares and (2) add back GAAP net income allocated to 
common units in the Operating Partnership not owned 
by us. With these adjustments, Basic FFO represents 
FFO available to common shareholders and common 
unitholders. Common units in the Operating Partnership 
are substantially similar to our common shares and are 
exchangeable into common shares, subject to certain 
conditions. We believe that Basic FFO is useful to inves-
tors due to the close correlation of common units to 
common shares. We believe that net income is the most 
directly comparable GAAP measure to Basic FFO. Basic 
FFO	has	essentially	the	same	limitations	as	FFO;	man-
agement compensates for these limitations in essentially 
the same manner as described above for FFO.

Diluted funds from operations (“Diluted FFO”) is Basic 
FFO adjusted to add back any changes in Basic FFO 
that would result from the assumed conversion of 
securities that are convertible or exchangeable into 
common shares. However, the computation of Diluted 
FFO does not assume conversion of securities other 
than common units in the Operating Partnership that 
are convertible into common shares if the conversion 
of those securities would increase Diluted FFO per 
share in a given period. We believe that Diluted FFO 
is useful to investors because it is the numerator used 
to compute Diluted FFO per share, discussed below.  
In addition, since most equity REITs provide Diluted 
FFO information to the investment community, we 

believe Diluted FFO is a useful supplemental measure 
for comparing us to other equity REITs. We believe 
that the numerator for diluted EPS is the most directly 
comparable GAAP measure to Diluted FFO. Since 
Diluted FFO excludes certain items includable in the 
numerator to diluted EPS, reliance on the measure has 
limitations;	management	compensates	for	these	limita-
tions by using the measure simply as a supplemental 
measure that is weighed in the balance with other 
GAAP and non-GAAP measures. Diluted FFO is not 
necessarily an indication of our cash flow available to 
fund cash needs. Additionally, it should not be used  
as an alternative to net income when evaluating  
our financial performance or to cash flow from 
 operating, investing and financing activities when 
evaluating our liquidity or ability to make cash 
 distributions or pay debt service. The Diluted  
FFO that we present may not be comparable to  
the Diluted FFO presented by other REITs. 

Diluted funds from operations per share (“Diluted FFO 
per share”) is (1) Diluted FFO divided by (2) the sum 
of the (a) weighted average common shares outstanding 
during a period, (b) weighted average common units 
outstanding during a period and (c) weighted average 
number of potential additional common shares that 
would have been outstanding during a period if other 
securities that are convertible or exchangeable into 
common shares were converted or exchanged. However, 
the computation of Diluted FFO per share does not 
assume conversion of securities other than common 
units in the Operating Partnership that are convertible 
into common shares if the conversion of those securi-
ties would increase Diluted FFO per share in a given 
period. We believe that Diluted FFO per share is useful 
to investors because it provides investors with a further 
context for evaluating our FFO results in the same 
manner that investors use earnings per share (“EPS”)  
in evaluating net income available to common share-
holders. In addition, since most equity REITs provide 
Diluted FFO per share information to the investment 
community, we believe Diluted FFO per share is a 
 useful supplemental measure for comparing us to other 
equity REITs. We believe that diluted EPS is the most 
directly comparable GAAP measure to Diluted FFO 
per share. Diluted FFO per share has most of the same 
limitations	as	Diluted	FFO	(described	above);	manage-
ment compensates for these limitations in essentially 
the same manner as described above for Diluted FFO. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 42

Page 43

Our Basic FFO, Diluted FFO and Diluted FFO per share for 2004 through 2008 and reconciliations of (1) net 
income to FFO, (2) the numerator for diluted EPS to diluted FFO and (3) the denominator for diluted EPS to the 
denominator for diluted FFO per share are set forth in the following table:

(in thousands, except per share data)

2008

2007

2006

2005

2004

Net income
Add: Real estate-related depreciation and amortization
Add: Depreciation and amortization on unconsolidated  

real estate entities

Less: Depreciation and amortization allocable to minority  

$  58,668
102,772

$  34,784
106,260

$  49,227
78,631

$  39,031
62,850

$  37,032
51,371

648

666

910

182

106

For the Years Ended December 31,

interests in other consolidated entities

(270)

(188)

(163)

(114)

Less: Gain on sales of real estate, net of taxes, excluding  
  development portion(1)

Funds from operations (“FFO”)
Add: Minority interests—common units in the  
  Operating Partnership
Less: Preferred share dividends
Less: Issuance costs associated with redeemed preferred shares

Funds from Operations—basic (“Basic FFO”)
Add: Expense on dilutive share-based compensation
Add: Convertible preferred share dividends

(86)

(95)

(2,630)

(3,827)

(17,644)

(4,422)

159,188

137,695

110,961

97,527

88,328

7,315
(16,102)
—

150,401
—
—

3,682
(16,068)
—

125,309
—
—

7,276
(15,404)
(3,896)

98,937
—
—

5,889
(14,615)
—

88,801
—
—

5,659
(16,329)
(1,813)

75,845
382
21

Funds from Operations—diluted (“Diluted FFO”)

$ 150,401

$ 125,309

$  98,937

$  88,801

$  76,248

Weighted average common shares 
Conversion of weighted average common units

Weighted average common shares/units—Basic FFO
Dilutive effect of share-based compensation awards
Assumed conversion of weighted average convertible  
  preferred shares

48,132
8,107

56,239
733

46,527
8,296

54,823
1,103

41,463
8,511

49,974
1,799

37,371
8,702

46,073
1,626

33,173
8,726

41,899
1,896

—

—

—

—

134

Weighted average common shares/units—Diluted FFO

56,972

55,926

51,773

47,699

43,929

Diluted FFO per share

$ 

2.64

$ 

2.24

$ 

1.91

$ 

1.86

$ 

1.74

Numerator for diluted EPS
Add: Minority interests—common units in the  
  Operating Partnership
Add: Real estate-related depreciation and amortization
Add: Depreciation and amortization on unconsolidated  

real estate entities

Less: Depreciation and amortization allocable to minority  

$  42,566

$  18,716

$  29,927

$  24,416

$  18,911

7,315
102,772

3,682
106,260

7,276
78,631

5,889
62,850

5,659
51,371

648

666

910

182

interests in other consolidated entities

(270)

(188)

(163)

(114)

Less: Gain on sales of real estate, net of taxes, excluding  
  development portion(1)
Add: Expense on dilutive share-based compensation

(2,630)
—

(3,827)
—

(17,644)
—

(4,422)
—

106

(86)

(95)
382

Diluted FFO

$ 150,401

$ 125,309

$  98,937

$  88,801

$  76,248

Denominator for diluted EPS
Weighted average common units
Dilutive effect of share-based compensation awards

Denominator for Diluted FFO per share

48,865
8,107
—

56,972

47,630
8,296
—

55,926

43,262
8,511
—

51,773

38,997
8,702
—

47,699

34,982
8,726
221

43,929

(1)  Gains from the sale of real estate, net of taxes, that are attributable to sales of non-operating properties are included in FFO. Gains from newly-developed or  
re-developed properties less accumulated depreciation, if any, required under GAAP are also included in FFO on the basis that development services are the 
 primary revenue generating activity; we believe that inclusion of these development gains is in compliance with the NAREIT definition of FFO, although  
others may interpret the definition differently.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 44

Page 45

 
 
 
 
 
 
md&a continued

inflation

Most of our tenants are obligated to pay their share  
of a building’s operating expenses to the extent such 
expenses exceed amounts established in their leases, 
based on historical expense levels. Some of our tenants 
are obligated to pay their full share of a building’s 
operating expenses. These arrangements somewhat 
reduce our exposure to increases in such costs resulting 
from inflation. In addition, since our average lease life 
is approximately five years, we generally expect to be 
able to compensate for increased operating expenses 
through increased rental rates upon lease renewal  
or expiration.

Our costs associated with constructing buildings and 
completing renovation and tenant improvement work 
increased due to higher cost of materials. We expect to 
recover a portion of these costs through higher tenant 
rents and reimbursements for tenant improvements. 
The additional costs that we do not recover increase 
depreciation expense as projects are completed and 
placed into service.

reCent aCCounting 
PronounCements

For disclosure regarding recent accounting pronounce-
ments and the anticipated impact they will have on  
our operations, you should refer to Note 2 to our 
Consolidated Financial Statements. 

quantitative and qualitative disClosures about market risk

We are exposed to certain market risks, the most  predominant of which is change in interest rates. Increases  
in interest rates can result in increased  interest expense under our Revolving Credit Facility and our other debt 
carrying variable interest rate terms. Increases in interest rates can also result in increased interest expense when 
our debt carrying fixed interest rate terms mature and need to be refinanced. Our  capital strategy favors long-term, 
fixed-rate, secured debt over variable-rate debt to minimize the risk of short-term increases in interest rates. As of 
December 31, 2008, 94.3% of our fixed-rate debt was scheduled to mature after 2009. As of December 31, 2008, 
26.0% of our total debt had variable interest rates, including the effect of interest rate swaps. As of December 31, 
2008, the percentage of our variable-rate debt, including the effect of interest rate swaps, relative to our total 
assets was 17.2%. 

The following table sets forth our long-term debt obligations by scheduled maturity and weighted average interest 
rates at December 31, 2008 (dollars in thousands): 

For the Years Ending December 31,

2009

2010

  2011(1)

2012

2013

Thereafter

Total

Long term debt:
Fixed rate(2) 
Weighted average interest rate
Variable rate

$63,393

$74,033

$272,314

$  42,200

$137,718

$540,708

$1,130,366

6.89%

5.98%

4.30%

6.33%

5.57%

5.58%

5.40%

$40,589

$       — $473,767

$221,400

$         — $         — $   735,756

(1)  Includes amounts outstanding at December 31, 2008 of $392.5 million under our Revolving Credit Facility and $81.3 million under our Revolving 

Construction Facility that may be extended for a one-year period, subject to certain conditions.

(2)  Represents principal maturities only and therefore excludes net premiums of $501,000.

The fair market value of our debt was $1.71 billion at December 31, 2008 and $1.83 billion at December 31, 2007. 
If interest rates on our fixed-rate debt had been 1% lower, the fair value of this debt would have increased by 
$56.2 million at December 31, 2008 and $53.7 million at December 31, 2007. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 44

Page 45

 
md&a continued

We occasionally use derivative instruments such as interest rate swaps to further reduce our exposure to changes 
in interest rates. The following table sets forth information pertaining to our interest rate swap contracts in place 
as of December 31, 2008 and 2007, and their respective fair values (dollars in thousands):

Notional 
Amount

$  50,000
25,000
25,000
50,000
100,000
120,000
100,000

One-Month 
LIBOR base

5.0360%
5.2320%
5.2320%
4.3300%
2.5100%
1.7600%
1.9750%

Effective 
Date

3/28/2006
5/1/2006
5/1/2006
10/23/2007
11/3/2008
1/2/2009
1/1/2010

Expiration 
Date

3/30/2009
5/1/2009
5/1/2009
10/23/2009
12/31/2009
5/1/2012
5/1/2012

Fair Value at December 31,

2008

$   (540)
(385)
(385)
(1,449)
(1,656)
(478)
(209)

$(5,102)

2007

$   (765)
(486)
(486)
(596)
N/A
N/A
N/A

$(2,333)

Based on our variable-rate debt balances, including the effect of interest rate swap contracts in place, our interest 
expense would have increased by $4.8 million in 2008 and $3.0 million in 2007 if short-term interest rates were 
1% higher. Interest expense in 2008 was more sensitive to a change in interest rates than 2007 due primarily to 
our having a higher average variable-rate debt balance in 2008.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 46

Page 47

 
management’s report on Internal Control Over Financial Reporting

Management is responsible for establishing and 
 maintaining adequate internal control over financial 
reporting, and for performing an assessment of the 
effectiveness of internal control over financial report-
ing as of December 31, 2008. 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. Our internal 
control over financial reporting includes those policies 
and procedures that (i) pertain to the maintenance of 
records that, in reasonable detail, accurately and fairly 
reflect	the	transactions	and	dispositions	of	our	assets;	
(ii) provide reasonable assurance that transactions are 
recorded as necessary to permit preparation of finan-
cial statements in accordance with generally accepted 
accounting principles, and that our receipts and 
 expenditures are being made only in accordance  
with	authorizations	of	our	management	and	trustees;	
and (iii) provide reasonable assurance regarding preven-
tion or timely detection of unauthorized acquisition, 
use or disposition of our 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.

Management performed an assessment of the 
 effectiveness of our internal control over financial 
reporting as of December 31, 2008 based upon criteria 
in Internal Control—Integrated Framework issued by the 
Committee of Sponsoring Organizations of the 
Treadway Commission (“COSO”). Based on our assess-
ment, management determined that our internal 
 control over financial reporting was effective as of 
December 31, 2008 based on the criteria in Internal 
Control—Integrated Framework issued by the COSO. 

The effectiveness of the Company’s internal control 
over financial reporting as of December 31, 2008  
has been audited by PricewaterhouseCoopers LLP,  
an independent registered public accounting firm,  
as stated in their report which appears herein.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 46

Page 47

report of Independent Registered Public Accounting Firm

To the Board of Trustees and Shareholders of 
Corporate Office Properties Trust:

In our opinion, the accompanying consolidated 
 financial statements present fairly, in all material 
respects, the financial position of Corporate Office 
Properties Trust and its subsidiaries at December 31, 
2008 and December 31, 2007, and the results of their 
operations and their cash flows for each of the three 
years in the period ended December 31, 2008 in 
 conformity with accounting principles generally 
accepted in the United States of America. Also in  
our opinion, the Company maintained, in all material 
respects, effective internal control over financial 
reporting as of December 31, 2008, based on criteria 
established in Internal Control—Integrated Framework 
issued by the Committee of Sponsoring Organizations 
of the Treadway Commission (COSO). The Company’s 
management is responsible for these financial state-
ments, for maintaining effective internal control over 
financial reporting and for its assessment of the effec-
tiveness of internal control over financial reporting, 
included in the accompanying “Management’s Report 
on Internal Control over Financial Reporting.” Our 
responsibility is to express opinions on these financial 
statements, and on the Company’s internal control 
over financial reporting based on our integrated audits. 
We conducted our audits in accordance with the stan-
dards of the Public Company Accounting Oversight 
Board (United States). Those standards require that 
we plan and perform the audits to obtain reasonable 
assurance about whether the financial statements are 
free of material misstatement and whether effective 
internal control over financial reporting was maintained 
in all material respects. Our audits of the financial 
statements included examining, on a test basis, evidence 
supporting the amounts and disclosures in the financial 
statements, assessing the accounting principles used 
and significant estimates made by management, and 
evaluating the overall financial statement presentation. 
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 audits also included performing 
such other procedures as we considered necessary in 
the circumstances. We believe that our audits provide 
a reasonable basis for our opinions.

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 
(i) pertain to the maintenance of records that, in reason-
able detail, accurately and fairly reflect the transactions 
and	dispositions	of	the	assets	of	the	company;	(ii)	provide	
reasonable assurance that transactions are recorded as 
necessary to permit preparation of financial statements 
in accordance with generally accepted accounting 
prin ciples, and that receipts and expenditures of the 
company are being made only in accordance with 
authorizations of management and directors of the com-
pany;	and	(iii)	provide	reasonable	assurance	regarding	
prevention or timely detection of unauthorized acqui-
sition, 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.

Baltimore, Maryland 
February 27, 2009

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 48

Page 49

consolidated balance sheets

(Dollars in thousands)

ASSETS
Properties, net:
  Operating properties, net
  Projects under construction or development
  Property held for sale

  Total properties, net
Cash and cash equivalents
Restricted cash
Accounts receivable, net
Deferred rent receivable
Intangible assets on real estate acquisitions, net
Deferred charges, net 
Prepaid expenses and other assets

Total assets

LIABILITIES AND SHAREHOLDERS’ EqUITY
Liabilities:
  Mortgage and other loans payable
  3.5% Exchangeable Senior Notes
  Accounts payable and accrued expenses
  Rents received in advance and security deposits
  Dividends and distributions payable
  Deferred revenue associated with acquired operating leases
  Distributions in excess of investment in unconsolidated real estate joint venture
  Other liabilities

Total liabilities

Minority interests:
  Common units in the Operating Partnership
  Preferred units in the Operating Partnership
  Other consolidated real estate joint ventures

Total minority interests

Commitments and contingencies (Note 18)
Shareholders’ equity:

 Preferred Shares of beneficial interest with an aggregate liquidation preference  
  of $216,333 at December 31, 2008 and 2007 (Note 11)
	Common	Shares	of	beneficial	interest	($0.01	par	value;	75,000,000	 
 shares authorized, shares issued and outstanding of 51,790,442 at  
December 31, 2008 and 47,366,475 at December 31, 2007)

  Additional paid-in capital
  Cumulative distributions in excess of net income
  Accumulated other comprehensive loss

Total shareholders’ equity

Total liabilities and shareholders’ equity

See accompanying notes to consolidated financial statements.

December 31,

2008

2007

$ 2,283,806
493,083
—

$ 2,192,939
396,012
14,988

2,776,889
6,775
13,745
13,684
64,131
91,848
52,006
93,789

2,603,939
24,638
15,121
24,831
53,631
108,661
49,051
51,981

$ 3,112,867

$ 2,931,853

$ 1,704,123
162,500
93,625
30,464
25,794
10,816
4,770
9,596

$ 1,625,842
200,000
75,535
31,234
22,441
11,530
4,246
8,288

2,041,688

1,979,116

118,810
8,800
10,255

137,865

114,127
8,800
7,168

130,095

81

81

518
1,091,890
(154,426)
(4,749)

474
950,615
(126,156)
(2,372)

933,314

822,642

$ 3,112,867

$ 2,931,853

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 48

Page 49

 
	
 
consolidated statements of operations

(Dollars in thousands, except per share data)

Revenues
  Rental revenue
  Tenant recoveries and other real estate operations revenue
  Construction contract revenues
  Other service operations revenues

  Total revenues

Expenses
  Property operating expenses

 Depreciation and other amortization associated with  

real estate operations

  Construction contract expenses
  Other service operations expenses
  General and administrative expenses

  Total operating expenses

Operating income
Interest expense
Interest and other income
Gain on early extinguishment of debt

Income from continuing operations before equity in loss of  
  unconsolidated entities, income taxes and minority interests
Equity in loss of unconsolidated entities
Income tax expense 

Income from continuing operations before minority interests
Minority interests in income from continuing operations
  Common units in the Operating Partnership
  Preferred units in the Operating Partnership
  Other

Income from continuing operations
Discontinued operations, net of minority interests and taxes

Income before gain on sales of real estate
Gain on sales of real estate, net of minority interests and taxes

Net income 
Preferred share dividends
Issuance costs associated with redeemed preferred shares

For the Years Ended December 31, 

2008

2007

2006

$ 336,942
62,691
186,608
1,777

$ 314,696
51,218
37,074
4,151

$ 253,021
38,423
52,182
7,902

588,018

407,139

351,528

141,139

123,258

93,088

102,720
182,111
2,031
25,329

104,700
35,723
4,070
21,704

76,344
49,961
7,384
18,048

453,330

289,455

244,825

134,688
(83,646)
2,070
10,376

117,684
(85,576)
3,030
—

106,703
(72,984)
1,077
—

63,488
(147)
(201)

35,138
(224)
(569)

34,796
(92)
(887)

63,140

34,345

33,817

(6,772)
(660)
(56)

55,652
2,179

57,831
837

58,668
(16,102)
—

(2,793)
(660)
122

31,014
2,210

33,224
1,560

34,784
(16,068)
—

(3,218)
(660)
136

30,075
18,420

48,495
732

49,227
(15,404)
(3,896)

Net income available to common shareholders

$  42,566

$  18,716

$  29,927

Basic earnings per common share

Income from continuing operations

  Discontinued operations

  Net income available to common shareholders

Diluted earnings per common share
Income from continuing operations

  Discontinued operations

  Net income available to common shareholders

Dividends declared per common share

See accompanying notes to consolidated financial statements.

$ 

0.84
0.04

$ 

0.35
0.05

$ 

0.28
0.44

$ 

0.88

$ 

0.40

$ 

0.72

$ 

0.83
0.04

$ 

0.35
0.04

$ 

0.27
0.42

$ 

0.87

$ 

0.39

$ 

0.69

$  1.425

$  1.300

$  1.180

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 50

Page 51

 
 
 
 
 
 
consolidated statements of shareholders’ equity

(Dollars in thousands)

Balance at December 31, 2005  

Preferred 
Shares 

Common 
Shares

Additional 
Paid-in 
Capital

Cumulative 
Distributions 
in Excess of 
Net Income

Accumulated 
Other 
Comprehensive 
Loss

Total

(39,927,316 common shares outstanding)

$  67

$ 399

$ 

650,226

$   (67,697)

$    (482)

$  582,513

Conversion of common units to common shares  

(245,793 shares)

Common shares issued to the public (2,000,000 shares)
Series J Preferred Shares issued to the public  

(3,390,000 shares)

Series E Preferred Shares redemption
Series F Preferred Shares redemption
Decrease in fair value of derivatives
Reversal of unearned restricted common share grants  
  upon adoption of SFAS 123(R)
Exercise of share options (581,932 shares)
Share-based compensation
Adjustments to minority interests resulting  
from changes in ownership of Operating  

  Partnership by COPT
Increase in tax benefit from share-based compensation
Net income
Dividends

Balance at December 31, 2006  

(42,897,639 common shares outstanding)

Conversion of common units to common shares  

(554,221 shares)

Common shares issued in connection with acquisition of 
  properties, net of transaction costs (3,161,000 shares)
Series K Preferred Shares issued in connection with  
 acquisition of properties, net of transaction costs 
(531,667 shares)

Exercise of share options (620,858 shares)
Share-based compensation
Restricted common share redemptions (6,685 shares)
Adjustments to minority interests resulting  
from changes in ownership of Operating  

  Partnership by COPT
Decrease in fair value of derivatives
Net income
Dividends

Balance at December 31, 2007  

(47,366,475 common shares outstanding)

Conversion of common units to common shares  

(258,917 shares)

Common shares issued to the public (3,737,500 shares)
Exercise of share options (180,239 shares)
Share-based compensation
Restricted common share redemptions (61,258 shares)
Adjustments to minority interests resulting  
from changes in ownership of Operating  

  Partnership by COPT
Decrease in fair value of derivatives
Increase in tax benefit from share-based compensation
Net income
Dividends

Balance at December 31, 2008  

—
—

34
(11)
(14)
—

—
—
—

—
—
—
—

76

—

—

5
—
—
—

—
—
—
—

81

—
—
—
—
—

—
—
—
—
—

3
20

—
—
—
—

1
6
—

—
—
—
—

11,075
82,413

81,823
(28,739)
(35,611)
—

1,944
6,761
3,833

(16,255)
562
—
—

—
—

—
—
—
—

—
—
—

—
—
49,227
(65,071)

—
—

—
—
—
(211)

—
—
—

—
—
—
—

11,078
82,433

81,857
(28,750)
(35,625)
(211)

1,945
6,767
3,833

(16,255)
562
49,227
(65,071)

429

758,032

(83,541)

(693)

674,303

6

32

—
6
1
—

—
—
—
—

25,402

156,619

26,562
7,470
6,642
(351)

—

—

—
—
—
—

—

—

—
—
—
—

(29,761)
—
—
—

—
—
34,784
(77,399)

—
(1,679)
—
—

25,408

156,651

26,567
7,476
6,643
(351)

(29,761)
(1,679)
34,784
(77,399)

474

950,615

(126,156)

(2,372)

822,642

3
37
2
2
—

—
—
—
—
—

7,505
138,886
2,833
9,034
(1,320)

—
—
—
—
—

—
—
—
—
—

(16,716)
—
1,053
—
—

—
—
—
58,668
(86,938)

—
(2,377)
—
—
—

7,508
138,923
2,835
9,036
(1,320)

(16,716)
(2,377)
1,053
58,668
(86,938)

(51,790,442 common shares outstanding)

$ 81

$ 518

$ 1,091,890

$(154,426)

$(4,749)

$  933,314

See accompanying notes to consolidated financial statements.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 50

Page 51

 
 
 
 
 
 
 
 
 
 
 
 
consolidated statements of cash flows

(Dollars in thousands)

Cash flows from operating activities
  Net income

 Adjustments to reconcile net income to net cash provided by operating activities:
  Minority interests
  Depreciation and other amortization
  Amortization of deferred financing costs
  Amortization of deferred market rental revenue
  Gain on sales of real estate
  Other gain on sales
  Gain on redemption of 3.5% Exchangeable Senior Notes
  Share-based compensation
  Excess income tax benefits from share-based compensation
 Other

  Changes in operating assets and liabilities:
Increase in deferred rent receivable

  Decrease (increase) in accounts receivable

Increase in restricted cash and prepaid and other assets
 Increase (decrease) in accounts payable, accrued expenses,  
  and other liabilities
(Decrease) increase in rents received in advance and security deposits

  Net cash provided by operating activities

Cash flows from investing activities
  Purchases of and additions to commercial real estate properties
  Proceeds from sales of properties
  Proceeds from sale of non-real estate investment
  Mortgage loan receivable funded
  Proceeds from sale of unconsolidated real estate joint venture
  Acquisition of partner interests in consolidated joint ventures
  Leasing costs paid

(Increase) decrease in restricted cash associated with investing activities

  Purchases of furniture, fixtures and equipment
  Other

  Net cash used in investing activities

Cash flows from financing activities
  Proceeds from mortgage and other loans payable
  Proceeds from 3.5% Exchangeable Senior Notes
  Repayments of debt
  Balloon payments
  Scheduled principal amortization

  Repurchase of 3.5% Exchangeable Senior Notes
  Deferred financing costs paid
  Net proceeds from issuance of common shares
  Net proceeds from issuance of preferred shares
  Redemption of preferred shares
  Dividends paid
  Distributions paid
  Excess income tax benefits from share-based compensation
  Restricted share redemptions
  Other

  Net cash provided by financing activities

Net (decrease) increase in cash and cash equivalents
Cash and cash equivalents
  Beginning of period

  End of period

See accompanying notes to consolidated financial statements.

For the Years Ended December 31, 

2008

2007

2006

$ 

58,668 $  34,784 $  49,227

8,147
104,968
3,955
(2,064)
(4,208)
(49)
(10,376)
9,036
(1,053)
(999)

4,220
107,625
3,676
(1,985)
(6,979)
(1,033)
—
6,643
—
(546)

7,800
80,074
2,981
(1,904)
(17,920)
—
—
3,833
(562)
(157)

(10,594)
11,128
(15,061)

(11,988)
1,544
(5,040)

(10,004)
(10,844)
(7,098)

31,136
(770)

(3,250)
10,030

13,544
4,181

181,864

137,701

113,151

(279,959)
33,412
91
(25,251)
—
(115)
(7,670)
(842)
(3,581)
(6,227)

(352,427)
21,684
2,526
—
—
(1,262)
(12,182)
16,018
(1,663)
(408)

(282,099)
46,704
—
—
1,524
(5,250)
(10,480)
5,260
(8,109)
(1,384)

(290,142)

(327,714)

(253,834)

1,080,999
—

867,842

673,176
— 200,000

(988,945)
(13,668)
(26,890)
(6,461)
141,758
—
—
(83,753)
(12,002)
1,053
(1,320)
(356)

(743,274)
(559,467)
(19,316)
(19,928)
—
—
(6,605)
(4,171)
89,202
7,446
81,857
—
— (64,375)
(62,845)
(10,422)
562
—
(138)

(74,277)
(11,188)
—
(351)
822

90,415

206,728

137,822

(17,863)

16,715

(2,861)

24,638

7,923

10,784

$ 

6,775 $  24,638 $ 

7,923

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 52

Page 53

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
notes to consolidated financial statements

(Dollars in thousands, except per share data)

1. organiZation and business

Corporate Office Properties Trust (“COPT”) and 
 subsidiaries (collectively, the “Company”) is a fully-
integrated and self-managed real estate investment 
trust (“REIT”) that focuses primarily on strategic 
 customer relationships and specialized tenant require-
ments in the United States Government, defense 
 information technology and data sectors. We acquire, 
develop, manage and lease properties that are typically 
concentrated in large office parks primarily located 
adjacent to government demand drivers and/or in 
demographically strong markets possessing growth 
opportunities. As of December 31, 2008, our invest-
ments in real estate included the following:

•	 	238	wholly	owned	operating	properties	totaling	

18.5	million	square	feet;

•	 	14	wholly	owned	properties	under	construction	or	
development that we estimate will total approxi-
mately	1.6	million	square	feet	upon	completion;	

•	 	wholly	owned	land	parcels	totaling	1,611	acres	
that we believe are potentially developable into 
approximately	14.0	million	square	feet;	and

•	 	partial	ownership	interests	in	a	number	of	 

other real estate projects in operations, under 
construction or redevelopment or held for  
future development.

We conduct almost all of our operations through our 
operating partnership, Corporate Office Properties, L.P. 
(the “Operating Partnership”), for which we are the 
managing general partner. The Operating Partnership 
owns real estate both directly and through subsidiary 
partnerships and limited liability companies (“LLCs”). 
A summary of our Operating Partnership’s forms of 
ownership and the percentage of those ownership 
forms owned by COPT as of December 31, 2008  
and 2007 follows:

Common Units
Series G Preferred Units
Series H Preferred Units
Series I Preferred Units
Series J Preferred Units
Series K Preferred Units

December 31,

2008

2007

86% 85%
100% 100%
100% 100%

0%

0%

100% 100%
100% 100%

Three of our trustees controlled, either directly or 
through ownership by other entities or family members, 
an additional 12% of the Operating Partnership’s 
 common units. 

In addition to owning real estate, the Operating 
Partnership also owns 100% of a number of entities 
that provide real estate services such as property 
 management, construction and development and 
 heating and air conditioning services primarily for  
our properties but also for third parties.

2.  summary of signifiCant 

 aCCounting PoliCies

Basis of Presentation

The consolidated financial statements include the 
accounts of COPT, the Operating Partnership, their 
subsidiaries and other entities in which we have a 
majority voting interest and control. We also consoli-
date certain entities when control of such entities can 
be achieved through means other than voting rights 
(“variable interest entities” or “VIEs”) if we are deemed 
to be the primary beneficiary of such entities. We 
eliminate all significant intercompany balances and 
transactions in consolidation. 

We use the equity method of accounting when we 
own an interest in an entity and can exert significant 
influence over the entity’s operations but cannot control 
the entity’s operations. We use the cost method of 
accounting when we own an interest in an entity and 
cannot exert significant influence over its operations. 

Use of Estimates in the Preparation  
of Financial Statements

We make estimates and assumptions when preparing 
financial statements under generally accepted account-
ing principles (“GAAP”). These estimates and assump-
tions affect various matters, including:

•	 	the	reported	amounts	of	assets	and	liabilities	in	
our Consolidated Balance Sheets at the dates of 
the	financial	statements;	

•	 	the	disclosure	of	contingent	assets	and	liabilities	

at	the	dates	of	the	financial	statements;	and	

•	 	the	reported	amounts	of	revenues	and	expenses	
in our Consolidated Statements of Operations 
during the reporting periods. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 52

Page 53

 
Significant estimates are inherent in the presentation of 
our financial statements in a number of areas, including 
the evaluation of the collectability of accounts and 
notes receivable, the allocation of real estate acquisi-
tion costs, the determination of estimated useful lives 
of assets, the evaluation of impairment of long-lived 
assets and the level of expense recognized in connec-
tion with share-based compensation. Actual results 
could differ from these and other estimates. 

Acquisitions of Real Estate

We allocate the purchase price of acquired properties 
to tangible and identified intangible assets based on 
their relative fair values at the date of acquisition. In 
making estimates of fair values for purposes of allocating 
a purchase price, we use a number of sources, including 
independent appraisals that may be obtained in connec-
tion with the acquisition or financing of the respective 
property and other market data. We allocate the costs 
of real estate acquisitions to the following components:

•	 	properties	based	on	a	valuation	of	the	acquired	
property performed with the assumption that  
the property is vacant upon acquisition (the  
“if-vacant value”). The if-vacant value is allocated 
between land, buildings, tenant improvements 
and equipment based on our estimates of the 
	relative	fair	values;

•	 	above-market	and	below-market	lease	intangible	
assets or liabilities 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 received pursuant to the in-place leases  
and (ii) our estimate of fair market lease rates  
for the corresponding space, measured over a 
period equal to the remaining non-cancelable 
term of the lease (including those under bargain 
renewal options). The capitalized above- and 
below-market lease values are amortized as 
adjustments to rental revenue over the remaining 
terms of the respective leases (including periods 
under	bargain	renewal	options);

•	 	in-place	lease	value	based	on	our	estimates	of	
carrying costs during the expected lease-up 
 periods and costs to execute similar leases. Our 
estimate of carrying costs includes real estate 
taxes, insurance and other operating expenses 
and lost rentals during the expected lease-up 
periods considering current market conditions. 

Our estimate of costs to execute similar leases 
includes leasing commissions, legal and other 
related	costs;	

•	 	tenant	relationship	value	based	on	our	evaluation	
of the specific characteristics of each tenant’s 
lease and our overall relationship with that 
respective tenant. Characteristics we consider in 
determining these values include the nature and 
extent of our existing business relationships with 
the tenant, growth prospects for developing new 
business with the tenant, the tenant’s credit 
 quality and expectations of lease renewals, 
among	other	factors;	and	

•	 	market	concentration	premium	based	on	our	

estimate of the additional amount that we pay  
for a property over the fair value of assets in 
connection with our strategy of increasing our 
presence in regional submarkets. 

Properties

We report properties to be developed or held and  
used in operations at our depreciated cost, reduced for 
impairment losses, where appropriate. The amounts 
reported for our properties include our costs of:

•	 acquisitions;	

•	 development	and	construction;	

•	 building	and	land	improvements;	and	

•	 tenant	improvements	paid	by	us.

We capitalize interest expense, real estate taxes,  
direct internal labor (including allocable overhead 
costs) and other costs associated with real estate 
undergoing construction and development activities  
to the cost of such activities. The preconstruction 
stage of development of an operating property (or  
an expansion of an existing property) includes efforts 
and related costs to secure land control and zoning, 
evaluate feasibility and complete other initial tasks 
which are essential to development. We continue to 
capitalize these costs while construction and develop-
ment activities are underway until a property becomes 
“operational,” which occurs upon the earlier of when 
leases commence on space or one year after the cessa-
tion of major construction activities. When leases 
commence on portions of a newly-constructed 
 property’s space in the period prior to one year  
from the cessation of major construction activities,  
we consider that property to be “partially operational.” 
When a property is partially operational, we allocate 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 54

Page 55

notes continued

the costs associated with the property between the 
portion that is operational and the portion under 
 construction. We start depreciating newly-constructed 
properties as they become operational. 

We depreciate our assets evenly over their estimated 
useful lives as follows:

•	 	Buildings	and		

10–40	years 

building improvements

•	 	Land	improvements	

10–20	years

•	 	Tenant	improvements		
on operating properties

•	 	Equipment	and		

personal property

Related	lease	terms 

3–10	years 

If events or circumstances indicate that a property  
to be held and used may be impaired, we perform a 
recoverability analysis based on the estimated undis-
counted cash flows to be generated by the property.  
If the analysis indicates that the carrying value of the 
property is not recoverable from future cash flows, the 
property is written down to fair value and an impair-
ment loss is recognized. Fair values are determined 
based on appraisals and/or estimated future cash flows 
using appropriate discount and capitalization rates. 

When we determine that a real estate asset will be held 
for sale, we discontinue the recording of depreciation 
expense of the asset and estimate the sales price, net  
of	selling	costs;	if	we	then	determine	that	the	estimated	
sales price, net of selling costs, is less than the net book 
value of the asset, we recognize an impairment loss 
equal to the difference and reduce the carrying 
amounts of assets.

When we sell an operating property, or determine that 
an operating property is held for sale, and determine 
that we have no significant continuing involvement in 
such property, we classify the results of operations for 
such property as discontinued operations. Interest 
expense that is specifically identifiable to properties 
included in discontinued operations is used in the 
computation of interest expense attributable to dis-
continued operations. When properties classified as 
discontinued operations are included in computations 
that determine the amount of our borrowing capacity 
under certain debt instruments (including our Revolving 
Credit Facility), we allocate a portion of such debt 
instruments’	interest	expense	to	discontinued	operations;	
we compute this allocation based on the percentage 
that the related properties represent of all properties 

included in determining the amount of our borrowing 
capacity under such debt instruments.

We expense property maintenance and repair costs 
when incurred. 

Sales of Interests in Real Estate

We recognize gains from sales of interests in real 
estate using the full accrual method, provided that 
various criteria relating to the terms of sale and any 
subsequent involvement by us with the real estate sold 
are met. We recognize gains relating to transactions 
that do not meet the requirements of the full accrual 
method of accounting when the full accrual method  
of accounting criteria are met.

Cash and Cash Equivalents

Cash and cash equivalents include all cash and liquid 
investments that mature three months or less from when 
they are purchased. Cash equivalents are reported at 
cost, which approximates fair value. We maintain our 
cash in bank accounts in amounts that may exceed 
Federally insured limits at times. We have not experi-
enced any losses in these accounts in the past and 
believe that we are not exposed to significant credit 
risk because our accounts are deposited with major 
financial institutions.

Accounts Receivable 

Our accounts receivable are reported net of an 
 allowance for bad debts of $1,455 at December 31, 
2008 and $448 at December 31, 2007. We use judg-
ment in estimating the uncollectability of our accounts 
receivable based primarily upon the payment history 
and credit status of the entities associated with the 
individual accounts.

Revenue Recognition

We recognize minimum rental revenue on a straight-line 
basis over the non-cancelable term of tenant leases. The 
non-cancelable term of a lease includes periods when  
a tenant: (1) may not terminate its lease obligation 
early;	or	(2)	may	terminate	its	lease	obligation	early	in	
exchange for a fee or penalty that we consider material 
enough such that termination would not be probable. 
We report the amount by which our minimum rental 
revenue recognized on a straight-line basis under 
leases exceeds the contractual rent billings associated 
with such leases as deferred rent receivable on our 
Consolidated Balance Sheets. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 54

Page 55

	
	
	
	
We recognize tenant recovery revenue in the same 
periods in which we incur the related expenses. Tenant 
recovery revenue includes payments from tenants as 
reimbursement for property taxes, utilities and other 
property operating expenses.

We recognize fees received for lease terminations  
as revenue and write off against such revenue any  
(1) deferred rents receivable and (2) deferred revenue 
and intangible assets that are amortizable into rental 
revenue	associated	with	the	leases;	the	resulting	net	
amount is the net revenue from the early termination 
of the leases. When a tenant’s lease for space in a 
property is terminated early but the tenant continues 
to lease such space under a new or modified lease in 
the property, the net revenue from the early termina-
tion of the lease is generally recognized evenly over 
the remaining life of the new or modified lease in  
place on that property.

We recognize fees for services provided by us  
once services are rendered, fees are determinable and 
 collectability is assured. We recognize revenue under 
construction contracts using the percentage of com-
pletion method when the revenue and costs for such 
contracts	can	be	estimated	with	reasonable	accuracy;	
when these criteria do not apply to a contract, we 
 recognize revenue on that contract using the com-
pleted contract method. Under the percentage of 
completion method, we recognize a percentage of the 
total estimated revenue on a contract based on the cost 
of services provided on the contract as of a point in time 
relative to the total estimated costs on the contract. 

Intangible Assets and Deferred Revenue  
on Real Estate Acquisitions

We capitalize intangible assets and deferred revenue 
on real estate acquisitions as described in the section 
above entitled “Acquisitions of Real Estate.” We amortize 
the intangible assets and deferred revenue as follows:

•	 	Above-	and		

Related	lease	terms 

below-market leases 

•	 	In-place	lease	assets	

Related	lease	terms

•	 	Tenant	relationship	value	

	Estimated	period	 
of time that tenant 
will lease space  
in property

•	 	Market	concentration		

40	years 

premium 

We recognize the amortization of acquired above-market 
and below-market leases as adjustments to rental reve-
nue;	we	refer	to	this	amortization	as	amortization	of	
deferred market rental revenue. We recognize the 
amortization of other intangible assets on real estate 
acquisitions as amortization expense.

Deferred Charges

We defer costs that we incur to obtain new tenant 
leases or extend existing tenant leases. We amortize 
these costs evenly over the lease terms. When tenant 
leases are terminated early, we expense any unamortized 
deferred leasing costs associated with those leases. 

We also defer costs for long-term financing arrangements 
and recognize these costs as interest expense over the 
related loan terms on a straight-line basis, which approxi-
mates the amortization that would occur under the 
effective interest method of amortization. We expense 
any unamortized loan costs when loans are retired early. 

When the costs of acquisitions exceed the fair value of 
tangible and identifiable intangible assets and liabilities, 
we record goodwill in connection with such acquisi-
tions. We test goodwill annually for impairment and  
in interim periods if certain events occur indicating 
that the carrying value of goodwill may be impaired. 
We recognize an impairment loss when the discounted 
expected future cash flows associated with the related 
reporting unit are less than its unamortized cost. 

Derivatives

We are exposed to the effect of interest rate changes 
in the normal course of business. We use interest rate 
swap, interest rate cap and forward starting swap 
agreements in order to attempt to reduce the impact 
of such interest rate changes. Interest rate differentials 
that arise under interest rate swap and interest rate cap 
contracts are recognized in interest expense over the 
life of the respective contracts. Interest rate differen-
tials that arise under forward starting swaps are recog-
nized in interest expense over the life of the respective 
loans for which such swaps are obtained. We do not use 
such derivatives for trading or speculative purposes. 
We manage counter-party risk by only entering into 
contracts with major financial institutions based upon 
their credit ratings and other risk factors. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 56

Page 57

	
	
	
	
notes continued

The Operating Partnership has 352,000 Series I 
Preferred Units issued to an unrelated party that have 
a liquidation preference of $25.00 per unit, plus any 
accrued and unpaid distributions of return thereon  
(as described below), and may be redeemed for cash 
by the Operating Partnership at our option any time 
after September 22, 2019. The owner of these units is 
entitled to a priority annual cumulative return equal  
to 7.5% of their liquidation preference through 
September	22,	2019;	the	annual	cumulative	preferred	
return increases for each subsequent five-year period, 
subject to certain maximum limits. These units are con-
vertible into common units on the basis of 0.5 common 
units	for	each	Series	I	Preferred	Unit;	the	resulting	
common units would then be exchangeable for common 
shares in accordance with the terms of the Operating 
Partnership’s agreement of limited partnership.

Earnings Per Share (“EPS”)

We present both basic and diluted EPS. We compute 
basic EPS by dividing net income available to common 
shareholders by the weighted average number of 
 common shares outstanding during the year. Our 
 computation of diluted EPS is similar except that:

•	 	the	denominator	is	increased	to	include:	(1)	the	

weighted average number of potential additional 
common shares that would have been outstanding 
if securities that are convertible into our common 
shares	were	converted;	and	(2)	the	effect	of	dilu-
tive potential common shares outstanding during 
the period attributable to share-based compensa-
tion	using	the	treasury	stock	method;	and

•	 	the	numerator	is	adjusted	to	add	back	any	

 convertible preferred dividends and any other 
changes in income or loss that would result from 
the assumed conversion into common shares  
that we added to the denominator. 

We recognize all derivatives as assets or liabilities in 
the balance sheet at fair value with the offset to:

•	 	the	accumulated	other	comprehensive	loss	

 component of shareholders’ equity (“AOCL”),  
net of the share attributable to minority interests, 
for any derivatives designated as cash flow 
hedges to the extent such derivatives are  
deemed effective in hedging risks (risk in  
the case of our existing derivatives being  
defined	as	changes	in	interest	rates);

•	 	interest	expense	on	our	Statements	of	Operations	
for any derivatives designated as cash flow hedges 
to the extent such derivatives are deemed ineffec-
tive	in	hedging	risks;	or

•	 	other	revenue	on	our	Statements	of	Operations	
for any derivatives designated as fair value hedges.

We use standard market conventions and techniques 
such as discounted cash flow analysis, option pricing 
models, replacement cost and termination cost  
in  computing the fair value of derivatives at each 
 balance sheet date.

Minority Interests

As discussed previously, we consolidate the accounts of 
our Operating Partnership and its subsidiaries into our 
financial statements. However, we do not own 100% 
of the Operating Partnership. We also do not own 
100% of certain consolidated real estate joint ventures. 
The amounts reported for minority interests on our 
Consolidated Balance Sheets represent the  portion of 
these consolidated entities’ equity that we do not own. 
The amounts reported for minority interests on our 
Consolidated Statements of Operations represent the 
portion of these consolidated entities’ net income not 
allocated to us.

Common units of the Operating Partnership (“common 
units”) are substantially similar economically to our 
common shares of beneficial interest (“common shares”). 
Common units not owned by us are also exchangeable 
into our common shares, subject to certain conditions. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 56

Page 57

Our computation of diluted EPS does not assume  conversion of securities into our common shares if conversion 
of those securities would increase our diluted EPS in a given year. A summary of the numerator and denominator 
for purposes of basic and diluted EPS calculations is set forth below (in thousands, except per share data): 

Numerator:
Income from continuing operations
Add: Gain on sales of real estate, net
Less: Preferred share dividends
Less: Issuance costs associated with redeemed preferred shares

Numerator for basic and diluted EPS from continuing operations
Add: Income from discontinued operations, net

For the Years Ended December 31,

2008

2007

2006

$  55,652
837
(16,102)
—

$ 31,014
1,560
(16,068)
—

$ 30,075
732
(15,404)
(3,896)

40,387
2,179

16,506
2,210

11,507
18,420

Numerator for basic and diluted EPS on net income available to common shareholders

$  42,566

$ 18,716

$ 29,927

Denominator (all weighted averages):
Denominator for basic EPS (common shares)
Dilutive effect of share-based compensation awards

Denominator for diluted EPS

Basic EPS:

Income from continuing operations
Income from discontinued operations

  Net income available to common shareholders

Diluted EPS:

Income from continuing operations
Income from discontinued operations

  Net income available to common shareholders

Our diluted EPS computations do not include the 
effects of the following securities since the conversions 
of such securities would increase diluted EPS for the 
respective periods: 

Weighted Average Shares 
Excluded from 
Denominator for the Years 
Ended December 31,

2008

2007

2006

Conversion of common units  8,107
Conversion of convertible  
  preferred units
Conversion of convertible  
  preferred shares
Anti-dilutive share-based  
  compensation awards

1,142

176

434

8,296

8,511

176

425

695

176

N/A

387

48,132
733

48,865

46,527
1,103

47,630

41,463
1,799

43,262

$ 

0.84
0.04

$ 

0.35
0.05

$ 

0.28
0.44

$ 

0.88

$ 

0.40

$ 

0.72

$ 

0.83
0.04

$ 

0.35
0.04

$ 

0.27
0.42

$ 

0.87

$ 

0.39

$ 

0.69

As discussed in Note 9, the Operating Partnership  
has outstanding 3.50% Exchangeable Senior Notes 
that are due in 2026. The notes have an exchange 
 settlement feature that provides that the notes may, 
under certain  circumstances, be exchangeable for cash 
(up to the principal amount of the notes) and, with 
respect to any excess exchange value, may be exchange-
able into (at our option) cash, our common shares or  
a combination of cash and our common shares at an 
exchange rate of 18.6947 shares per one thousand 
 dollar principal amount of the notes (exchange rate is 
as of December 31, 2008 and is equivalent to an 
exchange price of $53.49 per common share). The 
Exchangeable Senior Notes did not affect our diluted 
EPS reported above since the weighted average  
closing price of our common shares during each  
of the periods was less than the exchange price per 
common share applicable for such periods.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 58

Page 59

 
 
 
 
 
 
notes continued

Share-Based Compensation

Fair Value of Financial Instruments

We have historically issued two forms of share-based 
compensation: options to purchase common shares 
(“options”) and restricted common shares (“restricted 
shares”). We account for our share-based compensa-
tion in accordance with Statement of Financial 
Accounting Standards No. 123(R), “Share-Based 
Payment” (“SFAS 123(R)”). SFAS 123(R) establishes 
standards for the accounting for transactions in which 
an entity exchanges its equity instruments for goods 
or services, focusing primarily on accounting for trans-
actions in which an entity obtains employee services 
in share-based payment transactions. The statement 
requires us to measure the cost of employee services 
received in exchange for an award of equity instruments 
based generally on the fair value of the award on the 
grant	date;	such	cost	is	then	recognized	over	the	period	
during which the employee is required to provide 
 service in exchange for the award (generally the vesting 
period). No compensation cost is recognized for 
equity instruments for which employees do not render 
the requisite service. SFAS 123(R) also requires that 
share-based compensation be computed based on 
awards	that	are	ultimately	expected	to	vest;	as	a	result,	
future forfeitures of awards are estimated at the time of 
grant and revised, if necessary, in subsequent  periods 
if actual forfeitures differ from those estimates. We 
capitalize costs associated with share-based compensa-
tion attributable to employees engaged in construction 
and development activities. 

When we adopted SFAS 123(R), we elected to adopt 
the alternative transition method for calculating the tax 
effects of share-based compensation. The alternative 
transition method enabled us to use a simplified method 
to establishing the beginning balance of the additional 
paid-in capital pool related to the tax effects of employee 
share-based compensation, which was available to 
absorb tax deficiencies recognized subsequent to the 
adoption of SFAS 123(R).

We compute the fair value of share options under 
SFAS 123(R) using the Black-Scholes option-pricing 
model. Under that model, the risk-free interest rate is 
based on the U.S. Treasury yield curve in effect at the 
time of grant. The expected option life is based on our 
historical experience of employee exercise behavior. 
Expected volatility is based on historical volatility of our 
common shares. Expected dividend yield is based on 
the average historical dividend yield on our common 
shares over a period of time ending on the grant date 
of the options. 

In September 2006, the Financial Accounting Standards 
Board (“FASB”) issued Statement of Financial Accounting 
Standards No. 157, “Fair Value Measurements” (“SFAS 
157”). SFAS 157 defines fair value, establishes a frame-
work for measuring fair value in generally accepted 
accounting principles and expands disclosures about fair 
value measurements. The Statement does not require 
or permit any new fair value measurements but does 
apply under other accounting pronouncements that 
require or permit fair value measurements. The changes 
to current practice resulting from the Statement relate 
to the definition of fair value, the methods used to 
measure fair value and the expanded disclosures about 
fair value measurements. With respect to SFAS 157, 
the FASB also issued FASB Staff Position SFAS 157-1, 
“Application of FASB Statement No. 157 to FASB State-
ment No. 13 and Other Accounting Pronouncements 
That Address Fair Value Measurements for Purposes of 
Lease Classification or Measurement under Statement 13” 
(“FSP FAS 157-1”) and FASB Staff Position SFAS 157-2, 
“Effective Date of FASB Statement No. 157” (“FSP FAS 
157-2”). FSP FAS 157-1 amends SFAS 157 to exclude 
from the scope of SFAS 157 certain leasing transactions 
accounted for under Statement of Financial Accounting 
Standards No. 13, “Accounting for Leases.” FSP FAS 
157-2 amends SFAS 157 to defer the effective date of 
SFAS 157 for all non-financial assets and  non-financial 
liabilities except those that are recognized or disclosed 
at fair value in the financial statements on a recurring 
basis to fiscal years beginning after November 15, 2008. 
Effective January 1, 2008, we adopted, on a prospective 
basis, the portions of SFAS 157 not deferred by FSP 
FAS	157-2;	this	adoption	did	not	have	a	material	effect	
on our financial position, results of operations or cash 
flows. We do not expect that the adoption of SFAS 157 
for our non-financial assets and non-financial liabilities 
on January 1, 2009 will have a material effect on our 
financial position, results of operations or cash flows. 

We also adopted FASB Staff Position SFAS 157-3, 
“Determining the Fair Value of a Financial Asset  
When the Market for That Asset is Not Active” (“FSP 
FAS-157-3”), effective upon its issuance by the FASB 
on October 10, 2008. The adoption of FSP FAS-157-3 
did not have a material effect on our financial position, 
results of operations or cash flows.

Under SFAS 157, fair value is defined as the exit  
price, or the amount that would be received upon  
sale of an asset or paid to transfer a liability in an 
orderly transaction between market participants as  

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 58

Page 59

of the measurement date. SFAS 157 also establishes  
a hierarchy for inputs used in measuring fair value that 
maximizes the use of observable inputs and minimizes 
the use of unobservable inputs by requiring that  
the most observable inputs be used when available. 
Observable inputs are inputs market participants would 
use in valuing the asset or liability developed based  
on market data obtained from sources independent  
of us. Unobservable inputs are inputs that reflect  
our assumptions about the factors market participants 
would use in valuing the asset or liability developed 
based upon the best information available in the 
circum stances. The hierarchy of these inputs is broken 
down into three levels: Level 1 inputs are quoted prices 
(unadjusted) in active markets for identical assets or 
liabilities;	Level	2	inputs	include	(1)	quoted	prices	for	
similar assets or liabilities in active markets, (2) quoted 
prices for identical or similar assets or liabilities in 
markets that are not active and (3) inputs (other than 
quoted prices) that are observable for the asset or 
	liability,	either	directly	or	indirectly;	and	Level	3	
inputs are unobservable inputs for the asset or liability. 
Categorization within the valuation hierarchy is based 
upon the lowest level of input that is significant to the 
fair value measurement. 

The assets held in connection with our non-qualified 
elective deferred compensation plan and the corre-
sponding liability to the participants are measured at 
fair value on a recurring basis on our consolidated bal-
ance sheet using quoted market prices. The assets are 

treated as trading securities for accounting purposes 
and included in restricted cash on our consolidated 
balance sheet. The offsetting liability is adjusted to 
fair value at the end of each accounting period based 
on the fair value of the plan assets and reported in 
other liabilities in our consolidated balance sheet. The 
assets and corresponding liability of our non-qualified 
elective deferred compensation plan are classified in 
Level 1 of the fair value hierarchy.

The valuation of our derivatives is determined using 
widely accepted valuation techniques, including dis-
counted cash flow analysis on the expected cash flows 
of each derivative. This analysis reflects the contractual 
terms of the derivatives, including the period to matu-
rity, and uses observable market-based inputs, including 
interest rate market data and implied volatilities in such 
interest rates. While we determined that the majority 
of the inputs used to value our derivatives fall within 
Level 2 of the fair value hierarchy under SFAS 157,  
the credit valuation adjustments associated with our 
derivatives also utilize Level 3 inputs, such as estimates 
of current credit spreads to evaluate the likelihood of 
default. However, as of December 31, 2008, we 
assessed the significance of the impact of the credit 
valuation adjustments on the overall valuation of our 
derivatives and determined that these adjustments are 
not significant to the overall valuation of our deriva-
tives. As a result, we determined that our derivative 
valuations in their entirety are classified in Level 2  
of the fair value hierarchy.

The table below sets forth our financial assets and  liabilities that are accounted for at fair value on a recurring 
basis as of December 31, 2008:

Description

Assets:
Deferred compensation plan assets(1)

Liabilities:
Deferred compensation plan liability(2)
Interest rate swap contracts(2)

Liabilities

quoted Prices in 
Active Markets for 
Identical Assets 
(Level 1)

Significant Other 
Observable Inputs 
(Level 2)

Significant 
Unobservable Inputs 
(Level 3)

$ 4,549

$ 4,549
—

$ 4,549

$  —

$  —
5,102

$ 5,102

$—

$—
 —

$—

Total

$ 4,549

$ 4,549
5,102

$ 9,651

(1) Included in the line entitled “restricted cash” on our Consolidated Balance Sheet.

(2) Included in the line entitled “other liabilities” on our Consolidated Balance Sheet.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 60

Page 61

 
 
notes continued

The carrying values of cash and cash equivalents, 
restricted cash, accounts receivables, other assets 
(excluding mortgage loans receivable) and accounts 
payable and accrued expenses are reasonable estimates 
of their fair values because of the short maturities of 
these instruments. We estimated the fair values of our 
mortgage loans receivable by using discounted cash 
flow analyses based on an appropriate market rate for a 
similar type of instrument. We estimated fair values of 
our debt based on quoted market prices for publicly-
traded debt and on the discounted estimated future 
cash	payments	to	be	made	for	other	debt;	the	discount	
rates used approximate current market rates for loans, 
or groups of loans, with similar maturities and credit 
quality, and the estimated future payments include 
scheduled principal and interest payments. Fair value 
estimates are made at a specific point in time, are 
 subjective in nature and involve uncertainties and 
 matters of significant judgment. Settlement of such  
fair value amounts may not be possible and may not  
be a prudent management decision.

For additional fair value information, please refer to 
Note 8 for mortgage loans receivable, Note 9 for debt 
and Note 10 for derivatives.

Reclassification

We reclassified certain amounts from the prior periods 
to conform to the current period presentation of our 
Consolidated Financial Statements. These reclassifica-
tions did not affect previously reported consolidated 
net income or shareholders’ equity. 

Recent Accounting Pronouncements

In February 2007, the FASB issued Statement of Financial 
Accounting Standards No. 159, “The Fair Value Option 
for Financial Assets and Financial Liabilities” (“SFAS 159”). 
SFAS 159 permits entities to choose to measure many 
financial assets and financial liabilities at fair value. 
Unrea lized gains and losses on items for which  
the fair value option has been elected are reported  
in earnings. We adopted SFAS 159 on a prospective 
basis effective January 1, 2008. Our adoption of  
SFAS 159 did not have a material effect on our 
 financial position, results of operations or cash flows 
since we did not elect to apply the fair value option  
for any of our eligible financial instruments or other 
items on the January 1, 2008 effective date. 

In December 2007, the FASB issued Statement of 
Financial Accounting Standards No. 141(R), “Business 
Combinations” (“SFAS 141(R)”). SFAS 141(R) requires the 

acquiring entity in a business combination to recognize 
all (and only) the assets acquired and liabilities assumed 
in	the	transactions;	establishes	the	acquisition-date	fair	
value as the measurement objective for all assets acquired 
and	liabilities	assumed;	and	requires	the	acquirer	to	
disclose to investors and other users all of the informa-
tion they need to evaluate and understand the nature 
and financial effect of the business combination. SFAS 
141(R) is effective for us beginning on January 1, 2009. 
SFAS 141(R) will require us to expense transaction costs 
associated with property acquisitions occurring subse-
quent to the pronouncement’s effective date, which is a 
significant change since our current practice is to capi-
talize such costs into the cost of the acquisitions. Other 
than the effect this change will have in connection with 
future acquisitions, we do not believe that our adoption 
of SFAS 141(R) will have a material effect on our finan-
cial  position, results of operations or cash flows.

In December 2007, the FASB issued Statement of 
Financial Accounting Standards No. 160, “Noncon-
trol ling Interests in Consolidated Financial Statements” 
(“SFAS 160”). SFAS 160 requires all entities to report 
noncontrolling (minority) interests in subsidiaries as 
equity in the consolidated financial statements. SFAS 
160 is effective for us beginning on January 1, 2009. 
We believe that SFAS 160 will primarily affect how we 
present minority interests on our consolidated balance 
sheets, statements of operations and cash flows but will 
not otherwise have a material effect on our financial 
position, results of operations or cash flows.

In March 2008, the FASB issued Statement of Financial 
Accounting Standards No. 161, “Disclosures about 
Derivative Instruments and Hedging Activities” (“SFAS 
161”). This new standard expands the disclosure require-
ments for derivative instruments and for hedging 
activities in order to provide users of financial statements 
with an enhanced understanding of: (1) how and why an 
entity	uses	derivative	instruments;	(2)	how	derivative	
instruments and related hedged items are accounted 
for under Statement of Financial Accounting Standards 
No. 133, “Accounting for Derivative Instruments and 
Hedging	Activities”	and	its	related	interpretations;	 
and (3) how derivative instruments and related hedged 
items affect an entity’s financial position, financial per-
formance, and cash flows. SFAS 161 is to be applied 
prospectively for the first annual reporting period 
beginning on or after November 15, 2008. We believe 
that SFAS 160 will lead to additional disclosure regard-
ing derivatives in our notes to future financial statements 
but will not otherwise affect our financial position, 
results of operations or cash flows.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 60

Page 61

In May 2008, the FASB issued FASB Staff Position No. 
APB 14-1, “Accounting for Convertible Debt Instruments 
That May Be Settled in Cash upon Conversion (Including 
Partial Cash Settlement)” (“FSP APB-14-1”). FSP APB-14-1 
requires that the  initial proceeds from convertible debt 
instruments that may be settled in cash, including par-
tial cash  settlements, be allocated between a liability 
component and an equity component associated with 
the embedded conversion option. This pronouncement’s 
objective is to require the liability and equity compo-
nents of convertible debt to be separately accounted 
for in order to enable interest expense to be recorded 
at a rate that would reflect the issuer’s conventional 
debt borrowing rate (previously, interest expense on 
such debt was recorded based on the contractual rate 
of interest under the debt). Under this pronouncement, 
the liability component is recorded at its fair value, as 
calculated based on the present value of its cash flows 
discounted using the issuer’s conventional debt borrow-
ing rate. The equity component is recorded based on the 
differ ence between the debt proceeds and the fair value 
of the liability. The difference between the liability’s 
principal amount and fair value is reported as a debt dis-
count and amortized as interest expense over the debt’s 
expected life using the effective interest method. The 
provisions of FSP APB-14-1 will be effective beginning 
January 1, 2009 and are to be applied retrospectively 
to all periods presented. While we are in the process of 
evaluating FSP APB-14-1, we currently believe that this 
pronouncement will affect the accounting for our 3.5% 
Exchangeable Senior Notes primarily by: (1) resulting 
in our recognition of additional interest expense, net of 
capitalized amounts, of approximately $3,200 in 2008, 
$3,100	in	2007	and	$1,000	in	2006;	and	(2)	decrease	
the amount of gain that we recognized on our repur-
chase of a $37,500 aggregate principal amount of such 
notes in 2008 by approximately $2,300.

In June 2008, the FASB issued FASB Staff Position  
No. EITF 03-6-1, “Determining Whether Instruments 
Granted in Share-Based Payment Transactions are 
Participating Securities” (“FSP EITF 03-6-1”). FSP 
EITF 03-6-1 requires that all unvested share-based 
payment awards that contain nonforfeitable rights to 
dividends be considered participating securities and 
therefore shall be included in the computation of EPS 
pursuant to the two-class method. The two-class method 
is an earnings allocation formula that determines EPS for 
each class of common shares and  participating security 
according to dividends declared (or accumulated) and 
participation rights in undistributed earnings. FSP EITF 
03-6-1 is effective for us beginning January 1, 2009, and 
interim periods within that year, and the EPS of prior 

periods will be adjusted retrospectively. We believe 
that upon our adoption of FSP EITF 03-6-1, we will  
be required to include a larger number of shares in our 
denominator for EPS attributable to our weighted 
average unvested restricted shares outstanding, which 
will	have	a	decreasing	effect	to	our	EPS;	however,	we	
do not believe that this decreasing effect to our EPS 
from the larger number of shares will be material.

3.  ConCentration 

 of rental revenue

We derived large concentrations of our revenue from 
real estate operation from certain tenants during the 
periods set forth in our Consolidated Statements of 
Operations. The following table summarizes the per-
centage of our rental revenue (which excludes tenant 
recoveries and other real estate operations revenue) 
earned from (1) individual tenants that accounted for 
at least 5% of our rental revenue from continuing and 
discontinued operations and (2) the aggregate of the 
five tenants from which we recognized the most rental 
revenue in the respective years: 

For the Years Ended 
December 31,

2008

2007

2006

United States Government
Northrop Grumman Corporation(1)
Booz Allen Hamilton, Inc.
Five largest tenants

15% 13% 13%
  8%   9% N/A
  6%   7%   7%
35% 32% 32%

(1)  Includes affiliated organizations and agencies and  

predecessor companies.

We also derived in excess of 80% of our construction 
contract revenue from the United States Government 
in each of the years set forth on the Consolidated 
Statements of Operations.

In addition, we derived large concentrations of our 
total revenue from real estate operations (defined as 
the sum of rental revenue and tenant recoveries and 
other real estate operations revenue) from certain 
 geographic regions. These concentrations are set forth 
in the segment information provided in Note 15. Several 
of these regions, including the Baltimore/Washington 
Corridor, Northern Virginia, Suburban Baltimore, 
Maryland (“Suburban Baltimore”), Suburban Maryland 
and St. Mary’s & King George Counties, are within close 
proximity to each other, and all but two of our regions 
(Colorado Springs, Colorado (“Colorado Springs”) and 
San Antonio, Texas (“San Antonio”)) are located in the 
Mid-Atlantic region of the United States.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 62

Page 63

 
notes continued

As of December 31, 2007, an office property located in 
Dayton, New Jersey was classified as held for sale. We 
completed the sale of this property on January 31, 2008. 

Projects we had under construction or development 
consisted of the following:

Land
Construction in progress

December 31,

2008

2007

$ 220,863 $ 214,696
181,316

272,220

$ 493,083 $ 396,012

4.  CommerCial real estate 

 ProPerties

Operating properties consisted of the following:

December 31, 

2008

2007

Land
Buildings and improvements

$  423,985 $  413,779
2,064,960

2,202,931

Less: accumulated depreciation

2,626,916
(343,110)

2,478,739
(285,800)

$2,283,806 $2,192,939

2008 Acquisitions

We acquired the following office properties in 2008:

Project Name

Location

Date of 
Acquisition

Number of 
Buildings

3535 Northrop Grumman Point
1560 Cable Ranch Road (Buildings A and B)

Colorado Springs, CO
San Antonio, TX

6/10/2008
6/19/2008

1
2

3

Total 
Rentable 
Square Feet

124,305
122,975

247,280

Acquisition 
Cost

$ 23,240
17,317

$ 40,557

The table below sets forth the allocation of the 
 acquisition costs of these properties:

Land, operating properties
Building and improvements
Intangible assets on real estate acquisitions

Total assets
Below-market leases

Total acquisition cost

$  3,396
32,478
7,631

43,505
(2,948)

$ 40,557

Intangible assets recorded in connection with the 
above acquisitions included the following:

Weighted 
Average 
Amortization 
Period (in Years)

In-place lease value
Tenant relationship value

$ 6,094
1,537

$ 7,631

10
12

11

We also completed the following acquisitions in 2008:

•	 	a	107-acre	land	parcel	in	Frederick,	Maryland	
that we believe can support approximately 1.0 
million developable square feet for $8,703 
(Frederick, Maryland is located in our Suburban 
Maryland	region);	and

•	 	land	parcels	totaling	46	acres	located	in	San	

Antonio that we believe can support approximately 
750,000 developable square feet for $10,570.

2008 Construction  
and Development Activities

During 2008, we had seven newly-constructed buildings 
totaling 528,000 square feet (three located in Colorado 
Springs and two each in the Baltimore/Washington 
Corridor and San Antonio) become fully operational 
(89,000 of these square feet were placed into service 
in 2007) and placed into service 85,000 square feet in 
two partially operational properties (one each located 
in Suburban Maryland and Colorado Springs). We also 
placed into service 59,000 redeveloped square feet in a 
property located in Northern Virginia.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 62

Page 63

 
 
As of December 31, 2008, we had construction 
 underway on four new buildings each in the Baltimore/
Washington Corridor and Colorado Springs and two in 
Suburban Maryland (including the 85,000 square feet 
in operational properties described above). We also had 

development activities underway on three new buildings 
in the Baltimore/Washington Corridor and two each 
in Suburban Baltimore and San Antonio. In addition, 
we had redevelopment underway on one property 
located in the Baltimore/Washington Corridor.

2008 Dispositions

We sold the following operating properties in 2008:

Project Name

Location

Date  
of Sale

Number of 
Buildings

429 Ridge Road
7253 Ambassador Road
47 Commerce Road

Dayton, New Jersey
Woodlawn, Maryland
Cranbury, New Jersey

1/31/2008
6/2/2008
4/1/2008

1
1
1

3

Total 
Rentable 
Square Feet

142,385
38,930
41,398

222,713

Sale Price

$ 17,000
5,100
3,150

$ 25,250

Gain  
on Sale

$ 1,365
1,278
—

$ 2,643

The gain from these sales is included on the line of our 
Consolidated Statements of Operations entitled “income 
from discontinued operations, net of minority interests.”

During 2008, we also completed the sale of six recently 
constructed office condominiums located in Herndon, 
Virginia (located in the Northern Virginia region) for 
sale prices totaling $8,388 in the aggregate. We recog-
nized an aggregate gain before minority interests and 
taxes of $1,368 on these sales, which is included on 
the line of our Consolidated Statements of Operations 
entitled “gain on sales of real estate, net.”

2007 Acquisitions

On January 9 and 10, 2007, we completed a series  
of transactions that resulted in the acquisition of 56 
operating properties totaling approximately 2.4 million 
square feet and land parcels totaling 187 acres. We refer 
to these transactions collectively as the Nottingham 
Acquisition. All of the acquired properties are located in 
Maryland, with 36 of the operating properties, totaling 
1.6 million square feet, and land parcels totaling 175 
acres, located in White Marsh, Maryland (located in the 
Suburban Baltimore region and the remaining properties 
and land parcels located in other regions in Northern 
Baltimore County and the Baltimore/Washington 
Corridor). We believe that the land parcels can 
 support at least 2.0 million developable square feet. 

We completed the Nottingham Acquisition for  
an aggregate cost of $366,852. The table below sets 
forth the allocation of the acquisition costs of the 
Nottingham Acquisition:

Land, operating properties
Land, construction or development
Building and improvements
Intangible assets on real estate acquisitions

Total assets
Below-market leases

Total acquisition cost

$  70,754
37,309
210,264
53,214

371,541
(4,689)

$ 366,852

Intangible assets recorded in connection with the 
Nottingham Acquisition included the following:

Weighted
Average
Amortization
Period (in Years)

Tenant relationship value
In-place lease value
Above-market leases

$ 25,778
23,631
3,805

$ 53,214

8
4
4

6

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 64

Page 65

 
 
notes continued

Other acquisitions completed in 2007 included  
the following:

2007 Construction  
and Development Activities

•	 	the	remaining	50%	undivided	interest	in	a	 
132-acre parcel of land located in Colorado 
Springs that we believe can support approxi-
mately 1.9 million developable square feet  
of	office	space	for	$13,586;	and

•	 	a	56-acre	parcel	of	land	located	in	Aberdeen,	
Maryland that we believe can support up to 
800,000 developable square feet for $10,455 
(Aberdeen, Maryland is located in our Suburban 
Baltimore region). The property is located 
 adjacent to Aberdeen Proving Ground, a  
United States Government installation.

In addition, we acquired a 23-acre parcel of land 
located in Hanover, Maryland, with a fair value upon 
our acquisition of $9,829 (including improvements 
thereon contributed by us), through Arundel Preserve 
#5, LLC, a consolidated joint venture in which we own 
a 50% interest (Hanover, Maryland is located in our 
Baltimore/Washington Corridor region). The joint 
venture is completing the construction of an office 
property on the land parcel totaling approximately 
152,000 square feet, and we believe the land parcel can 
support up to 303,000 additional developable square 
feet. We discuss joint ventures further in Note 5.

2007 Dispositions

We sold the following operating properties in 2007:

During 2007, we had five properties totaling 568,433 
square feet (three located in the Baltimore/Washington 
Corridor and two in our Other region) become fully 
operational (68,196 of these square feet were placed 
into service in 2006) and placed into service 48,377 
square feet in a partially operational property located 
in the Baltimore/Washington Corridor.

As of December 31, 2007, we had construction 
 underway on four new buildings in the Baltimore/
Washington Corridor (including the partially opera-
tional property discussed above and one property 
owned through Arundel Preserve #5, LLC), four in 
Colorado Springs and two in San Antonio. We also 
had development activities underway on four new 
buildings located in the Baltimore/Washington 
Corridor, two each in Colorado Springs and Suburban 
Baltimore and one each in Suburban Maryland and 
King George County, Virginia. In addition, we had 
redevelopment underway on one wholly owned 
 existing building located in Colorado Springs  
and three properties owned by joint ventures  
(two are located in Northern Virginia and one  
in the Baltimore/Washington Corridor).

Project Name

Location

Date  
of Sale

Number of 
Buildings

2 and 8 Centre Drive
7321 Parkway Drive
10552 Philadelphia Road

Monroe, New Jersey
Hanover, Maryland
White Marsh, Maryland

9/7/2007
9/7/2007
12/27/2007

2
1
1

4

Total 
Rentable 
Square Feet

32,331
39,822
56,000

Sale Price

$  6,000
5,000
6,800

Gain  
on Sale

$ 1,931
855
1,127 (1)

128,153

$ 17,800

$ 3,913

(1)  Excluding income tax of $44 on this gain.

We also sold three parcels of land in our Suburban Baltimore region totaling 16 acres developable into approximately 
230,000 square feet for an aggregate of $8,687, resulting in a gain of $3,002 (excluding income tax of $1,069). 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 64

Page 65

 
5. real estate Joint ventures

During the periods included herein, we had an  investment in one unconsolidated real estate joint venture 
accounted for using the equity method of accounting. Information pertaining to this joint venture investment  
is set forth below:

Investment Balance at 
December 31,

Date

2008

2007

Acquired Ownership

Nature of Activity

Total 
Assets at 
12/31/2008

Maximum 
Exposure  
  to Loss(1)

Harrisburg Corporate  
  Gateway Partners, L.P.

$ (4,770)(2)

$ (4,246)(2) 9/29/05

20%

Operates 16 buildings(3)

$69,838

$—

(1)  Derived from the sum of our investment balance and maximum additional unilateral capital contributions or loans required from us. Not reported above are 

additional amounts that we and our partner are required to fund when needed by this joint venture; these funding requirements are proportional to our respective 
ownership percentages. Also not reported above are additional unilateral contributions or loans from us, the amounts of which are uncertain, which we would be 
required to make if certain contingent events occur (see Note 18). 

(2)  The carrying amount of our investment in this joint venture was lower than our share of the equity in the joint venture by $5,196 at December 31, 2008 and 

2007 due to our deferral of gain on the contribution by us of real estate into the joint venture upon its formation. A difference will continue to exist to the extent 
the nature of our continuing involvement in the joint venture remains the same. 

(3)  This joint venture’s property is located in Greater Harrisburg, Pennsylvania.

A two-member management committee is responsible 
for making major decisions (as defined in the joint 
 venture agreement) for Harrisburg Corporate Gateway 
Partners, L.P., and we control one of its management 
committee positions. Net cash flows of the joint 
 venture are distributed to the partners in proportion 
to their respective ownership interests. We earned  
fees from the joint venture totaling $268 in 2008, $458 
in 2007 and $619 in 2006 for property management, 
construction and leasing services. We believe that this 
entity is a VIE under FIN 46(R), but we do not believe 
that we are the primary beneficiary of the VIE due 
 primarily to our partner’s: (1) greater exposure to 
 economic risks as a result of the magnitude of its 
investment	in	comparison	to	ours;	and	(2)	rights	to	
control the activities of the entity. 

The following table sets forth condensed balance sheets 
for Harrisburg Corporate Gateway Partners, L.P.:

December 31,

2008

2007

Commercial real estate property
Other assets

$ 62,308
7,530

$ 63,773
9,051

  Total assets

Liabilities
Owners’ equity

$ 69,838

$ 72,824

$ 67,725
2,113

$ 67,991
4,833

  Total liabilities and owners’ equity $ 69,838

$ 72,824

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 66

Page 67

 
 
The following table sets forth combined condensed 
statements of operations for the two unconsolidated 
real estate joint ventures we owned from January 1, 
2006 through December 31, 2008, which included 
Harrisburg Corporate Gateway Partners, L.P. and 
Route 46 Partners, a joint venture that was dissolved 
on July 26, 2006:

For the Years Ended 
December 31,

2008

2007

2006

Revenues
Property operating expenses
Interest expense
Depreciation and  
  amortization expense
Gain on sale

$  9,593 $  9,795 $ 11,521
(4,067)
(4,224)

(3,371)
(3,943)

(3,467)
(4,099)

(3,291)
—

(3,397)

(4,464)
— 4,032

Net (loss) income

$ (1,012) $ (1,168) $  2,798

We acquired the following interests in consolidated 
real estate joint ventures in 2007 and 2008:

•	 	a	45%	economic	interest	in	M	Square	Associates,	

LLC (“M Square”) on January 29, 2008. We 
acquired this interest through our 90% ownership 
interest in Enterprise Campus Developer, LLC 
(“Enterprise Campus”), which in turn owns a 
50% interest in M Square. M Square was created 
to ground lease, develop and manage office 
properties, approved for up to approximately 
750,000 square feet, located in M Square Research 
Park in College Park, Maryland (in the Suburban 
Maryland region). Enterprise Campus’s partner in 
M Square received a capital credit for the value 
of the land that it leased to the joint venture. 
Enterprise Campus is responsible for funding  
and obtaining financing for all development and 
construction	activities;	its	members	expect	to	
fund a portion of the costs through capital 
 contributions in proportion to their respective 
ownership interests, and the remaining costs for 
which third party financing cannot be obtained 
will be funded through loans from us. Net cash 
flows of M Square will be distributed to the 
 partners as follows: (1) member loans and accrued 
interest;	(2)	Enterprise	Campus’s	preferred	return	
and capital contributions used to fund infrastruc-
ture	costs;	(3)	the	partners’	preferred	returns	and	

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 66

Page 67

notes continued

capital contributions used to fund all other costs, 
including the base land value credit, in proportion 
to	the	accrued	returns	and	capital	accounts;	and	
(4) residual amounts distributed 50% to each 
member. Net cash flows of Enterprise Campus 
will then be distributed to its members as follows: 
(1) a $250 priority preferred return to us repre-
senting a return on a deposit we paid in lieu of a 
development	bond	on	behalf	of	the	joint	venture;	
(2) the partners’ preferred returns and capital 
investments in proportion to the partners’ 
respective	ownership	interests;	and	(3)	residual	
amounts according to a waterfall distribution 
schedule defined in the joint venture agreement 
under which our partner, who is acting as manager 
of day-to-day construction activities of the 
 project, receives returns incrementally higher 
than its ownership percentage as net cash flows 
to	the	joint	venture	increase;	

•	 	a	50%	interest	in	Arundel	Preserve	#5,	LLC,	 

on July 2, 2007. The joint venture owns a land 
parcel located in Hanover, Maryland on which  
it is constructing an office property totaling 
approximately 152,000 square feet. We believe 
the land parcel can support up to 303,000 
 additional developable square feet. Our partner 
received a capital credit for its contribution  
of the land to the joint venture, and we are 
responsible for funding all development and 
 construction costs for which financing is not 
obtained. Net cash flows will be distributed to 
the partners as follows: (1) preferred returns in 
proportion to the partners’ respective capital 
accounts;	(2)	repayment	of	any	building	operating	
reserves	funded	by	us;	and	(3)	residual	cash	flows	
in proportion to the partners’ respective ownership 
interests;	and

•	 	a	92.5%	interest	in	13849	Park	Center	Road,	LLC,	
a joint venture formed in 2007 to own property 
undergoing redevelopment that was previously 
owned by COPT Opportunity Invest I, LLC. This 
joint venture constructed office condominium units 
in Herndon, Virginia and, during 2008, sold six 
such units, as discussed in Note 4. Net cash flows 
of the joint venture were distributed to the partners 
in proportion to and to the extent of their capital 
accounts. On December 31, 2008, we acquired 
our partner’s 7.5% interest in this joint venture.

The table below sets forth information pertaining to our investments in consolidated joint ventures at  
December 31, 2008:

M Square Associates, LLC
COPT Opportunity Invest I, LLC
Arundel Preserve #5, LLC
COPT-FD Indian Head, LLC
MOR Forbes 2 LLC

Date  
Acquired

6/26/2007
12/20/2005
7/2/2007
10/23/2006
12/24/2002

Ownership 
% at 

12/31/2008 Nature of Activity

Total 
Assets at 
12/31/2008

Collateralized 
Assets at 
12/31/2008

45.0%
92.5%
50.0%
75.0%
50.0%

Developing land parcels(1)
Redeveloping one property(2)
Developing land parcel(3)
Developing land parcel(4)
Operates one building(5)

$31,569 
27,992 
27,820 
5,243 
4,530 

$97,154 

$ —
—
—
—
—

$ —

(1)  This joint venture is developing land parcels located in College Park, Maryland. We own a 90% interest in Enterprise Campus Developers, LLC,  

which in turn owns a 50% interest in M Square.

(2)  This joint venture owns a property in the Baltimore/Washington Corridor region. On December 31, 2008, we acquired our partner’s interest  

in an affiliate of this joint venture that owns a property in the Northern Virginia region.

(3)  This joint venture is developing a land parcel located in Hanover, Maryland. 

(4)  This joint venture’s property is located in Charles County, Maryland (located in our “Other” business segment). 

(5)  This joint venture’s property is located in Lanham, Maryland (located in the Suburban Maryland region).

For COPT Opportunity Invest I, LLC and MOR Forbes 
2 LLC, net cash flows will be distributed to the partners 
in proportion to and to the extent of (1) their preferred 
returns (as defined in the joint venture agreements) and 
(2) their capital accounts, and any residual amounts 
according to a waterfall distribution schedule defined in 
the joint venture agreements under which our partners, 
who are acting as managers of day-to-day construction 
activities of the projects, receive returns incrementally 
higher than their ownership percentages as net cash flows 
to the joint venture increase. For COPT-FD Indian Head, 
LLC, net cash flows will be distributed to the partners 
in proportion to their respective ownership interest.

We determined that all of our consolidated joint 
 ventures were VIEs under FIN 46(R) and that we are 
the primary beneficiary of each VIE because of factors 
relating to our exposure to the potential economic 
risks of the ventures due primarily to: (1) the magni-
tude	of	our	investment	in	comparison	to	our	partners’;	
and/or (2) our responsibility to obtain financing and/or 
fund the activities of the ventures.

Our commitments and contingencies pertaining  
to our real estate joint ventures are disclosed in  
Note 18. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 68

Page 69

 
notes continued

6. intangible assets on real estate aCquisitions

Intangible assets on real estate acquisitions consisted of the following:

In-place lease value
Tenant relationship value
Above-market leases
Market concentration premium

December 31, 2008

December 31, 2007

Gross 
Carrying 
Amount

$ 118,235
33,768
8,817
1,333

Accumulated 
Amortization

$ 53,213
11,336
5,542
214

Net 
Carrying 
Amount

$ 65,022
22,432
3,275
1,119

Gross 
Carrying 
Amount

$ 142,471
35,189
14,428
1,333

$ 162,153

$ 70,305

$ 91,848

$ 193,421

Accumulated 
Amortization

$ 67,132
7,892
9,555
181

$ 84,760

Net 
Carrying 
Amount

$  75,339
27,297
4,873
1,152

$ 108,661

Amortization of the intangible asset categories set 
forth above totaled $24,030 in 2008, $32,157 in 2007 
and $20,675 in 2006. The approximate weighted aver-
age amortization periods of the categories set forth 
above	follow:	in-place	lease	value:	nine	years;	tenant	
relationship	value:	seven	years;	above-market	leases:	
four	years;	and	market	concentration	premium:	34	
years. The approximate weighted average amortization 
period for all of the categories combined is eight 
years. Estimated amortization expense associated with 
the intangible asset categories set forth above is: 
$18,762	for	2009;	$14,457	for	2010;	$11,693	for	2011;	
$9,523	for	2012;	and	$7,068	for	2013.

7. deferred Charges

Deferred charges consisted of the following:

Deferred leasing costs
Deferred financing costs
Goodwill
Deferred other

Accumulated amortization

December 31, 

2008

2007

$  69,529
21,805
1,853
131

$ 63,052
32,617
1,853
155

93,318
(41,312)

97,677
(48,626)

Deferred charges, net

$  52,006

$ 49,051

8.  PrePaid exPenses 

 and other assets 

Prepaid expenses and other assets consisted of  
the following:

Mortgage loans receivable(1)
Construction contract costs  

incurred in excess of billings

Prepaid expenses
Furniture, fixtures and equipment
Other assets

December 31,

2008

2007

$ 29,380

$  3,582

21,934
18,357
12,819
11,299

19,425
13,907
11,410
3,657

Prepaid expenses and other assets

$ 93,789

$ 51,981

(1)  On August 26, 2008, we loaned $24,813 to the owner of a 17-story 
Class A+ rental office property containing 471,000 square feet in 
Baltimore, Maryland. We have a secured interest in the ownership of 
the entity that owns the property and adjacent land parcels that is sub-
ordinate to that of a first mortgage on the property. The loan, which 
matures on August 26, 2011, carries a primary interest rate of 16.0%, 
although certain additional principal fundings available under the loan 
agreement carry an interest rate of 20.0%. While interest is payable to 
us under the loan on a monthly basis, to the extent that the borrower 
does not have sufficient net operating cash flow (as defined in the agree-
ment) to pay all or a portion of the interest due under the loan in a 
given month, such unpaid portion of the interest shall be added to the 
loan principal amount used to compute interest in the following month. 
We are obligated to fund an aggregate of up to $26,550 under this 
loan, excluding any future compounding of unpaid interest. Our maxi-
mum exposure to loss under this loan is equal to any outstanding 
principal, including any unpaid compounded interest. The balance of 
this mortgage loan receivable was $25,797 at December 31, 2008. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 68

Page 69

 
 
 
The fair value of our mortgage loans receivable totaled $28,951 at December 31, 2008 and $3,582 at  
December 31, 2007. 

9. debt

Our debt consisted of the following:

Maximum  
Principal Amount 
Under Debt at  
December 31, 2008

Carrying Value at 
December 31, 

2008

2007

Stated Interest 
Rates at  
December 31, 2008

Scheduled  
Maturity Dates at  
December 31, 2008

Mortgage and other loans payable:
  Revolving Credit Facility

 Mortgage and Other Secured Loans

  Fixed rate mortgage loans(3)

 Revolving Construction Facility(6)

 Other variable rate secured loans
 Other construction loan facilities

 Total mortgage and other  

secured loans

  Note Payable
  Unsecured seller notes

 Total mortgage and  
  other loans payable
3.5% Exchangeable Senior Notes

 Total debt

$600,000

$  392,500 $  361,000

LIBOR + 0.75%  
to 1.25%(1)

September 30, 2011(2)

N/A
225,000

N/A
48,000

967,617 1,124,551

5.20%–8.63%(4)

81,267

— LIBOR + 1.60%  

2009–2034(5)
May 2, 2011(2)

to 2.00%

221,400
40,589

34,500 LIBOR + 2.25%(7)
104,089 LIBOR + 1.50%(8)

August 1, 2012(2)
2009

1,310,873 1,263,140

N/A

N/A

750

1,702

5.95%

2016

1,704,123 1,625,842
200,000

162,500

$ 1,866,623 $ 1,825,842

3.50%

September 2026(9)

(1)  The weighted average interest rate on the Revolving Credit Facility was 1.49% at December 31, 2008.

(2)  These loans may be extended for a one-year period at our option, subject to certain conditions.

(3)  Several of the fixed rate mortgages carry interest rates that were above or below market rates upon assumption and therefore are recorded at their fair value  
based on applicable effective interest rates. The carrying values of these loans reflect net premiums totaling $501 at December 31, 2008 and $605 at  
December 31, 2007. 

(4)  The weighted average interest rate on these loans was 5.72% at December 31, 2008.

(5)  A loan with a balance of $4,742 at December 31, 2008 that matures in 2034 may be repaid in March 2014, subject to certain conditions.

(6)  This loan is described in further detail below. The weighted average interest rate on this loan was 2.25% at December 31, 2008

(7)  The one loan in this category at December 31, 2008 is subject to a floor of 4.25%, which was the interest rate in effect at December 31, 2008.

(8)  The weighted average interest rate on these loans was 2.86% at December 31, 2008.

(9)  Refer to the paragraph below for descriptions of provisions for early redemption and repurchase of these notes.

On October 1, 2007, we amended and restated the 
credit agreement on our Revolving Credit Facility with 
a group of lenders for which KeyBanc Capital Markets 
and Wachovia Capital Markets, LLC acted as co-lead 
arrangers, KeyBank National Association acted as 
administrative agent and Wachovia Bank, National 
Association acted as syndication agent. The amended 
and restated credit agreement increased the amount of 
the lenders’ aggregate commitment under the facility 
from $500,000 to $600,000, which includes a $50,000 

letter of credit subfacility and a $50,000 swingline 
facility (same-day draw requests), with a right for us  
to further increase the lenders’ aggregate commitment 
during the term to a maximum of $800,000, subject to 
certain conditions. Amounts available under the facility 
are computed based on 65% of our unencumbered 
asset value, as defined in the agreement. The facility 
matures on September 30, 2011, and may be extended 
by one year at our option, subject to certain conditions. 
The variable interest rate on the facility is based on one 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 70

Page 71

 
 
 
 
 
 
 
 
 
 
 
 
 
notes continued

of the following, to be selected by us: (1) the LIBOR 
rate for the interest period designated by us (custom-
arily the one-month rate) plus 0.75% to 1.25%, as 
determined by our leverage levels at different points  
in	time;	or	(2)	the	greater	of	(a)	the	prime	rate	of	 
the lender then acting as the administrative agent or  
(b) the Federal Funds Rate, as defined in the credit 
agreement, plus 0.50%. Interest is payable at the end 
of each interest period (as defined in the agreement), 
and principal outstanding under the facility is payable 
on the maturity date. The facility also carries a quarterly 
fee that is based on the unused amount of the facility 
multiplied by a per annum rate of 0.125% to 0.20%.  
As of December 31, 2008, the maximum amount of 
borrowing capacity under this line of credit totaled 
$600,000, of which $191,250 was available.

On May 2, 2008, we entered into a construction loan 
agreement with a group of lenders for which KeyBanc 
Capital Markets, Inc. acted as arranger, KeyBank 
National Association acted as administrative agent, 
Bank of America, N.A. acted as syndication agent and 
Manufacturers and Traders Trust Company acted as 
documentation	agent;	this	loan	is	referred	to	in	the	
table above as the “Revolving Construction Facility.” 
The construction loan agreement provides for an 
aggregate commitment by the lenders of $225,000, 
with a right for us to further increase the lenders’ 
aggregate commitment during the term to a maximum 
of $325,000, subject to certain conditions. Ownership 
interests in the properties for which construction costs 
are being financed through loans under the agreement 
are pledged as collateral. Borrowings are generally avail-
able for properties included in this construction loan 
agreement based on 85% of the total budgeted costs 
of construction of the applicable improvements for such 
properties as set forth in the properties’ construction 
budgets, subject to certain other loan-to-value and 
debt coverage requirements. As loans for properties 
under the construction loan agreement are repaid in 
full and the ownership interests in such properties are 
no longer pledged as collateral, capacity under the 
construction loan agreement’s aggregate commitment 
will be restored, giving us the ability to obtain new loans 
for other construction properties in which we pledge 
the ownership interests as collateral. The construction 
loan agreement matures on May 2, 2011 and may be 
extended by one year at our option, subject to certain 
conditions. The variable interest rate on each loan is 
based on one of the following, to be selected by us:  
(1) subject to certain conditions, the LIBOR rate for 

the interest period designated by us (customarily the 
one-month rate) plus 1.6% to 2.0%, as determined  
by	our	leverage	levels	at	different	points	in	time;	or	 
(2) the greater of (a) the prime rate of the lender then 
acting as agent or (b) the Federal Funds Rate, as defined 
in the construction loan agreement, plus 0.50%. Interest 
is payable at the end of each interest period (as defined 
in the agreement), and principal outstanding under each 
loan under the agreement is payable on the maturity 
date. The construction loan agreement also carries a 
quarterly fee that is based on the unused amount of 
the commitment multiplied by a per annum rate of 
0.125% to 0.20%.

On July 18, 2008, we borrowed $221,400 under a 
mortgage loan requiring interest only payments for 
the term at a variable rate of LIBOR plus 225 basis 
points, subject to a floor of 4.25%. This loan facility 
has a four-year term with an option to extend by  
an additional year. 

In 2006, our Operating Partnership issued a $200,000 
aggregate principal amount of 3.50% Exchangeable 
Senior Notes due 2026. Interest on the notes is pay-
able on March 15 and September 15 of each year.  
The notes have an exchange settlement feature that 
provides that the notes may, under certain circum-
stances, be exchangeable for cash (up to the principal 
amount of the notes) and, with respect to any excess 
exchange value, may be exchangeable into (at our 
option) cash, our common shares or a combination  
of cash and our common shares at an exchange rate 
(subject to adjustment) of 18.6947 shares per one 
thousand dollar principal amount of the notes (exchange 
rate is as of December 31, 2008 and is equivalent to an 
exchange price of $53.49 per common share). On or 
after September 20, 2011, the Operating Partnership 
may redeem the notes in cash in whole or in part. The 
holders of the notes have the right to require us to 
repurchase the notes in cash in whole or in part on 
each of September 15, 2011, September 15, 2016 and 
September 15, 2021, or in the event of a “fundamental 
change,” as defined under the terms of the notes, for  
a repurchase price equal to 100% of the principal 
amount of the notes plus accrued and unpaid interest. 
Prior to September 11, 2011, subject to certain excep-
tions, if (1) a “fundamental change” occurs as a result 
of certain forms of transactions or series of transactions 
and (2) a holder elects to exchange its notes in connec-
tion with such “fundamental change,” we will increase 
the applicable exchange rate for the notes surrendered 
for exchange by a number of additional shares of our 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 70

Page 71

common shares as a “make whole premium.” The notes 
are general unsecured senior obligations of the Operating 
Partnership and rank equally in right of payment with all 
other senior unsecured indebtedness of the Operating 
Partnership. The Operating Partnership’s obligations 
under the notes are fully and unconditionally guaranteed 
by us. In November 2008, we repurchased a $37,500 
aggregate principal amount of our 3.5% Exchangeable 
Senior Notes for $26,654 from which we recognized a 
gain of $10,376, net of unamortized loan issuance costs.

In the case of each of our mortgage loans, we have 
pledged certain of our real estate assets as collateral. 
Many of our real estate properties were pledged on loan 
obligations as of December 31, 2008. Certain of our debt 
instruments require that we comply with a number of 
restrictive financial covenants, including adjusted con-
solidated net worth, minimum property interest coverage, 
minimum property hedged interest coverage, minimum 
consolidated interest coverage, maximum consolidated 
unhedged floating rate debt and maximum consoli-
dated total indebtedness. As of December 31, 2008, 
we were in compliance with these financial covenants.

Our debt matures on the following schedule:

2009
2010
2011
2012
2013
Thereafter

  Total

$103,982
74,033
746,081
263,600
137,718
540,708

$1,866,122(1)

(1)  Represents scheduled principal amortization and maturities only 

and therefore excludes net premiums of $501.

Weighted average borrowings under our Revolving 
Credit Facility totaled $412,718 in 2008 and $298,901 
in 2007. The weighted average interest rate on this 
credit facility was 4.33% in 2008 and 6.45% in 2007.

We capitalized interest costs of $17,632 in 2008, 
$19,274 in 2007 and $14,559 in 2006. 

The following table sets forth information pertaining to the fair value of our debt:

December 31, 2008

December 31, 2007

Carrying Amount

Estimated Fair Value

Carrying Amount 

Estimated Fair Value

$ 1,130,867
735,756

$ 1,866,623

$ 1,010,127
702,092

$ 1,712,219

$ 1,326,253
499,589

$ 1,825,842

$ 1,326,884
499,589

$ 1,826,473

Fixed-rate debt
Variable-rate debt

10. derivatives

The following table sets forth the key terms and fair values of our interest rate swap contracts:

Notional
Amount

$  50,000
25,000
25,000
50,000
100,000
120,000
100,000

One-Month
LIBOR base

5.0360%
5.2320%
5.2320%
4.3300%
2.5100%
1.7600%
1.9750%

Effective
Date

3/28/2006
5/1/2006
5/1/2006
10/23/2007
11/3/2008
1/2/2009
1/1/2010

Expiration
Date

3/30/2009
5/1/2009
5/1/2009
10/23/2009
12/31/2009
5/1/2012
5/1/2012

Fair Value at December 31,

2008

$  (540)
(385)
(385)
(1,449)
(1,656)
(478)
(209)

$ (5,102)

2007

$  (765)
(486)
(486)
(596)
N/A
N/A
N/A

$ (2,333)

These amounts are included on our Consolidated Balance Sheets as other liabilities.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 72

Page 73

  
  
notes continued

We designated these derivatives as cash flow hedges. These contracts hedge the risk of changes in interest rates 
on certain of our one-month LIBOR-based variable rate borrowings. 

The table below sets forth our accounting application of changes in derivative fair values:

For the Years Ended 
December 31,

2008

2007

2006

$(2,769)

$(2,025)

$(308)

Decrease in fair value applied to AOCL(1) and minority interests

(1) AOCL is defined in Note 2.

11. shareholders’ equity

Preferred Shares

At December 31, 2008, we had 15.0 million preferred shares of beneficial interest (“preferred shares”) authorized 
at $0.01 par value. The table below sets forth additional information pertaining to our preferred shares of 
 beneficial interest:

Series

Series G
Series H
Series J
Series K

# of  
Shares  
Issued

2,200,000
2,000,000
3,390,000
531,667

Aggregate 
Liquidation 
Preference

$  55,000
50,000
84,750
26,583

8,121,667

$ 216,333

Month of 
Issuance

August 2003
December 2003
July 2006
January 2007

Annual 
Dividend 
Yield

8.000%
7.500%
7.625%
5.600%

Annual 
Dividend 
Per Share 

$ 2.00000
$ 1.87500
$ 1.90625
$ 2.80000

Earliest 
Redemption 
Date

8/11/2008
12/18/2008
7/20/2011
1/9/2017

Each series of preferred shares is nonvoting and 
redeemable for cash in the amount of its liquidation 
preference at our option on or after the earliest 
redemption date. Holders of all preferred shares are 
entitled to cumulative dividends, payable quarterly  
(as and if declared by the Board of Trustees). In the 
case of each series of preferred shares, there is a series 
of preferred units in the Operating Partnership owned 
by us that carries substantially the same terms.

On January 9, 2007, we issued the Series K Cumulative 
Redeemable Preferred Shares (“Series K Preferred 
Shares”) in the Nottingham Acquisition at a value  
of, and liquidation preference equal to, $50 per share. 
Series K Preferred Shares are nonvoting and are 
 convertible, subject to certain conditions, into 
 common shares on the basis of 0.8163 common  
shares for each preferred share, in accordance with  
the terms of the Articles Supplementary describing  
the Series K Preferred Shares. 

Common Shares

In connection with the Nottingham Acquisition in 
January 2007, we issued 3.2 million common shares  
at a value of $49.57 per share.

In September 2008, we issued 3.7 million common 
shares at a public offering price of $39 per share. We 
contributed the net proceeds after underwriting dis-
count but before offering costs totaling $139,203  
to our Operating Partnership in exchange for 3.7  
million common units.

Common units in our Operating Partnership were 
converted into common shares on the basis of one 
common share for each common unit in the amount  
of 258,917 in 2008, 554,221 in 2007 and 245,793  
in 2006. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 72

Page 73

  
 
Accumulated Other Comprehensive Loss

The table below sets forth activity in the accumulated 
other comprehensive loss component of shareholders’ 
equity:

For the Years Ended December 31, 

2008

2007

2006

$     (2,372)

$     (693)

$     (482)

(2,430)

(1,731)

(262)

53

52

51

Beginning balance
Unrealized loss on  
  derivatives, net of  
  minority interests
Realized loss on  
  derivatives, net of  
  minority interests

Ending balance

$     (4,749)

$   (2,372)

$     (693)

The table below sets forth our comprehensive income:

For the Years Ended December 31,

2008

2007

2006

$58,668

$34,784

$49,227

(2,430)

(1,731)

(262)

53

52

51

Net income
Unrealized loss on  
  derivatives, net of  
  minority interests
Realized loss on  
  derivatives, net of  
  minority interests

Total comprehensive 

income

$56,291

$33,105

$49,016

12. share-based ComPensation 
   and emPloyee benefit Plans

Share-Based Compensation Plans

In 1993, we adopted a plan for our Trustees under 
which we have 75,000 options reserved for issuance. 
As of December 31, 2007, there were no remaining 
awards available for future grant under this plan.

In March 1998, we adopted a long-term incentive plan 
for our Trustees and employees. This plan, which 
expired in March 2008, provided for the award of 
options, restricted shares and dividend equivalents. 
We were authorized to issue awards under the plan 
amounting to no more than 13% of the total of (1) our 
common shares outstanding plus (2) the number of 
shares that would be outstanding upon redemption of 
all units of the Operating Partnership or other securities 
that are convertible into our common shares. 

At our 2008 Annual Meeting of Shareholders held  
on May 22, 2008, our shareholders approved the 2008 
Omnibus Equity and Incentive Plan, under which we 
may issue equity-based awards to officers, employees, 
non-employee trustees and any other key persons of 
us and our subsidiaries, as defined in the plan. The 
plan provides for a maximum of 2,900,000 common 
shares of beneficial interest to be issued in the form of 
share options, share appreciation rights, deferred share 
awards, restricted share awards, unrestricted share 
awards, performance shares, dividend equivalent rights 
and other equity-based awards and for the granting of 
cash-based awards. This plan expires on May 22, 2018.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 74

Page 75

 
 
notes continued

Trustee options under these plans become exercisable beginning on the first anniversary of their grant. The 
 vesting periods for employees’ options under this plan vary from award to award. Options expire ten years after 
the date of grant. Restricted shares vest based on increments and over periods of time set forth under the terms  
of the respective awards. Shares for each of our share-based compensation plans are issued under registration 
statements on Form S-8 that became effective upon filing with the Securities and Exchange Commission. 

The following table summarizes option transactions under the plans described above:

Range of 
Exercise Price 
per Share

Weighted Average 
Exercise Price  
per Share

Weighted Average 
Remaining 
Contractual Term 
(in Years)

Aggregate 
Intrinsic 
Value

Outstanding at December 31, 2005
Granted—2006
Forfeited/Expired—2006
Exercised—2006

Outstanding at December 31, 2006
Granted—2007
Forfeited/Expired—2007
Exercised—2007

Outstanding at December 31, 2007
Granted—2008
Forfeited/Expired—2008
Exercised—2008

Shares 

2,709,927
503,800
(68,107)
(589,101)

2,556,519
297,691
(99,177)
(613,689)

2,141,344
40,000
(51,786)
(180,239)

$5.63–$36.08
$36.24–$50.59
$13.60–$47.79
$5.63–$34.76

$7.38–$50.59
$42.40–$57.00
$20.34–$53.16
$5.25–$44.73

$7.38–$57.00
$37.81
$8.00–$53.16
$7.63–$34.76

Outstanding at December 31, 2008

1,949,319

$7.38–$57.00

Exercisable at December 31, 2006

Exercisable at December 31, 2007

1,753,428

1,507,876

Exercisable at December 31, 2008

1,657,956

(1)

(2)

(3)

Options expected to vest

272,240

$36.24–$57.00

$ 14.41
$ 42.84
$ 33.43
$ 11.49

$ 20.18
$ 47.87
$ 42.31
$ 12.18

$ 25.29
$ 37.81
$ 43.07
$ 15.72

$ 25.96

$ 12.65

$ 18.05

$ 22.60

$ 45.00

6

5

5

8

$  22,639

$ 18,744

$ 18,744

$ 

    —

(1)  234,082 of these options had an exercise price ranging from $7.38 to $7.99; 754,068 had an exercise price ranging from $8.00 to $10.99; 456,732 had an 
exercise price ranging from $11.00 to $16.99; 198,241 had an exercise price ranging from $17.00 to $25.99; and 110,305 had an exercise price range of  
$26.00 to $36.08.

(2)  232,982 of these options had an exercise price ranging from $7.38 to $7.99; 291,762 had an exercise price ranging from $8.00 to $10.99; 406,211 had an 
exercise price ranging from $11.00 to $16.99; 237,382 had an exercise price ranging from $17.00 to $25.99; 163,648 had an exercise price ranging from  
$26.00 to $34.99; 130,265 had an exercise price ranging from $35.00 to $43.99; and 45,626 had an exercise price ranging from $44.00 to $52.99. 

(3)  228,732 of these options had an exercise price ranging from $7.38 to $7.99; 195,950 had an exercise price ranging from $8.00 to $10.99; 395,217 had an 
exercise price ranging from $11.00 to $16.99; 226,805 had an exercise price ranging from $17.00 to $25.99; 210,373 had an exercise price ranging from 
$26.00 to $34.99; 242,082 had an exercise price ranging from $35.00 to $43.99; and 158,797 had an exercise price ranging from $44.00 to $57.00.

The aggregate intrinsic value of options exercised was $3,682 in 2008, $23,627 in 2007 and $19,748 in 2006. 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 74

Page 75

  
We realized windfall tax benefits of $1,053 in 2008 
and $562 in 2006 on options exercised and vesting 
restricted shares in connection with employees of our 
subsidiaries that are subject to income tax. We did not 
realize a windfall tax benefit in 2007 because COMI 
had	a	net	operating	loss	carryforward	for	tax	purposes;	
had COMI not had a net operating loss carryforward 
in 2007, we would have recognized a windfall tax 
 benefit of $1,691 in 2007. 

The table below sets forth information relating to 
expenses from share-based compensation included  
in our Consolidated Statements of Operations:

For the Years Ended 
December 31, 

2008

2007

2006

Increase in general and  
  administrative expenses $  6,324

$ 4,461

$ 2,659

Increase in construction  
 contract and other  
service operations 
expenses

Share-based  
  compensation expense
Income taxes
Minority interests

Net share-based  
  compensation expense

1,943

1,749

964

8,267
(45)
(1,224)

6,210
(150)
(946)

3,623
(107)
(617)

$  6,998

$ 5,114

$ 2,899

We also capitalized share-based compensation costs  
of approximately $769 in 2008, $433 in 2007 and $212 
in 2006.

The amounts included in our Consolidated Statements 
of Operations for share-based compensation reflected 
an estimate of pre-vesting forfeitures of 7% for options 
and a range of 2% to 5% for restricted shares for 2008 
and 2007 and 5% for all share-based awards in 2006.

We computed share-based compensation expense 
under the fair value method using the Black-Scholes 
option-pricing	model;	the	weight	average	assumptions	
we used in that model are set forth below:

For the Years Ended 
December 31,

  2008(4)

2007

2006

Weighted average fair value  
  of grants on grant date
Risk-free interest rate(1)
Expected life-years
Expected volatility(2)
Expected dividend yield(3)

$8.00

3.62%
6.52

$9.58
4.64%
6.15
24.22% 21.46% 23.69%
3.82%
3.24%

$8.99
4.91%
6.82

3.07%

(1)  Ranged from 4.53% to 4.91% in 2007 and from 4.38%  

to 5.30% in 2006.

(2)  Ranged from 21.28% to 21.75% in 2007 and from 22.37%  

to 25.11% in 2006.

(3)  Ranged from 3.12% to 3.35% in 2007 and from 3.36%  

to 4.25% in 2006.

(4)  Since one group of grants sharing the same terms took place  
in 2008, the assumptions used for such grants were uniform.

The following table summarizes restricted share trans-
actions under the plans described above: 

Weighted 
Average 
Grant Date 
Fair Value

$ 19.88
$ 42.65
$ 23.67
$ 17.16

$ 29.51
$ 49.50
$ 50.57
$ 22.54

$ 38.50
$ 31.76
$ 36.07
$ 35.32

Shares 

395,609
163,420
(20,822)
(124,517)

413,690
141,359
(1,917)
(137,227)

415,905
308,569
(19,851)
(142,195)

Unvested at December 31, 2005
Granted
Forfeited
Vested

Unvested at December 31, 2006
Granted
Forfeited
Vested

Unvested at December 31, 2007
Granted
Forfeited
Vested

Unvested at December 31, 2008

562,428

$ 35.69

Restricted shares expected to vest

535,721

The fair value of restricted shares that vested was 
$5,023 in 2008, $6,938 in 2007 and $5,319 in 2006.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 76

Page 77

 
notes continued

As of December 31, 2008, there was $1,300 of unrec-
ognized compensation cost related to unvested options 
that is expected to be recognized over a weighted 
average period of approximately one year. As of 
December 31, 2008, there was $12,929 of unrecog-
nized compensation cost related to unvested restricted 
shares that is expected to be recognized over a 
weighted average period of approximately two years.

fully vested. Deferred compensation related to the 
Company’s matching contribution is charged to expense 
and vests in annual one-third increments. Once an 
employee has been with us for three years, all matching 
contributions are fully vested. The balance of the plan, 
which was fully funded, totaled $4,549 at December 31, 
2008 and $6,014 at December 31, 2007, and is included 
in the accompanying Consolidated Balance Sheets.

401(k) Plan

13. oPerating leases

We lease our properties to tenants under operating 
leases with various expiration dates extending to  
the year 2025. Gross minimum future rentals on 
 noncancelable leases in our consolidated properties  
at December 31, 2008 were as follows:

For the Years Ended December 31,

2009
2010
2011
2012
2013
Thereafter

  Total

$  321,815
270,435
228,894
192,495
146,578
506,733

$ 1,666,950

We consider a lease to be noncancelable when a tenant 
(1) may not terminate its lease obligation early or  
(2) may terminate its lease obligation early in exchange 
for a fee or penalty that we consider material enough 
such that termination would be highly unlikely. 

We have a 401(k) defined contribution plan covering 
substantially all of our employees that permits par-
ticipants to defer up to a maximum of 15% of their 
compensation. We match a participant’s contribution 
in an amount equal to 50% of the participant’s elective 
deferral for the plan year up to a maximum of 6% of  
a participant’s annual compensation. Employees’ 
 contributions are fully vested and our matching 
 contributions vest in annual one-third increments. 
Once an employee has been with us for three years,  
all matching contributions are fully vested. We fund 
all contributions with cash. Our matching contribu-
tions under the plan totaled approximately $641 in 
2008, $442 in 2007 and $538 in 2006. The 401(k) 
plan is fully funded at December 31, 2008. 

Deferred Compensation Plan

We have a non-qualified elective deferred compensation 
plan for certain members of our management team that 
permits participants to defer up to 100% of their com-
pensation on a pre-tax basis and receive a tax-deferred 
return on such deferrals. We match the participant’s 
contribution in an amount equal to 50% of the par-
ticipant’s elective deferral for the plan year up to a 
maximum of 6% of a participant’s annual compensation 
after deducting contributions, if any, made under our 
401(k) plan. Deferred compensation related to an 
employee contribution is charged to expense and is 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 76

Page 77

14. suPPlemental information to statements of Cash flows

Interest paid, net of capitalized interest

Income taxes paid

Supplemental schedule of non-cash investing and financing activities:
Debt assumed in connection with acquisitions

Issuance of common shares in connection with acquisition of properties  

(before transaction costs)

Issuance of preferred shares in connection with acquisition of properties  

(before transaction costs)

Proceeds from sales of properties invested in restricted cash account

Restricted cash used in connection with acquisitions of properties

Issuance of common units in the Operating Partnership in connection with  
  acquisition of properties (before transaction costs)

Note receivable assumed upon sale of real estate property

For the Years Ended December 31, 

2008

2007

2006

$  82,015

$  84,278

$ 68,617

$  1,115

$ 

123

$ 

54

$ 

$ 

$ 

$ 

$ 

$ 

$ 

— $  38,996

$ 39,011

— $ 156,691

$  —

— $  26,583

$  —

— $ 

701

$ 33,730

— $  20,827

$  —

— $  12,125

$  7,497

— $  3,582

$  —

(Decrease) increase in accrued capital improvements and leasing costs

$ (14,799)

$  8,638

$ 18,181

Consolidation of real estate joint venture:
  Real estate assets
  Prepaid and other assets
  Minority interest

  Net adjustment

Reclassification of operating assets to investment assets in connection with  
  consolidation of real estate joint ventures

Property acquired through lease arrangement included in rents received  

in advance and security deposits

$  14,208
(10,859)
(3,349)

$  3,864
1,021
(4,885)

$  —
—
—

$ 

$ 

$ 

— $ 

— $  —

— $  16,725

$  —

— $ 

711

$  1,282

Decrease in fair value of derivatives applied to AOCL and minority interests

$  (2,769)

$  (2,025)

$ 

(308)

Adjustments to minority interests resulting from changes in ownership of  
  Operating Partnership by COPT

Dividends/distribution payable

$  16,716

$  29,761

$ 16,255

$  25,794

$  22,441

$ 19,164

Decrease in minority interests and increase in shareholders’ equity in connection  
  with the conversion of common units into common shares

$  7,508

$  25,408

$ 11,078

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 78

Page 79

  
 
 
 
 
notes continued

15. information by business segment

As	of	December	31,	2008,	we	had	nine	primary	office	property	segments:	Baltimore/Washington	Corridor;	
Northern	Virginia;	Suburban	Baltimore;	Colorado	Springs;	Suburban	Maryland;	Greater	Philadelphia;	St.	Mary’s	
&	King	George	Counties;	San	Antonio;	and	Northern/Central	New	Jersey.	

The table below reports segment financial information. Our segment entitled “Other” includes assets and operations 
not specifically associated with the other defined segments, including corporate assets and investments in uncon-
solidated entities. We measure the performance of our segments based on total revenues less property operating 
expenses, a measure we define as net operating income (“NOI”). We believe that NOI is an important supplemental 
measure of operating performance for a REIT’s operating real estate because it provides a measure of the core 
operations	that	is	unaffected	by	depreciation,	amortization,	financing	and	general	and	administrative	expenses;	
this measure is particularly useful in our opinion in evaluating the performance of geographic segments,  
same-office property groupings and individual properties.

Baltimore/ 
Washington 
Corridor

Northern 
Virginia

Suburban 
Baltimore

Colorado 
Springs

Suburban 
Maryland 

Greater 
Philadelphia 

St. Mary’s 
& King 
George 
Counties 

Northern/ 
Central 
New 
Jersey

San 
Antonio 

Intersegment 
Eliminations

Total

Other

Year Ended  
  December 31, 2008
Revenues
Property operating  
  expenses

$  186,459 $  77,017 $  54,799 $  20,372 $  19,346

$ 10,025

$ 12,939 $  9,311 $  2,567 $  10,708

$ (3,552)

$  399,991

65,474

29,520

23,978

7,284

7,102

202

3,245

2,425

344

3,192

(1,417)

141,349

NOI

$  120,985 $  47,497 $  30,821 $  13,088 $  12,244

$  9,823

$  9,694 $  6,886 $  2,223 $  7,516

$ (2,135)

$  258,642

Additions to  
  commercial real  
  estate properties

$ 

87,246 $  5,449 $  17,132 $  73,526 $  39,468

$  1,575

$  2,801 $ 34,973 $ 

43 $  13,146

$ 

(72)

$  275,287

Segment assets at  
  December 31, 2008 $ 1,264,170 $ 464,202 $ 438,818 $ 252,129 $ 154,983

$ 95,783

$ 95,244 $ 96,643 $ 21,179 $ 230,711

$  (995)

$ 3,112,867

Year Ended  
  December 31, 2007
Revenues
Property operating  
  expenses

$ 

173,509 $  72,402 $  54,570 $  15,304 $  16,675

$  10,025

$  12,665 $  7,370 $  4,846 $ 

5,586

$ (3,430)

$ 

369,522

56,871

25,893

22,034

5,912

6,681

131

3,064

1,578

2,053

4,774

(3,862)

125,129

NOI

$ 

116,638 $  46,509 $  32,536 $ 

9,392 $ 

9,994

$  9,894

$  9,601 $  5,792 $  2,793 $ 

812

$  432

$ 

244,393

Additions to  
  commercial real  
  estate properties

Segment assets at  
  December 31, 2007

Year Ended  
  December 31, 2006
Revenues
Property operating  
  expenses

$ 

159,759 $  23,645 $  280,234 $  49,924 $ 

2,927

$  1,236

$  1,040 $  3,204 $ 

647 $  61,046

$ (1,955)

$ 

581,707

$  1,215,497 $  482,570 $  448,093 $  181,641 $  116,812

$  96,051

$  95,208 $  59,295 $  40,672 $  197,002

$ 

(988)

$  2,931,853

$ 

147,630 $  63,516 $  28,571 $ 

9,774 $  15,316

$  10,025

$  12,087 $  7,441 $  12,296 $ 

581

$ (2,522)

$ 

304,715

45,708

22,729

11,896

3,663

5,720

174

3,125

1,535

3,313

2,243

(3,741)

96,365

NOI

$ 

101,922 $  40,787 $  16,675 $ 

6,111 $ 

9,596

$  9,851

$  8,962 $  5,906 $  8,983 $ 

(1,662)

$  1,219

$ 

208,350

Additions to  
  commercial real  
  estate properties

Segment assets at  
  December 31, 2006

$ 

191,999 $  21,640 $ 

4,250 $  66,628 $ 

4,664

$  1,202

$  1,823 $  8,814 $  1,398 $  39,464

$ (1,720)

$ 

340,162

$  1,084,348 $  473,539 $  159,771 $  135,115 $  117,573

$  97,792

$  97,661 $  52,661 $  48,499 $  155,083

$ (2,441)

$  2,419,601

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 78

Page 79

  
The following table reconciles our segment revenues 
to total revenues as reported on our Consolidated 
Statements of Operations:

For the Years Ended  
December 31,

2008

2007

2006

$ 399,991 $ 369,522 $ 304,715

186,608

37,074

52,182

1,777

4,151

7,902

(358)

(3,608)

(13,271)

Segment revenues
Construction  
  contract revenues
Other service  
  operations revenues
Less: Revenues  

from discontinued  
  operations (Note 17)

Total revenues

$ 588,018 $ 407,139 $ 351,528

As previously discussed, we own 100% of a number of 
entities that provide real estate services such as prop-
erty management, construction and development and 
heating and air conditioning services primarily for our 
properties but also for third parties. The revenues and 
costs associated with these services include subcontracted 
costs that are reimbursed to us by the  customer at no 
mark up. As a result, the operating margins from these 
operations are small relative to the revenue. We use the 
net of such revenues and expenses to evaluate the per-
formance of our service operations since we view such 
service operations to be an ancillary component of our 
overall operations that we expect to continue to be a small 
contributor to our operating income relative to our 
real estate operations. The table below sets forth the 
computation of our income from service operations:

The following table reconciles our segment property 
operating expenses to property operating expenses as 
reported on our Consolidated Statements of Operations:

For the Years Ended  
December 31,

2008

2007

2006

For the Years Ended  
December 31,

2008

2007

2006

Construction  
  contract revenues
Other service  
  operations revenues
Construction  
  contract expenses
Other service 
  operations expenses

$ 186,608 $  37,074 $  52,182

1,777

4,151

7,902

(182,111)

(35,723)

(49,961)

(2,031)

(4,070)

(7,384)

$ 141,349 $ 125,129 $  96,365

Income from  

service operations

$  4,243 $  1,432 $  2,739

Segment property  
  operating expenses
Less: Property  
  expenses from  
 discontinued  

  operations (Note 17)

(210)

(1,871)

(3,277)

Total property  
  operating expenses

$ 141,139 $ 123,258 $  93,088

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 80

Page 81

 
 
 
notes continued

The following table reconciles our NOI for reportable 
segments and income from service operations to 
income from continuing operations as reported on  
our Consolidated Statements of Operations: 

administrative expense, income taxes and minority 
interests because these items represent general 
 corporate items not attributable to segments.

For the Years Ended  
December 31,

2008

2007

2006

NOI for  

reportable segments $ 258,642 $  244,393 $ 208,350

Income from  

service operations

4,243

1,432

2,739

Interest and  
  other income
Gain on early  

 extinguishment  
of debt

Equity in loss of  
  unconsolidated  
  entities
Income tax expense

Other adjustments:
Depreciation and  
  other amortization  
  associated with real  
  estate operations
General and  

 administrative 
expenses

Interest expense  
 on continuing 
operations

Minority interests  
 in continuing 
operations

NOI from  

 discontinued 
operations

Income from  
  continuing  
  operations

2,070

3,030

1,077

10,376

—

—

(147)
(201)

(224)
(569)

(92)
(887)

(102,720)   (104,700)

(76,344)

(25,329)

(21,704)

(18,048)

(83,646)

(85,576)

(72,984)

(7,488)

(3,331)

(3,742)

(148)

(1,737)

(9,994)

$  55,652 $  31,014 $  30,075

The accounting policies of the segments are the same 
as those previously disclosed for Corporate Office 
Properties Trust and subsidiaries, where applicable. 
We did not allocate interest expense, amortization of 
deferred financing costs and depreciation and other 
amortization to segments since they are not included in 
the measure of segment profit reviewed by management. 
We also did not allocate construction contract revenues, 
other service operations revenues, construction con-
tract expenses, other service operations expenses, 
equity in loss of unconsolidated entities, general and 

16. inCome taxes

Corporate Office Properties Trust elected to be 
treated as a REIT under Sections 856 through 860 of 
the Internal Revenue Code. To qualify as a REIT, we 
must meet a number of organizational and operational 
requirements, including a requirement that we distrib-
ute at least 90% of our adjusted taxable income to our 
shareholders. As a REIT, we generally will not be sub-
ject to Federal income tax on taxable income that we 
distribute to our shareholders. If we fail to qualify as  
a REIT in any tax year, we will be subject to Federal 
income tax on our taxable income at regular corporate 
rates and may not be able to qualify as a REIT for  
four subsequent tax years.

The differences between taxable income reported on our 
income tax return (estimated 2008 and actual 2007 and 
2006) and net income as reported on our Consolidated 
Statements of Operations are set forth below:

For the Years  
Ended December 31, 

2008 

2007 

2006 

(Estimated) 

$  58,668 $ 34,784 $ 49,227

(13,458)

(6,128)

(8,186)

2,053

(18,685)

(17,079)

1,007

194

(118)

(831)

6,451

(10,690)

(2,398)
779

(1,476)
572

(2,288)
887

36,717

44,215

26,554

277

342

709

(973)
(2,674)

(1,119)
(1,233)

1,862
696

Net income
Adjustments:

 Rental revenue  
recognition
 Compensation  
  expense recognition
 Operating  
  expense recognition
 Gain on sales  
  of properties
 Losses from  

service operations
Income tax expense
 Depreciation  
  and amortization
 Income from  

 unconsolidated 
entities
 Minority  

interests, gross

  Other

Taxable income

$  79,167 $ 57,917 $ 41,574

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 80

Page 81

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
For Federal income tax purposes, dividends to  shareholders may be characterized as ordinary income, capital 
gains or return of capital. The characterization of dividends declared on our common and preferred shares  
during each of the last three years was as follows:

Ordinary income
Long term capital gain
Return of capital

Common Shares

Preferred Shares

For the Years Ended December 31,

For the Years Ended December 31,

2008

94.0%
1.5%
4.5%

2007

59.5%
16.4%
24.1%

2006

50.3%
7.2%
42.5%

2008

98.4%
1.6%
0.0%

2007

78.4%
21.6%
0.0%

2006

87.4%
12.6%
0.0%

We distributed all of our REIT taxable income in 
2008, 2007 and 2006 and, as a result, did not incur 
Federal income tax in those years on such income. 
However, we did incur income tax totaling $1,112 in 
2007 on built-in gain on properties, which is included 
in the Consolidated Statements of Operations as 
 follows: $1,068 in gain in sales of real estate, net of 
minority	interests	and	income	taxes;	and	$44	in	
 discontinued operations net of minority interests  
and income taxes.

We own a taxable REIT subsidiary (“TRS”) that is 
 subject to Federal and state income taxes. Our TRS had 
income before income taxes under GAAP of $2,015 in 
2008, $1,476 in 2007 and $2,288 in 2006. Our TRS’ 
provision for income tax consisted of the following:

Deferred
  Federal
  State

Current
  Federal
  State

For the Years Ended 
December 31,

2008

2007

2006

$352
26

$468
104

$641
141

378

572

782

328
73

401

—
—

86
19

— 105

Total income tax expense

$779

$572

$887

Reported on line entitled  

income taxes

Reported on line entitled gain 
 on sales of real estate, net

$201

$569

$887

578

3

—

Total income tax expense

$779

$572

$887

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 82

Page 83

  
 
 
notes continued

A reconciliation of our TRS’ Federal statutory rate to 
the effective tax rate for income tax reported on our 
Statements of Operations is set forth below:

17. disContinued oPerations

Income from discontinued operations includes revenues 
and expenses associated with the following:

For the Years Ended
December 31,

2008

2007

2006

34.0% 34.0% 34.0%

4.6%
0.6%

4.6%
0.1%

4.6%
0.2%

•	 	two	Lakeview	at	the	Greens	properties	that	 

were	sold	on	February	6,	2006;

•	 	68	Culver	Road	property	that	was	sold	 

on	March	8,	2006;

•	 	710	Route	46	property	that	was	sold	 

on	July	26,	2006;

•	 	230	Schilling	Circle	property	that	was	sold	 

Income taxes at U.S.  

statutory rate

State and local, net of U.S.  
  Federal tax benefit
Other

Effective tax rate

39.2% 38.7% 38.8%

on	August	9,	2006;

Items in our TRS contributing to temporary differ-
ences that lead to deferred taxes include net operating 
losses that are not deductible until future periods, 
depreciation and amortization, share-based com-
pensation, certain accrued compensation and 
 compensation paid in the form of contributions to  
a deferred nonqualified compensation plan.

We are subject to certain state and local income and 
franchise taxes. The expense associated with these 
state and local taxes is included in general and admin-
istrative expense on our Consolidated Statements of 
Operations. We did not separately state these amounts 
on our Consolidated Statements of Operations 
because they are insignificant. 

•	 	7	Centre	Drive	property	that	was	sold	 

on	August	30,	2006;	

•	 	Brown’s	Wharf	property	that	was	sold	 

on	September	28,	2006;

•	 	2	and	8	Centre	Drive	properties	that	were	sold	

on	September	7,	2007;	

•	 	7321	Parkway	property	that	was	sold	 

on	September	7,	2007;	

•	 	10552	Philadelphia	Road	property	that	was	sold	

on	December	27,	2007;	

•	 	429	Ridge	Road	property	that	was	sold	 

on January 31, 2008 (this property was classified 
as	held	for	sale	as	of	December	31,	2007);

•	 	47	Commerce	Drive	property	that	was	sold	 

on	April	1,	2008;	and

•	 	7253	Ambassador	Road	property	that	 

was sold on June 2, 2008.

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 82

Page 83

 
Certain reclassifications have been made in prior 
 periods to reflect discontinued operations consistent 
with the current period presentation. The table  
below sets forth the components of income from 
 discontinued operations:

For the Years  
Ended December 31, 

2008

2007

2006

Revenue from  

real estate operations

$  358 $  3,608

$ 13,271

Expenses from  

real estate operations:
 Property operating  
  expenses
 Depreciation  
  and amortization
Interest expense

  Other

 Expenses from real  
  estate operations

Income from discontinued  
 operations before gain  
on sales of real estate 
and minority interests
Gain on sales of real estate
Income taxes
Minority interests in  
  discontinued operations

Income from discontinued  

 operations, net of  
minority interests

210

1,871

3,277

52
51
—

1,560
1,382
—

2,287
2,417
—

313

4,813

7,981

45
2,526
—

(1,205)
3,871
(44)

5,290
17,031
—

(392)

(412)

(3,901)

$ 2,179 $  2,210

$ 18,420

18. Commitments 

   and ContingenCies

In the normal course of business, we are involved in 
legal actions arising from our ownership and adminis-
tration of properties. Management does not anticipate 
that any liabilities that may result will have a materially 
adverse effect on our financial position, operations or 
liquidity. We are subject to various Federal, state and 
local environmental regulations related to our property 
ownership and operation. We have performed environ-
mental assessments of our properties, the results of 
which have not revealed any environmental liability 
that we believe would have a materially adverse effect 
on our financial position, operations or liquidity.

Acquisitions

At December 31, 2008, we were obligated to make an 
additional cash payment of up to $4,000 in a future year 
in connection with our acquisition of the land at the 
former Fort Ritchie United States Army base in Cascade, 
Washington County, Maryland. This payment could be 
reduced by a range of $750 to the full $4,000 depend-
ing on (1) defined levels of job creation resulting from 
the future development of the property taking place and 
(2) future real estate taxes generated by the property.

Joint Ventures

As part of our obligations under the partnership agree-
ment of Harrisburg Corporate Gateway Partners, LP, 
we agreed to indemnify the partnership’s lender for 
80% of losses under standard nonrecourse loan guar-
antees (environmental indemnifications and guarantees 
against fraud and misrepresentation) during the period 
of time in which we manage the partnership’s proper-
ties;	we	do	not	expect	to	incur	any	losses	under	these	
loan guarantees.

We are party to a contribution agreement that formed 
a joint venture relationship with a limited partnership 
to develop up to 1.8 million square feet of office space 
on 63 acres of land located in Hanover, Maryland. 
Under the contribution agreement, we agreed to fund 
up to $2,200 in pre-construction costs associated with 
the property. As we and the joint venture partner agree 

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 84

Page 85

 
 
 
 
 
 
 
 
 
 
notes continued

Environmental Indemnity Agreement

We agreed to provide certain environmental indemni-
fications in connection with a lease of three properties 
in our New Jersey region. The prior owner of the 
properties, a Fortune 100 company which is responsi-
ble for groundwater contamination at such properties, 
previously agreed to indemnify us for (1) direct losses 
incurred in connection with the contamination and (2) 
its failure to perform remediation activities required 
by the State of New Jersey, up to the point that the 
state declares the remediation to be complete. Under 
the lease agreement, we agreed to the following:

•	 	to	indemnify	the	tenant	against	losses	covered	
under the prior owner’s indemnity agreement  
if the prior owner fails to indemnify the tenant 
for such losses. This indemnification is capped  
at $5,000 in perpetuity after the State of New 
Jersey	declares	the	remediation	to	be	complete;

•	 	to	indemnify	the	tenant	for	consequential	dam-
ages (e.g., business interruption) at one of the 
buildings in perpetuity and another of the build-
ings for 15 years after the tenant’s acquisition of 
the property from us, if such acquisition occurs. 
This	indemnification	is	capped	at	$12,500;	and	

•	 	to	pay	50%	of	additional	costs	related	to	con-

struction and environmental regulatory activities 
incurred by the tenant as a result of the indemni-
fied environmental condition of the properties. 
This indemnification is capped at $300 annually 
and $1,500 in the aggregate.

to proceed with the construction of buildings in the 
future, our joint venture partner would contribute land 
into newly-formed entities and we would make additional 
cash capital contributions into such entities to fund 
development and construction activities for which 
financing is not obtained. We owned a 50% interest in 
one such joint venture as of December 31, 2008.

We may be required to make our pro rata share of 
additional investments in our real estate joint ventures 
(generally based on our percentage ownership) in the 
event that additional funds are needed. In the event 
that the other members of these joint ventures do not 
pay their share of investments when additional funds 
are needed, we may then deem it appropriate to make 
even larger investments in these joint ventures.

Office Space Operating Leases

We are obligated as lessee under three operating leases 
for office space. Future minimum rental payments due 
under the terms of these leases as of December 31, 
2008 follow:

  2009
2010
2011

$178
135
57

$370

Other Operating Leases

We are obligated under various leases for vehicles and 
office equipment. Future minimum rental payments 
due under the terms of these leases as of December 31, 
2008 follow:

  2009
2010
2011
2012

$426
204
69
15

$714

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 84

Page 85

notes continued

19. quarterly data (unaudited)

The tables below set forth selected quarterly information for the years ended December 31, 2008 and 2007. 
Certain of the amounts below have been reclassified to conform to the current period presentation of our 
Consolidated Financial Statements. In addition, revenues for the three months ended March 31, 2008 and  
June 30, 2008 include adjustments of $1,622 and $7,280, respectively, representing increases to construction 
	contract	revenues	that	were	offset	by	an	equal	dollar	amount	of	increases	to	construction	contract	expenses;	 
these adjustments did not affect the operating income or net income previously reported on the Forms 10-q  
filed with respect to such periods and are not material to the financial statements.

Revenues

Operating income

For the Year Ended December 31, 2008

First  
Quarter

Second  
Quarter

Third  
Quarter

Fourth  
Quarter

$ 107,616

$ 120,370

$ 191,088

$ 168,944

$  31,742

$  33,496

$  35,891

$  33,559

Income from continuing operations

$  9,521

$  11,707

$  12,953

$  21,471

Income (loss) from discontinued operations

$  1,072

$  1,115

$ 

(8)

$ 

—

Net income
Preferred share dividends

$  11,395
(4,025)

$  12,853
(4,026)

$  12,949
(4,025)

$  21,471
(4,026)

Net income available to common shareholders

$  7,370

$  8,827

$  8,924

$  17,445

Basic earnings per share:

Income from continuing operations

  Net income available to common shareholders

Diluted earnings per share:

Income from continuing operations

  Net income available to common shareholders

Revenues

Operating income

Income from continuing operations

Income (loss) from discontinued operations

Net income
Preferred share dividends

$ 

$ 

$ 

$ 

0.13

0.16

0.13

0.15

$ 

$ 

$ 

$ 

0.16

0.19

0.16

0.18

$ 

$ 

$ 

$ 

0.19

0.19

0.19

0.19

$ 

$ 

$ 

$ 

0.34

0.34

0.34

0.34

For the Year Ended December 31, 2007

First 
quarter

Second 
quarter

Third 
quarter

Fourth 
quarter

$  98,705

$  101,321

$  104,263

$  102,850

$  26,429

$  28,867

$  30,605

$  31,783

$ 

$ 

$ 

5,411

136

5,547
(3,993)

$ 

$ 

$ 

8,112

(396)

$ 

$ 

8,347

2,046

7,877
(4,025)

$  11,431
(4,025)

$ 

$ 

$ 

9,144

424

9,929
(4,025)

Net income available to common shareholders

$ 

1,554

$ 

3,852

$ 

7,406

$ 

5,904

Basic earnings per share:

Income from continuing operations

  Net income available to common shareholders

Diluted earnings per share:

Income from continuing operations

  Net income available to common shareholders

$ 

$ 

$ 

$ 

0.03

0.03

0.03

0.03

$ 

$ 

$ 

$ 

0.09

0.08

0.09

0.08

$ 

$ 

$ 

$ 

0.11

0.16

0.11

0.15

$ 

$ 

$ 

$ 

0.12

0.13

0.11

0.12

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 86

Page 87

  
 
 
 
 
market for registrant’s common equity

Related Stockholder Matters and Issuer Repurchases of Equity Securities

market information

Our common shares trade on the New York Stock 
Exchange (“NYSE”) under the symbol “OFC.” The 
table below shows the range of the high and low sale 
prices for our common shares as reported on the NYSE, 
as well as the quarterly common share dividends per 
share declared: 

2007

First quarter 
Second quarter 
Third quarter 
Fourth quarter 

2008

First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

Price Range

Low

High

$ 44.85
$ 40.47
$ 35.21
$ 30.81

$ 56.45
$ 48.81
$ 44.63
$ 45.39

Price Range

Low

High

$ 25.43
$ 33.65
$ 32.00
$ 20.39

$ 36.16
$ 40.00
$ 43.50
$ 39.84

Dividends 
Per Share 

$  0.3100
$  0.3100
$  0.3400
$  0.3400

Dividends
Per Share

$ 0.3400
$ 0.3400
$ 0.3725
$ 0.3725

The number of holders of record of our common 
shares was 619 as of December 31, 2008. This number 
does not include shareholders whose shares are held of 
record by a brokerage house or clearing agency, but 
does include any such brokerage house or clearing 
agency as one record holder.

We will pay dividends at the discretion of our Board  
of Trustees. Our ability to pay cash dividends will be 
dependent upon: (i) the income and cash flow gener-
ated	from	our	operations;	(ii)	cash	generated	or	used	
by	our	financing	and	investing	activities;	and	(iii)	the	
annual distribution requirements under the REIT pro-
visions of the Code described above and such other 
factors as the Board of Trustees deems relevant. Our 
ability to make cash dividends will also be limited by 
the terms of our Operating Partnership Agreement 
and our financing arrangements, as well as limitations 
imposed by state law and the agreements governing 
any future indebtedness.

common shares performance graph

The graph and the table set forth below assume $100 was invested on December 31, 2003 in the common  
shares of Corporate Office Properties Trust. The graph and the table compare the cumulative return (assuming 
reinvestment of dividends) of this investment with a $100 investment at that time in the S&P 500 Index or the  
All Equity REIT Index of the National Association of Real Estate Investment Trusts (“NAREIT”):

NAREIT 

S&P 500

COPT

TOTAL RETURN PERFORMANCE

300

250

200

150

100

50

0

300

250

200

150

100

50

0

300

250

200

150

100

50

0

e
u
l
a
V
x
e
d
n
I

$300

250

200

150

100

50

0

Corporate Office Properties Trust
NAREIT All Equity REIT Index
S&P 500

12/31/03

12/31/04

12/31/05

12/31/06

12/31/07

12/31/08

Index

12/31/03

12/31/04

12/31/05

12/31/06

12/31/07

12/31/08

Corporate Office Properties Trust
S&P 500
NAREIT All Equity REIT Index

100.00
100.00
100.00

145.16
110.88
131.58

181.97
116.33
147.58

265.27
134.70
199.32

171.13
142.10
168.05

174.16
  89.53
104.65

Value at

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 86

Page 87

  
 
reConCiliation of diluted ffo Per share ComPonents to  
diluted ePs ComPonents (unaudited)

(Dollars and shares in thousands,  
except per share data)

Numerator for diluted 

Years Ended December 31,

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

EPS

$  8,952 $ 14,788 $ 11,332 $ 13,573 $ 13,711 $  7,650 $ 18,911 $ 24,416 $ 29,927 $  18,716 $  42,566

Add: Minority interests-
common units in the 
Operating Partnership
Add: Real estate-related 
depreciation and 
amortization

Add: Depreciation and 

amortization on uncon-
solidated real estate 
entities

Less: Depreciation and 

amortization allocable 
to minority interests in 
other consolidated 
entities

Less: Gain on sales of real 
estate, net of taxes, 
excluding development 
portion

Add: Convertible pre-

— 3,449

6,322

6,592

5,800

6,712

5,659

5,889

7,276

3,682

7,315

6,238

11,987

16,887

20,558

30,832

36,681

51,371

62,850

78,631

106,260

102,772

—

—

—

144

165

295

106

182

910

666

648

—

—

—

—

—

—

(86)

(114)

(163)

(188)

(270)

— (1,140)

(107)

(416)

(268)

(2,897)

(95)

(4,422) (17,644)

(3,827)

(2,630)

ferred share dividends

327

1,353

677

—

—

544

Add: Preferred unit 

distributions

Add: Expense on dilutive 

share-based 
compensation

Add: Repurchase of pre-
ferred units in excess  
of recorded book value
Add: Cumulative effect  
of accounting change

Numerator for diluted 

—

—

—

—

61

2,240

2,287

2,287

1,049

—

—

—

—

—

—

—

327

10

382

—

263

— 11,224

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

FFO per share

$ 15,517 $ 30,498 $ 37,351 $ 43,001 $ 52,854 $ 61,268 $ 76,248 $ 88,801 $ 98,937 $ 125,309 $ 150,401

Denominator for diluted 

EPS

19,237

22,574

19,213

21,623

24,547

28,021

34,982

38,997

43,262

47,630

48,865

— 4,883

9,652

9,437

9,282

8,932

8,726

8,702

8,511

8,296

8,107

Weighted average com-

mon units

Assumed conversion of 

weighted average con-
vertible preferred 
shares

Assumed conversion of 

weighted average con-
vertible preferred units

Dilutive effect of share-
based compensation 
awards

Denominator for diluted 

449

1,845

918

—

— 1,197

—

—

70

2,371

2,421

2,421

1,101

—

—

—

384

43

221

—

—

—

—

—

—

—

—

—

—

—

—

FFO per share

19,686

29,372

32,154

33,481

36,634

39,294

43,929

47,699

51,773

55,926

56,972

Diluted EPS
Diluted FFO per share

$  0.47 $  0.66 $  0.59 $  0.63 $  0.56 $  0.27 $  0.54 $  0.63 $  0.69 $ 
$  0.79 $  1.04 $  1.16 $  1.28 $  1.44 $  1.56 $  1.74 $  1.86 $  1.91 $ 

0.39 $ 
2.24 $ 

0.87
2.64

Corporate Office Properties Trust & Subsidiaries   2008 ANNUAL REPORT  Page 88

—

—

—

—

 
 
corporate information

EXECUTIVE OFFICERS
Randall M. Griffin
President and Chief Executive Officer

Roger A. Waesche, Jr.
Executive Vice President and  
Chief Operating Officer

Stephen E. Riffee
Executive Vice President and  
Chief Financial Officer

Karen M. Singer
Senior Vice President, General 
Counsel and Secretary

SERVICE COMPANY  
EXECUTIVE OFFICER
Wayne H. Lingafelter
President, COPT Development & 
Construction Services, LLC

EXECUTIVE OFFICES
Corporate Office Properties Trust
6711 Columbia Gateway Drive,  
Suite 300
Columbia, Maryland 21046
Telephone: (443) 285-5400
Facsimile: (443) 285-7650

REGISTRAR AND  
TRANSFER AGENT
Shareholders with questions concerning 
stock certificates, account information, 
dividend payments or stock transfers 
should contact our transfer agent:
Wells Fargo Bank, N.A.
Shareowner Services
161 North Concord Exchange
South St. Paul, Minnesota 55075
Toll-free: (800) 468-9716
www.wellsfargo.com/shareownerservices

LEGAL COUNSEL
Morgan, Lewis & Bockius
1701 Market Street
Philadelphia, Pennsylvania 19103

INDEPENDENT AUDITORS
PricewaterhouseCoopers LLP
100 East Pratt Street, Suite 1900
Baltimore, Maryland 21202

board of trustees

DIVIDEND REINVESTMENT PLAN
Registered shareholders may reinvest 
dividends through the Company’s  
dividend reinvestment plan. For more 
information, please contact Wells 
Fargo Shareowner Services at (800) 
468-9716.

ANNUAL MEETING
The annual meeting of the shareholders 
will be held at 9:30 a.m. on Thursday, 
May 14, 2009, at the corporate head-
quarters of Corporate Office Properties 
Trust at 6711 Columbia Gateway Drive, 
Suite 300, Columbia, Maryland 21046.

INVESTOR RELATIONS
For help with questions about the 
Company, or for additional corporate 
information, please contact:
Mary Ellen Fowler
Senior Vice President and Treasurer
Corporate Office Properties Trust
6711 Columbia Gateway Drive,  
Suite 300
Columbia, Maryland 21046
Telephone: (443) 285-5450
Facsimile: (443) 285-7640
Email: ir@copt.com

SHAREHOLDER INFORMATION
As of March 16, 2009, the Company 
had approximately 54,367,000  
outstanding common shares owned  
by approximately 670 shareholders of 
record. The number of shareholders 
does not include the number of persons 
whose shares are held in nominee or 
“street name” accounts through brokers 
or clearing agencies.

COMMON AND  
PREFERRED SHARES
The common and preferred shares  
of Corporate Office Properties Trust 
are traded on the New York Stock 
Exchange. Common shares are traded 
under the symbol OFC, and preferred 
shares are traded under the symbols 
OFCPrG, OFCPrH or OFCPrJ.

.
c
n
I

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s
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n
o
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n
a
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b

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s
e
D

WEBSITE
For additional information on the 
Company, visit our website at  
www.copt.com.

FORWARD-LOOKING 
INFORMATION
This report contains forward-looking 
information based upon the Company’s 
current best judgment and expecta-
tions. Actual results could vary from 
those presented herein. The risks and 
uncertainties associated with the for-
ward-looking information include the 
strength of the commercial office real 
estate market in which the Company 
operates, competitive market condi-
tions, general economic growth, inter-
est rates and capital market conditions. 
For further information, please refer  
to the Company’s filings with the 
Securities and Exchange Commission.

CORPORATE GOVERNANCE 
CERTIFICATION
The Company submitted to the New 
York Stock Exchange in 2008 the 
Annual CEO Certification required by 
Section 303A.12 of the New York Stock 
Exchange corporate governance rules.

SARBANES-OXLEY ACT
SECTION 302 CERTIFICATION
The Company filed with the Securities 
and Exchange Commission, as an 
exhibit to its Form 10-K for the  
year ended December 31, 2008, the 
Sarbanes-Oxley Act Section 302 certi-
fication regarding the quality of the 
Company’s public disclosure.

(top photo, l to r)

Jay H. Shidler
Chairman of the Board
Managing Partner,
The Shidler Group

Steven D. Kesler
Chief Financial Officer
CRP Operations, LLC

Kenneth D. Wethe
Principal
Wethe & Associates

Randall M. Griffin
President and  
Chief Executive Officer
Corporate Office Properties Trust

(bottom photo, l to r)

Clay W. Hamlin, III
Vice Chairman of the Board

Kenneth S. Sweet, Jr.
Managing Partner
Gordon Stuart Associates

Douglas M. Firstenberg
Founding Principal
Stonebridge Associates, Inc.

Thomas F. Brady
Executive Vice President, 
Corporate Strategy
Constellation Energy

Robert L. Denton
Managing Partner
The Shidler Group

 
 
 
 
 
 
The Strength of 
Our Relationships

A Decade of Leadership in Performance

Annual Report 2008    10 Year Anniversary

6711 Columbia Gateway Drive, Columbia, Maryland 21046   443-285-5400   
www.copt.com