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CoStar Group

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FY2011 Annual Report · CoStar Group
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This is just the beginning.

2011 ANNUAL REPORT

 
“     2011 was an extraordinary year for CoStar. We achieved 

record growth, reached new financial heights, launched 
game-changing new technology initiatives, and are  
reaping the benefits from the investments we have  

made since our initial public offering in 1998. ”

This is just the beginning.

Dear Shareholders:

Innovation, a passion for excellence and providing 
our customers with exceptional value—these are the 
core values that drive us at CoStar. Throughout our 
history we have been the leaders in imagining and 
creating a platform that empowers commercial real 
estate professionals to excel, whether they are buying 
or selling a property, representing a tenant, leasing 
a space, valuing an asset, underwriting a loan or 
managing a diverse portfolio. Over the past 25 years, 
we have transformed the information and analytics 
business for commercial real estate by anticipating our 
customers’ needs and exceeding their expectations. 

2011 was no exception. Quite simply, it was our best 
year so far. In 2011: 

n  We launched CoStarGo®, a revolutionary mobile 

iPad application that is changing the way individuals 
access CoStar’s data and analytics in the field and 
interact with their customers.

n  We passed the quarter-billion-dollar mark in 

revenues, achieved $57 million in adjusted EBITDA, 
grew individual subscribers to 93,396 which is the 
most in our history and saw our renewal rate climb 
to 93% which is near our all-time high.

n  We reached an agreement to acquire LoopNet, 
Inc., the leading online marketing platform for 
commercial real estate, and completed the 
acquisition of Virtual Premise, a SaaS-based 
company providing lease management solutions and 
services to large national corporations and retailers.

n  We raised $248 million in an equity offering which  

is expected to be used for the acquisition of  
LoopNet and established a $225 million credit 
facility to help fund the transaction and for general 
corporate purposes.

ANDREW C. FLORANCE 
PRESIDENT & CHIEF EXECUTIVE OFFICER, COSTAR GROUP, INC.

1

COSTAR GROUP 2011 ANNUAL REPORTn  We completed the sale-leaseback of our 

headquarters building in Washington, DC, at 
a sale price of $60 million above our original 
purchase price, one year after buying the building. 
CoStar information and analytics enabled us to 
identify this huge opportunity. What better way to 
demonstrate the power of our products?

n  We integrated CoStar’s comprehensive and 
granular data with PPR, our analytics and 
forecasting subsidiary. With the best data  
in the industry, we believe our team of 60 
professionals provides our clients with  
forecasting and analytics that are unmatched  
in the industry. 

COSTARGO: CREATING A SEA CHANGE 
In August 2011, we launched CoStarGo, our 
revolutionary new iPad app that puts our industry-
leading information into a mobile platform and in 
the field where our clients need it most. CoStarGo 
integrates information from our comprehensive 
property, tenant and comparable sales database into 
a powerful but simple app on the iPad. We believe 
we have developed a tool that is creating a sea 
change in how commercial real estate professionals 
access data and interact with their clients. Our 
customers tell us CoStarGo is empowering them 
to be more productive when they are away from 
the office and enabling them to be much more 
responsive to their clients. 

n  We introduced the CoStar Five-Star Building 

Rating System, an advanced rating system that 
rates all property types on consistent, objective 
criteria and provides more detail in comparing 
property assets across markets. We believe 
this new system will allow national tenants to 
make decisions more efficiently and will enable 
owners and investors to better analyze market 
movements and investment opportunities. 

CoStarGo was released in the middle of the third 
quarter following a 34-city tour to introduce our 
new app to approximately 3,000 of the most active 
and influential commercial real estate brokers 
in the United States. In the fourth quarter, we 
implemented an aggressive marketing campaign 
consisting of direct mail, email, print and online 
advertising, and social media. At the same time, 
our salespeople conducted over 4,500 demos and 

trainings. CoStarGo was directly responsible for 
nearly $5 million in annualized sales in 2011, even 
though it was only released in mid-August. CoStarGo 
is proving to be a key driver of sales, both to 
prospects and existing subscribers upgrading their 
subscriptions to take advantage of the  
mobile app.

Since the launch of CoStarGo, we have added  
over 1,600 enhancements and we will continue  
to make additional updates on a regular basis with 
new features that we expect will make CoStarGo  
an even more effective tool for the commercial real  
estate professional. Almost 10,000 clients have 
downloaded the app and logged in. Many new 
CoStarGo users are top producers and senior 
brokers who may not have spent much time 
performing their own research on their desktop 
or laptop computer, but find the mobile product 
essential and easy-to-use. We believe this will 
continue to contribute positively to higher  
customer retention. 

CoStarGo is also increasing usage of our desktop 
products. Since the launch, we have seen a  
20% increase in usage of our web products. More 
than 1,300 clients who had never used our web 
products began using CoStarGo when it became 
available, and 57% of these new users also started 
using the web product. 

Together, we expect CoStar and LoopNet to form  
the premier online resource for researching, 
analyzing and marketing commercial real estate 
properties. We believe the two companies’ 
complementary services would provide unrivaled 
comprehensive market coverage, deliver enhanced 
research, analysis and marketing options, and  
offer greater efficiencies for customers. The 
combination is expected to improve transparency 
with better products that are higher quality and 
more accurate, increase efficiency for brokers and 
lead to greater innovation in the commercial real 
estate industry. 

Virtual Premise software 
manages almost $1 billion in 
rent payments per month.

LoopNet is the most 
heavily trafficked website in 
commercial real estate with  
3 million unique visitors  
per month.

ACQUISITION ACTIVITY:  
LOOPNET AND VIRTUAL PREMISE 
Acquisitions are a part of our overall growth 
strategy. Our objective is to acquire quality 
companies that are leaders and innovators in  
their area of expertise.

In April 2011, we announced our agreement to 
acquire LoopNet, Inc., for $860 million. LoopNet  
is the leader in marketing commercial real estate  
on the internet. We believe this proposed acquisition 
would be a very positive combination for CoStar 
because it brings together two industry-leading, 
complementary and innovative companies that 
can better serve the industry and provide excellent 
cross-selling opportunities, efficiencies and  
cost savings. 

In October 2011, we completed the acquisition 
of Virtual Premise, a leading provider of lease 
management tools. Clients use Virtual Premise’s 
SaaS-based products to increase the efficiency 
of real estate management processes, reduce 
occupancy costs and improve utilization of real 
estate assets. Virtual Premise’s lease administration 
module helps clients manage and monitor their 
lease expirations, rental payments, renewal options 
and transactions. 

By matching CoStar’s strong information and 
product design capabilities with Virtual Premise’s 
lease management products, we believe we can 
bring significant value to our combined client base 
and create another strong platform for growth.

3

COSTAR GROUP 2011 ANNUAL REPORTinformation, marketing and analytics. This will be offered 
as a premium subscription product for institutional users 

“     We are developing a single platform that incorporates 
such as banks and owners.”

2012 AND BEYOND 
We are dedicated to providing all of the participants 
involved with commercial real estate a unique, 
robust and fully-integrated platform in which they 
can easily access data, analytics and marketing. This 
access has to be fluid which means it has to  
be seamless at the desktop, portable to take on  
the road in a laptop, and available in a tablet for 
ultimate mobility. 

The commercial real estate landscape is full of 
companies that provide a product or service in 
isolation. These islands rarely “talk” to one another, 
which for the user creates inefficiency, wastes a lot 
of time and in the end increases costs.

We have proved that combining multiple products 
into one vehicle in a seamless, fully integrated 
way can have powerful results. CoStarGo is a 
perfect example. CoStarGo combines each of 
the components of the CoStar Suite®: Property 
Professional®, COMPS® and Tenant® into one  
easy-to-use application. From that single platform, 
we are able to add other modules to work in a fully 
integrated manner. CoStar’s Five Star Building 
Rating System is a module we added to CoStarGo 
and it is one of the most popular search criteria 
used for custom searches. 

We plan to add other modules to that platform such 
as Lease DCF™, Lease COMPS™ and analytics from 
PPR and Resolve. 

Why is integration so important? Consider a  
large company with thousands of leases that uses 
the lease management program offered by our 
recently acquired company Virtual Premise to track 
all of their leases, which is a very valuable tool.  
As part of a CoStar integrated system, that company 
would be able to not only keep track of its leases but 

once a lease is expiring, it would be able to analyze 
market opportunities and trends in order to identify 
new potential properties to lease or decide to renew 
in the existing space. All in one session. 

Throughout 2012 and 2013 we expect to: 

n  Refresh the design and functionality of our 

internet products and particularly CoStar Suite.

n  Roll out modules of tools and services such  

as Lease DCF™, Lease COMPS™, and  
CoStar TOUR™, a complementary iPad app  
to CoStarGo.

The combination of all of the modules throughout 
2012 and 2013 would form CoStar Fusion™. We 
expect CoStar Fusion to be a premium product that 
we believe could become a significant revenue driver 
for CoStar in 2013. 

We plan to continue to make significant strides with 
CoStarGo, along with other new software product 
initiatives for 2012 which we believe have equally 
high potential. 

In the United Kingdom, we plan to integrate our  
UK sales, research, fulfillment processes and  
data into our more powerful US back-end software 
systems. In addition, we expect to complete  
and release CoStarGo in the UK in 2012 and  
CoStar Suite after that.

We believe we will see a solid revenue uplift from 
this investment in the UK and our initiatives will be 
a significant upgrade for the UK commercial real 
estate market, giving those professionals access  
to comprehensive information that has not 
previously been available. This represents a giant 
leap forward in technology for the UK commercial 
real estate market. 

We plan to actively engage in the integration  
of LoopNet and Virtual Premise as we look  
to capture the synergies we believe these 
combinations offer and to continue to deliver the 
most comprehensive information and analytics  
platform to the industry.

CONCLUSION
We are extremely proud of our performance in 
2011. Our business is hitting on all cylinders as 
the investments we’ve made in our database, 
analytics and product development are paying 
off. The talented team we have assembled at 
CoStar continues to perform with great skill 
and imagination, always seeking to delight our 
customers by anticipating their needs and delivering 
high quality products and services.

I am very pleased that our clients are favorably 
responding to CoStar’s products and services, as 
evidenced by our record revenue, high renewal  
rates and record level of individual subscribers.  
It is our goal at CoStar to continue to bring 
innovative and valuable products to the commercial 
real estate industry. 

Yet, we believe we are only scratching the surface. 
We estimate our current market penetration is less 
than 20% of the potential users of commercial real  
estate information products in the United States, 
leaving a lot of runway still ahead of us. We believe 
our software solutions will allow us to better service 
market segments like banks, owners and real  
estate investors. 

The commercial real estate market continues to 
improve and is providing a positive environment 
for our business. As we have seen throughout our 
history, as vacancy rates decline and positive net 
absorption continues, CoStar revenues are positively 
affected. In effect, those positive factors give us a tail 
wind. While the current tail wind is not as strong as 
it could be, market conditions are favorable and not 
blowing in our face. 

I have never been more excited about the 
prospects for CoStar than I am now. What we have 
accomplished to this point is only the beginning. 
We will continue to strive to be the best provider of 
information, marketing and analytics services in  
the industry.

With a strong foundation and talented individuals 
throughout the organization, we are very  
well-positioned to achieve our goal of $500 million 
in high-margin annual revenue over the next several 
years and on our way to over $1 billion.

I look forward to updating you on our progress.

Sincerely,

ANDREW C. FLORANCE 
President & Chief Executive Officer

5

COSTAR GROUP 2011 ANNUAL REPORTA History of Innovation

Our 25 year commitment to servicing the commercial real estate industry

1987–94

EARLY ON 

n Andy Florance launches Infonet, Inc.,  
in the Washington DC market
n Creates Cornerstone, a quarterly  
leasing guide 
n Cornerstone is sold. Proceeds are used to 
begin Realty Information Group (RIG)
n Attracts investment from a group led 
by attorney Michael Klein who becomes 
Chairman, a position he still holds today

1998–99

IPO SETS STAGE FOR  
DECADE OF GROWTH 

2003–04

INTERNET PLATFORM CREATES 
TECHNOLOGY ADVANTAGE

n Goes public with one product, Property 
Professional®, available in six markets, 
generating $7.7 million in annual sales.  
IPO price is $9 per share
n Acquisitions of Jamison Research Inc.  
and LeaseTrend, Inc.
n Costar Tenant® is released 
n Company name changes to  
CoStar Group, Inc. in 1999 
n Reaches 20,000 users of its multimedia 
software & internet-delivered databases
n Tracks 13 billion square feet of space and 
310,000 tenants in 28 markets

n CoStar Property Professional® and CoStar 
COMPS Professional® drive sales and 
earnings growth
n Customer satisfaction reaches new heights
n Expands into the United Kingdom (UK) with 
acquisition of Property Intelligence PLC
n Number of employees now 850
n Starts 21 market expansion
n Achieves $100 million in revenue

1995–97

MOVING FROM PRINT TO THE  
DESKTOP AND THE INTERNET 

2000–02

2005

RANKS AMONG FASTEST GROWING 
TECHNOLOGY COMPANIES 

TECH ENHANCEMENTS AND  
GEOGRAPHIC EXPANSION

n Information is made available on the desktop 
with a software product called CoStar. It 
is installed on computers and updated via 
CD-rom diskettes.
n Expansion into New York City, Boston  
and Chicago 
n Information is distributed to clients over  
the internet
n Grows to 2,000 clients tracking 150,000 
buildings using our products

n Purchases COMPS.com
n Reaches $70 million in annual revenue
n Acceleration of industry leading internet 
strategy—diskettes phased out 
n Launches web-based version of CoStar Property
n Database: 20 billion square feet of inventory, 
969,000 images
n CoStar ranked among the 500 fastest-growing 
technology firms in Deloitte’s “Fast 500”
n Andy Florance named Entrepreneur of the Year 
by Ernst & Young
n Introduces Power Broker awards which 
recognize top broker and brokerage firms

n Software overhaul increases 
productivity and upgrades to  
Property Professional®, Tenant®  
and for-sale offerings
n Completes 21 market expansion
n Renewal rates climb to all time  
high of 94%
n CoStar is now in 66 markets with 32.5 
billion square feet of inventory

Our 25 year commitment to servicing the commercial real estate industry

2006

2008

2010

LAUNCHES 100 MARKET  
EXPANSION INTO THE US 

n Launches revolutionary retail information 
search technology in flagship product 
Property Professional® and signs several 
national retailers
n Significant upgrade to CoStar COMPS®
n Deploys 155 field research vehicles.  
Two-thirds are high-tech fuel-efficient 
hybrid cars.
n Sets industry record with 540,000 
commercial property listings available
n Moves into France with acquisition  
of Grecam S.A.S.

MARGINS EXCEED 30% 

n Despite weak market and global  
financial crisis, EBITDA margin expands  
to 30% in the fourth quarter
n Launches Showcase® online marketing 
platform
n Reaches $200 million in revenue
n Database: 3.2 million properties,  
65 million square feet of inventory
n Database surpasses 1 million listings, 
the largest ever assembled by a single 
information provider

RETURNS TO WASHINGTON, DC, 
WITH BLOCKBUSTER HQ DEAL

n CoStar relocates headquarters to 
Washington, DC
n Market recovery continues 
n Overall strong sales growth
n Revenue surges from CRE investors, banks 
and financial services firms
n Strategic acquisitions planned 
n Software initiatives underway for a  
mobile app

2007

2009

NATIONAL MARKET EXPANSION

ADDS POWERFUL ANALYTICS

n Expands to 250 markets in the US
n Further expansion into UK, buys Property 
Investment Exchange, Ltd. (PropEx)
n Database: 40 billion square feet of 
inventory, 2.3 million properties,  
770,000 listings
n Doubles field sales team 
n CB Richard Ellis signs an 11 year contract 
with CoStar valued at over $100 million
n Major retailers continue to subscribe
n Expands to 1,300 employees

n Strong financial position allows for 
investment in sales and research
n Increases analytics capabilities and depth 
with acquisitions of PPR and Resolve
n CoStar Suite® (Property®, COMPS® and 
Tenant®) of information services now 
available in every US market
n Unveils real-time, online visual display of 
commercial real estate activity as it happens
n Wins 2009 Excellence in Energy Star Award 
from the US Environmental Protection Agency

2011

BEST YEAR EVER  
COSTARGO AND LOOPNET

n Achieves record revenue of $252 million 
n 93,396—highest number of subscribers 
n Accelerates investments in software development
n Enters into agreement to acquire LoopNet
n Launches CoStarGo®
n Acquisition of Virtual Premise
n 1,500 employees
n Raises $248 million in net proceeds in an  
equity offering
n Establishes $225 million credit facility
n Database: 81 billion sq. ft. of inventory,  
1.5 million total listings, 12 million images,  
4 million researched and verified properties

7

COSTAR GROUP 2011 ANNUAL REPORTDepth of Management

Andrew Florance
President & Chief Executive Officer
Andy founded CoStar 25 years ago with a vision to 
build the best information platform in the industry. 
Under his leadership, CoStar has transformed the 
way commercial real estate professionals research 
and analyze information. 

Jennifer Kitchen
Senior Vice President, Research
An 18-year CoStar veteran, Jenny manages a team 
of over 900 researchers who proactively maintain 
and grow the largest commercial real estate  
information database ever assembled. 

Frank Simuro
Chief Information Officer
Frank joined CoStar 13 years ago. His team au-
tomates our world class research organization, 
develops the products that deliver data and analytics 
to our customers and built a scalable technology 
platform for the web and mobile devices. 

John Stanfill
Senior Vice President, Sales & Customer Service
John has been with CoStar for 17 years. Today, 
John’s sales organization has turned in nine 
consecutive quarters of record revenue as the 
company crossed $250 million in sales.

Brian Radecki
Chief Financial Officer
CoStar’s CFO since 2007, Brian is in his 15th year 
at CoStar and has served in a number of executive 
positions in both financial and operational roles. 
In 2011, his finance team raised $248 million in 
net proceeds in an equity offering, arranged a 
credit facility of $225 million and oversaw cash and 
investments of $573 million, as of December 31, 2011. 

Andrew Florance

Frank Simuro

John Stanfill

Brian Radecki

Jennifer Kitchen

“

     CoStar’s Senior Management team is strong, deep and 
experienced. They have built CoStar into an international leader  
in commercial real estate information and analytics. Most of the  
team has more than 15 years of service at CoStar and many  
more years of commercial real estate experience.

”

Frank Carchedi
Senior Vice President, Corporate Development
In his 13 years at CoStar, Frank has held key  
senior management positions, including CFO. He  
is responsible for identifying, completing and  
integrating acquisitions. Since 2009, he has led the 
integration of CoStar’s strategic acquisitions of PPR, 
Resolve and Virtual Premise. 

Hans Nordby
Managing Director, PPR
Hans joined CoStar in 2009 with the acquisition of 
PPR. He leads a team of 60 professionals in provid-
ing market research, analytics and forecasting to 
investors on hundreds of global markets in North 
American and Europe.

Dr. Ruijue Peng
Chief Research Officer, PPR
Ruijue has been with PPR since 1994 and oversees 
research and development of econometric forecasting 

models and analytic tools. Ruijue built and manages 
CoStar’s Repeat Sales Index.

Andy Thomas 
President, Virtual Premise
With over 25 years in real estate and technology, 
Andy joined CoStar in 2011 with the acquisition  
of Virtual Premise. He leads a team of 50 based in 
Atlanta and is responsible for growing market share 
in the lease management solutions space.

Eric Forman
Chief Executive Officer, Resolve
With over 25 years of experience in the commercial 
real estate industry, Eric joined CoStar in 2009 with 
the acquisition of Resolve. An expert of best prac-
tices in portfolio management, he is responsible for 
the overall direction of Resolve.

Frank Carchedi

Andy Thomas

Eric Forman

Hans Nordby

Dr. Ruijue Peng

9

COSTAR GROUP 2011 ANNUAL REPORTDepth of Management (cont.)

Paul Marples
Managing Director, CoStar UK Limited
With over 25 years of industry experience, Paul 
came to CoStar with the 2007 acquisition of Prop-
erty Investment Exchange, Ltd., strengthening 
CoStar’s foothold in the UK.

Curtis Ricketts
Senior Vice President, Product Design
Curtis joined CoStar in 1994. He manages the 
product design team that was integral in the 
development and deployment of CoStarGo and  
is actively engaged in product initiatives for 2012 
and beyond.

Mark Klionsky
Senior Vice President, Marketing
Mark is a 25-year veteran of commercial real 
estate. In 2011, he oversaw the successful launch 
of CoStarGo, which included a 34-city tour and a 

marketing campaign that employed advertising, 
direct mail, public relations, social media and 
electronic communications. 

Susan Jeffress 
Vice President, Customer Service
Susan has 23 years of experience with CoStar.  
Her team is responsible for customer satisfaction 
and helping clients get the most out of their  
CoStar products. 

Jonathan Coleman
General Counsel & Secretary
Jon joined CoStar in 2000. Team highlights in 2011 
include working on all aspects of the LoopNet 
and Virtual Premise transactions, overseeing the 
$248 million equity offering, completing the sale-
leaseback of CoStar’s headquarters and winning a 
multi-million dollar judgment in a lawsuit involving 
the unauthorized sharing of CoStar passwords. 

Curtis Ricketts

Mark Klionsky

Susan Jeffress

Jonathan Coleman

Paul Marples

2011 Financial Highlights

In 2011, we achieved our best-ever results in a 
number of key measures—our best-ever annual 
results for both revenue and EBITDA, our best-
ever quarterly and monthly sales results. For the 
year, we generated record revenue and exceeded 
a quarter of a billion dollars. Our fourth quarter 
year-over-year growth in revenue was 13.7%. We 
increased our revenue in each of the last eleven 
consecutive quarters. Annualized net new sales 
for the 4th quarter of 2011 were $8.7 million, an 
increase of 86% year-over-year. 

Annual and multi-year subscriptions are the core of 
our business model and represented approximately 
94% of revenue. Our renewal rate for all clients 
was 93%, and we are particularly proud of our 98% 
renewal rate among clients who have been with 

us 5+ years. We now have approximately 93,396 
paying subscribers, the most we have ever had, 
which demonstrates we are providing high quality 
products and outstanding value to our clients.

We raised $248 million in equity to help finance 
the proposed acquisition of LoopNet, and we 
established an agreement for a $225 million  
credit facility that is expected to be used to help 
fund that transaction. 

Our balance sheet is extremely strong. We ended 
2011 with $573 million in cash and investments. 
We expect to use some cash on hand, along with 
the addition of a manageable amount of debt, upon 
closing of the proposed LoopNet transaction.

OPERATIONS

Revenues
Net income
Net income per share (diluted)
Weighted average outstanding 
shares (diluted)

BALANCE SHEET

Cash, cash equivalents  
and investments
Total assets
Stockholders’ equity

$ IN THOUSANDS, EXCEPT PER SHARE DATA

2007

$192,805
$15,951
$0.82
19,404

2008

$212,428
$24,623
$1.26
19,550

2009

$209,659
$18,693
$0.94
19,925

2010

$226,260
$13,289
$0.64
20,707

2011

$251,738
$14,656
$0.62
23,527

$187,426

$224,590

$255,698

$239,316

$573,379

$321,843
$281,805

$334,384
$303,421

$404,579
$359,006

$439,648
$381,502

$771,035
$659,177

11

COSTAR GROUP 2011 ANNUAL REPORT 
 
 
 
2011 Financial Highlights (cont.)

COMPARISON OF QUARTERLY EBITDA  
+ NET INCOME

FIVE YEAR REVENUE GROWTH

EBITDA

NET INCOME

Q1  

    Q2 

2010
        Q3 

              Q4                  Q1  
NUMBER IN MILLIONS

2011

    Q2 

        Q3 

             Q4                       

2007                           2008 

2009 

2010 

2011

REVENUE IN MILLIONS

RECONCILIATION OF QUARTERLY EBITDA WITH 2010–2011 QUARTERLY NET INCOME 
(IN MILLIONS) 

2010

2011

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

Net income 
Purchase amortization
Depreciation and other amortization
Interest income, net
Income tax expense, net

EBITDA

  $2.9
1.2
2.4
(0.2)
2.5

  $8.8

  $3.3
0.8
2.5
(0.2)
1.4

  $7.8

  $3.4
0.9
2.4
(0.2)
2.9

  $9.4

  $3.8
0.9
2.5
(0.2)
3.4

 $10.4

  $4.5
0.8
2.6
(0.2)
2.8

 $10.5

  $2.6
0.8
2.4 
(0.2)
1.5

  $7.1

  $2.3
0.9
2.1
(0.2)
0.9

  $6.0

  $5.2
1.0
2.2
(0.2)
2.8

 $11.0

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, DC 20549 

FORM 10-K 

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF 
THE SECURITIES EXCHANGE ACT OF 1934 

For the fiscal year ended December 31, 2011 

Commission file number 0-24531 

CoStar Group, Inc. 
(Exact name of registrant as specified in its charter) 

Delaware 
(State or other jurisdiction of incorporation or organization) 

52-2091509 
(I.R.S. Employer Identification No.) 

1331 L Street, NW 
Washington, DC 20005 
(Address of principal executive offices) (zip code) 

(202) 346-6500 
Registrant’s telephone number, including area code 

(877) 739-0486 
Registrant’s facsimile number, including area code 

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

Title of Each Class 
Common Stock, $.01 par value 

Name of Each Exchange on Which Registered 
NASDAQ Global Select Market 

Securities registered pursuant to Section 12(g) of the Act: 
None 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes   No  

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes    No  

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act 
of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject 
to such filing requirements for the past 90 days. Yes    No  

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data 
File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or 
for such shorter period that registrant was required to submit and post such files.) Yes    No  

Indicate  by  check  mark  if  disclosure  of  delinquent  filers  pursuant  to  Item  405  of  Regulation  S-K  is  not  contained  herein,  and  will  not  be 
contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in  Part III of this Form 
10-K or any amendment to this Form 10-K.     

Indicate  by  check  mark  whether  the  registrant  is  a  large  accelerated  filer,  an  accelerated  filer,  a  non-accelerated  filer,  or  a  smaller  reporting 
company.  See the definitions of ―large accelerated filer,‖ ―accelerated filer‖ and ―smaller reporting company‖ in Rule 12b-2 of the Securities 
Exchange Act of 1934.  

Large accelerated filer   
Non-accelerated filer   

Accelerated filer   
Smaller reporting company   

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes   No   

Based  on the  closing  price  of  the  common  stock  on  June  30,  2011  on the  Nasdaq  Stock  Market,  Nasdaq  Global  Select  Market,  the  aggregate 
market value of registrant’s common stock held by non-affiliates of the registrant was approximately $1.4 billion. 

As of February 17, 2012, there were 25,445,864 shares of the registrant’s common stock outstanding. 

1 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Portions of the registrant’s definitive proxy statement, which is expected to be filed with the Securities and Exchange Commission within 

120 days after the end of the registrant’s fiscal year ended December 31, 2011, are incorporated by reference into Part III of this Report. 

DOCUMENTS INCORPORATED BY REFERENCE 

2 

 
 
PART I 
Item 1. 
Item 1A. 
Item 1B. 
Item 2. 
Item 3. 
Item 4. 

PART II 
Item 5. 

Item 6. 
Item 7. 
Item 7A. 
Item 8. 
Item 9. 
Item 9A. 
Item 9B. 

PART III 
Item 10. 
Item 11. 
Item 12. 

Item 13. 
Item 14. 

PART IV 
Item 15. 

TABLE OF CONTENTS 

Business ............................................................................................................................................  4 
Risk Factors ......................................................................................................................................  18 
Unresolved Staff Comments .............................................................................................................  27 
Properties ..........................................................................................................................................  27 
Legal Proceedings .............................................................................................................................  28 
Mine Safety Disclosures ...................................................................................................................  28 

Market for the Registrant’s Common Stock, Related Stockholder Matters and Issuer 

Purchases of Equity Securities ......................................................................................................  29 
Selected Consolidated Financial and Operating Data .......................................................................  31 
Management’s Discussion and Analysis of Financial Condition and Results of Operations ...........  32 
Quantitative and Qualitative Disclosures about Market Risk ...........................................................  50 
Financial Statements and Supplementary Data .................................................................................  51 
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure ...........  51 
Controls and Procedures ...................................................................................................................  51 
Other Information .............................................................................................................................  52 

Directors, Executive Officers and Corporate Governance ................................................................  53 
Executive Compensation ..................................................................................................................  53 
53 
Security Ownership of Certain Beneficial Owners and Management and Related 
Stockholder Matters.......................................................................................................................  
Certain Relationships and Related Transactions, and Director Independence ..................................  53 
Principal Accountant Fees and Services ...........................................................................................  53 

Exhibits and Financial Statement Schedules ....................................................................................  54 
Signatures .........................................................................................................................................  55 
Index to Exhibits ...............................................................................................................................  56 
Index to Consolidated Financial Statements .....................................................................................  F-1 

3 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 1. 

Business  

PART I 

In  this  report,  the  words  ―we,‖  ―our,‖  ―us,‖  ―CoStar‖  or  the  ―Company‖  refer  to  CoStar  Group,  Inc.  and  its 
direct and indirect subsidiaries. This report also refers to our websites, but information contained on those sites is 
not part of this report. 

CoStar Group, Inc., a Delaware  corporation, founded in 1987,  is the number one provider of  information and 
analytic services to the commercial real estate industry in the United States (U.S.) and United Kingdom (U.K.) based 
on the fact that we offer the most comprehensive commercial real estate database available, have the largest research 
department in the industry, provide more information and analytic services than any of our competitors and believe 
we generate more revenues than any of our competitors. CoStar’s integrated suite of services offers customers online 
access to the most comprehensive database of commercial real estate information, which has been researched and 
verified by our team of researchers, currently covering the U.S., as well as London and other parts of the U.K. and 
parts  of  France.  We  manage  our  business  geographically  in  two  operating  segments,  with  our  primary  areas  of 
measurement and decision-making being the U.S. and International, which includes the U.K. and France. 

Strategy 

Since  our  founding,  CoStar’s  strategy  has  been  to  provide  commercial  real  estate  professionals  with  critical 
knowledge  to  explore  and  complete  transactions  by  offering  the  most  comprehensive,  timely  and  standardized 
information  on  U.S.  commercial  real  estate.  We  have  extended  our  offering  of  comprehensive  commercial  real 
estate  information  to  include  London  and  other  parts  of  the  U.K.  and  parts  of  France,  through  acquisitions  and 
internal  growth  and  development.    Information  about  CoStar’s  revenues  from,  and  long-lived  assets  located  in, 
foreign  countries  is  included  in  Notes  2  and  11  to  our  consolidated  financial  statements.  CoStar’s  revenues, 
EBITDA,  assets  and  liabilities,  broken  out  by  segment  are  set  forth  in  Note  11  to  our  consolidated  financial 
statements.  Information about risks associated with our foreign operations is included in ―Item 7A. Quantitative and 
Qualitative Disclosures about Market Risk.‖   

We deliver our content to our U.S. customers  primarily via an integrated suite of online  service offerings that 
includes information about space available for lease, comparable sales information, tenant information, information 
about  properties  for  sale,  internet  marketing  services,  analytical  capabilities,  information  for  clients’  websites, 
information about industry professionals and their business relationships, data  integration and industry  news.   We 
also  provide  market  research  and  analysis  for  commercial  real  estate  investors  and  lenders  via  our  Property  and  
Portfolio  Research,  Inc.  (―PPR‖)  service  offerings,  portfolio  and  debt  management  and  reporting  capabilities 
through  our  Resolve  Technology,  Inc.  (―Resolve  Technology‖)  service  offerings,  and  real  estate  management 
solutions,  including  lease  administration  and  abstraction  services,  through  our  Virtual  Premise,  Inc.  (―Virtual 
Premise‖) service offerings.  We have created and are continually improving a standardized information and analytic 
platform  where  members  of  the  commercial  real  estate  and  related  business  community  can  continuously  interact 
and facilitate transactions by efficiently exchanging accurate and standardized commercial real estate information. 

Our  standardized  platform  includes  the  most  comprehensive  proprietary  database  in  the  industry;  the  largest 
research  department  in  the  industry;  proprietary  data  collection,  information  management  and  quality  control 
systems; a large in-house product development team; a broad suite of web-based information and analytic services; a 
large team of analysts and economists; and a large base of clients. Our database has been developed and enhanced 
for more than 24 years by a research department that makes thousands of daily database updates. In addition to our 
internal efforts to grow the database, we have obtained and assimilated over 70 proprietary databases.   

Our  subscription-based  information  services,  consisting  primarily  of  CoStar  Property  Professional,  CoStar 
Tenant,  CoStar  COMPS  Professional  and  FOCUS  services,  currently  generate  approximately  94%  of  our  total 
revenues.  CoStar  Property  Professional,  CoStar  Tenant,  and  CoStar  COMPS  Professional  are  generally  sold  as  a 
suite of similar services and comprise our primary service  offering in our U.S. operating segment.  FOCUS is our 
primary service offering in our International operating segment. The majority of our contracts for our subscription-
based  information  services  typically  have  a  minimum  term  of  one  year  and  renew  automatically.  Upon  renewal, 
many of the subscription contract rates may change in accordance with contract provisions or as a result of contract 
renegotiations. To encourage clients to use our services regularly, we generally charge a fixed monthly amount for 
our  subscription-based  information  services  rather  than  fees  based  on  actual  system  usage.  Contract  rates  are 

4 

 
 
 
 
 
 
 
 
 
generally based on the number of sites, number of users,  organization size, the client’s business focus, geography 
and the  number of services to  which a  client subscribes.  Our subscription clients  generally pay contract  fees on a 
monthly basis, but in some cases may pay us on a quarterly or annual basis.   

Expansion and Growth 

Acquisitions 

Since 1994, we  have expanded the  geographical  coverage of our existing information  services  and developed 
new information and analytic services. In addition to internal growth, we have grown our business through strategic 
acquisitions.  Most recently, in October 2011, we acquired Virtual Premise, a Software as a Service, or on-demand 
software,  provider  of  real  estate  information  management  solutions  located  in  Atlanta,  Georgia.    In  addition,  we 
have  also  signed  a  definitive  agreement  to  acquire  LoopNet,  Inc.  (―LoopNet‖)  (NASDAQ:  LOOP);  the  pending 
LoopNet acquisition is described below under ―Pending Acquisition.‖  

Historically, our expansion includes the acquisitions of  Chicago ReSource, Inc. in  Chicago in 1996 and New 
Market Systems, Inc. in San Francisco in 1997. In August 1998, we expanded into the Houston region through the 
acquisition of Houston-based real estate information provider C Data Services, Inc. In January 1999, we expanded 
further  into  the  Midwest  and  Florida  by  acquiring  LeaseTrend,  Inc.  and  into  Atlanta  and  Dallas/Fort Worth  by 
acquiring Jamison Research, Inc. In February 2000, we acquired COMPS.COM, Inc., a San Diego-based provider of 
commercial real estate information. In November 2000, we acquired First Image Technologies, Inc., a California-
based provider of commercial real estate software.  In September 2002, we expanded further into Portland, Oregon 
through  the  acquisition  of  certain  assets  of  Napier  Realty  Advisors  (doing  business  as  REAL-NET).  In  January 
2003, we established a base in the U.K. with our acquisition of London-based FOCUS Information Limited. In May 
2004,  we  expanded  into  Tennessee  through  the  acquisition  of  Peer  Market  Research,  Inc.,  and  in  June  2004,  we 
extended  our  coverage  of  the  U.K.  through  the  acquisition  of  Scottish  Property  Network.  In  September  2004,  we 
strengthened our position in Denver, Colorado through the acquisition of substantially all of the assets of RealComp, 
Inc., a local comparable sales information provider. 

In January 2005, we acquired National Research Bureau, a Connecticut-based provider of U.S. shopping center 
information.  In  December  2006,  our  U.K.  subsidiary,  CoStar  Limited,  acquired  Grecam  S.A.S.  (―Grecam‖),  a 
provider  of  commercial  property  information  and  market-level  surveys,  studies  and  consulting  services  located  in 
Paris, France. In February 2007, CoStar Limited also acquired Property Investment Exchange Limited (―Propex‖), a 
provider of commercial property information and operator of an electronic platform that facilitates the exchange of 
investment  property  located  in  London,  England.  In  April  2008,  we  acquired  the  assets  of  First  CLS,  Inc.  (doing 
business  as  the  Dorey  Companies  and  DoreyPRO),  an  Atlanta-based  provider  of  local  commercial  real  estate 
information. In July 2009, we acquired Massachusetts-based PPR, a provider of real estate analysis, market forecasts 
and credit risk analytics to the commercial real estate industry, and its wholly owned U.K. subsidiary Property and 
Portfolio Research Ltd., and in October 2009, we acquired Massachusetts-based Resolve Technology, a provider of 
business intelligence and portfolio management software serving the institutional real estate investment industry.   

Pending Acquisition 

On April 27, 2011, we signed a definitive agreement to acquire LoopNet.  LoopNet owns and operates an online 
marketplace for commercial real estate in the U.S. that enables commercial real estate agents, working on behalf of 
property owners and landlords, to list properties for sale  or for lease and submit detailed information on property 
listings  in  order  to  find  a  buyer  or  tenant.    Pursuant  to  the  merger  agreement,  as  a  result  of  the  merger  (a)  each 
outstanding share of LoopNet common stock will be converted into a unit consisting of (i) $16.50 in cash (the ―Cash 
Consideration‖), without interest and (ii) 0.03702 shares of CoStar common stock (the ―Stock Consideration‖), and 
(b)  each  outstanding  share  of  LoopNet  Series A  Convertible  Preferred  Stock,  unless  previously  converted  into 
LoopNet common stock, will be converted into a unit consisting of (i) the product of 148.80952 multiplied by the 
Cash  Consideration  and  (ii) the  product  of  148.80952  multiplied  by  the  Stock  Consideration,  representing  a  total 
equity value of approximately $860.0 million and an enterprise value of $762.0 million as of April 27, 2011. The 
holders  of  LoopNet’s  Series  A  Convertible  Preferred  Stock  delivered  contingent  conversion  notices  to  LoopNet 
pursuant to which such shares will be converted into LoopNet common stock immediately prior to, and contingent 
upon,  the  completion  of  the  merger.    The  boards  of  directors  of  both  companies  have  unanimously  approved  the 
transaction,  and  the  holders  of  a  majority  of  the  outstanding  shares  of  LoopNet’s  common  stock  and  Series  A 
Convertible  Preferred  Stock,  voting  together  as  a  single  class  on  an  as-converted  basis,  approved  adoption  of  the 

5 

 
 
 
 
 
 
 
 
merger  agreement  on  July  11,  2011.    Information  about  the  LoopNet  merger  agreement  can  be  found  in  the 
registration statement on Form S-4 filed by CoStar on May 13, 2011, which was amended on June 3, 2011,  under 
the heading ―The Merger Agreement.‖     

The LoopNet transaction is subject to customary closing conditions, including  expiration or termination of the 
waiting  period  under  the  Hart-Scott-Rodino  Antitrust  Improvement  Act  of  1976  (the  ―HSR  Act‖).    As  previously 
disclosed  in  our  proxy  statement/prospectus  dated  June 6,  2011,  both  CoStar  and  LoopNet  filed  notification  and 
report forms with the Department of Justice and the Federal Trade Commission (the ―FTC‖) pursuant to the Hart-
Scott-Rodino Antitrust Improvement Act of 1976 (the ―HSR Act‖), on May 31, 2011. As a result, the waiting period 
under the HSR Act with respect to the proposed acquisition of LoopNet by CoStar (the ―merger‖) was scheduled to 
expire  on June 30, 2011. As  previously reported in a Current Report on Form 8-K, on June 30, 2011, CoStar and 
LoopNet each received a request for additional information (commonly referred to as a ―second request‖) from the 
FTC with respect to the proposed merger.  At the FTC’s request, CoStar and LoopNet subsequently agreed to extend 
the  waiting period imposed by the  HSR  Act  from 30 to 60 days after the date  of substantial compliance  with the 
second  request  unless  that  period  is  extended  voluntarily  by  the  parties  or  terminated  sooner  by  the  FTC.    On 
November  4,  2011,  each  of  the  Company  and  LoopNet  certified  as  to  its  substantial  compliance  with  the  second 
request.  As previously disclosed on January 3, 2012, CoStar and LoopNet voluntarily agreed to further extend the 
waiting period imposed by the HSR Act on a 45-day rolling basis to allow them to engage in discussions with the 
FTC to determine whether there is a possible basis for, and  to discuss the possible terms of, a mutually acceptable 
consent order that would allow the merger to close.  On January 31, 2012, CoStar and LoopNet mutually agreed to 
extend the date after which either party may individually elect to terminate the merger agreement from January 31, 
2012 to April 30, 2012.  While there can be no assurance that agreement on the terms of a possible consent order can 
be  reached  in  a  timely  manner  or  at  all,  the  Company  believes  the  discussions  with  the  FTC  Staff  are  currently 
proceeding constructively and the Company is hopeful that they will in the near term result in an agreement with the 
FTC Staff on the terms of such a consent order, subject to FTC approval.   Additional information about the merger 
and the risks associated with the merger can be found under ―Item 1A. − Risk Factors‖ below.   

The  LoopNet  transaction  is  not  subject  to  a  financing  condition.    We  intend  to  fund  the  cash  portion  of  the 
consideration payable to LoopNet stockholders in the merger through a combination of cash on hand, including the 
net  proceeds  of  approximately  $247.9  million  from  an  equity  offering  we  completed  in  June  2011,  and  a  $175.0 
million  term  loan  facility  available  to  us  under  a  Credit  Agreement  we  entered  into  on  February  16,  2012  with  a 
syndicate of lenders and J.P. Morgan Bank, as administrative agent.  The obligation of the lenders to make the loans 
under the Credit Agreement is subject to the simultaneous closing of the merger with LoopNet and the satisfaction 
of certain other conditions precedent.  See Notes 19 and 20 to the consolidated financial statements  for additional 
information  regarding  the  financing  commitment  from  J.P.  Morgan  Bank  and  the  credit  facility  entered  into 
subsequent to December 31, 2011.   

Development 

We  intend  to  continue  to  grow  our  standardized  platform  of  commercial  real  estate  information  and  analytic 
services  and  to  expand  our  service  offerings,  both  in  terms  of  geographical  coverage  and  the  scope  of  services 
offered.  Most recently, on August 15, 2011, we launched CoStarGo™ in the U.S.; CoStarGo is an iPad application 
that integrates our comprehensive property, tenant and comparable sales information in our suite of online products 
– CoStar Property Professional®, CoStar Tenant® and CoStar COMPS Professional®.  Historically, our development 
and  expansion  efforts  have  included  both  geographic  expansion  and  product  development.   In  2004,  we  began 
research  for  a  21-market  U.S.  expansion  effort.   By  the  end  of  the  first  quarter  of  2006,  we  had  successfully 
launched service in each of those 21 markets.    In addition, following our acquisition of National Research Bureau 
in January 2005,  we launched various research initiatives  as part of our expansion into real estate information  for 
retail properties.  We launched the new retail component of our flagship product, CoStar Property Professional®, in 
May 2006.  In July 2006,  we  announced our intention to commence actively researching commercial properties in 
approximately  81  new  Core  Based  Statistical  Areas  (―CBSAs‖)  across  the  U.S.  in  an  effort  to  expand  the 
geographical coverage of our service offerings, including our new retail service. In the fourth quarter of 2007, we 
released our CoStar Property Professional service in the 81 new CBSAs across the U.S. In 2008, we released CoStar 
Showcase, an internet marketing service that provides commercial real estate professionals the opportunity to make 
their listings accessible to all visitors to our public websites, www.CoStar.com and www.showcase.com.  

During the second half of 2009, as part of our strategy to provide subscribers with tools for conducting primary 
research  and  analysis  on  commercial  real  estate,  we  expanded  subscribers’  capabilities  to  use  our  database  of 

6 

 
 
  
 
 
 
research-verified  commercial  property  information  to  conduct  in-depth  analysis  and  generate  reports  on  trends  in 
sales and leasing activity online.  Further, in support of our initiative to expand subscribers’ analytic capabilities, in 
July  2009  we  acquired  PPR  and  its  wholly  owned  subsidiary,  which  provide  real  estate  investment  analysis  and 
market forecasting services.  In October 2009, we acquired Resolve Technology, including its business intelligence 
and portfolio management software used by institutional real estate investment companies, and in October 2011, we 
acquired  Virtual  Premise,  a  provider  of  real  estate  management  solutions,  including  lease  administration  and 
abstraction  services;  both  of  these  acquisitions  enabled  us  to  provide  our  customers  with  additional  tools  for 
analyzing commercial real estate markets and portfolios.  

International Expansion and Development 

We also intend to continue to expand the coverage of our service offerings within our International segment and 
to integrate our International operations more fully with those in the U.S.  In December 2006, our U.K. subsidiary, 
CoStar Limited, acquired Grecam S.A.S., a provider of commercial property information and market-level surveys, 
studies and consulting services, located in Paris, France.  In February 2007, CoStar Limited also acquired Property 
Investment Exchange Limited, a provider of commercial property information and operator of an electronic platform 
that facilitates the exchange of investment property located in London, England.  Our July 2009 acquisition of PPR 
and PPR UK also expanded the market research capabilities of our U.K. operations.   

We intend to introduce a consistent international platform of service offerings in the upcoming future.  In 2007, 
we  introduced  the  ―CoStar  Group‖  as  the  brand  encompassing  our  international  operations.    In  early  2010  we 
launched  Showcase,  our  internet  marketing  service  that  provides  commercial  real  estate  professionals  with  high 
quality internet lead generation, in the U.K.  We expect to introduce CoStar Property Professional,  CoStar COMPS 
Professional, CoStar Tenant and CoStarGo in the U.K. in the upcoming future.  Additionally,  we plan to upgrade 
back end research operations, fulfillment and Customer Relationship Management (―CRM‖) systems in the U.K. to 
support  these  new  U.K.  services.    In  order  to  implement  these  services  and  improvements  in  the  U.K.,  we  have 
incurred, and expect to incur increased development costs.  We believe that our  U.S. and International expansion, 
continued investments in U.S. products, internationalization of our products and integration efforts have created a 
platform for long-term growth, which we intend to continue to develop, invest in and expand.  

Industry Overview  

The market for commercial real estate information and analysis is vast based on the variety, volume and value 
of transactions related to commercial real estate. Each transaction has multiple participants and multiple information 
requirements, and in order to facilitate transactions, industry participants must have extensive, accurate  and current 
information  and  analysis.  Members  of  the  commercial  real  estate  and  related  business  community  require  daily 
access to current data such as space availability, properties for sale, rental rates, vacancy rates, tenant movements, 
sales comparables, supply, new construction, absorption rates and other important market developments to carry out 
their  businesses  effectively.  Market  research  (including  historical  and  forecast  conditions)  and  applied  analytics 
have also become instrumental to the success of commercial real estate industry participants operating in the current 
economic  environment.  There  is  a  strong  need  for  an  efficient  marketplace,  where  commercial  real  estate 
professionals  can  exchange  information,  evaluate  opportunities  using  standardized  data  and  interpretive  analyses, 
and interact with each other on a continuous basis. 

A large number of parties involved in the commercial real estate and related business community make use of 

the services we provide in order to obtain information they need to conduct their businesses, including: 

Sales and leasing brokers 
Property owners 
Property managers 

• 
• 
• 
•  Design and construction professionals 
•  Real estate developers 
•  Real estate investment trust managers 
• 
•  Commercial bankers 
•  Mortgage bankers 
•  Mortgage brokers 
•  Retailers 

Investment bankers 

Pension fund managers 

•  Government agencies 
•  Mortgage-backed security issuers 
•  Appraisers 
• 
•  Reporters 
•  Tenant vendors 
•  Building services vendors 
•  Communications providers 
• 
• 
• 

Insurance companies’ managers 
Institutional advisors 
Investors and asset managers 

7 

 
 
 
 
 
 
 
 
 
The commercial real estate and related business community generally has operated in an inefficient marketplace 
because  of  the  fragmented  approach  to  gathering  and  exchanging  information  within  the  marketplace.  Various 
organizations,  including  hundreds  of  brokerage  firms,  directory  publishers  and  local  research  companies,  collect 
data  on specific  markets and  develop software to analyze the information they have  independently  gathered. This 
highly fragmented  methodology  has resulted in duplication of effort in the collection and analysis of information, 
excessive  internal  cost  and  the  creation  of  non-standardized  data  containing  varying  degrees  of  accuracy  and 
comprehensiveness, resulting in a formidable information gap. 

The  creation  of  a  standardized  information  platform  for  commercial  real  estate  requires  an  infrastructure 
including a standardized database, accurate and comprehensive research capabilities, experienced analysts, easy to 
use  technology  and  intensive  participant  interaction.  By  combining  our  extensive  database,  approximately  1,005 
researchers and outside contractors,  our  experienced team of analysts and economists, technological expertise and 
broad customer base, we believe that we have created such a platform. 

CoStar’s Comprehensive Database  

CoStar has spent more than 24 years building and acquiring a database of commercial real estate information, 
which  includes  information  on  leasing,  sales,  comparable  sales,  tenants,  and  demand  statistics,  as  well  as  digital 
images. 

As of January 31, 2012, our database of real estate information covered the U.S., London, England and other 

parts of the U.K. and parts of France, and contained information about: 

•  Approximately 1.5 million sale and lease listings; 
•  Approximately 4.2 million total properties; 
•  Approximately 10.0 billion square feet of sale and lease listings; 
•  Approximately 8.1 million tenants; 
•  Approximately 1.9 million sales transactions valued in the aggregate at approximately $4.1 trillion; 

and 

•  Approximately 12.4 million digital attachments, including building photographs, aerial photographs, 

plat maps and floor plans. 

This highly complex database is comprised of hundreds of data fields, tracking such categories as: 

Site and zoning information 

•  Location 
• 
•  Building characteristics 
• 
Space availability 
•  Tax assessments 
•  Ownership 
Sales and lease comparables 
• 
• 
Space requirements 
•  Number of retail stores  

For-sale information 
Income and expense histories 

•  Mortgage and deed information 
• 
• 
•  Tenant names 
•  Lease expirations 
•  Contact information 
•  Historical trends 
•  Demographic information 
•  Retail sales per square foot 

CoStar Research 

We  have  developed  a  sophisticated  data  collection  organization  utilizing  a  multi-faceted  research  process.  In 
2011, our full time researchers and contractors drove millions of miles, conducted hundreds of thousands of on-site 
building inspections, and conducted millions of interviews of brokers, owners and tenants. 

Research  Department.  As  of  January  31,  2012,  we  had  approximately  1,005  commercial  real  estate  research 
professionals and outside contractors performing research.  Our research professionals undergo an extensive training 
program  so  that  we  can  maintain  consistent  research  methods  and  processes  throughout  our  research  department. 
Our  researchers  collect  and  analyze  commercial  real  estate  information  through  millions  of  phone  calls,  e-mails, 
internet updates and faxes each  year, in addition to field inspections, public records review,  news  monitoring and 
direct mail. Each researcher is responsible for maintaining the accuracy and reliability of database information. As 
part  of  their  update  process,  researchers  develop  cooperative  relationships  with  industry  professionals  that  allow 
them to gather useful information. Because of the importance commercial real estate professionals place on our data 

8 

 
 
 
 
 
 
 
 
 
 
 
and our prominent position in the industry, many of these professionals routinely take the initiative and proactively 
report available space and transactions to our researchers.   

CoStar has an extensive field research effort that includes physical inspection of properties in order to research 

new markets, find additional inventory, photograph properties and verify existing information.  

CoStar utilizes 144 high-tech field research vehicles in 39 states and the U.K. Of these vehicles, 98 are custom-
designed  energy  efficient  hybrid  cars  that  are  equipped  with  computers,  proprietary  Global  Positioning  System 
tracking  software,  high  resolution  digital  cameras  and  handheld  laser  instruments  to  help  precisely  measure 
buildings,  geo-code  them  and  position  them  on  digital  maps.    Some  of  our  researchers  also  use  custom-designed 
trucks  with  the  same  equipment  as  well  as  pneumatic  masts  that  extend  up  to  an  elevation  of  twenty-five  feet  to 
allow for unobstructed building photographs from ―birds-eye‖ views.  Each CoStar vehicle uses wireless technology 
to  track  and  transmit  field  data.  A  typical  site  inspection  consists  of  photographing  the  building,  measuring  the 
building, geo-coding the building, capturing ―For Sale‖ or ―For Lease‖ sign information, counting parking spaces, 
assessing  property  condition  and  construction,  and  gathering  tenant  information.  Certain  researchers  canvass 
properties, interviewing tenants suite by suite. In addition, many of our field researchers are photographers who take 
photographs of commercial real estate properties to add to CoStar’s database of digital images.   

Data and Image Providers. We license a small portion of our data and images from public record providers and 
third party data sources. Licensing agreements with these entities provide for our use of a variety of commercial real 
estate  information,  including  property  ownership,  tenant  information,  demographic  information,  maps  and  aerial 
photographs,  all  of  which  enhance  various  CoStar  services.  These  license  agreements  generally  grant  us  a  non-
exclusive  license  to  use  the  data  and  images  in  the  creation  and  supplementation  of  our  information  and  analytic 
services  and  include  what  we  believe  are  standard  terms,  such  as  a  contract  term  ranging  from  one  to  five  years, 
automatic renewal of the contract and fixed periodic license fees or a combination of fixed periodic license fees plus 
additional fees based upon our usage. 

Management  and  Quality  Control  Systems.  Our  research  processes  include  automated  and  non-automated 
controls to ensure the integrity of the data collection process.  A large number of automated data quality tests check 
for potential errors, including occupancy date conflicts, available square footage greater than building area, typical 
floor space greater than land area and expired leases.  We also monitor changes to critical fields of information to 
ensure  all  information  is  kept  in  compliance  with  our  standard  definitions  and  methodology.    Our  non-automated 
quality control procedures include: 

calling our information sources on recently updated properties to re-verify information; 
performing periodic research audits and field checks to determine if we correctly canvassed buildings; 
providing training and retraining to our research professionals to ensure accurate data compilation; and 
compiling measurable performance metrics for research teams and managers for feedback on data quality. 

Finally, one of the most important and effective quality control measures we rely on is feedback provided by the 

commercial real estate professionals using our data every day. 

Proprietary Technology 

As of January  31, 2012, CoStar had a staff of  168 product development,  database and network professionals.  
CoStar’s information technology professionals focus on developing new services for our customers and delivering 
research automation tools that improve the quality of our data and increase the efficiency of our research analysts.  

Our  information  technology  team  is  responsible  for  developing  and  maintaining  CoStar  services,  including 
CoStar  Property  Professional®,  CoStar  COMPS  Professional®,  CoStar  Tenant®,  CoStar  Showcase®,  CoStar 
Connect®, CoStarGo™, FOCUS™, Shopproperty™, PPR products and services, Resolve Portfolio Maximizer® and 
Request™  and  Virtual  Premise  products  and  services.    In  2008,  CoStar  released  CoStar  Showcase,  an  internet 
marketing service that provides commercial real estate professionals the opportunity to make their listings accessible 
to all visitors to our public websites, www.CoStar.com and www.showcase.com.  In 2009, we expanded subscribers’ 
capabilities  to  use  CoStar’s  database  of  research-verified  commercial  property  information  to  conduct  in-depth 
analysis and generate reports on trends in sales and leasing activity online. In 2010, we launched Showcase in the 
U.K.  via  www.Showcase.co.uk.   On  August  15,  2011,  we  launched  CoStarGo  in  the  U.S.;  CoStarGo  is  an  iPad 

9 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
application  that  integrates  our  comprehensive  property,  tenant  and  comparable  sales  information  in  our  suite  of 
online products – CoStar Property Professional, CoStar Tenant and CoStar COMPS Professional. 

Our information technology team is responsible for developing the infrastructure necessary to support CoStar’s 
business processes, our comprehensive database of commercial real estate information and analytic services and our 
extensive  image  library.  The  team  implements  technologies  and  systems  that  introduce  efficient  workflows  and 
controls that increase the production capacity of our research teams and improve the quality of our data.  Over the 
years,  the  team  has  developed  data  collection  and  quality  control  mechanisms  that  we  believe  are  unique  to  the 
commercial real estate industry. The team continues to develop and modify our enterprise information management 
system that integrates CoStar sales, research, field research, customer support and accounting information.  We use 
this system to maintain our commercial real estate research information, manage contacts with the commercial real 
estate community, provide research workflow automation and conduct daily automated quality assurance checks. In 
addition,  our  information  technology  team  has  also  developed  fraud-detection  technology  to  detect  and  prevent 
unauthorized access to our services.  

Our  information  technology  professionals  also  maintain  the  servers  and  network  components  necessary  to 
support CoStar services and research systems.  Our encrypted virtual private  network provides remote researchers 
and salespeople secure access to CoStar applications and network resources. CoStar maintains a comprehensive data 
protection  policy  that  provides  for  use  of  encrypted  data  fields  and  off-site  storage  of  all  system  backups,  among 
other protective measures.  CoStar’s services are continually monitored in an effort to ensure our customers fast and 
reliable access.   

Services 

Our  suite  of  information  and  analytic  services  is  branded  and  marketed  to  our  customers.  Our  services  are 
derived  from  a  database  of  building-specific  information  and  offer  customers  specialized  tools  for  accessing, 
analyzing  and  using  our  information.  Over  time,  we  expect  to  continue  to  enhance  our  existing  information  and 
analytic services and develop additional services that make use of our comprehensive database to meet the needs of 
our existing customers as well as potential new categories of customers. 

Our various information and analytic services are described in detail in the following paragraphs as of January 

31, 2012: 

CoStar Property Professional®   CoStar Property Professional, or ―CoStar Property,‖ is the Company’s flagship 
service. It provides subscribers a comprehensive inventory of office, industrial, retail and multifamily properties and 
land in markets throughout the U.S., including for-lease and for-sale listings, historical data, building photographs, 
maps and floor plans. Commercial real estate professionals use CoStar Property to identify available space for lease, 
evaluate leasing and sale opportunities, value assets and position properties in the marketplace. Our clients also use 
CoStar Property to analyze market conditions by calculating current vacancy rates, absorption rates or average rental 
rates,  and  forecasting  future  trends  based  on  user  selected  variables.  CoStar  Property  provides  subscribers  with 
powerful map-based search capabilities as well as a user controlled, password protected extranet (or electronic ―file 
cabinet‖) where brokers may share space surveys and transaction-related documents online, in real time, with team 
members. When used together with CoStar Connect, CoStar Property enables subscribers to share space surveys and 
transaction-related  documents  with  their  clients,  accessed  through  their  corporate  website.  CoStar  Property,  along 
with all of CoStar’s other core information and analytic services, is delivered solely via the internet.   

CoStar  COMPS  Professional®      CoStar  COMPS  Professional,  or  ―COMPS  Professional,‖  provides 
comprehensive  coverage  of  comparable  sales  information  in  the  U.S.  commercial  real  estate  industry.  It  is  the 
industry’s  most  comprehensive  database  of  comparable  sales  transactions  and  is  designed  for  professionals  who 
need to research property comparables, identify market trends, expedite the appraisal process and support property 
valuations.  COMPS  Professional  offers  subscribers  numerous  fields  of  property  information,  access  to  support 
documents  (e.g.,  deeds  of  trust)  for  new  comparables,  demographics  and  the  ability  to  view  for-sale  properties 
alongside sold properties in three formats – plotted on a map, aerial image or in a table. 

CoStar  Tenant®      CoStar  Tenant  is  a  detailed  online  business-to-business  prospecting  and  analytical  tool 
providing  commercial  real  estate  professionals  with  the  most  comprehensive  commercial  real  estate-related  U.S. 
tenant  information  available.  CoStar  Tenant  profiles  tenants  occupying  space  in  commercial  buildings  across  the 
U.S.  and  provides  updates  on  lease  expirations  -  one  of  the  service’s  key  features  -  as  well  as  occupancy  levels, 

10 

 
 
 
 
 
 
 
 
 
growth rates and numerous other facts. Delivering this information via the internet allows users to target prospective 
clients quickly through a searchable database that identifies only those tenants meeting certain criteria. 

CoStarGo™      CoStarGo  is  an  iPad  application  that  integrates  our  comprehensive  property,  tenant  and 
comparable  sales  information  in  our  suite  of  online  products  –  CoStar  Property  Professional,  CoStar  Tenant  and 
CoStar  COMPS  Professional.    CoStarGo  provides  a  single,  location-centric  mobile  interface  that  allows  users  to 
access and display comprehensive information on millions of properties and gain instant access to analytic data and 
demographic information from the field. 

CoStar Showcase®   CoStar Showcase offers commercial real estate professionals a simple way to get their for-
sale and for-lease listings in front of a broad internet audience who search on Google, Yahoo, Bing, Showcase.com 
and Costar.com to find commercial properties.  When customers sign up for CoStar Showcase, their listings become 
accessible to visitors to  Showcase.com and  Costar.com,  who can search those listings for free.  To drive traffic to 
CoStar  Showcase  subscriber  listings,  CoStar  invests  in  Google,  Yahoo  and  Bing  keyword  based  pay-per-click 
advertising to capture the high volume traffic of users actively searching for commercial properties on those search 
engines.  As part of their CoStar Showcase  subscription, subscribers also receive customized  websites  for each of 
their  brokers  that  displays  their  bio,  photo,  contact  information  and  updated  listings  that  they  can  use  to  promote 
their services. CoStar Showcase can be purchased as a firm-wide annual subscription by firms who want all of their 
brokers to be able to access the service, or it can be purchased by individual brokers on a month-to-month basis.   

CoStar  Advertising®      CoStar  Advertising  offers  property  owners  a  highly  targeted  and  cost  effective  way  to 
market  a  space  for  lease  or  a  property  for  sale  directly  to  the  individuals  looking  for  that  type  of  space  through 
interactive  advertising.  Our  advertising  model  is  based  on  varying  levels  of  exposure,  enabling  the  advertiser  to 
target  as  narrowly  or  broadly  as  its  budget  permits.  With  the  CoStar  Advertising  program,  when  the  advertiser’s 
listings appear in a results set, they receive priority positioning and are enhanced to stand out.  The advertiser can 
also purchase exposure in additional submarkets, or the entire market area so that this ad will appear even when this 
listing would not be returned in a results set. 

CoStar  Market  Report™      The  CoStar  Market  Report  provides  in-depth  current  and  historical  analytical 
information covering office, industrial and retail properties across the U.S.  Published quarterly, each market report 
includes  details  such  as  absorption  rates,  vacancy  rates,  rental  rates,  average  sales  prices,  capitalization  rates, 
existing  inventory  and  current  construction  activity.  This  data  is  presented  using  standard  definitions  and 
calculations developed by CoStar, and offers real estate professionals critical and unbiased information necessary to 
make  intelligent  commercial  real  estate  decisions.  CoStar  Market  Reports  are  available  to  CoStar  Property 
Professional subscribers at no additional charge. 

CoStar Property Express®   CoStar Property Express provides access, via an annual subscription, to a ―light‖ or 
scaled down version of CoStar Property. Commercial real estate professionals use CoStar Property Express to look 
up and search for-lease and for-sale listings in CoStar’s comprehensive national database. CoStar Property Express 
provides base building information, photos, floor plans, maps and a limited number of reports.  

CoStar Listings Express®   CoStar Listings Express provides access via an annual subscription to a listings only 
version of CoStar Property Express.  Commercial real estate professionals use CoStar Listings Express to look up 
and  search  for  lease  and  for  sale  listings  in  CoStar’s  comprehensive  national  database.    CoStar  Listings  Express 
provides base building information, photos, floor plans, maps and a limited number of reports on only properties that 
are either for lease or for sale.  CoStar Listings Express does not provide information on fully leased properties, as 
found in CoStar Property Professional and CoStar Property Express. 

CoStar  Connect®      CoStar  Connect  allows  commercial  real  estate  firms  to  license  CoStar’s  technology  and 
information  to  market  their  U.S.  property  listings  on  their  corporate  websites.  Customers  enhance  the  quality  and 
depth  of  their  listing  information  through  access  to  CoStar’s  database  of  content  and  digital  images.  The  service 
automatically  updates  via  the  CoStar  Property  database  and  manages  customers’  online  property  information, 
providing comprehensive listings coverage and significantly reducing the expense of building and maintaining their 
websites’ content and functionality.  

CoStar  Professional  Directory®      CoStar  Professional  Directory,  a  service  available  exclusively  to  CoStar 
Property Professional subscribers, provides detailed contact information for approximately  1.6 million commercial 
real  estate  professionals,  including  specific  information  about  an  individual’s  current  and  prior  activities  such  as 

11 

 
 
 
 
 
 
 
 
 
completed  transactions,  current  landlord  representation  assignments,  sublet  listings,  major  tenants  and  owners 
represented  and  local  and  national  affiliations.    Commercial  real  estate  brokers  can  input  their  biographical 
information and credentials and upload their photo to create personal profiles.  Subscribers use CoStar Professional 
Directory  to  network  with  their  peers,  identify  and  evaluate  potential  business  partners,  and  maintain  accurate 
mailing lists of other industry professionals for their direct mail marketing efforts. 

Metropolis™      The  Metropolis  service  is  a  single  interface  that  combines  commercial  real  estate  data  from 
multiple  information  providers  into  a  comprehensive  resource.  The  Metropolis  service  allows  a  user  to  input  a 
property address and then view detailed information on that property from multiple information providers, including 
CoStar services.  This  technology offers commercial  real estate professionals a simple and convenient  solution  for 
integrating  a  wealth  of  third  party  information  and  proprietary  data,  and  is  currently  available  for  the  Southern 
California markets. 

PPR®   Our subsidiary PPR, and its U.K. subsidiary, PPR UK, offer products and services designed to meet the 
research needs of commercial real estate investors and lenders. PPR covers metropolitan areas throughout the U.S., 
the  U.K.,  and  Europe,  with  offerings  including  historical  and  forecast  market  data  and  analysis  by  market  and 
property  type,  and  services  including  access  to  PPR’s  analysts,  economists,  and  strategists  to  develop  and  deliver 
custom  research  solutions.    Key  tools  include  analysis  of  underlying  property  data,  assessment  of  current  market 
fundamentals, forecasts of future market performance, and credit default models.   

PPR  Portal™  is  PPR’s  primary  delivery  platform  for  research,  forecasts,  analytics,  and  granular  data 
surrounding a specific address and property type. Information is organized around clearly defined tabs, for ease of 
access. The information is presented in written, table data, graphic, and map formats, and can easily be downloaded 
by the user for integration into its own analytical framework.  PPR’s Portal is used by lenders, investors, and owners 
to identify and price investment opportunities, manage assets and portfolios, and source and service capital. 

PPR COMPASS™ is PPR’s premier commercial real estate risk management tool. It allows users to calculate 
Probability of Default, Loss Given Default, Expected Loss, and Confidence Interval (of Expected Loss) results for a 
loan or a portfolio. It provides direct comparisons of credit risk and refinance risk across Time, Market, Property 
Type,  and  Loan  Structure  for  all  macroeconomic  forecast  scenarios.    COMPASSCRE  is  used  by  lenders,  issuers, 
ratings agencies, and regulators to estimate required loss reserves and economic capital, target lending opportunities, 
set pricing strategy, objectively compare/price loans, more effectively allocate capital, and manage refinance risk. 

Resolve  Portfolio  Maximizer®      Resolve  Portfolio  Maximizer  is  an  industry  leading  real  estate  portfolio 
management software solution. Resolve Portfolio Maximizer allows users to model partnership structures, calculate 
waterfall  distributions  and  fees,  model  and  analyze  debt  obligations,  and  create  multiple  ―what  if‖  scenarios  for 
alternative investment decisions. 

Request™      Request  is  the  first  business  intelligence  software  solution  built  specifically  for  managing 
commercial  real  estate  investments.  Request  helps  users  eliminate  some  of  the  difficulties  of  consolidating  real 
estate  investment  data  from  disparate  sources  and  facilitates  standardization  of  information  presentation  and 
reporting  across  an  organization.  Request  also  provides  a  platform  for  users  to  develop  business  intelligence  and 
reporting capabilities.  

VP  Corporate  Edition™    Our  subsidiary,  Virtual  Premise,  offers  VP  Corporate  Edition,  a  real  estate 
management  software  solution  designed  for  corporate  real  estate  managers,  company  executives,  business  unit 
directors,  brokers  and  project  managers.   VP  Corporate  Edition  helps  users  connect  real  estate  initiatives  with 
company  strategic  goals,  streamline  portfolio  operations,  automate  the  process  for  collecting  and  managing  space 
requests,  reduce  occupancy  costs  with  analytics  that  track  location  performance  against  targets,  and  maximize 
location performance through proactive portfolio management.  Virtual Premise also provides lease abstraction and 
data review services in order to facilitate the effective implementation of this software solution. 

VP Retail Edition™   VP  Retail Edition is  a real estate  management  software  solution  designed  for company 
executives, real estate dealmakers and store planning and construction managers.  VP Retail Edition helps users to 
utilize comprehensive and real-time data to establish goals and store strategies, manage the execution of real estate 
strategies,  summarize  critical  portfolio  data  to  drive  cost-saving  decisions,  and  benchmark  prerequisite  store-level 
information  and  metrics  for  maximizing  location  performance  through  proactive  portfolio  management.   Virtual 

12 

 
 
 
Premise also provides lease abstraction and data review services in order to facilitate the effective implementation of 
this software solution.  

FOCUS™      CoStar’s  U.K.  subsidiary,  CoStar  U.K.  Limited,  offers  several  services;  its  primary  service  is 
FOCUS.  FOCUS  is  a  digital  online  service  offering  information  on  the  U.K.  commercial  real  estate  market.  This 
service seamlessly links data  on individual properties and companies across the U.K., including comparable sales, 
available space, requirements, tenants, lease deals, planning information, socio-economics and demographics, credit 
ratings, photos and maps. 

Showcase.co.uk   Showcase.co.uk offers commercial real estate professionals a simple way to get their for-sale 
and for-lease listings in front of a broad internet audience who search on Google, Yahoo, Bing, and Showcase.co.uk 
to  find  commercial  properties.   When  customers  sign  up  for  Showcase.co.uk,  their  listings  become  accessible  to 
visitors to www.Showcase.co.uk and other CoStar URLs who can search those listings for free.  To drive traffic to 
Showcase.co.uk subscriber listings, CoStar UK Limited invests in Google, Yahoo and Bing keyword based pay-per-
click advertising to capture the high volume traffic of users actively searching for commercial properties on those 
search engines.  As part of their Showcase.co.uk subscription, subscribers also receive customized websites for each 
of their brokers that displays their bio, photo, contact information and updated listings that they can use to promote 
their services. Showcase.co.uk is available as a firm-wide annual subscription by firms who want all of their brokers 
to be able to access the service or can be purchased by a single location of a national firm on an annual subscription 
basis.   

Propex™      Propex  gives  users  access  to  the  commercial  property  investment  market.  It  is  used  by  U.K. 
investment agencies and professional investors and is a secure online exchange through which investment deals may 
be introduced. It is a primary channel for the distribution of live  transaction data and property research data in the 
U.K.  investment  market.    Propex  also  provides  private  investors  with  a  gateway  into  the  commercial  property 
investment market. It is a free-access listing website, which provides details of commercial property investments. It 
is used by U.K. agencies to sell investments suitable for the private investor. 

Shopproperty.co.uk™      Shopproperty  is  a  listing  database  of  available  retail  units  across  the  U.K.  on  a  free-
access website.  Shopproperty.co.uk is the only specialist listing website with fully licensed Goad street-trader plans. 

Grecam™   Our French subsidiary, Grecam S.A.S., provides commercial real estate information throughout the 
Paris region through its Observatoire Immobilier D’ Entreprise (―OIE‖) service offering.  The OIE service provides 
commercial property availability and transaction information to its subscribers through both an online service  and 
market reports. 

13 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Clients 

We draw clients from across the commercial real estate and related business community. Commercial real estate 
brokers have traditionally formed the largest portion of CoStar clients, however, we also provide services to owners, 
landlords, financial institutions, retailers, vendors, appraisers, investment  banks, governmental agencies, and other 
parties involved in commercial real estate. The  following  chart lists U.S. and U.K. clients  that are  well  known or 
have the highest annual subscription fees in each of the various categories, each as of January 31, 2012. 

Brokers 

Binswanger 
BNP Paribas — U.K. 
Carter 
Cassidy Turley 
CB Richard Ellis 
CB Richard Ellis — U.K. 
Charles Dunn Company, Inc. 
Coldwell Banker Commercial NRT 
Colliers 
Colliers International UK  — U.K. 
CRESA 
Cushman & Wakefield 
Cushman & Wakefield  — U.K. 
DAUM Commercial Real Estate Services 
Drivers Jonas Deloitte — U.K. 
DTZ — U.K. 
Gerald Eve — U.K. 
Grubb & Ellis 
GVA Grimley — U.K. 
HFF 
Japan Real Estate Institute  — U.K. 
Jones Lang LaSalle 
Jones Lang LaSalle — U.K. 
Kidder Mathews 
Lambert Smith Hampton — U.K. 
Marcus & Millichap 
Mohr Partners 
NAI Global 
Newmark Knight Frank 
Re/Max 
Savills Commercial — U.K. 
Sperry Van Ness 
Studley 
UGL 
U.S. Equities Realty 
USI Real Estate Brokerage Services 
Weichert Commercial Brokerage 

Lenders, Investment Bankers 
  AEGON USA Realty Advisors, Inc. 
  Bank of America, N.A. 
  Citibank 
  Deutsche Bank 
  GE Capital 

JP Morgan Chase Bank 

  Key Bank 
  Q10 Capital LLC 

Suntrust 
TD Bank 
  Wells Fargo 

Institutional Advisors, Asset Managers 

  AEW Capital Management LP 
  BlackRock 
  Hartford Investment Management Company 

ING Clarion Partners 

  Manulife Financial 
  Metropolitan Life 
  NorthMarq Capital 

Progressive Casualty Insurance Co. 
Prudential 
Prudential — U.K. 

  USAA Real Estate Company 

Owners, Developers 

Appraisers, Accountants 

  Hines 

Industrial Developments International 
LNR Property Corp 

  MWB Business Services — U.K. 
Shorenstein Company, LLC 
Tishman Speyer 

  Deloitte 
Integra 
  KPMG 
  Marvin F. Poer 

Price Waterhouse Coopers 
Thomson Reuters 

Retailers 

7-Eleven 
  Denny’s 
  Dollar General Corporation  
  Herman Miller 
  Massage Envy 
  Rent-A-Center  

Sony 
Spencer Gifts LLC 
Taco Bell 
  Walgreens 

Government Agencies 

  City of Chicago 
  Cook County Assessor’s Office 
  County of Los Angeles 

Federal Deposit Insurance Corporation 
Federal Reserve Bank of New York 
Internal Revenue Service 
Scottish Enterprise — U.K. 
Transportation Security Administration 

  U.S. Department of Housing and Urban Development 
  U.S. General Services Administration 

REITs 

Boston Properties 
Brandywine Realty Trust 
Brookfield Properties 
Duke Realty Corporation 
Kimco Realty Corporation 
Simon Property Group, Inc. 
Vornado/Charles E. Smith 

Property Managers 

  Asset Plus Corporation 

Leggat McCall Properties 
Lincoln Property Company 

  Navisys Group 
  Osprey Management Company 

PM Realty Group 
Transwestern Commercial Services 

Vendors 

  ADT Security 
  Comcast Corporation 
  Cox Communications, Inc. 
  Kastle Systems 

Time Warner Cable, Inc. 
Turner Construction Company 
  Verizon Communications, Inc. 

For the  years ended December 31,  2009, 2010 and 2011, no single client accounted for more than  5% of our 

revenues.  

14 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Sales and Marketing 

As of January 31, 2012, we had 313 sales, marketing and customer support employees, with the majority of our 
direct  sales  force  located  in  field  sales  offices.  Our  sales  teams  are  primarily  located  in  26  field  sales  offices 
throughout the U.S. and in offices located in London, England; Manchester, England; Glasgow, Scotland and Paris, 
France.    Our  inside  sales  team  is  located  in  our  downtown  Washington,  DC,  office.  This  team  prospects  for  new 
clients and performs service demonstrations exclusively by telephone and over the internet to support the direct sales 
force.   

Our  local  offices  typically  serve  as  the  platform  for  our  in-market  sales,  customer  support  and  field  research 
operations for their respective regions. The sales force is responsible for selling to new prospects, training new and 
existing clients, providing ongoing customer support, renewing existing client contracts and identifying cross-selling 
opportunities. In addition, the sales force has primary front line responsibility for customer care. 

Our sales strategy is to aggressively attract new clients, while providing ongoing incentives for existing clients 
to  subscribe  to  additional  services.  We  actively  manage  client  accounts  in  order  to  retain  clients  by  providing 
frequent  service  demonstrations  as  well  as  company-client  contact  and  communication.    We  place  a  premium  on 
training new and existing client personnel on the use of our services so as to promote maximum client utilization and 
satisfaction with our services.  Our strategy also involves entering into multi-year, multi-market license agreements 
with our larger clients. 

We  seek  to  make  our  services  essential  to  our  clients’  businesses.  To  encourage  clients  to  use  our  services 
regularly, we generally charge a fixed monthly amount for our subscription-based services rather than fees based on 
actual system usage. Contract rates are generally based on the number of sites, number of users, organization size, 
the  client’s  business  focus,  geography  and  the  number  of  services  to  which  a  client  subscribes.  Our  subscription 
clients generally pay contract fees on a monthly basis, but in some cases may pay us on a quarterly or annual basis.   

Our customer service and support staff is charged with ensuring high client satisfaction by providing ongoing 

customer support.  

Our  primary  marketing  methods  include:  service  demonstrations;  face  to  face  networking;  web-based 
marketing;  direct  marketing;  communication  via  our  corporate  website  and  news  services;  participation  in  trade 
show  and  industry  events;  Company-sponsored  events;  print  advertising  in  trade  magazines  and  other  business 
publications; client referrals;  and CoStar  Advisor™, the Company’s newsletter,  which is distributed to our clients 
and prospects.  We currently  offer dozens of  webinars each  year aimed at helping customers learn  more about  the 
commercial real estate industry and how to use our services.  The webinars are available both as live presentations 
and as on-demand programs hosted on our website.  On a monthly basis, we issue the CoStar Commercial Repeat 
Sales  Index  (CCRSI),  a  comprehensive  set  of  benchmarks  that  investors  and  other  market  participants  can  use  to 
better understand commercial real estate price movements.  The Index is produced using our underlying data and is 
publicly distributed by CoStar through the news media and made available online at www.costar.com/ccrsi. 

Web-based marketing and direct marketing are the most cost-effective means for us to find prospective clients. 
Our  web-based  marketing  efforts  include  paid  advertising  with  major  search  engines  and  commercial  real  estate 
news sites and our direct marketing efforts include direct mail, email and telemarketing, and make extensive use of 
our unique, proprietary database. Once we have identified a prospective client, our most effective sales method is a 
service  demonstration.  We  use  various  forms  of  advertising  to  build  brand  identity  and  reinforce  the  value  and 
benefits  of  our  services.  We  also  sponsor  and  attend  local  association  activities  and  events,  including  industry-
leading  events  for  commercial  brokers  and  retail  and  financial  services  institutions,  and  attend  and/or  exhibit  at 
industry trade shows and conferences to reinforce our relationships with our core user groups. 

15 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Competition 

The  market  for  information  and  analytic  services  generally  is  competitive  and  rapidly  changing.  In  the 
commercial real estate industry, the principal competitive factors for commercial real estate information and analytic 
services and providers are: 

• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 
• 

quality and depth of the underlying databases;  
ease of use, flexibility, and functionality of the software;  
timeliness of the data;  
breadth of geographic coverage and services offered;  
client service and support;  
perception that the service offered is the industry standard;  
price;  
effectiveness of marketing and sales efforts;  
proprietary nature of methodologies, databases and technical resources; 
vendor reputation;  
brand loyalty among customers; and  
capital resources.  

We compete directly and indirectly for customers with the following categories of companies: 

• 

• 

• 

• 

• 

• 

online  marketing  services  or  websites  targeted  to  commercial  real  estate  brokers,  buyers  and  sellers  of 
commercial  real  estate  properties,  insurance  companies,  mortgage  brokers  and  lenders,  such  as 
PropertyLine.com,  LoopNet, 
officespace.com, 
MrOfficeSpace.com, TenantWise, Inc., WorkplaceIQ, RealPoint LLC and RealUp; 

Inc.,  Reed  Business 

Information  Limited, 

publishers and distributors of information and analytic services, including regional providers and national 
print publications, such as Xceligent, Inc., eProperty Data, CBRE Economic Advisors, Marshall & Swift, 
Yale Robbins, Inc., Reis, Inc., Real Capital Analytics, Inc. and The Smith Guide, Inc.; 

locally controlled real estate boards, exchanges or associations sponsoring property listing services and the 
companies  with  whom  they  partner,  such  as  Xceligent,  Inc.,  eProperty  Data,  Catalyst,  the  National 
Association of Realtors, CCIM Institute, Society of Industrial and Office Realtors (SIOR) the Commercial 
Association of Realtors Data Services and the Association of Industrial Realtors (AIR); 

real  estate  portfolio  management  software  solutions,  such  as  Cougar  Software,  Yardi  Systems,  MRI 
Software, Altus (Argus Software) and Intuit Inc.; 

in-house research departments operated by commercial real estate brokers; and 

public record providers.  

As the commercial real estate  information and analytic services  marketplace develops, additional competitors 
(including companies which could have greater access to data, financial, product development, technical, analytic or 
marketing resources than we do) may enter the market and competition may intensify.  A company like Bloomberg 
L.P.  has  the  resources  and  has  previously  announced  an  intention  to  move  into  the  commercial  real  estate 
information business.  Further, a company like Google, which has a far-reaching web presence and substantial data 
aggregation  capabilities,  could  easily  enter  the  commercial  real  estate  marketing  arena.  While  we  believe  that  we 
have successfully differentiated ourselves from existing competitors, current or future competitors could materially 
harm our business. 

16 

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
Proprietary Rights  

To  protect  our  proprietary  rights  in  our  methodologies,  database,  software,  trademarks  and  other  intellectual 

property, we depend upon a combination of: 

• 
• 
• 
• 
• 

trade secret, copyright, trademark, database protection and other laws;  
nondisclosure, noncompetition and other contractual provisions with employees and consultants;  
license agreements with customers;  
patent protection; and  
technical measures.  

We  seek  to  protect  our  software’s  source  code,  our  database  and  our  photography  as  trade  secrets  and  under 
copyright  law.  Although  copyright  registration  is  not  a  prerequisite  for  copyright  protection,  we  have  filed  for 
copyright  registration  for  many  of  our  databases,  photographs,  software  and  other  materials.  Under  current  U.S. 
copyright  law,  the  arrangement  and  selection  of  data  may  be  protected,  but  the  actual  data  itself  may  not  be.  In 
addition, with respect to our U.K. databases, certain database protection laws provide additional protections of these 
databases. We license our services  under license  agreements that  grant our clients  non-exclusive, non-transferable 
licenses.  These  agreements  restrict  the  disclosure  and  use  of  our  information  and  prohibit  the  unauthorized 
reproduction or transfer of the information and analytic services we license. 

We  also  attempt  to  protect  the  secrecy  of  our  proprietary  database,  our  trade  secrets  and  our  proprietary 
information  through  confidentiality  and  noncompetition  agreements  with  our  employees  and  consultants.  Our 
services also include technical measures designed to discourage and detect unauthorized copying of our intellectual 
property.  We  have  established  an  internal  antipiracy  team  that  uses  fraud-detection  technology  to  continually 
monitor our services to detect and prevent unauthorized access, and we actively prosecute individuals and firms that 
engage in this unlawful activity. 

We have filed trademark applications to register trademarks for a variety of names for CoStar services and other 
marks, and have obtained registered trademarks for a variety of our marks, including ―CoStar,‖ ―COMPS,‖ ―CoStar 
Property,‖ ―CoStar Tenant,‖ ―CoStar Showcase‖ and ―CoStar Group.‖ Depending upon the jurisdiction, trademarks 
are generally  valid as long as they are in use  and/or their registrations are properly  maintained and they  have  not 
been  found  to  become  generic.    We  consider  our  trademarks  in  the  aggregate  to  constitute  a  valuable  asset.    In 
addition, we have filed several patent applications covering certain of our methodologies and software and currently 
have  one  patent  in  the  U.K.  which  expires  in  2021  covering,  among  other  things,  certain  of  our  field  research 
methodologies,  and  six  patents  in  the  U.S.  which  expire  in  2020,  2021,  2022,  2023  (2  patents)  and  2025, 
respectively, covering, among other things, critical elements of CoStar’s proprietary field research technology and 
mapping  tools.    We  regard  the  rights  under  our  patents  as  valuable  to  our  business  but  do  not  believe  that  our 
business is materially dependent on any single patent or on our portfolio of patents as a whole. 

Employees 

As  of  January  31,  2012,  we  employed  1,514  employees.  None  of  our  employees  are  represented  by  a  labor 

union. We have experienced no work stoppages. We believe that our employee relations are excellent. 

Available Information 

Our  investor  relations  internet  website  is  http://www.costar.com/investors.aspx.  The  reports  we  file  with  or 
furnish  to  the  Securities  and  Exchange  Commission,  including  our  annual  report,  quarterly  reports  and  current 
reports, are available free of charge on our internet website as soon as reasonably practicable after we electronically 
file such material with, or furnish it to, the Securities and Exchange Commission. You may review and copy any of 
the information we file with the Securities and Exchange Commission at the Commission's Public Reference Room 
at  100  F  Street,  NE,  Washington,  DC  20549.  You  may  obtain  information  regarding  the  operation  of  the  Public 
Reference Room by calling the SEC at 1-800-SEC-0330.  The Securities and Exchange Commission maintains an 
internet site that contains reports, proxy and information statements, and other information regarding issuers that file 
electronically with the Commission at http://www.sec.gov. 

17 

 
 
 
 
 
 
 
 
 
 
 
 
 
Item 1A.  Risk Factors 

Cautionary Statement Concerning Forward-Looking Statements 

We  have  made  forward-looking  statements  in  this  Report  and  make  forward-looking  statements  in  our  press 
releases  and  conference  calls  that  are  subject  to  risks  and  uncertainties.  Forward-looking  statements  include 
information  that  is  not  purely  historic  fact  and  include,  without  limitation,  statements  concerning  our  financial 
outlook for 2012 and beyond, our possible or assumed future results of operations generally, and other statements 
and  information  regarding  assumptions  about  our  revenues,  EBITDA,  adjusted  EBITDA,  non-GAAP  net  income, 
non-GAAP  net  income  per  share,  fully  diluted  net  income,  combined  financial  metrics  related  to  the  LoopNet 
acquisition,  the  timing  of  the  LoopNet  acquisition,  taxable  income,  cash  flow  from  operating  activities,  available 
cash, operating costs, amortization expense, intangible asset recovery, net income per share, diluted net  income per 
share, weighted-average outstanding shares, capital and other expenditures, effective tax rate, equity compensation 
charges, future taxable income, purchase amortization, financing plans, geographic expansion, product development, 
acquisitions,  contract  renewal  rate,  capital  structure,  contractual  obligations,  legal  proceedings  and  claims,  our 
database, database growth, services and facilities, employee relations, future economic performance, our ability to 
liquidate or realize our long-term investments, management’s plans, goals and objectives for future operations, and 
growth  and  markets  for  our  stock.  Sections  of  this  Report  which  contain  forward-looking  statements  include 
―Business,‖  ―Risk  Factors,‖  ―Properties,‖  ―Legal  Proceedings,‖  ―Management’s  Discussion  and  Analysis  of 
Financial  Condition  and  Results  of  Operations,‖  ―Quantitative  and  Qualitative  Disclosures  About  Market  Risk,‖ 
―Controls and Procedures‖ and the Financial Statements and related Notes.  

Our  forward-looking  statements  are  also  identified  by  words  such  as  ―believes,‖  ―expects,‖  ―thinks,‖ 
―anticipates,‖ ―intends,‖ ―estimates,‖ ―potential‖ or similar expressions. You should understand that these forward-
looking  statements  are  estimates  reflecting  our  judgment,  beliefs  and  expectations,  not  guarantees  of  future 
performance. They are subject to a number of assumptions, risks and uncertainties that could cause actual results to 
differ  materially  from  those  expressed  or  implied  in  the  forward-looking  statements.  The  following  important 
factors, in addition to those discussed or referred to under the heading ―Risk Factors,‖ and other unforeseen events 
or circumstances, could affect our future results and could cause those results or other outcomes to differ materially 
from those expressed or implied in our forward-looking statements: commercial  real estate  market conditions; the 
pace of recovery in the commercial real estate market; general economic conditions; our ability to identify, acquire 
and  integrate  acquisition  candidates;  the  possibility  that  the  FTC  will  request  additional  extensions  to  the  waiting 
period  imposed  by  the  HSR  Act;  the  possibility  that  CoStar,  LoopNet  and  the  FTC  cannot  reach  a  mutually 
acceptable resolution in a timely manner or at all; the possibility that the LoopNet merger does not close, including, 
but not limited to, due to the failure to obtain governmental approval; conditions, divestitures or changes relating to 
the operations or assets of LoopNet and CoStar that may be required to obtain governmental clearances or approvals 
to the merger; our ability to realize expected cost savings or other synergies from the LoopNet merger on a timely 
basis or at all; our ability to combine  the businesses of CoStar and LoopNet  successfully or in a timely and cost-
efficient  manner;  failure  to  obtain  any  required  financing  on  favorable  terms;  the  degree  of  business  disruption 
relating  to  the  LoopNet  merger;  the  use  of  the  net  proceeds  of  our  June  2011  equity  offering;  the  amount  of 
investment  in  CoStarGo  marketing  initiatives;  our  ability  to  realize  expected  expense  savings  from  various 
initiatives,  including  office  consolidations;  changes  or  consolidations  within  the  commercial  real  estate  industry; 
customer  retention;  our  ability  to  attract  new  clients;  our  ability  to  sell  additional  services  to  existing  clients;  our 
ability to integrate our U.S. and international product offerings; our ability to successfully introduce new products in 
U.S.  and  foreign  markets;  competition;  foreign  currency  fluctuations;  global  credit  market  conditions  affecting 
investments; our ability to continue to expand successfully; our ability to effectively penetrate the market for retail 
real  estate  information  and  gain  acceptance  in  that  market;  our  ability  to  control  costs;  litigation;  changes  in 
accounting  policies  or  practices;  release  of  new  and  upgraded  services  by  us  or  our  competitors;  data  quality; 
development  of  our  sales  force;  employee  retention;  technical  problems  with  our  services;  managerial  execution; 
changes  in  relationships  with  real  estate  brokers  and  other  strategic  partners;  legal  and  regulatory  issues;  and 
successful adoption of and training on our services. 

Accordingly, you should not place undue reliance on forward-looking statements, which speak only as of, and 
are based on information available to us on, the date of this Report. All subsequent written and oral forward-looking 
statements  attributable  to  us  or  any  person  acting  on  our  behalf  are  expressly  qualified  in  their  entirety  by  the 
cautionary statements contained or referred to in this section. We do not undertake any obligation to update any such 
statements or release publicly any revisions to these forward-looking statements to reflect events or circumstances 
after the date of this Report or to reflect the occurrence of unanticipated events. 

18 

 
 
 
 
 
Risk Factors 

Risks Related to our Pending Acquisition of LoopNet 

The failure to successfully integrate LoopNet’s business and operations and/or fully realize synergies from the 
merger in the expected time frame may adversely affect our future results.  Assuming completion of the merger with 
LoopNet, the success of that merger will depend, in part, on our ability to successfully integrate LoopNet’s business 
and operations and fully realize the anticipated benefits and synergies from combining our business and LoopNet’s 
business. However, to realize these anticipated benefits and synergies, our business and LoopNet’s business must be 
successfully combined. If we are not able to achieve these objectives following the merger, the anticipated benefits 
and synergies of the merger may not be realized fully or at all or may take longer to realize than expected.  

We and LoopNet have operated and, until the completion of the merger, will continue to operate independently. 
The integration process could result in the loss of key employees, loss of key clients, increases in operating costs, or 
the  disruption  of  each  company’s  ongoing  businesses,  any  or  all  of  which  could  adversely  affect  our  ability  to 
achieve the anticipated benefits and synergies of the merger. Integration efforts between the two companies will also 
divert management attention and resources. The success of the merger will depend in part on our ability to realize 
the anticipated growth opportunities and cost savings from integrating our business and LoopNet’s business, while 
minimizing  or  eliminating  any  difficulties  that  may  occur.  Even  if  the  integration  of  our  two  businesses  is 
successful, it may not result in the realization of the full benefits of the growth opportunities and cost savings that 
we currently expect or these benefits may not be achieved within the anticipated time frame. Any failure to timely 
realize  these  anticipated  benefits  could  have  a  material  adverse  effect  on  our  revenues,  expenses  and  operating 
results.  

Our  business  relationships,  including  client  relationships,  may  be  subject  to  disruption  due  to  uncertainty 
associated with the merger.  Parties with which we and LoopNet do business may experience uncertainty associated 
with  the  transaction,  including  with  respect  to  current  or  future  business  relationships  with  us,  LoopNet  or  the 
combined  business  of  both  companies.  Our  and  LoopNet’s  business  relationships  may  be  subject  to  disruption  as 
clients  and  others  may  attempt  to  negotiate  changes  in  existing  business  relationships  or  consider  entering  into 
business relationships with parties other than us, LoopNet or the combined business. These disruptions could have 
an adverse effect on the businesses, financial condition, results of operations or prospects of the combined business. 
The  adverse  effect  of  such  disruptions  could  be  exacerbated  by  delays  in  the  completion  of  the  merger  or 
termination of the merger agreement.   

The merger agreement may be terminated in accordance with its terms and the merger may not be completed.  
The merger agreement is subject to a number of conditions which must be fulfilled in order to complete the merger. 
Those conditions include: obtaining regulatory and antitrust approvals, absence of orders prohibiting the completion 
of the merger or imposing a ―Substantial Detriment‖ (as defined in the merger agreement), continued accuracy of 
the representations and warranties by both parties to the merger agreement and the performance by both parties of 
their covenants and agreements.  

In addition, both we and LoopNet have rights to terminate the  merger agreement under certain circumstances 

specified in the merger agreement.  

The merger is subject to the receipt of consents and approvals from governmental and regulatory entities that 
may  delay  the  date  of  completion  of  the  merger  or  impose  conditions  that  could  have  an  adverse  effect  on  us.  
Before the merger may be completed, approvals must be obtained from governmental authorities. Both CoStar and 
LoopNet filed notification and report forms with the Department of Justice and the FTC pursuant to the HSR Act, on 
May 31, 2011. As a result, the waiting period under the HSR Act with respect to the proposed merger between us 
and LoopNet  was originally scheduled to expire  on June 30, 2011. As previously reported in a Current Report on 
Form  8-K,  on  June 30,  2011,  CoStar  and  LoopNet  each  received  a  request  for  additional  information  (commonly 
referred  to  as a  ―second  request‖)  from  the  FTC  in  connection  with  its  review  of  the  merger. The  second  request 
extended the waiting period imposed by the HSR Act until 30 days after the parties have substantially complied with 
the second request unless that period is extended voluntarily by the parties or terminated sooner by the FTC. At the 
FTC’s request, CoStar and LoopNet subsequently agreed to extend the waiting period imposed by the HSR Act from 
30 days to 60 days after the date of substantial compliance with the second request, subject to further extension.  On 
November  4,  2011,  each  of  CoStar  and  LoopNet  certified  as  to  its  substantial  compliance  with  the  second 

19 

 
 
 
 
 
 
 
 
 
request.   CoStar and LoopNet subsequently voluntarily agreed to further extend the waiting period imposed by the 
HSR Act on a 45-day rolling basis to allow them to engage in discussions with the FTC to determine whether there 
is a possible basis for, and to discuss the possible terms of, a mutually acceptable consent order that would allow the 
merger to close. If either CoStar and LoopNet, on the one hand, or the FTC Staff, on the other hand, believe that 
discussions  towards  a  possible  consent  order  are  no  longer  moving  forward  productively,  either  may  trigger 
commencement  of  the  45-day  period,  in  writing,  after  the  expiration  of  which  the  waiting  period  imposed  by  the 
HSR Act will expire, unless extended voluntarily by the parties or terminated sooner by the FTC.  As of the date of 
filing of this  Annual Report on Form 10-K, the parties have not  yet reached agreement on the  terms of a  consent 
order, and there can be no assurance that such agreement will be reached in a timely manner or at all.  In the event 
the parties do not reach agreement on a consent decree and/or a party triggers commencement of the 45-day period, 
the FTC may seek an injunction to block consummation of the merger.   

In addition, the  FTC  may include conditions on the  completion of the  merger or require divestitures or other 
changes relating to our operations or assets, or LoopNet’s.  Such conditions, divestitures or changes could have the 
effect of jeopardizing or delaying completion of the merger or reducing the anticipated benefits of the merger, any of 
which might have a material adverse effect on the combined company following the merger. We are not obligated to 
complete the  merger if the regulatory approvals received in connection with the completion of the  merger include 
any  conditions  or  restrictions  that,  individually  or  in  the  aggregate,  would  reasonably  be  expected  to  impose  a 
Substantial Detriment, but we could choose to waive this condition.  

We will incur significant transaction costs as a result of the merger.  We expect to incur significant one-time 
transaction  costs  related  to  the  merger.  These  transaction  costs  include  investment  banking,  legal  and  accounting 
fees  and  expenses  and  filing  fees,  printing  expenses  and  other  related  charges.  We  may  also  incur  additional 
unanticipated  transaction  costs  in  connection  with  the  merger.  A  portion  of  the  transaction  costs  related  to  the 
merger  will  be  incurred  regardless  of  whether  the  merger  is  completed.  Additional  costs  will  be  incurred  in 
connection  with  integrating  the  two  companies’  businesses,  such  as  IT  integration  expenses.  Costs  in  connection 
with  the  merger  and  integration  may  be  higher  than  expected.  These  costs  could  adversely  affect  our  financial 
condition, results of operation or prospects of the combined business.  

Failure to complete the merger in certain circumstances could require us to pay a termination fee or expenses.  
If  the  merger  agreement  is  terminated  under  certain  circumstances,  we  could  be  obligated  to  pay  LoopNet  a 
$51.6 million  termination  fee.  Payment  of  the  termination  fee  could  materially  adversely  affect  our  results  of 
operations or financial condition. 

Our indebtedness following the completion of the merger will be substantially greater than our indebtedness on 
a  stand-alone  basis  and  greater  than  the  combined  indebtedness  of  CoStar  and  LoopNet  existing  prior  to  the 
transaction.  This  increased  level  of  indebtedness  could  adversely  affect  us,  including  by  decreasing  our  business 
flexibility and increasing our borrowing costs.  On February 16, 2012, we entered into a Credit Agreement by and 
among  CoStar, as borrower, CoStar Realty Information, Inc., as co-borrower, the lenders from time to time  party 
thereto and J.P. Morgan Bank, as administrative agent.  The Credit Agreement provides for a $175.0 million term 
loan  facility  and  a  $50.0  million  revolving  credit  facility,  each  with  a  term  of  five  years.    The  obligation  of  the 
lenders  to  make  the  loans  under  the  Credit  Agreement  is  subject  to  the  simultaneous  closing  of  the  merger  with 
LoopNet and the satisfaction of certain other conditions precedent.  We expect to use the proceeds of the term loan 
facility on the date on which such conditions are satisfied along with net proceeds from the equity offering in June 
2011 to pay a portion of the merger consideration and transaction costs related to the merger.   The proceeds of the 
revolving  credit  facility  may  be  used,  on  the  closing  date,  to  pay  for  transaction  costs  related  to  the  merger  and, 
thereafter, for working capital and other general corporate purposes of CoStar and its subsidiaries.    

The Credit Agreement contains customary restrictive covenants imposing operating and financial restrictions on 
us,  including  restrictions  that  may  limit  our  ability  to  engage  in  acts  that  may  be  in  our  long-term  best  interests. 
These  covenants  restrict  our  ability  and  the  ability  of  our  subsidiaries  (i) to  incur  additional  indebtedness,  (ii) to 
create, incur, assume or permit to exist any liens, (iii) to enter into mergers, consolidations or similar transactions, 
(iv) to  make  investments  and  acquisitions,  (v) to  make  certain  dispositions  of  assets,  (vi) to  make  dividends, 
distributions and prepayments of certain indebtedness, and (vii) to enter into certain transactions with affiliates. 

The operating restrictions and financial covenants in the Credit Agreement and any future financing agreements 
may  limit  our  ability  to  finance  future  operations  or  capital  needs  or  to  engage  in  other  business  activities.  Our 
ability to comply with any financial covenants could be materially affected by events beyond our control, and there 

20 

 
 
 
 
 
 
can be no assurance that we will satisfy any such requirements. If we fail to comply with these covenants, we may 
need to seek waivers or amendments of such covenants, seek alternative or additional sources of financing or reduce 
its expenditures. We may be unable to obtain such waivers, amendments or alternative or additional financing at all, 
or on favorable terms. 

If  an  event  of  default  occurs,  the  lenders  under  the  Credit  Agreement  are  able  to  declare  all  outstanding 
borrowings, together with accrued interest and other fees, to be immediately due and payable and exercise remedies 
in respect of the collateral. We may not be able to repay all amounts due under the Credit Agreement in the event 
these amounts are declared due upon an event of default.  

We and LoopNet may have difficulty attracting, motivating and retaining executives and other key employees in 
light of the merger.  Uncertainty about the effect of the merger on our employees and LoopNet employees may have 
an adverse effect on us and LoopNet, respectively, and consequently, the combined business. This uncertainty may 
impair each company’s ability to attract, retain and motivate key personnel until the merger is completed, or longer 
for the combined entity. Employee retention may be particularly challenging during the pendency of the merger, as 
employees  of  each  company  may  experience  uncertainty  about  their  future  roles  with  the  combined  business. 
Additionally,  LoopNet’s  officers  and  employees  may  own  shares  of  LoopNet’s  common  stock  and/or  have  stock 
option  or  restricted  stock  unit  grants  and,  if  the  merger  is  completed,  may  therefore  be  entitled  to  the  merger 
consideration, the payment of which could provide sufficient financial incentive for certain officers and employees 
to  no  longer  pursue  employment  with  the  combined  business.  If  our  key  employees  or  LoopNet’s  key  employees 
depart,  we  may  have  to  incur  significant  costs  in  identifying,  hiring  and  retaining  replacements  for  departing 
employees, which could reduce our ability to realize the anticipated benefits of the merger.   

An adverse judgment in a lawsuit challenging the merger may prevent the merger from becoming effective or 
from becoming effective within the expected timeframe.  One of the conditions to the closing of the merger is that no 
order, injunction or decree or other legal restraint or prohibition that prevents the completion of the  merger be in 
effect. If any plaintiff were successful in obtaining an injunction prohibiting LoopNet or CoStar from completing the 
merger  on  the  agreed-upon  terms,  then  such  injunction  may  prevent  the  merger  from  becoming  effective  or  from 
becoming effective within the expected timeframe.    

Risks Related to our Business 

A  downturn  or  consolidation  in  the  commercial  real  estate  industry  may  decrease  customer  demand  for  our 
services. A reversal of recent improvements in the commercial real estate industry’s leasing activity and absorption 
rates or a renewed downturn in the commercial real estate market may affect our ability to generate revenues  and 
may lead to more cancellations by our current or future customers, either of which could cause our revenues or our 
revenue  growth  rate  to  decline  and  reduce  our  profitability.  A  depressed  commercial  real  estate  market  has  a 
negative impact on our core customer base, which could decrease demand for our information and analytic services. 
Also, companies in this industry are consolidating, often in order to reduce expenses. Consolidation, or other cost-
cutting measures by our customers, may lead to more cancellations of our information and analytic services by our 
customers, reduce the  number of our existing clients, reduce the  size  of our target  market or increase our clients’ 
bargaining power, all of which could cause our revenues to decline and reduce our profitability. 

Negative general economic conditions could increase our expenses and reduce our revenues. Our business and 
the commercial real estate industry are particularly affected by negative trends in the general economy. The success 
of  our  business  depends  on  a  number  of  factors  relating  to  general  global,  national,  regional  and  local  economic 
conditions,  including  perceived  and  actual  economic  conditions,  recessions,  inflation,  deflation,  exchange  rates, 
interest  rates,  taxation  policies,  availability  of  credit,  employment  levels,  and  wage  and  salary  levels.  Negative 
general economic conditions could adversely affect our business by reducing our revenues and profitability.  If we 
experience  greater  cancellations  or  reductions  of  services  and  failures  to  timely  pay,  and  we  do  not  acquire  new 
clients  or  sell  new  services  to  our  existing  clients,  our  revenues  may  decline  and  our  financial  position  would  be 
adversely  affected.    Adverse  national  and  global  economic  events,  as  well  as  any  significant  terrorist  attack,  are 
likely  to  have  a  dampening  effect  on  the  economy  in  general,  which  could  negatively  affect  our  financial 
performance and our stock price. Market disruptions may also contribute to extreme price and volume fluctuations 
in the stock market that may affect our stock price for reasons unrelated to our operating performance.  In addition, a 
significant increase in inflation could increase our expenses more rapidly than expected, the effect of which may not 
be offset by corresponding increases in revenue. Conversely, deflation resulting in a decline of prices could reduce 
our revenues.  In the current economic environment, it is difficult to predict whether we will experience significant 

21 

 
 
 
 
 
 
inflation or deflation in the near future. A significant increase in either could have an adverse effect on our results of 
operations.  

Our revenues and financial position will be adversely affected if we are not able to attract and retain clients. 
Our success and revenues depend on attracting and retaining  subscribers to our  information and analytic services. 
Our subscription-based information and analytic services generate the largest portion of our revenues. However, we 
may  be  unable  to  attract  new  clients,  and  our  existing  clients  may  decide  not  to  add,  not  to  renew  or  to  cancel 
subscription  services.  In  addition,  in  order  to  increase  our  revenue,  we  must  continue  to  attract  new  customers, 
continue to keep our cancellation rate low and continue to sell new services to our existing customers. We may not 
be able to continue to grow our customer base, keep the cancellation rate for customers and services low or sell new 
services  to  existing  customers  as  a  result  of  several  factors,  including  without  limitation:  economic  pressures;  the 
business failure of a current client or clients; a decision that customers have no need for our services; a decision to 
use alternative services; customers’ and potential customers’ pricing and budgetary constraints; consolidation in the 
real estate and/or financial services industries; data quality; technical problems; or competitive pressures. If clients 
cancel services or decide not to renew their subscription agreements, and we do not sell new services to our existing 
clients or attract new clients, then our renewal rate, and revenues may decline. 

Competition  could  render  our  services  uncompetitive.  The  market  for  information  systems  and  services  in 
general is highly competitive and rapidly changing.  Competition in this market may increase further as a result of 
current  recessionary  economic  conditions,  as  customer  bases  and  customer  spending  have  decreased  and  service 
providers are competing for fewer customer resources.   Our existing competitors, or future competitors, may have 
greater  name  recognition,  larger  customer  bases,  better  technology  or  data,  lower  prices,  easier  access  to  data, 
greater user traffic or greater financial, technical or marketing resources than we have. Our competitors may be able 
to undertake  more effective marketing campaigns, obtain more data, adopt more aggressive pricing policies, make 
more attractive offers to potential employees, subscribers, distribution partners and content providers or may be able 
to respond more quickly to new or emerging technologies or changes in user requirements. If we are unable to retain 
customers  or  obtain  new  customers,  our  revenues  could  decline.    Increased  competition  could  result  in  lower 
revenues and higher expenses, which would reduce our profitability.  

Our current or future geographic expansion plans may not result in increased revenues, which may negatively 
impact  our  business,  results  of  operations  and  financial  position.  Expanding  into  new  markets  and  investing 
resources towards increasing the depth of our coverage within existing markets imposes additional burdens on our 
research,  systems  development,  sales,  marketing  and  general  managerial  resources.    During  2012,  we  plan  to 
continue  to  increase  the  depth  of  our  coverage  in  the  U.S.,  U.K.  and  France,  and  we  may  expand  into  additional 
geographies.  If we are unable to manage our expansion efforts effectively, if our expansion efforts take longer than 
planned or if our costs for these efforts exceed our expectations, our financial position could be adversely affected. 
In  addition,  if  we  incur  significant  costs  to  improve  data  quality  within  existing  markets,  or  are  not  successful  in 
marketing and selling our services in these markets or in new markets, our expansion may have a material adverse 
effect on our financial position by increasing our expenses without increasing our revenues, adversely affecting our 
profitability. 

If we are not able to successfully identify,  finance and/or integrate acquisitions, our business operations and 
financial  position  could  be  adversely  affected.  We  have  expanded  our  markets  and  services  in  part  through 
acquisitions of complementary businesses, services, databases and technologies, and expect to continue to do so in 
the  future. Our strategy to acquire complementary companies or assets depends on our  ability to identify, and the 
availability of, suitable acquisition candidates. We may incur costs in the preliminary stages of an acquisition, but 
may  ultimately  be  unable  or  unwilling  to  consummate  the  proposed  transaction  for  various  reasons.    In  addition, 
acquisitions  involve  numerous  risks,  including  the  ability  to  realize  or  capitalize  on  synergy  created  through 
combinations;  managing  the  integration  of  personnel  and  products;  managing  geographically  remote  operations, 
such  as  SPN  in  Scotland,  Grecam  S.A.S.  in  France,  CoStar  U.K.  Limited,  Propex  and  Property  and  Portfolio 
Research Ltd. in the U.K.; the diversion of management’s attention from other business concerns; the inherent risks 
in entering markets and sectors in which we have either limited or no direct experience; and the potential loss of key 
employees or clients of the acquired companies. We may not successfully integrate acquired businesses or assets and 
may  not  achieve  anticipated  benefits  of  an  acquisition,  including  expected  synergies.  Acquisitions  could  result  in 
dilutive  issuances  of  equity  securities,  the  incurrence  of  debt,  one-time  write-offs  of  goodwill  and  substantial 
amortization expenses of other intangible assets.  We may be unable to obtain financing on favorable terms, or at all, 
if necessary to finance future acquisitions making it impossible or more costly to acquire complementary businesses.  
If we are able to obtain financing, the terms may be onerous and restrict our operations.   

22 

 
 
 
 
 
If we are unable to hire qualified persons for, or retain and continue to develop, our sales force, or if our sales 
force  is  unproductive,  our  revenues  could  be  adversely  affected.  In  order  to  support  revenues  and  future  revenue 
growth, we need to continue to develop, train and retain our sales force. Our ability to build and develop a strong 
sales  force  may  be  affected  by  a  number  of  factors,  including:  our  ability  to  attract,  integrate  and  motivate  sales 
personnel; our ability to effectively train our sales force; the ability of our sales force to sell an increased number of 
services;  our  ability  to  manage  effectively  an  outbound  telesales  group;  the  length  of  time  it  takes  new  sales 
personnel  to  become  productive;  the  competition  we  face  from  other  companies  in  hiring  and  retaining  sales 
personnel;  and  our  ability  to  effectively  manage  a  multi-location  sales  organization.  If  we  are  unable  to  hire 
qualified sales personnel and develop and retain the members of our sales force, including sales force management, 
or if our sales force is unproductive, our revenues or growth rate could decline and our expenses could increase.  See 
―We  and  LoopNet  may  have  difficulty  attracting,  motivating  and  retaining  executives  and  other  key  employees  in 
light  of  the  merger”  for  a  discussion  of  the  impact  the  pending  merger  with  LoopNet  may  have  on  our  ability  to 
attract, retain and motivate members of our sales force. 

Our  business  depends  on  retaining  and  attracting  highly  capable  management  and  operating  personnel.  Our 
success depends in large part on our ability to retain and attract management and operating personnel, including our 
President and Chief Executive Officer, Andrew Florance, and our other officers and key employees. Our business 
requires highly skilled technical, sales, management, web development, marketing and research personnel, who are 
in  high  demand  and  are  often  subject  to  competing  offers.  To  retain  and  attract  key  personnel,  we  use  various 
measures,  including  employment  agreements,  awards  under  a  stock  incentive  plan  and  incentive  bonuses  for  key 
executive officers. These measures may not be enough to retain and attract the personnel we need or to offset the 
impact on our business of the loss of the services of Mr. Florance or other key officers or employees.  See ―We and 
LoopNet may have difficulty attracting, motivating and retaining executives and other key employees in light of the 
merger” for a discussion of the impact the pending merger with LoopNet may have on our ability to attract, retain 
and motivate members our management and operating personnel. 

If we are unable to increase our revenues or our operating costs are higher than expected, our profitability may 
continue to decline and our operating results may fluctuate significantly. We may not be able to accurately forecast 
our  revenues  or  future  revenue  growth  rate.    Many  of  our  expenses,  particularly  personnel  costs  and  occupancy 
costs,  are  relatively  fixed.  As  a  result,  we  may  not  be  able  to  adjust  spending  quickly  enough  to  offset  any 
unexpected  increase  in  expenses  or  revenue  shortfall.  We  may  experience  higher  than  expected  operating  costs, 
including  increased  personnel  costs,  occupancy  costs,  selling  and  marketing  costs,  investments  in  geographic 
expansion, acquisition costs, communications costs, travel costs, software development costs, professional fees and 
other costs. If operating costs exceed our expectations and cannot be adjusted accordingly, our profitability may be 
reduced and our results of operations and financial position will be adversely affected.  Additionally, we may not be 
able to sustain our historic revenue growth rates, and our percentage revenue growth rates may decline.  Our ability 
to  increase  our  revenues  and  operating  profit  will  depend  on  increased  demand  for  our  services.    Our  sales  are 
affected  by,  among  other  things,  general  economic  and  commercial  real  estate  conditions.    Reduced  demand, 
whether due to changes in customer preference, a further weakening of the U.S. or global economy, competition or 
other reasons, may result in decreased revenue and growth, adversely affecting our operating results. 

International  operations  expose  us  to  additional  business  risks,  which  may  reduce  our  profitability.  Our 
international  operations  and  expansion  subject  us  to  additional  business  risks,  including:  currency  exchange  rate 
fluctuations;  adapting  to  the  differing  business  practices  and  laws  in  foreign  countries;  difficulties  in  managing 
foreign  operations;  limited  protection  for  intellectual  property  rights  in  some  countries;  difficulty  in  collecting 
accounts receivable and longer collection periods; costs of enforcing contractual obligations; impact of recessions in 
economies outside the U.S.; and potentially adverse tax consequences. In addition, international expansion imposes 
additional  burdens  on  our  executive  and  administrative  personnel,  systems  development,  research  and  sales 
departments,  and  general  managerial  resources.  If  we  are  not  able  to  manage  our  international  operations 
successfully,  we may incur higher expenses and our profitability may be reduced. Finally, the investment required 
for additional international expansion could exceed the profit generated from such expansion, which would reduce 
our profitability and adversely affect our financial position.  

Fluctuating foreign currencies may negatively impact our business, results of operations and financial position. 
Due  to  our  acquisitions  of  CoStar  U.K.  Limited  (formerly  FOCUS  Information  Limited),  SPN,  Grecam  S.A.S., 
Propex, and Property and Portfolio Research Ltd., a portion of our business is denominated in the British Pound and 
Euro and as a result, fluctuations in foreign currencies may have an impact on our business, results of operations and 

23 

 
 
 
 
 
 
financial  position.    Foreign  currency  exchange  rates  have  fluctuated  and  may  continue  to  fluctuate.    Significant 
foreign currency exchange rate fluctuations may negatively impact our international revenue, which in turn affects 
our consolidated revenue.  Currencies may be affected by internal factors, general economic conditions and external 
developments in other countries, all of which can have an adverse impact on a country’s currency. Currently, we are 
not party to any hedging transactions intended to reduce our exposure to exchange rate fluctuations. We may seek to 
enter into hedging transactions in the future, but we may be unable to enter into these transactions successfully, on 
acceptable terms or at all. We cannot predict whether we will incur foreign exchange losses in the future. Further, 
significant foreign exchange fluctuations resulting in a decline in the British Pound or Euro may decrease the value 
of  our  foreign  assets,  as  well  as  decrease  our  revenues  and  earnings  from  our  foreign  subsidiaries,  which  would 
reduce our profitability and adversely affect our financial position. 

U.S. political, credit and financial market conditions may negatively impact or impair the value of our current 
portfolio of cash, cash equivalents and investments, including U.S. Treasury securities and U.S.-backed investments, 
as  well  as  our  access  to  credit.    Our  cash,  cash  equivalents  and  investments  are  held  in  a  variety  of  common 
financial instruments, including U.S. treasury securities. Deterioration in the U.S. credit and financial markets  may 
result in losses or deterioration in the fair value of our cash, cash equivalents, or investments.   On August 5, 2011, 
Standard & Poor’s lowered its long term sovereign credit rating on the United States of America from AAA to AA+. 
This  downgrade,  and  any  future  downgrades  of  the  U.S.  credit  rating,  could  impact  the  stability  of  future  U.S. 
treasury  auctions,  affect  the  trading  market  for  U.S.  government  securities,  result  in  increased  interest  rates  and 
impair access to credit.  These factors could negatively impact the liquidity or valuation of our current portfolio of 
cash,  cash  equivalents,  and  investments,  which  may  affect  our  ability  to  fund  future  obligations.    Further,  these 
factors may result in an increase in interest rates and borrowing costs and make it more difficult to obtain credit on 
acceptable  terms,  which  may  affect  our  ability  to  fund  future  obligations  and  increase  the  costs  of  obtaining 
financing for future obligations. 

Negative  conditions  in  the  global  credit  markets  may  affect  the  liquidity  of  a  portion  of  our  long-term 
investments.    Currently,  our  long-term  investments  include  mostly  AAA-rated  auction  rate  securities  (―ARS‖), 
which  are  primarily  student  loan  securities  supported  by  guarantees  from  the  Federal  Family  Education  Loan 
Program  (―FFELP‖)  of  the  U.S.  Department  of  Education.  Continuing  negative  conditions  in  the  global  credit 
markets have prevented some investors from liquidating their holdings of auction rate securities because the amount 
of securities submitted for sale has exceeded the amount of purchase orders for such securities. As of December 31, 
2011, we held $27.3 million par value of ARS, all of which failed to settle at auctions. When an auction fails for 
ARS in which we have invested, we may be unable to liquidate some or all of these securities at par. In the event we 
need  or  desire  to  immediately  access  these  funds,  we  will  not  be  able  to  do  so  until  a  future  auction  on  these 
investments is successful,  a buyer is found outside the auction process or an alternative action  is determined. If a 
buyer is  found but  is  unwilling to purchase the  investments at par,  we  may incur a loss,  which  would reduce our 
profitability and adversely affect our financial position. 

Our ARS  investments  are  not  currently  trading  and  therefore  do  not  currently  have  a  readily  determinable 
market value.  The estimated fair value of the ARS no longer approximates par value.  We have used a discounted 
cash  flow  model  to  determine  the  estimated  fair  value  of  our  investment  in  ARS  as  of  December  31,  2011.   The 
assumptions  used  in  preparing  the  discounted  cash  flow  model  include  estimates  for  interest  rates,  credit  spreads, 
timing and amount of cash flows, liquidity risk premiums, expected  holding periods and default risk of the  ARS.  
Based on this assessment of fair value, as of December 31, 2011, we determined there was a decline in the fair value 
of our ARS investments of approximately $2.7 million.  The decline was deemed to be a temporary impairment and 
was  recorded  as  an  unrealized  loss  in  accumulated  other  comprehensive  loss  in  stockholders’  equity.    If  the 
issuers of these ARS are unable to successfully close future auctions and/or their credit ratings deteriorate, we may 
be  required  to  record  additional  unrealized  losses  in  accumulated  other  comprehensive  loss  or  an  other-than-
temporary impairment charge to earnings on these investments, which would reduce our profitability and adversely 
affect our financial position. 

We have not made any material changes in the accounting methodology used to determine the fair value of the 
ARS.  We do not expect any material changes in the near term to the underlying assumptions used to determine the 
unobservable inputs used to calculate the fair value of the ARS as of December 31,  2011.  However, if changes in 
these  assumptions  occur,  and,  should  those  changes  be  significant,  we  may  be  required  to  record  additional 
unrealized  losses  in  accumulated  other  comprehensive  loss  or  an  other-than-temporary  impairment  charge  to 
earnings on these investments. 

24 

 
 
 
 
 
 
We may be subject to legal liability for collecting, displaying or distributing information. Because the content in 
our database is collected from various sources and distributed to others, we may be subject to claims for breach of 
contract,  defamation,  negligence,  unfair  competition  or  copyright  or  trademark  infringement  or  claims  based  on 
other theories. We could also be subject to claims based upon the content that is accessible from our website through 
links to other websites or information on our website supplied by third parties. We could also be subject to claims 
that  the  collection  or  provision  of  certain  information  breached  laws  and  regulations  relating  to  privacy  and  data 
protection.  Even if these claims do not result in liability to us, we could incur significant costs in investigating and 
defending against any claims. Our potential liability for information distributed by us to others could require us to 
implement measures to reduce our exposure to such liability, which may require us to expend substantial resources 
and limit the attractiveness of our information and analytic services to users. 

Litigation or government investigations in which we become involved may significantly increase our expenses 
and  adversely  affect  our  stock  price.  Currently  and  from  time  to  time,  we  are  a  party  to  various  lawsuits.  Any 
lawsuits,  threatened  lawsuits  or  government  investigations  in  which  we  are  involved  could  cost  us  a  significant 
amount  of  time  and  money  to  defend,  could  distract  management’s  attention  away  from  operating  our  business, 
could  result  in  negative  publicity  and  could  adversely  affect  our  stock  price.  In  addition,  if  any  claims  are 
determined  against  us  or  if  a  settlement  requires  us  to  pay  a  large  monetary  amount  or  take  other  action  that 
materially  restricts  or  impedes  our  operations,  our  profitability  could  be  significantly  reduced  and  our  financial 
position could be adversely affected. We  cannot  make  assurances that  we  will  have any or sufficient insurance to 
cover any litigation claims. 

An impairment in carrying value of goodwill could negatively impact our consolidated results of operations and 
net  worth.  Goodwill  and  identifiable  intangible  assets  not  subject  to  amortization  are  tested  annually  by  each 
reporting unit on October 1st of each year for impairment and are tested for impairment more frequently based upon 
the  existence  of  one  or  more  indicators.    We  consider  our  operating  segments,  U.S.  and  International,  as  our 
reporting units under Financial Accounting Standards Board (―FASB‖) authoritative guidance for consideration of 
potential  impairment  of  goodwill.  We  assess  the  impairment  of  long-lived  assets,  identifiable  intangibles  and 
goodwill whenever events or changes in circumstances indicate that the carrying value may not be recoverable. The 
existence  of  one  or  more  of  the  following  indicators  could  cause  us  to  test  for  impairment  prior  to  the  annual 
assessment:   

•  Significant underperformance relative to historical or projected future operating results;  
•  Significant changes in the manner of our use of acquired assets or the strategy for our overall business; 
•  Significant negative industry or economic trends; or  
•  Significant decline in our market capitalization relative to net book value for a sustained period.  

These types of events or indicators and the resulting impairment analysis could result in goodwill impairment 
charges in the future, which would reduce our profitability. Impairment charges could negatively affect our financial 
results in the periods of such charges, which may reduce our profitability. As of December 31, 2011, we had $91.8 
million of goodwill, $67.5 million in our U.S. segment and $24.3 million in our International segment.  We expect to 
record significant, additional goodwill in connection with the LoopNet merger if that transaction is consummated. 

We may not be able to successfully introduce new or upgraded information and analytic services, which could 
decrease our revenues and our profitability. Our future business and financial success will depend on our ability to 
continue  to  introduce  new  and  upgraded  services  into  the  marketplace.  To  be  successful,  we  must  adapt  to  rapid 
technological changes by continually enhancing our information and analytic services. Developing new services and 
upgrades to services imposes heavy burdens on our systems department, management and researchers. This process 
is  costly,  and  we  cannot  assure  you  that  we  will  be  able  to  successfully  develop  and  enhance  our  services.  In 
addition, successfully launching and selling a new service puts pressure on our sales and marketing resources. If we 
are unable to develop new or upgraded services, then our customers may choose a competitive service over ours and 
our  revenues  may  decline  and  our  profitability  may  be  reduced.  In  addition,  if  we  incur  significant  costs  in 
developing new or upgraded services, are not successful in marketing and selling these new services or upgrades, or 
our customers fail to accept these new services, it could have a material adverse effect on our results of operations 
by decreasing our revenues and reducing our profitability. 

Our  expansion  into  the  commercial  real  estate  analytics  sector  may  not  be  successful  or  may  not  result  in 
increased  revenues,  which  may  negatively  impact  our  business,  results  of  operations  and  financial  position.  
Expanding into the commercial real estate market research and forecasting arena imposes additional burdens on our 

25 

 
 
 
 
 
 
 
research,  systems  development,  sales,  marketing  and  general  management  resources.    During  2012,  we  expect  to 
continue  to  expand  our  presence  in  the  commercial  real  estate  analytics  sector.    If  we  are  unable  to  manage  this 
expansion effectively or if our costs for this effort exceed our expectations, our financial position could be adversely 
affected.    In  addition,  if  we  incur  additional  costs  to  expand  our  analytics  services  and  we  are  not  successful  in 
marketing  or  selling  these  expanded  services,  our  expansion  may  have  a  material  adverse  effect  on  our  financial 
position by increasing our expenses without increasing our revenues, adversely affecting our profitability. 

As a result of consolidation of facilities, we may incur additional costs.  We have taken, and may continue to 
take, actions that may increase our cost structure in the short-term but are intended to reduce certain portions of our 
long-term cost structure, such as consolidation of office space. As a result of consolidation of office space, we may 
reduce  our  long-term  occupancy  costs,  but  incur  restructuring  charges.  If  our  long-term  cost  reduction  efforts  are 
ineffective or our estimates of cost savings are inaccurate, our profitability could be negatively impacted.  Expected 
savings  from  relocating  facilities  can  be  highly  variable  and  uncertain.  Further,  we  may  not  be  successful  in 
achieving the operating efficiencies or operating cost reductions expected from these efforts in the amounts or at the 
times we anticipate. 

If we are unable to enforce or defend our ownership and use of intellectual property, our business, competitive 
position and operating results could be harmed. The success of our business depends in large part on the intellectual 
property involved in our methodologies, database, services and software. We rely on a combination of trade secret, 
patent,  copyright  and  other  laws,  nondisclosure  and  noncompetition  provisions,  license  agreements  and  other 
contractual provisions and technical measures to protect our intellectual property rights. However, current law may 
not provide for adequate protection of our databases and the actual data. In addition, legal standards relating to the 
validity, enforceability and scope of protection of proprietary rights in internet related businesses are uncertain and 
evolving, and  we cannot assure  you of the future viability  or value of any of our proprietary rights. Our business 
could be significantly harmed if we are not able to protect our content and our other intellectual property. The same 
would be true if a court found that our services infringe other persons’ intellectual property rights. Any intellectual 
property lawsuits or threatened lawsuits in which we are involved, either as a plaintiff or as a defendant, could cost 
us  a  significant  amount  of  time  and  money  and  distract  management’s  attention  from  operating  our  business.  In 
addition, if we do not prevail on any intellectual property claims, this could result in a change to our methodology or 
information and analytic services and could reduce our profitability. 

Technical  problems  that  affect  either  our  customers’  ability  to  access  our  services,  or  the  software,  internal 
applications and systems underlying our services, could lead to reduced demand for our  information and analytic 
services, lower revenues and increased costs. Our business increasingly depends upon the satisfactory performance, 
reliability  and  availability  of  our  website,  the  internet  and  our  service  providers.  Problems  with  our  website,  the 
internet or the services provided by our local exchange carriers or internet service providers could result in slower 
connections for our customers or interfere with our customers’ access to our information and analytic services. If we 
experience technical problems in distributing our services, we could experience reduced demand for our information 
and  analytic  services.  In  addition,  the  software,  internal  applications  and  systems  underlying  our  services  are 
complex and may not be efficient or error-free. Our careful development and testing may not be sufficient to ensure 
that we will not encounter technical problems when we attempt to enhance our software, internal applications and 
systems. Any inefficiencies, errors or technical problems with our software, internal applications and systems could 
reduce the quality of our services or interfere with our customers’ access to our  information and analytic services, 
which could reduce the demand for our services, lower our revenues and increase our costs. 

If  we  are  not  able  to  obtain  and  maintain  accurate,  comprehensive  or  reliable  data,  we  could  experience 
reduced demand for our information and analytic services. Our  success depends on our clients’ confidence in the 
comprehensiveness,  accuracy  and  reliability  of  the  data  and  analysis  we  provide.  The  task  of  establishing  and 
maintaining  accurate  and  reliable  data  and  analysis  is  challenging.  If  our  data,  including  the  data  we  obtain  from 
third parties, or analysis is  not current,  accurate, comprehensive  or reliable, we  could experience reduced demand 
for our services or legal claims by our customers, which could result in lower revenues and higher expenses. Our 
U.S.  researchers  use  integrated  internal  research  processes  to  update  our  database.  Any  inefficiencies,  errors,  or 
technical problems with this application could reduce the quality of our data, which could result in reduced demand 
for our services, lower revenues and higher costs.   

Temporary or permanent outages of our computers, software  or telecommunications equipment could lead to 
reduced  demand  for  our  information  and  analytic  services,  lower  revenues  and  increased  costs.  Our  operations 
depend on our ability to protect our database, computers and software, telecommunications equipment and facilities 

26 

 
 
 
 
 
 
against  damage  from  potential  dangers  such  as  fire,  power  loss,  security  breaches,  computer  viruses  and 
telecommunications failures. Any temporary or permanent loss of one or more of these systems or facilities from an 
accident,  equipment  malfunction  or  some  other  cause  could  harm  our  business.  If  we  experience  a  failure  that 
prevents us from delivering our  information and analytic services to clients, we could experience reduced demand 
for our information and analytic services, lower revenues and increased costs. 

Changes in accounting and reporting policies or practices may affect our financial results or presentation of 
results, which may affect our stock price. Changes in accounting and reporting policies or practices could reduce our 
net  income,  which  reductions  may  be  independent  of  changes  in  our  operations.  These  reductions  in  reported  net 
income could cause our stock price to decline.  For example, in 2006, we adopted authoritative guidance for stock 
compensation, which required us to expense the value of granted stock options.  

Our  stock  price  may  be  negatively  affected  by  fluctuations  in  our  financial  results.  Our  operating  results, 
revenues and expenses may fluctuate as a result of changes in general economic conditions and also for many other 
reasons,  many  of  which  are  outside  of  our  control,  such  as:  cancellations  or  non-renewals  of  our  services; 
competition;  our  ability  to  control  expenses;  loss  of  clients  or  revenues;  technical  problems  with  our  services; 
changes  or  consolidation  in  the  real  estate  industry;  our  investments  in  geographic  expansion  and  to  increase 
coverage  in  existing  markets;  interest  rate  fluctuations;  the  timing  and  success  of  new  service  introductions  and 
enhancements;  successful  execution  of  our  expansion  plans;  data  quality;  the  development  of  our  sales  force; 
managerial  execution;  employee  retention;  foreign  currency  and  exchange  rate  fluctuations;  inflation;  successful 
adoption  of  and  training  on  our  services;  litigation;  acquisitions  of  other  companies  or  assets;  sales,  brand 
enhancement  and  marketing  promotional  activities;  client  support  activities;  changes  in  client  budgets;  or  our 
investments  in  other  corporate  resources.  In  addition,  changes  in  accounting  policies  or  practices  may  affect  our 
level of net income. Fluctuations in our financial results, revenues and expenses may cause the market price of our 
common stock to decline. 

Market  volatility  may  have  an  adverse  effect  on  our  stock  price.  The  trading  price  of  our  common  stock  has 
fluctuated widely in the past, and we expect that it will continue to fluctuate in the future. The price could fluctuate 
widely  based  on  numerous  factors,  including:  economic  factors;  quarter-to-quarter  variations  in  our  operating 
results;  changes  in  analysts’  estimates  of  our  earnings;  announcements  by  us  or  our  competitors  of  technological 
innovations  or  new  services;  general  conditions  in  the  commercial  real  estate  industry;  developments  or  disputes 
concerning copyrights or proprietary rights or other legal proceedings; and regulatory developments. In addition, the 
stock  market  in  general,  and  the  shares  of  internet-related  and  other  technology  companies  in  particular,  have 
experienced extreme price fluctuations. This volatility has had a substantial effect on the market prices of securities 
issued by  many companies for reasons unrelated to the  operating performance of the specific companies and  may 
have the same effect on the market price of our common stock. 

Item 1B. 

Unresolved Staff Comments 

None. 

Item 2. 

Properties 

On  February  5,  2010,  we  purchased  a  169,429  square-foot  office  building  located  at  1331  L  Street,  NW,  in 
downtown Washington, DC, through our wholly owned subsidiary, 1331 L Street Holdings, LLC (―Holdings‖), for 
use  as  our  new  headquarters  and  have  since  relocated  to  this  location.  This  facility  is  used  primarily  by  our  U.S. 
segment.  The lease for our previous headquarters in Bethesda, MD expired on October 15, 2010. 

On February 2, 2011, Holdings and GLL L-Street 1331, LLC (―GLL‖), an affiliate of Munich-based GLL Real 
Estate Partners GmbH, entered into a purchase and sale agreement pursuant to which (i) Holdings agreed to sell to 
GLL its interest in the office building located at 1331 L Street, NW, in downtown Washington, DC, and (ii) CoStar 
Realty Information, Inc. (―CoStar Realty‖), our wholly owned subsidiary, agreed to enter into a lease expiring May 
31, 2025 (with two 5-year renewal options) with GLL to lease back 149,514 square feet of the office space located 
in  this  building,  which  we  continue  to  use  as  our  corporate  headquarters.  The  closing  of  the  sale  took  place  on 
February 18, 2011.  

27 

 
 
 
 
 
 
 
 
 
 
Our principal facility in the U.K. is located in London, England, where we occupy approximately 11,000 square 
feet of office space.  Our lease for this facility has a maximum term ending October 20, 2018, with early termination 
at our option on October 21, 2013, with advance notice. This facility is used primarily by our International segment. 

In  addition  to  our  downtown  Washington,  DC  and  London,  England  facilities,  our  research  operations  are 
principally run out of leased spaces in San Diego, California; Columbia, Maryland; Glasgow, Scotland; and Paris, 
France. Additionally, we lease office space in a variety of other metropolitan areas, which generally house our field 
sales  offices.  These  locations  include,  without  limitation,  the  following:  New  York;  Los  Angeles;  Chicago;  San 
Francisco;  Sacramento; Boston; Manchester, England; Orange  County, California; Philadelphia; Houston; Atlanta; 
Phoenix;  Detroit;  Pittsburgh;  Fort  Lauderdale;  Denver;  Dallas;  Kansas  City;  Cleveland;  Cincinnati;  Indianapolis; 
Austin; Salt Lake City; Seattle; Portland and St. Louis.  Our subsidiaries, PPR and Resolve Technology, share space 
with  CoStar  in  one  facility  leased  in  Boston,  Massachusetts.    Our  subsidiary,  Virtual  Premise,  leases  a  facility  in 
Atlanta, Georgia. 

We believe these facilities are suitable and appropriately support our business needs. 

Item 3. 

Legal Proceedings 

Currently, and from time to time, we are involved in litigation incidental to the conduct of our business. We are 
not a party to any lawsuit or proceeding that, in the opinion of our management based on consultations with legal 
counsel, is likely to have a material adverse effect on our financial position or results of operations. 

Item 4. 

Mine Safety Disclosures 

Not Applicable.

28 

 
 
 
 
 
 
 
PART II 

Item 5. 

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

Price  Range  of  Common  Stock.  Our  common  stock  is  traded  on  the  Nasdaq  Global  Select  Market  under  the 
symbol ―CSGP.‖ The following table sets forth, for the periods indicated, the high and low daily closing prices per 
share of our common stock, as reported by the Nasdaq Global Select Market. 

Year Ended December 31, 2010 
First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

Year Ended December 31, 2011 
First Quarter 
Second Quarter 
Third Quarter 
Fourth Quarter 

High 

Low 

$  42.97 
$  45.95 
$  49.53 
$  57.75 

$  62.89 
$  72.84 
$  59.50 
$  68.39 

$  38.22 
$  38.80 
$  37.66 
$  48.86 

$  55.58 
$  55.86 
$  46.70 
$  49.22 

As of February 1, 2012, there were 559 holders of record of our common stock.  

Dividend  Policy.  We  have  never  declared  or  paid  any  dividends  on  our  common  stock.  Any  future 
determination to pay dividends will be at the discretion of our Board of Directors, subject to applicable limitations 
under  Delaware  law,  and  will  be  dependent  upon  our  results  of  operations,  financial  position  and  other  factors 
deemed relevant by our Board of Directors. We do not anticipate paying any dividends on our common stock during 
the foreseeable future, but intend to retain any earnings for future growth of our business.  

Recent  Issues  of  Unregistered  Securities.  We  did  not  issue  any  unregistered  securities  during  the  year  ended 

December 31, 2011.   

Issuer Purchases of Equity Securities.    The following table is a summary of our repurchases of common stock 

during each of the three months in the quarter ended December 31, 2011: 

ISSUER PURCHASES OF EQUITY SECURITIES 

Total Number of 
Shares 
Purchased 

Average Price Paid 
per Share 

Total Number of 
Shares Purchased 
as Part of Publicly 
Announced Plans 
or Programs 

Maximum Number of 
Shares that May Yet 
Be Purchased Under 
the Plans or 
Programs 

5,099  
    5,099 (1) 

$65.93 
$65.93 

Month, 2011 
October 1 through 31 
November 1 through 30 
December 1 through 31 
Total 

(1) The number of shares purchased consists of shares of common stock tendered by employees to the Company 
to satisfy the employees’ tax withholding obligations arising as a result of vesting of restricted stock grants under the 
Company’s  1998  Stock  Incentive  Plan,  as  amended,  and  the  Company’s  2007  Stock  Incentive  Plan,  as  amended, 
which shares were purchased by the Company based on their fair market value on the vesting date.  None of these 
share purchases were part of a publicly announced program to purchase common stock of the Company. 

29 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Stock Price Performance Graph  

The stock performance graph below shows how an initial investment of $100 in our common stock would have 

compared to:  

  An equal investment in the Standards & Poor's Stock 500 (―S&P 500‖) Index.  

  An equal investment in the S&P 500 Application Software Index. 

The  comparison  covers  the  period  beginning  December  31,  2006,  and  ending  on  December  31,  2011,  and 
assumes the reinvestment of any dividends. You should note that this performance is historical and is not necessarily 
indicative of future price performance.  

COMPARISON OF CUMULATIVE FIVE YEAR TOTAL RETURN 

CoStar Group, Inc.

S&P 500 Index

S&P 500 Application Software Index

200

150

100

50

0

S
R
A
L
L
O
D

12/31/06

12/31/07

12/31/08

12/31/09

12/31/10

12/31/11

Company / Index 
CoStar Group, Inc. 
S&P 500 Index 
S&P 500 Application Software Index 

12/31/06 

100 
100 
100 

12/31/07 
88.22 
105.49 
111.07 

12/31/08 
61.50 
66.46 
60.72 

12/31/09 
77.99 
84.05 
97.04 

12/31/10 
107.47 
96.71 
130.42 

12/31/11 
124.59 
98.76 
114.62 

30 

 
 
 
 
 
 
 
 
 
 
Item 6.  

Selected Consolidated Financial and Operating Data 

Selected Consolidated Financial and Operating Data 
(in thousands, except per share data and other operating data) 

The following table provides selected consolidated financial and other operating data for the five years ended 
December 31, 2011. The consolidated statement of operations data shown below for each of the three years ended 
December 31, 2009, 2010, and 2011 and the consolidated balance sheet data as of December 31, 2010 and 2011 are 
derived from audited consolidated financial statements that are included in this report. The consolidated statement of 
operations data for each of the years ended December 31, 2007 and 2008 and the consolidated balance sheet data as 
of December 31, 2007, 2008, and 2009 shown below are derived from audited consolidated financial statements for 
those years that are not included in this report. 

Year Ended December 31, 

Consolidated Statement of Operations Data: 
Revenues ..................................................................  $ 
Cost of revenues ......................................................   
Gross margin ............................................................   
Operating expenses ..................................................   
Income from operations ...........................................   
Interest and other income, net ..................................   
Income before income taxes ....................................   
Income tax expense, net ...........................................   
Net income  ..............................................................  $ 

Net income per share 

Net income per share 

 basic ...................................   $   
 diluted ................................  $   

2009 

2008 

2007 
192,805    $  212,428    $  209,659 
73,714 
135,945 
104,110 
31,835 
1,253 
33,088 
14,395 
18,693 
0.95 

73,408     
139,020     
99,232     
39,788     
4,914     
44,702     
20,079     
24,623    $ 
1.27    $  

76,704   
116,101   
98,249   
17,852   
8,045   
25,897   
9,946   
15,951    $ 
0.84    $  

2010 
226,260 
83,599 
142,661 
119,886 
22,775 
735 
23,510 
10,221 
13,289 
0.65 

2011 

  $  251,738 
88,167 
163,571 
141,800 
21,771 
798 
22,569 
7,913 
14,656 
0.63 

  $ 
  $ 

  $ 

  $ 
  $   

0.82    $  

1.26    $  

0.94 

  $   

0.64 

  $ 

0.62 

Weighted average shares outstanding 

Weighted average shares outstanding 

 basic ..........   
 diluted .......   

19,044   

19,404   

19,372     

19,550     

19,780 

19,925 

20,330 

20,707 

23,131 

23,527 

Consolidated Balance Sheet Data: 
Cash, cash equivalents, short-term and long-term 

investments ..........................................................  $ 

Working capital .......................................................   
Total assets ..............................................................   
Total liabilities .........................................................   
Stockholders’ equity ................................................   

2007 

2008 

2009 

2010 

2011 

As of December 31, 

187,426   $ 
167,441  
321,843  
40,038  
281,805  

224,590    $ 
183,347     
334,384     
30,963     
303,421     

255,698 
203,660 
404,579 
45,573 
359,006 

  $ 

239,316    $ 
188,279   
439,648   
58,146   
381,502   

573,379 
521,401 
771,035 
111,858 
659,177  

Other Operating Data: 
Number of subscription client sites ..........................   
Millions of properties in database ............................   

2007 
14,467   
2.7   

2008 
15,920     
3.2     

2009 
16,020 
3.6 

2010 
16,781 
      4.0 

2011 

18,183 
4.2 

As of December 31, 

31 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 7. 

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

The  following  Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations 
contains  ―forward-looking  statements,‖  including  statements  about  our  beliefs  and  expectations.  There  are  many 
risks  and  uncertainties  that  could  cause  actual  results  to  differ  materially  from  those  discussed  in  the  forward-
looking statements. Potential factors that could cause actual results to differ materially from those discussed in any 
forward-looking statements include, but are not limited to, those stated above in Item 1A. under the headings ―Risk 
 Cautionary Statement Concerning Forward-Looking Statements‖ and ― Risk Factors,‖ as well as those 
Factors 
described from time to time in our filings with the Securities and Exchange Commission.  

All forward-looking statements are based on information available to us on the date of this filing and we assume 
no obligation to update such statements. The following discussion should be read in conjunction with our Quarterly 
Reports  on  Form  10-Q,  Current  Reports  on  Form  8-K  and  other  filings  with  the  Securities  and  Exchange 
Commission and the consolidated financial statements and related notes in this Annual Report on Form 10-K.  

Overview   

CoStar  Group,  Inc.  (the  ―Company‖  or  ―CoStar‖)  is  the  number  one  provider  of  information  and  analytic 
services  to  the  commercial  real  estate  industry  in  the  U.S.  and  the  U.K.  based  on  the  fact  that  we  offer  the  most 
comprehensive  commercial  real  estate  database  available,  have  the  largest  research  department  in  the  industry, 
provide more information and analytic services than any of our competitors and believe we generate more revenues 
than any of our competitors. We have created a standardized information and analytic platform where members of 
the commercial real estate and related business community can continuously interact and facilitate transactions by 
efficiently exchanging accurate and standardized commercial real estate information. Our integrated suite of online 
service  offerings  includes  information  about  space  available  for  lease,  comparable  sales  information,  tenant 
information,  information  about  properties  for  sale,  internet  marketing  services,  analytical  capabilities,  information 
for clients' websites, information about industry professionals and their business relationships, data integration, and 
industry  news. We also provide market research and analysis  for commercial real estate investors and lenders  via 
our  PPR  service  offerings,  portfolio  and  debt  management  and  reporting  capabilities  through  our  Resolve 
Technology service offerings, and real estate management solutions, including lease administration and abstraction 
services,  through  our  Virtual  Premise service  offerings. Our service offerings span all commercial property types, 
including office, industrial, retail, land, mixed-use, hospitality and multifamily. 

Expansion and Development 

We  expect  to  develop  and  distribute  new  services,  expand  existing  services  within  our  current  platform 
(including  internationally),  and  expand  and  develop  our  sales  and  marketing  organization.    These  initiatives  are 
expected to include continued development of CoStarGo, enhancements to our core information services, including 
our suite of online services, and development of new services for our brokerage clients.  Most recently, on August 
15,  2011,  we  launched  CoStarGo  in  the  U.S.;  CoStarGo  is  an  iPad  application  that  integrates  our  comprehensive 
property, tenant and comparable sales information in our  suite of online products  –  CoStar Property Professional, 
CoStar Tenant and CoStar COMPS Professional.  We supported the launch with an extensive marketing campaign 
during the third quarter of 2011, including a 34-city national launch tour to drive early adoption of the service.  We 
incurred expenses of approximately $3.4 million during the third quarter of 2011 in connection with the launch of 
CoStarGo.  We expect to continue to incur additional expenses associated with the marketing and sale of CoStarGo.  

We also intend to continue to expand the coverage of our service offerings within our International segment and 
to integrate our International operations more fully with those in the U.S.   We have gained operational efficiencies 
as a result of consolidating a majority of our U.K. research operations in one location in Glasgow and combining the 
majority of our remaining U.K. operations in one central location in London.  We intend to introduce a consistent 
international platform of service  offerings  in the  upcoming future.  As part of our integration efforts, in 2007, we 
introduced  the  ―CoStar  Group‖  as  the  brand  encompassing  our  international  operations,  and  in  early  2010  we 
launched Showcase, our Internet marketing service that provides commercial real estate professionals high quality 
internet  lead  generation,  in  the  U.K.    We  expect  to  introduce  CoStar  Property  Professional®,  CoStar  COMPS 
Professional®,  CoStar  Tenant®  and  CoStarGo™,  our  iPad  application,  in  the  U.K.  in  the  upcoming  future.  
Additionally, we plan to upgrade back end research operations, fulfillment and CRM systems in the U.K. to support 
these new U.K. services.  In order to implement these services in the U.K., we have incurred, and expect to incur 
increased development costs.   We believe that our continued investments  in U.S. products, internationalization of 

32 

 
 
 
 
 
 
 
 
our products and integration efforts have created a platform for long-term growth, which we intend to continue to 
develop, invest in and expand. 

Any future product development or expansion of services could reduce our profitability and increase our capital 
expenditures.  Therefore,  while  we  expect  current  service  offerings  to  remain  profitable,  driving  overall  earnings 
throughout 2012 and providing substantial cash flow for our business, it is possible that any new investments could 
cause us to generate losses and negative cash flow from operations in the future. 

Our goal is to provide additional tools that make our research and analytics even more valuable to subscribers.  
For example, we are focusing on further integration and development of the services offered by the companies we 
have  most  recently  acquired,  PPR,  Resolve  Technology  and  Virtual  Premise.    We  have  launched  an  initiative  to 
develop  a  lease  discounted  cash  flow  (―LDCF‖)  forecasting  and  valuation  solution  that  effectively  integrates  the 
combined  capabilities  of  CoStar’s  market  and  property  information  and  PPR’s  analytics  and  forecasting  expertise 
with  Resolve  Technology’s  and  Virtual  Premise’s  commercial  real  estate  investment  and  management  software 
expertise.  In order to implement this initiative, we have incurred, and expect to continue to incur additional costs.  
While our investments in PPR, Resolve Technology and Virtual Premise have resulted and may continue to result in 
an increase in expenses, our revenues have also increased as a result of these acquisitions, and we have experienced 
increased cross-selling opportunities among CoStar and the acquired companies. 

On April 27, 2011, we signed a definitive agreement to acquire LoopNet. Pursuant to the merger agreement, as 
a result of the merger (a) each outstanding share of LoopNet common stock will be converted into a unit consisting 
of  (i) $16.50  in  cash,  without  interest  and  (ii) 0.03702 shares  of  CoStar  common  stock,  and  (b)  each  outstanding 
share of LoopNet Series A Convertible Preferred Stock, unless previously converted into LoopNet common stock, 
will be converted into a  unit  consisting of (i) the product of 148.80952 multiplied by the Cash  Consideration and 
(ii) the  product  of  148.80952  multiplied  by  the  Stock  Consideration,  representing  a  total  equity  value  of 
approximately  $860.0  million  and  an  enterprise  value  of  $762.0  million  as  of  April  27,  2011.    The  holders  of 
LoopNet’s  Series  A  Convertible  Preferred  Stock  delivered  contingent  conversion  notices  to  LoopNet  pursuant  to 
which  such  shares  will  be  converted  into  LoopNet  common  stock  immediately  prior  to,  and  contingent  upon,  the 
completion  of  the  merger.    The  boards  of  directors  of  CoStar  and  LoopNet  have  unanimously  approved  the 
transaction,  and  the  holders  of  a  majority  of  the  outstanding  shares  of  LoopNet’s  common  stock  and  Series  A 
Preferred Stock, voting together as  a single class on an as-converted basis, have approved adoption of the merger 
agreement on July 11, 2011.   

We intend to fund the cash portion of the consideration payable to LoopNet stockholders in the merger through 
a combination of cash on hand, including the net proceeds of approximately $247.9 million from an equity offering 
we completed in June 2011 and the proceeds of  a $175.0 million term loan facility available to us under a Credit 
Agreement,  dated February 16, 2012, by and among  CoStar, as borrower, CoStar  Realty Information, Inc., as co-
borrower, the lenders from time to time party thereto and JPMorgan Bank, as administrative agent.  The obligation 
of the lenders to  make the loans  under the  Credit  Agreement is  subject to the simultaneous closing of the  merger 
with LoopNet and the satisfaction of certain other conditions precedent.  The proceeds of a $50 million revolving 
credit  facility  also  available  to  us  under  the  Credit  Agreement  may  be  used,  on  the  closing  date  of  the  LoopNet 
merger,  to  pay  for  transaction  costs  related  to  the  merger  and,  thereafter,  for  working  capital  and  other  general 
corporate purposes.   In addition, we received a commitment letter from J.P. Morgan Bank on April 27, 2011 for a 
fully committed term loan of $415.0 million and a $50.0 million revolving credit facility, of which $37.5 million is 
committed.  This commitment letter remains outstanding and available, subject to customary conditions, to fund the 
LoopNet acquisition and our ongoing working capital needs following the closing.  However, we do not currently 
anticipate utilizing this commitment.   

The LoopNet transaction is subject to customary closing conditions,  including expiration or termination of the 
waiting period under the HSR Act.  As previously disclosed in the proxy statement/prospectus dated June 6, 2011, 
both CoStar and LoopNet filed notification and report forms with the Department of Justice and the FTC pursuant to 
the  HSR  Act,  on  May 31,  2011.  As  a  result,  the  waiting  period  under  the  HSR  Act  with  respect  to  the  proposed 
merger  between  CoStar  and  LoopNet  (the  ―merger‖)  was  scheduled  to  expire  on  June 30,  2011.  As  previously 
reported  in  a  Current  Report  on  Form  8-K,  on  June  30,  2011,  CoStar  and  LoopNet  each  received  a  request  for 
additional  information  (commonly  referred  to  as  a  ―second  request‖)  from  the  FTC  with  respect  to  the  proposed 
merger.  At the FTC’s request, CoStar and LoopNet  subsequently agreed to extend the waiting period imposed by 
the HSR Act from 30 to 60 days after the date of substantial compliance with the second request unless that period is 
extended voluntarily by the parties or terminated sooner by the FTC.  On November 4, 2011, each of the Company 

33 

 
 
 
  
 
 
and LoopNet certified as to its substantial compliance with the second request.  As previously disclosed on January 
3, 2012, CoStar and LoopNet voluntarily agreed to further extend the waiting period imposed by the HSR Act on a 
45-day rolling basis to allow them to engage in discussions with the FTC to determine whether there is a possible 
basis for, and to discuss the possible terms of, a mutually acceptable consent order that would allow the merger to 
close.  On January 31, 2012, CoStar and LoopNet mutually agreed to extend the date after which either party may 
individually elect to terminate the merger agreement from January 31, 2012 to April 30, 2012.  While there can be 
no assurance that agreement on the terms of a possible consent order can be reached in a timely manner or at all, the 
Company believes the discussions with the FTC Staff are currently proceeding constructively and the Company is 
hopeful  that  they  will  in  the  near  term  result  in  an  agreement  with  the  FTC  Staff  on  the  terms  of  such  a  consent 
order, subject to FTC approval.    

In certain circumstances set forth in the LoopNet merger agreement, if the merger is not consummated or the 
agreement  is  terminated,  LoopNet  may  be  obligated  to  pay  us  a  termination  fee  of  $25.8  million.    Similarly,  in 
certain  circumstances  set  forth  in  the  merger  agreement,  if  the  merger  is  not  consummated  or  the  agreement  is 
terminated, we may be obligated to pay LoopNet a termination fee of $51.6 million. 

In  light  of  our  agreement  to  acquire  LoopNet,  we  are  currently  evaluating  how  best  to  integrate  the  two 
businesses.  We expect that while we await final antitrust approval of the transaction we will continue to assess and 
finalize any plans for additional investments in our business for the  foreseeable future.  At this time, we expect to 
continue to develop and distribute new services within our current platform.   We expect to continue our efforts to 
integrate the combined capabilities of CoStar’s market and property information and PPR’s analytics and forecasting 
expertise with Resolve Technology’s real estate investment software expertise.  We also plan to continue efforts to 
integrate Virtual Premise’s real estate management solutions with CoStar’s business.   

While we expect current service offerings to remain profitable, driving overall earnings for 2012 and providing 
substantial cash flow for our business, our proposed merger with LoopNet and the subsequent integration of our two 
businesses  could  reduce  our  profitability,  cause  us  to  generate  losses  and  adversely  affect  our  financial  position.  
Further, our credit facilities contain restrictive covenants that will restrict our operations and use of our cash flow if 
the LoopNet acquisition is completed. 

Market Conditions 

There continue to be clear signs of improving conditions in the commercial real estate industry, including strong 
leasing  activity  and  positive  net  absorption  of  office  space.   However,  the  extent  and  duration  of  continued 
improvement of the economy and the commercial real estate industry is unknown.  Continuing risks related to lower 
than expected job growth, spiking energy costs and uncertainty over U.S. and global economic issues may impede 
the ability and willingness of clients to purchase services from us or result in reductions of services purchased.    

in 

the  U.S.  and 

In some cases, the business operations of some of our clients continue to be negatively affected by challenging 
economic  conditions 
in  business  consolidations  and, 
the  world,  resulting  at 
in some circumstances, business failure.  If cancellations, reductions of services and failures to pay increase, and we 
are unable to offset the resulting decrease in revenue by increasing sales to new or existing customers, our revenues 
may  decline  or  grow  at  reduced  rates.  We  compete  against  many  other  commercial  real  estate  information  and 
analytic service providers for business.  If customers choose to cancel our services for cost-cutting or other reasons, 
our revenue could decline. 

times 

Financial Matters 

Our  financial  reporting  currency  is  the  U.S. dollar.  Changes  in  exchange  rates  can  significantly  affect  our 
reported results and consolidated trends.  We believe that our increasing diversification beyond the  U.S. economy 
through our international businesses benefits our stockholders over the long term. We also believe it is important to 
evaluate  our  operating  results  before  and  after  the  effect  of  currency  changes,  as  it  may  provide  a  more  accurate 
comparison  of  our  results  of  operations  over  historical  periods.  Currency  exchange  rate  volatility  may  continue, 
which may impact (either positively or negatively) our reported financial results and consolidated trends and period-
to-period comparisons of our consolidated operations.  

We currently issue stock options and/or restricted stock to our officers, directors and employees, and as a result 
we record additional compensation expense in our consolidated statements of operations. We plan to continue the 

34 

 
 
 
 
 
 
 
 
 
 
use of stock-based compensation for our officers, directors and employees, which may include, among other things, 
restricted  stock,  restricted  stock  units  or  stock  option  grants  that  typically  will  require  us  to  record  additional 
compensation expense in our consolidated statements of operations and reduce our net income. 

Property Developments 

On  February  5,  2010,  we  took  advantage  of  favorable  market  conditions  and  purchased  an  office  building  in 
downtown  Washington,  DC  for  $41.25  million  for  use  as  our  new  headquarters  and  have  since  relocated  to  this 
location (the ―DC Office Building‖).  The lease for our previous headquarters in Bethesda, MD expired on October 
15,  2010;  therefore,  we  incurred  overlapping  occupancy  costs  through  the  end  of  the  Bethesda  lease  term  as  we 
transitioned  to  our  new  headquarters.    We  were  able  to  create  value  through  our  occupancy  of  the  DC  Office 
Building and on February 18, 2011 sold the building for aggregate consideration of $101.0 million, $15.0 million of 
which was designated to fund additional build-out and planned improvements at the building.  Approximately $12.5 
million of the $15.0 million additional build-out is recorded as a leasehold improvement in property and equipment.  
As part of the sale, we entered into a long-term lease with the buyer to lease back approximately 88% of the office 
space, where our corporate headquarters is expected to remain.   

During the third quarter of 2011, we incurred approximately $1.5 million of restructuring costs associated with 
the consolidation of our White Marsh, Maryland office with our Columbia, Maryland and Washington, DC offices.   

Subscription-Based Services 

Our  subscription-based  information  services,  consisting  primarily  of  CoStar  Property  Professional,  CoStar 
Tenant,  CoStar  COMPS  Professional,  and  FOCUS  services  currently  generate  approximately  94%  of  our  total 
revenues.  CoStar  Property  Professional,  CoStar  Tenant,  and  CoStar  COMPS  Professional  are  generally  sold  as  a 
suite of similar services and comprise our primary service offering in our U.S. operating segment.  FOCUS is our 
primary service offering in our International operating segment. The majority of our contracts for our subscription-
based  information  services  typically  have  a  minimum  term  of  one  year  and  renew  automatically.  Upon  renewal, 
many of the subscription contract rates may change in accordance with contract provisions or as a result of contract 
renegotiations. To encourage clients to use our services regularly, we generally charge a fixed monthly amount for 
our  subscription-based  information  services  rather  than  fees  based  on  actual  system  usage.  Contract  rates  are 
generally  based on the number of sites, number of users,  organization size, the client’s business focus, geography 
and the  number of services to  which a client subscribes.  Our subscription clients  generally pay contract  fees on a 
monthly basis, but in some cases may pay us on a quarterly or annual basis. We recognize this revenue on a straight-
line  basis  over  the  life  of  the  contract.  Annual  and  quarterly  advance  payments  result  in  deferred  revenue, 
substantially reducing the working capital requirements generated by accounts receivable. 

For  the  twelve  months  ended  December  31,  2011  and  2010,  our  contract  renewal  rate  for  subscription-based 
services was approximately 93% and 90%, respectively, and therefore our cancellation rate was approximately  7% 
and 10%, respectively, for the same periods of time.  Our contract renewal rate is a quantitative measurement that is 
typically closely correlated with our revenue results.  As a result, management also believes that the rate may be a 
reliable  indicator  of  short-term  and  long-term  performance.   Our  trailing  twelve-month  contract  renewal  rate  may 
decline  if  negative  economic  conditions  lead  to  greater  business  failures  and/or  consolidations  among  our  clients, 
further reductions in customer spending, or decreases in our customer base. 

Application of Critical Accounting Policies and Estimates 

The  preparation  of  financial  statements  and  related  disclosures  in  conformity  with  U.S.  generally  accepted 
accounting principles (―GAAP‖) requires  management to make estimates and assumptions that affect the reported 
amounts  of  assets  and  liabilities,  the  disclosure  of  contingent  assets  and  liabilities  at  the  date  of  the  financial 
statements  and  revenues  and  expenses  during  the  period  reported.  The  following  accounting  policies  involve  a 
―critical  accounting  estimate‖  because  they  are  particularly  dependent  on  estimates  and  assumptions  made  by 
management about matters that are highly uncertain at the time the accounting estimates are made. In addition, while 
we  have used our best estimates  based on facts and circumstances available to us at the time, different  acceptable 
assumptions would yield different results. Changes in the accounting estimates are reasonably likely to occur from 
period  to  period,  which  may  have  a  material  impact  on  the  presentation  of  our  financial  condition  and  results  of 
operations. We review these estimates and assumptions periodically and reflect the effects of revisions in the period 
that they are determined to be necessary. 

35 

 
 
 
 
 
 
 
 
 
Fair Value of Auction Rate Securities 

Fair value is defined as the price that would be received in the sale of an asset or paid to transfer a liability in an 
orderly transaction between market participants.  There is a three-tier fair value hierarchy, which categorizes assets 
and liabilities by the inputs used in measuring fair value.  These tiers include: Level 1, defined as observable inputs 
such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are 
either  directly  or  indirectly  observable;  and  Level  3,  defined  as  unobservable  inputs  for  which  little  or  no  market 
data exists, therefore requiring an entity to develop its own assumptions.  Our Level 3 assets consist of auction rate 
securities (―ARS‖), whose underlying assets are primarily student loan securities supported by guarantees from the 
Federal Family Education Loan Program (―FFELP‖) of the U.S. Department of Education. 

Our ARS  investments are  not  currently  trading  and  therefore  do  not  currently  have  a  readily  determinable 
market value.  The estimated fair value of the ARS no longer approximates par value.  We have used a discounted 
cash  flow  model  to  determine  the  estimated  fair  value  of  our  investment  in  ARS  as  of  December  31,  2011.  The 
assumptions  used  in  preparing  the  discounted  cash  flow  model  include  estimates  for  interest  rates,  credit  spreads, 
timing  and  amount  of  cash  flows,  liquidity  risk  premiums,  expected  holding  periods  and  default  risk  of  the 
ARS.  Based on this assessment of fair value, as of  December 31, 2011, we determined there was a decline in the 
fair  value  of  our  ARS  investments  of  approximately  $2.7  million.  The  decline  was  deemed  to  be  a  temporary 
impairment and recorded as an unrealized loss in accumulated other comprehensive loss in stockholders’ equity.  If 
the issuers of these ARS are unable to successfully close future auctions and/or their credit ratings deteriorate, we 
may be required to record additional unrealized losses in accumulated other comprehensive loss or an other-than-
temporary impairment charge to earnings on these investments, which would reduce our profitability and adversely 
affect our financial position. 

We have not made any material changes in the accounting methodology used to determine the fair value of the 
ARS.  We do not expect any material changes in the near term to the underlying assumptions used to determine the 
unobservable inputs used to calculate the fair value of the ARS as of December 31, 2011.  However, if changes in 
these  assumptions  occur,  and,  should  those  changes  be  significant,  we  may  be  exposed  to  additional  unrealized 
losses in accumulated other comprehensive loss or an other-than-temporary impairment charge to earnings on these 
investments.  

Fair Value of Deferred Consideration 

We had no Level 3 liabilities as of December 31, 2011.  As of December 31, 2010, we held Level 3 liabilities 
for  deferred  consideration  related  to  the  October  19,  2009  acquisition  of  Resolve  Technology.  The  deferred 
consideration totaled $3.2 million as of December 31, 2010 and included (i) a potential deferred cash payment two 
years  after  closing  based  on  the  incremental  growth  of  Resolve  Technology’s  revenue,  and  (ii)  other  potential 
deferred cash payments for successful completion of operational and sales milestones during the period from closing 
through October 31, 2013, which period may be extended by the parties to a date no later than December 31, 2014.  
On June 24, 2011, we made a payment to the seller of Resolve Technology of $500,000 as a result of the successful 
completion of one of the operational milestones.  On September 8, 2011, we entered into an agreement to settle all 
remaining potential deferred cash payments due under the original agreement.  Under the terms of the agreement, we 
made a payment of $1.6 million on  September 14, 2011 to settle the entire obligation. We reversed the remaining 
$1.2 million originally recorded as deferred consideration by reducing general and administrative expense during the 
three months ended September 30, 2011.  

Prior to the settlement on September 8, 2011, we used a discounted cash flow model to determine the estimated 
fair value of our Level 3 liabilities.  The significant assumptions used in preparing the discounted cash flow model 
included  the  discount  rate,  estimates  for  future  incremental  revenue  growth  and  probabilities  for  completion  of 
operational and sales milestones.  

Stock-Based Compensation 

We account for equity instruments issued in exchange for employee services using a fair-value based method 
and  we  recognize  the  fair  value  of  such  equity  instruments  as  an  expense  in  the  consolidated  statements  of 
operations.  We estimated the fair value of each option granted on the date of grant using the Black-Scholes option-
pricing  model,  which  requires  us  to  estimate  the  dividend  yield,  expected  volatility,  risk-free  interest  rate  and 

36 

 
 
 
 
 
 
 
 
 
 
expected  life  of  the  stock  option.    These  assumptions  and  the  estimation  of  expected  forfeitures  are  based  on 
multiple  factors,  including  historical  employee  behavior  patterns  of  exercising  options  and  post-employment 
termination  behavior,  expected  future  employee  option  exercise  patterns,  and  the  historical  volatility  of  the 
Company’s stock price. 

We do not expect any material changes in the near term to the underlying assumptions used to calculate stock-
based compensation expense for the twelve months ended December 31, 2011.  However, if significant changes in 
these assumptions occur, they could have a material impact on our stock-based compensation expense. 

Valuation of Long-Lived and Intangible Assets and Goodwill 

We  assess  the  impairment  of  long-lived  assets,  identifiable  intangibles  and  goodwill  whenever  events  or 
changes in circumstances indicate that the carrying value may not be recoverable. Judgments made by management 
relate to the expected useful lives of long-lived assets and our ability to realize any undiscounted cash flows of the 
carrying  amounts  of  such  assets.    The  accuracy  of  these  judgments  may  be  adversely  affected  by  several  factors, 
including the factors listed below: 

•  Significant underperformance relative to historical or projected future operating results;  
•  Significant changes in the manner of our use of the acquired assets or the strategy for our overall business; 
•  Significant negative industry or economic trends; or  
•  Significant decline in our market capitalization relative to net book value for a sustained period.  

When we determine that the carrying value of long-lived and identifiable intangible assets may not be recovered 

based upon the existence of one or more of the above indicators, we test for impairment. 

Goodwill  and  identifiable  intangible  assets  that  are  not  subject  to  amortization  are  tested  annually  for 
impairment  by  each  reporting  unit  on  October  1  of  each  year  and  are  also  tested  for  impairment  more  frequently 
based upon the existence of  one or  more of the above indicators.  We consider our operating segments, U.S.  and 
International, as our reporting units under FASB authoritative guidance for consideration of potential impairment of 
goodwill.  

The  goodwill  impairment  test  is  a  two-step  process.    The  first  step  is  to  determine  the  fair  value  of  each 
reporting unit. We estimate the fair value of each reporting unit based on a projected discounted cash flow model 
that  includes  significant  assumptions  and  estimates  including  our  future  financial  performance  and  a  weighted 
average cost of capital.  The fair value of each reporting  unit is compared to the carrying amount of the reporting 
unit.  If  the  carrying  value  of  the  reporting  unit  exceeds  the  fair  value,  then  the  second  step  of  the  process  is 
performed to measure the impairment loss.  We measure impairment loss based on a projected discounted cash flow 
method  using  a  discount  rate  determined  by  our  management  to  be  commensurate  with  the  risk  in  our  current 
business model.  As of October 1, 2011, the date of our most recent impairment analysis, the estimated fair value of 
each  of  our  reporting  units  substantially  exceeded  the  carrying  value  of  our  reporting  units.  There  have  been  no 
events or changes in circumstances since the date of our impairment analysis on October 1, 2011 that would indicate 
that the carrying value of either reporting unit may not be recoverable. 

Accounting for Income Taxes 

As  part  of  the  process  of  preparing  our  consolidated  financial  statements,  we  are  required  to  estimate  our 
income taxes in each of the jurisdictions in which we operate. This process requires us to estimate our actual current 
tax  exposure  and  assess  the  temporary  differences  resulting  from  differing  treatment  of  items,  such  as  deferred 
revenue  or  deductibility  of  certain  intangible  assets,  for  tax  and  accounting  purposes.  These  differences  result  in 
deferred  tax  assets  and  liabilities,  which  are  included  within  our  consolidated  balance  sheets.  We  must  then  also 
assess the likelihood that our deferred tax assets will be recovered from future taxable income, and, to the extent we 
believe that it is more-likely-than not that some portion or all of our deferred tax assets will not be realized, we must 
establish  a  valuation  allowance.    To  the  extent  we  establish  a  valuation  allowance  or  change  the  allowance  in  a 
period,  we  must  reflect  the  corresponding  increase  or  decrease  within  the  tax  provision  in  the  consolidated 
statements of operations.  

37 

 
 
 
 
 
 
 
 
 
 
 
 
 
Non-GAAP Financial Measures 

We prepare and publicly release quarterly unaudited financial statements prepared in accordance with GAAP. 
We also disclose and discuss certain non-GAAP financial measures in our public releases, investor conference calls 
and filings with the Securities and Exchange Commission. The non-GAAP financial measures that we may disclose 
include  EBITDA,  adjusted  EBITDA,  non-GAAP  net  income  and  non-GAAP  net  income  per  diluted  share.  
EBITDA is our net income (loss) before interest, income taxes, depreciation and amortization. We typically disclose 
EBITDA on a consolidated and an operating segment basis in our earnings releases, investor conference calls and 
filings  with  the  Securities  and  Exchange  Commission.  Adjusted  EBITDA  is  different  from  EBITDA  because  we 
further  adjust  EBITDA  for  stock-based  compensation  expense,  acquisition-related  costs,  restructuring  costs, 
headquarters acquisition and transition related costs and settlements and impairments incurred outside our ordinary 
course of business.  Non-GAAP net income and non-GAAP net income per diluted share are similarly adjusted for 
stock-based  compensation  expense,  acquisition-related  costs,  restructuring  costs,  headquarters  acquisition  and 
transition related costs, settlement and impairment costs incurred outside our ordinary course of business as well as 
purchase amortization and other related costs.  We may disclose adjusted EBITDA, non-GAAP net income and non-
GAAP net income per diluted share on a consolidated basis in our earnings releases, investor  conference calls and 
filings with the Securities and Exchange  Commission. The non-GAAP financial measures that we use may not be 
comparable to similarly titled measures reported by other companies. Also, in the future, we may disclose different 
non-GAAP financial measures in order to help our investors more meaningfully evaluate and compare our results of 
operations to our previously reported results of operations or to those of other companies in our industry. 

We view EBITDA, adjusted EBITDA, non-GAAP net income and non-GAAP net income per diluted share as 
operating performance measures and as such we believe that the most directly comparable GAAP financial measure 
is net income (loss). In calculating EBITDA, adjusted EBITDA, non-GAAP net income and non-GAAP net income 
per  diluted  share,  we  exclude  from  net  income  (loss)  the  financial  items  that  we  believe  should  be  separately 
identified to provide additional analysis of the financial components of the day-to-day operation of our business. We 
have  outlined  below  the  type  and  scope  of  these  exclusions  and  the  material  limitations  on  the  use  of  these  non-
GAAP financial measures as a result of these exclusions. EBITDA, adjusted EBITDA, non-GAAP net income and 
non-GAAP net income per  diluted  share are not  measurements of financial performance under GAAP and should 
not  be  considered  as  a  measure  of  liquidity,  as  an  alternative  to  net  income  (loss)  or  as  an  indicator  of  any  other 
measure of performance derived in accordance with GAAP. Investors and potential investors in our securities should 
not rely on EBITDA, adjusted EBITDA, non-GAAP net income and non-GAAP net income per diluted share as a 
substitute for any GAAP financial measure, including net income (loss). In addition, we urge investors and potential 
investors  in  our  securities  to  carefully  review  the  GAAP  financial  information  included  as  part  of  our  Quarterly 
Reports on Form 10-Q that are filed with the Securities and Exchange Commission, as well as our quarterly earnings 
releases,  and  compare  the  GAAP  financial  information  with  our  EBITDA,  adjusted  EBITDA,  non-GAAP  net 
income and non-GAAP net income per diluted share. 

EBITDA, adjusted EBITDA, non-GAAP net income and non-GAAP net income per diluted share may be used 
by management to internally measure our operating and management performance and may be used by investors as 
supplemental  financial  measures  to  evaluate  the  performance  of  our  business.    We  believe  that  these  non-GAAP 
measures, when viewed with our GAAP results and the accompanying reconciliation, provide additional information 
that is useful to understand the factors and trends affecting our business. We have spent more than 24 years building 
our  database  of  commercial  real  estate  information  and  expanding  our  markets  and  services  partially  through 
acquisitions  of  complementary  businesses.  Due  to  the  expansion  of  our  information  and  analytic  services,  which 
included acquisitions, our net income (loss) has included significant charges for purchase amortization, depreciation 
and  other  amortization,  acquisition  costs  and  restructuring  costs.  Adjusted  EBITDA,  non-GAAP  net  income  and 
non-GAAP  net  income  per  diluted  share  exclude  these  charges  and  provide  meaningful  information  about  the 
operating  performance  of  our  business,  apart  from  charges  for  purchase  amortization,  depreciation  and  other 
amortization,  acquisition  costs,  restructuring  costs  and  settlement  and  impairment  costs  incurred  outside  our 
ordinary  course  of  business.  We  believe  the  disclosure  of  non-GAAP  measures  can  help  investors  meaningfully 
evaluate  and  compare  our  performance  from  quarter  to  quarter  and  from  year  to  year.  We  also  believe  the  non-
GAAP measures we disclose are measures of our ongoing operating performance because the isolation of non-cash 
charges,  such  as  amortization  and  depreciation,  and  other  items,  such  as  interest,  income  taxes,  stock-based 
compensation  expenses,  acquisition  costs,  headquarters  acquisition  and  transition  related  costs,  restructuring  costs 
and  settlement  and  impairment  costs  incurred  outside  our  ordinary  course  of  business,  provides  additional 
information  about  our  cost  structure,  and,  over  time,  helps  track  our  operating  progress.  In  addition,  investors, 
securities analysts and others have regularly relied on EBITDA and may rely on adjusted EBITDA, non-GAAP net 

38 

 
 
 
 
income  or  non-GAAP  net  income  per  diluted  share  to  provide  a  financial  measure  by  which  to  compare  our 
operating performance against that of other companies in our industry.   

Set forth below are descriptions of the  financial  items that  have been excluded from our net income (loss) to 
calculate EBITDA and the material limitations associated with using this non-GAAP financial measure as compared 
to net income (loss): 

Purchase amortization in cost of revenues may be useful for investors to consider because it represents the 
use  of  our  acquired  database  technology,  which  is  one  of  the  sources  of  information  for  our  database  of 
commercial  real  estate  information.  We  do  not  believe  these  charges  necessarily  reflect  the  current  and 
ongoing cash charges related to our operating cost structure. 

Purchase amortization in operating expenses may be useful for investors to consider because it represents 
the  estimated  attrition  of  our  acquired  customer  base  and  the  diminishing  value  of  any  acquired  trade 
names. We do not believe these charges necessarily reflect the current and ongoing cash charges related to 
our operating cost structure. 

Depreciation  and  other  amortization  may  be  useful  for  investors  to  consider  because  they  generally 
represent the wear and tear on our property and equipment used in our operations. We do not believe these 
charges necessarily reflect the current and ongoing cash charges related to our operating cost structure. 

The amount of net interest income we generate may be useful for investors to consider and may result in 
current cash inflows or outflows. However, we do not consider the amount of net interest income to be a 
representative component of the day-to-day operating performance of our business. 

Income  tax  expense  (benefit) may  be  useful  for  investors  to  consider  because  it  generally  represents  the 
taxes which may be payable for the period and the change in deferred income taxes during the period and 
may reduce the amount of funds otherwise available for use in our business.  However, we do not consider 
the amount of income tax expense (benefit) to be a representative component of the day-to-day operating 
performance of our business.   

Set forth below are descriptions of the  financial  items that  have been excluded from our net income (loss) to 
calculate adjusted EBITDA and the material limitations associated with using this non-GAAP financial measure as 
compared to net income (loss): 

Purchase amortization in cost of revenues, purchase amortization in operating expenses, depreciation and 
other  amortization,  interest  income,  net,  and  income  tax  expense  (benefit)  as  previously  described  above 
with respect to the calculation of EBITDA.   

Stock-based compensation expense may be useful for investors to consider because it represents a portion 
of  the  compensation  of  our  employees  and  executives.    Determining  the  fair  value  of  the  stock-based 
instruments involves a high degree of judgment and estimation and the expenses recorded may bear little 
resemblance to the actual value realized upon the future exercise or termination of the related stock-based 
awards.  Therefore,  we  believe  it  is  useful  to  exclude  stock-based  compensation  in  order  to  better 
understand the long-term performance of our core business.   

The  amount  of  acquisition-related  costs  incurred  may  be  useful  for  investors  to  consider  because  they 
generally represent professional service fees and direct expenses related to the acquisition.  Because we do 
not acquire businesses on a predictable cycle we do not consider the amount of acquisition-related costs to 
be a representative component of the day-to-day operating performance of our business.   

The amount of restructuring costs incurred may be useful for investors to consider because they generally 
represent costs incurred in connection with a change in the makeup of our properties or personnel.  We do 
not consider the amount of restructuring related costs to be a representative component of the day-to-day 
operating performance of our business.   

39 

 
 
 
 
 
 
 
 
 
 
 
 
 
The amount of headquarters acquisition and transition related costs incurred may be useful for investors to 
consider because they generally represent the overlapping rent and building carrying costs, legal costs and 
other related costs incurred to relocate our headquarters. We do not believe these charges necessarily reflect 
the current and ongoing charges related to our operating cost structure. 

The amount of material settlement and impairment costs incurred outside of our ordinary course of business 
may be useful for investors to consider because they generally represent gains or losses from the settlement 
of  litigation  matters.  We  do  not  believe  these  charges  necessarily  reflect  the  current  and  ongoing  cash 
charges related to our operating cost structure. 

The financial items that have been excluded from our net income (loss) to calculate non-GAAP net income and 
non-GAAP net income per diluted share are stock-based compensation, acquisition-related costs, restructuring costs, 
headquarter  acquisition  and  transition  related  costs  and  settlement  and  impairment  costs  incurred  outside  our 
ordinary course of business.  These items are discussed above with respect to the calculation of adjusted EBITDA 
along  with  the  material  limitations  associated  with  using  this  non-GAAP  financial  measure  as  compared  to  net 
income (loss).  We subtract an assumed provision for income taxes to calculate non-GAAP net income.  We assume 
a 40% tax rate in order to approximate our long-term effective corporate tax rate. 

Non-GAAP  net  income  per  diluted  share  is  a  non-GAAP  financial  measure  that  represents  non-GAAP  net 
income  divided  by  the  number  of  diluted  shares  outstanding  for  the  period  used  in  the  calculation  of  GAAP  net 
income per diluted share. 

Management  compensates  for  the  above-described  limitations  of  using  non-GAAP  measures  by  using  a  non-
GAAP  measure  only  to  supplement  our  GAAP  results  and  to  provide  additional  information  that  is  useful  to 
understand the factors and trends affecting our business. 

The following table shows our EBITDA reconciled to our net income and our  net cash flows from operating, 

investing and financing activities for the indicated periods (in thousands): 

Year Ended December 31, 

2009 
Net income ........................................................................................   $  18,693 
2,389 
Purchase amortization in cost of revenues ........................................    
3,412 
Purchase amortization in operating expenses ...................................    
8,875 
Depreciation and other amortization.................................................    
Interest income, net...........................................................................    
(1,253) 
Income tax expense, net ....................................................................     14,395 
EBITDA ...........................................................................................   $  46,511 

2010 

2011 

  $  13,289 
1,471 
2,305 
9,873 
(735) 
  10,221 
  $  36,424 

  $  14,656 
1,353 
2,237 
9,262 
(798) 
7,913 
  $  34,623 

Net cash flows provided by (used in) 

Operating activities .......................................................................   $  38,445 
4,532 
Investing activities ........................................................................   $ 
2,172 
Financing activities .......................................................................   $ 

  $  39,269 
  $  (40,504) 
2,042 
  $ 

  $  25,685 
  $  58,366 
  $  254,780 

40 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Results of Operations 

The  following  table  provides  our  selected  consolidated  results  of  operations  for  the  indicated  periods  (in 

thousands of dollars and as a percentage of total revenue): 

Revenues.................................................  $  209,659 
Cost of revenues .....................................     73,714 
Gross margin ..........................................     135,945 
Operating expenses: 

Selling and marketing .........................     42,508 
Software development .........................     13,942 
General and administrative .................     44,248 
3,412 
Purchase amortization .........................    
Total operating expenses ........................     104,110 
Income from operations ..........................     31,835 
Interest and other income, net .................    
1,253 
Income before income taxes ...................     33,088 
Income tax expense, net ..........................     14,395 
Net income  .............................................   $  18,693 

2009 

Year Ended December 31, 
2010 

2011 

  100.0  %    $  226,260 
  83,599 
  35.2 
  142,661 
  64.8 

  100.0  %   $  251,738 
  88,167 
  36.9 
  163,571 
  63.1 

  100.0  % 
  35.0 
  65.0 

  20.3   
6.6   
  21.1   
1.6   
  49.7   
  15.2   
0.6   
  15.8   
6.9 
8.9  % 

  52,455 
  17,350 
       47,776 
2,305 
  119,886 
  22,775 
735 
  23,510 
  10,221 
  $  13,289 

  61,164 
  23.2 
  20,037 
7.7 
           58,362 
  21.1 
2,237 
1.0 
  141,800 
  53.0 
  21,771 
  10.1 
798 
0.3 
  22,569 
  10.4 
7,913 
4.5 
5.9  %   $  14,656 

  24.3 
8.0 
  23.2 
0.9 
  56.4 
8.6 
0.3 
8.9 
3.1 
5.8  % 

Comparison of Year Ended December 31, 2011 and Year Ended December 31, 2010  

Revenues. Revenues increased to $251.7 million in 2011, from $226.3 million in 2010. The increase in revenues 
of approximately $25.4 million is primarily attributable to further penetration of our subscription-based information 
services and successful cross-selling of our services to our customers in existing markets, combined with continued 
high  renewal  rates.  Our  subscription-based  information  services,  consisting  primarily  of  CoStar  Property 
Professional,  CoStar  Tenant,  CoStar  COMPS  Professional  and  FOCUS,  currently  generate  approximately  94%  of 
our total revenues.  

Gross  Margin.  Gross  margin  increased  to  $163.6  million  in  2011,  from  $142.7  million  in  2010.    The  gross 
margin percentage increased to 65.0% in 2011, from 63.1% in 2010.  The increase in the gross margin amount and 
percentage  was  principally  due  to  a  $25.4  million  increase  in  revenue  partially  offset  by  an  increase  in  cost  of 
revenues.  Cost of revenues increased to $88.2 million in 2011, from $83.6 million in 2010.  The increase in cost of 
revenues was principally due to an increase in research personnel costs.  

Selling  and  Marketing  Expenses.  Selling  and  marketing  expenses  increased  to  $61.2  million  in  2011,  from 
$52.5  million  in  2010,  and  increased  as  a  percentage  of  revenues  to  24.3%  in  2011,  from  23.2%  in  2010.  The 
increase in the amount and percentage of selling and marketing expenses was primarily due to an increase in sales 
personnel  costs  of  approximately  $4.9  million  and  the  marketing  effort  related  to  the  launch  of  CoStarGo  of 
approximately $3.4 million.    

Software  Development  Expenses.  Software  development  expenses  increased  to  $20.0  million  in  2011,  from 
$17.4 million in 2010, and increased as a percentage of revenues to 8.0% in 2011, from 7.7% in 2010.  The increase 
in the amount and percentage of software development expense  was primarily due to  increased personnel costs to 
support new development efforts.   

General and Administrative Expenses. General and administrative expenses increased to $58.4 million in 2011, 
from $47.8 million in 2010, and increased as a percentage of revenues to 23.2% in 2011, from 21.1% in 2010. The 
increase in the amount and percentage of general and administrative expenses was principally due to the incurrence 
of approximately $14.2 million in acquisition-related costs in connection with the pending LoopNet acquisition, and 
approximately $1.5 million in lease restructuring charges related to the consolidation of our White Marsh, Maryland 
office.  These increases are partially offset by the deferred consideration adjustment of approximately $1.2 million 
in September 2011 related to the October 19, 2009 acquisition of Resolve Technology.  Additionally, during  2010 

41 

 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
 
   
 
 
 
 
 
 
   
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
we incurred expenses that did not recur in 2011, including the $2.0 million accrual of our litigation with Nokia U.K. 
Limited  in  June  2010,  approximately  $800,000  accrued  in  anticipation  of  the  settlement  of  the  litigation  in  the 
United States District Court for the Southern District of California in June 2010, as well as the lease restructuring 
charges related to the consolidation of our Boston, Massachusetts office of approximately $1.3 million in September 
2010.  

Purchase  Amortization.  Purchase  amortization  remained  relatively  constant  at  approximately  $2.2  million  in 

2011, from $2.3 million in 2010. 

Interest  and  Other  Income,  Net.  Interest  and  other  income,  net  remained  relatively  constant  at  approximately 

$800,000 in 2011, compared to approximately $700,000 in 2010. 

Income  Tax  Expense,  Net.  Income  tax  expense,  net  decreased  to  $7.9  million  in  2011,  from  $10.2  million  in 
2010. This decrease was primarily due to tax benefits resulting from the move of our headquarters to Washington, 
DC. 

Comparison of Business Segment Results for Year Ended December 31, 2011 and Year Ended December 31, 
2010 

We manage our business geographically in two operating segments, with our primary areas of measurement and 
decision-making  being  the  U.S.  and  International,  which  includes  the  U.K.  and  France.  Management  relies  on  an 
internal  management  reporting  process  that  provides  revenue  and  operating  segment  EBITDA,  which  is  our  net 
income before interest, income taxes, depreciation and amortization. Management believes that  operating segment 
EBITDA is an appropriate measure for evaluating the operational performance of our operating segments. EBITDA 
is  used  by  management  to  internally  measure  our  operating  and  management  performance  and  to  evaluate  the 
performance of our business. However, this measure should be considered in addition to, not as a substitute for or 
superior to, income from operations or other measures of financial performance prepared in accordance with GAAP.  

Segment  Revenues.  CoStar  Property  Professional,  CoStar  Tenant,  and  CoStar  COMPS  Professional  are 
generally sold as a suite of similar services and comprise our primary service offering in our U.S. operating segment. 
U.S. revenues increased to $233.4 million from $208.5 million for the years ended December 31,  2011 and 2010, 
respectively.  This  increase  in  U.S.  revenue  was  primarily  due  to  further  penetration  of  our  subscription-based 
information  services,  and  successful  cross-selling  of  our  services  to  our  customers  in  existing  markets,  combined 
with continued high renewal rates.  FOCUS is our primary service offering in our International operating segment.  
International  revenues  increased  to $18.4  million  from  $17.8  million  for  the  years  ended  December  31,  2011  and 
2010,  respectively.    This  increase  was  primarily  due  to  foreign  currency  fluctuations.    Intersegment  revenue 
remained relatively constant at $1.1 million for the year ended December 31, 2011, compared to $1.3 million for the 
year  ended  December  31,  2010.  Intersegment  revenue  is  attributable  to  services  performed  for  the  Company’s 
wholly  owned  subsidiary,  PPR,  by  Property  and  Portfolio  Research  Ltd.,  a  wholly  owned  subsidiary  of 
PPR.  Intersegment revenue is recorded at an amount the Company believes approximates fair value.   Intersegment 
revenue is eliminated from total revenues. 

Segment EBITDA. U.S. EBITDA decreased to $38.1 million from $39.6 million for the years ended December 
31, 2011 and 2010, respectively. The decrease in U.S. EBITDA was due primarily to approximately $14.2 million in 
acquisition-related  costs  for  the  year  ended  December  31,  2011  as  a  result  of  the  pending  LoopNet  acquisition, 
approximately $1.5 million in lease restructuring charges related to the consolidation of our White Marsh, Maryland 
office, approximately $3.4 million due to the marketing effort related to the launch of CoStarGo as well as increased 
personnel  costs  of  approximately  $11.0  million.    These  decreases  in  U.S.  EBITDA  are  partially  offset  by  an 
approximate  $24.9  million  increase  in  revenues  for  the  year  ended  December  31,  2011  from  the  year  ended 
December  31,  2010  and  the  deferred  consideration  adjustment  of  approximately  $1.2  million  in  September  2011 
related to the October 19, 2009 acquisition of Resolve Technology.  Additionally, during 2010 we incurred expenses 
that  did  not  recur  in  2011,  including  approximately  $800,000  accrued  in  anticipation  of  the  settlement  of  the 
litigation in the United States District Court for the Southern District of California in June 2010 as well as the lease 
restructuring charges related to the consolidation of our Boston, Massachusetts office of approximately $1.3 million 
in September 2010.  International EBITDA decreased to a higher loss of $3.5 million for the year ended December 
31,  2011  from  a  $3.2  million  loss  for  the  year  ended  December  31,  2010.  This  higher  loss  was  primarily  due  to 
increased personnel costs of approximately $1.5 million and other expenses of approximately $800,000 for the year 
ended  December  31,  2011,  partially  offset  by  approximately  $2.0  million  connection  with  the  settlement  of  our 

42 

 
 
 
 
 
 
 
 
litigation with Nokia U.K. Limited in 2010 that did not recur in 2011.  International EBITDA includes a corporate 
allocation of approximately $800,000 and $400,000 for the years ended December 31, 2011 and 2010, respectively. 
The  corporate  allocation  represents  costs  incurred  for  U.S.  employees  involved  in  international  management  and 
expansion activities. 

Comparison of Year Ended December 31, 2010 and Year Ended December 31, 2009 

Revenues. Revenues increased to $226.3 million in 2010, from $209.7 million in 2009. The increase in revenues 
of approximately $16.6 million is primarily due to additional revenue from our July 2009 acquisition of PPR. Our 
subscription-based  information  services  consist  primarily  of  CoStar  Property  Professional,  CoStar  Tenant,  CoStar 
COMPS  Professional  and  FOCUS.  As  of  December  31,  2010,  our  subscription-based  information  services 
represented more than 94% of our total revenues.  

Gross Margin. Gross margin increased to $142.7 million in 2010, from $135.9 million in 2009. The increase in 
the amount of gross margin was principally due to a $16.6 million increase in revenue partially offset by an increase 
in cost of revenues.  The gross margin percentage decreased to 63.1% in 2010, from 64.8% in 2009.  The decrease in 
the  percentage  of  gross  margin  was  principally  due  to  an  increase  in  the  cost  of  revenues.    Cost  of  revenues 
increased to $83.6 million in 2010, from $73.7 million in 2009.  The increase in cost of revenues was principally due 
to additional cost of revenues of approximately $7.4 million included as a result of our July 2009 acquisition of PPR 
and our October 2009 acquisition of Resolve Technology.  

Selling  and  Marketing  Expenses.  Selling  and  marketing  expenses  increased  to  $52.5  million  in  2010,  from 
$42.5  million  in  2009,  and  increased  as  a  percentage  of  revenues  to  23.2%  in  2010,  from  20.3%  in  2009.  The 
increase  in  the  amount  and  percentage  of  selling  and  marketing  expenses  was  primarily  due  to  increased  costs  of 
approximately  $6.1  million  due  to  increased  sales  personnel  costs,  as  well  as  additional  selling  and  marketing 
expenses of approximately $1.7 million included as a result of our July 2009 acquisition of PPR and our October 
2009 acquisition of Resolve Technology.  

Software  Development  Expenses.  Software  development  expenses  increased  to  $17.4  million  in  2010,  from 
$13.9 million in 2009, and increased as a percentage of revenues to 7.7% in 2010, from 6.6% in 2009.  The increase 
in  the  amount  and  percentage  of  software  development  expense  was  primarily  due  to  additional  software 
development expenses included as a result of our July 2009 acquisition of PPR and our October 2009 acquisition of 
Resolve Technology.  

General and Administrative Expenses. General and administrative expenses increased to $47.8 million in 2010, 
from  $44.2  million  in  2009,  and  remained  relatively  constant  as  a  percentage  of  revenues  at  21.1%  in  2010  and 
2009.  The  increase  in  the  amount  of  general  and  administrative  expenses  was  principally  due  to  $2.8  million 
recorded  for  the  settlement  of  two  litigation  matters  in  June  2010,  the  2010  lease  restructuring  charge  of 
approximately  $1.3  million,  and  additional  general  and  administrative  expense  of  approximately  $2.0  million 
included as a result of our July 2009 acquisition of PPR and our October 2009 acquisition of Resolve Technology, 
partially offset by a decrease in bad debt expense of approximately $3.0 million. 

Purchase  Amortization.  Purchase  amortization  decreased  to  $2.3  million  in  2010,  from  $3.4  million  in  2009, 
and  decreased  as  a  percentage  of  revenues  to  1.0%  in  2010,  from  1.6%  in  2009.    The  decrease  in  purchase 
amortization expense is due to the completion of amortization for certain identifiable intangible assets in 2010. 

Interest and Other Income, Net.  Interest and other income, net decreased to approximately $700,000 in 2010, 

from $1.3 million in 2009, primarily due to lower short-term investment balances. 

Income Tax Expense, Net.  Income tax expense, net decreased to $10.2 million in 2010, from $14.4 million in 

2009. This decrease was primarily due to lower income before income taxes. 

Comparison of Business Segment Results for Year Ended December 31, 2010 and Year Ended December 31, 
2009 

We manage our business geographically in two operating segments, with our primary areas of measurement and 
decision-making  being  the  U.S.  and  International,  which  includes  the  U.K.  and  France.  Management  relies  on  an 
internal  management  reporting  process  that  provides  revenue  and  operating  segment  EBITDA,  which  is  our  net 

43 

 
 
 
 
 
 
 
 
 
 
 
 
income before interest, income taxes, depreciation and amortization. Management believes that operating segment 
EBITDA is an appropriate measure for evaluating the operational performance of our operating segments. EBITDA 
is  used  by  management  to  internally  measure  our  operating  and  management  performance  and  to  evaluate  the 
performance of our business. However, this measure should be considered in addition to, not as a substitute for or 
superior to, income from operations or other measures of financial performance prepared in accordance with GAAP.  

Segment  Revenues.  CoStar  Property  Professional,  CoStar  Tenant,  and  CoStar  COMPS  Professional  are 
generally sold as a suite of similar services and comprise our primary service offering in our U.S. operating segment. 
U.S. revenues increased to $208.5  million from $191.6 million for the  years ended December 31, 2010 and 2009, 
respectively.  This  increase  in  U.S.  revenue  was  primarily  due  to  additional  revenues  as  a  result  of  our  July  2009 
acquisition of PPR.  FOCUS is our primary service offering in our  International operating segment.   International 
revenues decreased approximately $300,000 primarily due  to foreign currency fluctuations, offset by intersegment 
revenues of approximately $1.3 million attributable to services performed by Property and Portfolio Research Ltd. 
for  PPR.    PPR  and  Property  and  Portfolio  Research  Ltd.  were  acquired  in  July  2009.    Intersegment  revenues  are 
eliminated from total revenues. 

Segment EBITDA. U.S. EBITDA decreased to $39.6 million from $47.7 million for the years ended December 
31, 2010 and 2009, respectively. The decrease in U.S. EBITDA was due primarily to additional personnel cost of 
approximately $8.1 million, increased legal settlement charges of approximately $800,000, and a lease restructuring 
charge  of  approximately  $1.3 million  related  to  the  consolidation  of  our  three  facilities  located  in  Boston, 
Massachusetts,  partially  offset  by  a  decrease  in  bad  debt  expense  of  approximately  $2.2  million.  International 
EBITDA increased to a loss of $3.2 million for the year ended December 31, 2010 from a $1.2 million loss for the 
year  ended  December  31,  2009.  This  increased  loss  was  primarily  due  to  approximately  $2.0  million  paid  in 
connection  with  the  settlement  of  our  litigation  with  Nokia  U.K.  Limited.    International  EBITDA  includes  a 
corporate  allocation  of  approximately  $400,000  and  $500,000  for  the  years  ended  December  31,  2010  and  2009, 
respectively.  The  corporate  allocation  represents  costs  incurred  for  U.S.  employees  involved  in  international 
management and expansion activities. 

Consolidated Quarterly Results of Operations 

The  following  tables  summarize  our  consolidated  results  of  operations  on  a  quarterly  basis  for  the  indicated 

periods (in thousands, except per share amounts, and as a percentage of total revenues): 

  Mar. 31   

Revenues .........................   $  55,093 
  21,200 
Cost of revenues ..............  
  33,893 
Gross margin ...................  
  28,791 
Operating expenses .........  
Income from operations...  
5,102 
Interest and other income, 
net ...............................  

238 

Jun. 30 
  $  55,838 
  20,360 
  35,478 
  30,987 
4,491 

2010 

Sep. 30 
  $  57,144 
  20,762 
  36,382 
  30,247 
6,135 

  Dec. 31 
  $  58,185 
  21,277 
  36,908 
  29,861 
7,047 

  Mar. 31 
  $  59,618 
  22,566 
  37,052 
  29,956 
7,096 

2011 

Jun. 30 

  Sep. 30 
  $  62,127    $  63,829 
  21,175 
  42,654 
  39,650 
3,004 

22,412   
39,715   
35,806   
3,909   

  Dec. 31 
  $  66,164 
  22,014 
  44,150 
  36,388 
7,762 

196 

156 

145 

202 

178   

194 

224 

Income before income 

taxes ............................  
Income tax expense, net ..  
Net income  .....................   $ 
Net income per share 

5,340 
2,451 
2,889 

     4,687 
1,436 
3,251 

  $ 

6,291 
2,909 
  $  3,382 

  $ 

7,192 
3,425 
3,767 

  $ 

7,298 
2,766 
4,532 

basic ............................  

$  

0.14 

$ 

0.16 

$ 

0.17 

$ 

0.18 

$ 

0.22 

Net income per share 

diluted .........................  

$ 

0.14 

$ 

0.16 

$ 

0.16 

$ 

0.18 

$ 

0.22 

3,198 
4,087   
1,450   
887 
2,637    $  2,311 

  $ 

7,986 
2,810 
5,176 

0.12 

$ 

0.09 

$ 

0.21 

0.12 

$ 

0.09 

$ 

0.20 

  $ 

$ 

$ 

44 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
   
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
2010 

2011 

  Mar. 31 
  100.0  %  
38.5 
61.5 
52.3 
9.3 

Jun. 30 
  100.0  %  
36.5   
63.5 
55.5 
8.0 

Sep. 30 
  100.0  %  
36.3 
63.7 
52.9 
10.7 

  Dec. 31 

  Mar. 31 

Jun. 30 

  Sep. 30 

  Dec. 31 

  100.0  %  
36.6 
63.4 
51.3 
12.1 

  100.0  %  
37.9 
62.1 
50.2 
11.9 

100.0  %  
36.1 
63.9     
57.6     
6.3     

  100.0  %  
33.2 
66.8 
62.1 
4.7 

  100.0  % 
33.3 
66.7 
55.0 
11.7 

0.4 

0.4 

0.3 

0.2 

0.3 

0.3       

0.3 

0.3 

9.7 
4.4 
5.2  %  

8.4 
2.6 
5.8  %  

11.0 
5.1 
5.9  %  

12.4 
5.9 
6.5  %  

12.2 
4.6 
7.6  %  

6.6   
2.4     
4.2  %  

5.0 
1.4 
3.6  %   

12.0 
4.2 
7.8  % 

Revenues .........................  
Cost of revenues ..............  
Gross margin ...................  
Operating expenses .........  
Income from operations...  
Interest and other income, 
net ...............................  

Income before income 

taxes ............................  
Income tax expense, net ...    
Net income ......................  

Recent Acquisitions 

Virtual Premise.  On October 25, 2011, we acquired Virtual Premise, a SaaS provider of real estate information 
management solutions. Pursuant to the terms of the acquisition agreement, we paid approximately $17.2 million in 
cash,  approximately  80%  of  which  was  paid  on  the  closing  date  to  the  Virtual  Premise  stockholders  and  the 
remaining  20%  of  which  will  be  held  in  escrow  until  paid  270  days  after  the  closing  date,  subject  to  use  of  such 
funds  to  satisfy  any  post-closing  net  working  capital  adjustments  or  indemnification  claims  made  prior  to  such 
date. The  purchase  price  was  later  reduced  by  approximately  $200,000  after  taking  into  account  post-closing 
purchase price adjustments and this amount is expected to be paid to us from the escrow fund.  

Accounting Treatment. We have applied the acquisition method to account for the Virtual Premise transaction  
which requires that, among other things, assets acquired and liabilities assumed be recorded at their fair values as of 
the acquisition date.  The purchase price was allocated to tradenames, customer base, database technology, goodwill 
and  various  other asset and liability accounts.  The acquired customer base  for the  acquisitions,  which consists of 
one distinct intangible asset and is composed of acquired customer contracts and the related customer relationships, 
is  being  amortized  on  a  125%  declining  balance  method  over  ten  years.  The  identified  intangibles  are  amortized 
over  their  estimated  useful  lives.    Goodwill  for  these  acquisitions  is  not  amortized,  but  is  subject  to  annual 
impairment tests.  The results of operations of  Virtual Premise have been consolidated with those of the Company 
since  the  date  of  the  acquisition  and  are  not  considered  material  to  our  consolidated  financial  statements. 
Accordingly, pro forma financial information has not been presented for the acquisition.  The purchase accounting is 
preliminary and is subject to change. 

Liquidity and Capital Resources 

Our  principal  sources  of  liquidity  are  cash,  cash  equivalents  and  short-term  investments.  Total  cash,  cash 
equivalents and short-term investments were $548.8 million at December 31,  2011 compared to $210.1 million at 
December 31, 2010. The increase in cash, cash equivalents and short-term investments for the year ended December 
31, 2011 was primarily due to  $247.9 million in net proceeds from our equity offering in June 2011 of 4,312,500 
shares of common stock for $60.00 per share.  In addition, in February 2011, we sold the 169,429 square-foot office 
building located at 1331 L Street, NW, in downtown Washington, DC for $101.0 million in cash, $15.0 million of 
which was designated to fund additional build-out and planned improvements at the building.   

Changes  in  cash,  cash  equivalents  and  short-term  investments  are  dependent  upon  changes  in,  among  other 
things, working capital items such as accounts receivable, accounts payable, various accrued expenses and deferred 
revenues, as well as changes in our capital structure due to stock option exercises, purchases and sales of short-term 
investments and similar events. 

Net cash provided by operating activities for the year ended December 31, 2011 was $25.7 million compared to 
$39.3 million for the year ended December 31, 2010. The $13.6 million decrease in net cash provided by operating 
activities  is  primarily  due  to  a  decrease  of  approximately  $21.3  million  from  net  income  plus  non-cash  items 
partially  offset  by  a  $7.7  million  net  increase  in  changes  in  operating  assets  and  liabilities  due  to  differences  in 
timing of collection of receipts and payments of disbursements.    The $21.3 million decrease from net income plus 
non-cash items was primarily related to a decrease in changes in deferred income taxes, net of approximately $18.8 
million.  The change in deferred income taxes, net of $18.8 million is primarily comprised of approximately $13.5 
million related to the tax treatment of the deferred gain on the sale of the building and approximately $5.4 million 

45 

 
 
 
 
 
 
 
 
 
 
  
 
   
  
 
  
 
  
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
  
 
    
    
  
 
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
related to the tax treatment of acquisition related costs associated with the pending LoopNet acquisition.  The $7.7 
million net increase in changes in operating assets and liabilities was primarily related to  an increase in changes in 
income  tax receivable of approximately $9.0 million partially offset by  a decrease  in changes in accounts payable 
and  other  liabilities  of  approximately  $2.7  million.    The  increase  in  changes  in  income  tax  receivable  of 
approximately $9.0 million was due to the 2011 collection of approximately $4.1 million of the $4.9 million income 
tax receivable recorded in 2010, as the tax legislation enacted during the fourth quarter of 2010 allowed us to deduct 
100%  of  qualifying  assets  purchased  after  September  8,  2010.    The  decrease  in  changes  in  accounts  payable  and 
other liabilities of approximately $2.7 million was primarily due to the $2.1 million payment made for the deferred 
consideration  for  the  year  ended  December  31,  2011,  as  a  result  of  the  settlement  of  the  deferred  consideration 
related  to  the  Company’s  October  19,  2009  acquisition  of  Resolve  Technology.    See  Note  5  to  the  consolidated 
financial statements for details of the deferred consideration settlement.     

Net cash provided by investing activities was $58.4 million for the year ended December 31, 2011, compared to 
net  cash  used  in  investing  activities  of  $40.5  million  for  the  year  ended  December  31,  2010.  This  $98.9  million 
increased change in net cash provided by investing activities was primarily due to the sale of our new headquarters 
in downtown Washington,  DC, in  February 2011 as  well  as the  February 2010 purchase of that building partially 
offset by the acquisition of Virtual Premise.  

Net cash provided by financing activities was $254.8 million for the year ended December 31, 2011, compared 
to  $2.0  million  for  the  year  ended  December  31,  2010.    This  $252.8  million  increase  in  net  cash  provided  by 
financing activities  was  primarily due to the equity offering of 4,312,500 shares of common stock  for $60.00 per 
share  completed  in  June  2011.    Net  proceeds  from  the  equity  offering  were  approximately  $247.9  million,  after 
deducting  approximately  $10.4  million  of  underwriting  discounts  and  commissions  and  offering  expenses  of 
approximately $500,000.   

Contractual Obligations. The following table summarizes our principal contractual obligations at December 31, 
2011  and  the  effect  such  obligations  are  expected  to  have  on  our  liquidity  and  cash  flows  in  future  periods  (in 
thousands):  

Operating leases ....................................................    $  124,274    $ 
Purchase obligations(1)  .........................................   
Total contractual principal cash obligations .........    $  132,899    $ 

8,625  

13,420    $ 
5,915   
19,335    $ 

20,206   $ 
2,710  
22,916    $ 

Total 

2012 

  2013-2014    2015-2016   

2017 and 
thereafter  
17,794   $  72,854 

17,794    $  72,854 

(1)Amounts  do  not  include  (i)  contracts  with  terms  of  twelve  months  or  less,  or  (ii)  multi-year  contracts  that  may  be 
terminated  by  a  third  party  or  us.    Amounts  do  not  include  unrecognized  tax  benefits  of  $2.2  million  due  to  uncertainty 
regarding the timing of future cash payments. 

Concurrent with the sale of the 169,429 square-foot office building located at 1331 L Street, NW, in downtown 
Washington, DC, we entered into a lease with GLL L-Street 1331, LLC (―GLL‖) to lease back 149,514 square feet 
of the office space located in the building for use as our corporate headquarters.  The lease will expire May 31, 2025 
(subject to two 5-year renewal options). The initial base rent is $38.50 per square foot of occupied space, escalating 
2.5%  per  year  commencing  June  1,  2011.    Minimum  lease  payments  will  be  approximately  $6.0  million,  $6.1 
million, $6.3 million, $6.4 million and $6.6 million for fiscal years 2012 through 2016, respectively, and a total of 
$62.6 million from 2017 to the end of the lease term. 

Our future capital requirements will depend on many factors, including our operating results, expansion efforts, 

and our level of acquisition activity or other strategic transactions. 

During  2011,  we  incurred  capital  expenditures  of  approximately  $15.0  million.    We  expect  to  make  capital 

expenditures in 2012 of approximately $15.0 million to $20.0 million. 

To date, we have grown in part by acquiring other companies and we may continue to make acquisitions.  Our 
acquisitions may vary in size and could be material to our current operations. We may use cash, stock, debt or other 
means of funding to make these acquisitions.    

46 

 
 
 
  
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
On  October  25,  2011,  we  acquired  Virtual  Premise,  a  SaaS  provider  of  real  estate  information  management 
solutions  located  in  Atlanta,  Georgia.  Pursuant  to  the  terms  of  the  acquisition  agreement,  we  paid  approximately 
$17.2 million in cash, approximately 80% of which was paid on the closing date and the remaining 20% of which 
will be  held in escrow  until paid  270 days after the closing date, subject to  use of such funds to satisfy  any post-
closing net working capital adjustments or indemnification claims made prior to such date.  The purchase price was 
later reduced by approximately $200,000 after taking into account post-closing purchase price adjustments and this 
amount is expected to be paid from the escrow fund to the Company.   

On April 27, 2011, we signed a definitive agreement to acquire LoopNet. Pursuant to the merger agreement, (a) 
each  outstanding  share  of  LoopNet  common  stock  will  be  converted  into  a  unit  consisting  of  (i) $16.50  in  cash, 
without  interest  and  (ii) 0.03702 shares  of  CoStar  common  stock,  and  (b)  each  outstanding  share  of  Series A 
Convertible Preferred Stock, unless previously converted into LoopNet common stock,  will be converted into a unit 
consisting of (i) the product of 148.80952 multiplied by the Cash Consideration and (ii) the product of 148.80952 
multiplied  by  the  Stock  Consideration,  representing  a  total  equity  value  of  approximately  $860.0  million  and  an 
enterprise value of $762.0 million as of April 27, 2011.  The holders of LoopNet’s Series A Convertible Preferred 
Stock  delivered  contingent  conversion  notices  to  LoopNet  pursuant  to  which  such  shares  will  be  converted  into 
LoopNet common stock immediately prior to, and contingent upon, the completion of the merger. 

On April 27, 2011, we received a commitment letter from J.P. Morgan Bank for a fully committed term loan of 
$415.0 million and a $50.0 million revolving credit facility, of  which $37.5 million are committed,  which  will be 
available, subject to customary conditions, to fund the  LoopNet acquisition and the ongoing working capital needs 
of CoStar and its subsidiaries following the transaction.  In June 2011, we completed an equity offering and received 
net  proceeds  of  approximately  $247.9  million.    We  intend  to  use  these  proceeds  to  fund  a  portion  of  the  cash 
consideration  payable  in  connection  with  the  acquisition  of  LoopNet.    On  February  16,  2012,  we  entered  into  a 
Credit Agreement by and among CoStar, as borrower, CoStar Realty Information, Inc., as co-borrower, the lenders 
from time to time party thereto and JPMorgan Bank, as administrative agent.  The Credit  Agreement provides for a 
$175.0 million term loan facility and a $50.0 million revolving credit facility, each with a term of five years.  The 
obligation of the lenders to make the loans under the Credit Agreement is subject to the simultaneous closing of the 
merger with LoopNet and the satisfaction of certain other conditions precedent.  We expect to use the proceeds of 
the  term  loan  facility  on  the  date  on  which  such  conditions  are  satisfied  along  with  net  proceeds  from  the  equity 
offering in June 2011 to pay a portion of the merger consideration and transaction costs related to the merger.  The 
proceeds of the revolving credit facility may be used, on the closing date, to pay for transaction costs related to the 
merger and, thereafter, for working capital and other general corporate purposes of CoStar and its subsidiaries.  The 
original commitment letter from J.P. Morgan Bank received on April 27, 2011 remains outstanding and available, 
subject to customary conditions, to fund the LoopNet acquisition and the ongoing working capital needs of CoStar 
and  its  subsidiaries  following  the  LoopNet  transaction  until  the  earlier  of  funding  of  the  term  loan  facility  into 
escrow pursuant to the Credit Agreement, if applicable,  and the business day after the beginning of the  marketing 
period under the merger agreement.  However, we do not currently anticipate utilizing that original commitment.   

In connection  with obtaining  the facility pursuant to the Credit Agreement,  we expect to incur approximately 
$10.6 million in debt issuance costs, which will be capitalized and amortized as interest expense over the term of the 
Credit Agreement using the effective interest method.  The debt issuance costs will be comprised of approximately 
$9.1 million in underwriting fees and approximately $1.5 million primarily related to legal fees associated with the 
debt issuance.  We have incurred approximately $900,000 in debt issuance costs as of December 31, 2011and have 
paid approximately $300,000.  

The  transaction  is  subject  to  customary  closing  conditions,  including  antitrust  clearance.    We  have  expensed 
approximately  $14.2  million  in  acquisition-related  costs  in  general  and  administrative  expense  for  the  year  ended 
December  31,  2011  as  a  result  of  the  pending  LoopNet  acquisition,  of  which  we  have  paid  approximately  $13.4 
million and expect to pay the remaining balance  in  2012.   We expect to incur approximately  $1.0 million to  $3.0 
million  in  additional  acquisition-related  costs.    The  holders  of  a  majority  of  the  outstanding  shares  of  LoopNet’s 
common stock and Series A Convertible Preferred Stock, voting together as a single class on an as-converted basis, 
approved  the  adoption  of  the  merger  agreement  on  July  11,  2011.  The  transaction  is  not  subject  to  a  financing 
condition.    In  certain  circumstances  set  forth  in  the  merger  agreement,  if  the  merger  is  not  consummated  or  the 
agreement  is  terminated,  LoopNet  may  be  obligated  to  pay  us  a  termination  fee  of  $25.8  million.    Similarly,  in 
certain  circumstances  set  forth  in  the  merger  agreement,  if  the  merger  is  not  consummated  or  the  agreement  is 
terminated, we may be obligated to pay LoopNet a termination fee of $51.6 million.  We are not in a position yet to 
estimate the financial impact the proposed merger will have on our operations.   

47 

 
 
 
 
 
We engaged J.P. Morgan Securities LLC (―J.P. Morgan‖) to act as our financial advisor in connection with the 
acquisition.  We are obligated to pay $4.0 million to J.P. Morgan if the acquisition closes.  Completion of the merger 
remains  subject  to  the  expiration  or  termination  of  the  waiting  period  under  the  HSR  Act  and  other  customary 
closing conditions.  As of December 31, 2011, the parties have not yet reached agreement with the FTC on the terms 
of  a  consent  order  with  the  FTC,  and  there  can  be  no  assurance  that  such  agreement  will  be  reached  in  a  timely 
manner or at all.     

Based  on  current  plans,  we  believe  that  our  available  cash  combined  with  positive  cash  flow  provided  by 

operating activities should be sufficient to fund our operations for at least the next 12 months. 

As of December 31, 2011, we had $27.3 million par value of long-term investments in student loan ARS, which 
failed  to  settle  at  auctions.   The  majority  of  these  investments  are  of  high  credit  quality  with  AAA  credit  ratings 
and are  primarily  securities  supported  by  guarantees  from  the  Federal  Family  Education  Loan  Program 
(―FFELP‖) of  the  U.S.  Department  of  Education.  While  we  continue  to  earn  interest  on  these  investments,  the 
investments are not liquid in the short-term.  In the event we need to immediately access these funds, we may have 
to sell these securities at an amount below par value.  Based on our ability to access our cash, cash equivalents and 
other  short-term  investments  and our  expected  operating  cash  flows, we  do  not  anticipate  having  to  sell  these 
investments below par value in order to operate our business in the foreseeable future. 

Recent Accounting Pronouncements 

In  April  2009,  the  FASB  issued  authoritative  guidance  related  to  the  initial  recognition,  measurement  and 
subsequent accounting for assets and liabilities arising from pre-acquisition contingencies in a business combination. 
It requires that such assets acquired or liabilities assumed be initially recognized at fair value at the acquisition date 
if fair value can be determined during the measurement period. When fair value cannot be determined, companies 
should  typically  account  for  the  acquired  contingencies  using  existing  guidance.  This  guidance  requires  that 
companies expense acquisition and deal-related costs that were previously allowed to be capitalized.  This guidance 
also  requires  that  a  systematic  and  rational  basis  for  subsequently  measuring  and  accounting  for  the  assets  or 
liabilities  be  developed  depending  on  their  nature.  This  guidance  was  effective  for  contingent  assets  or  liabilities 
arising  from  business  combinations  with  an  acquisition  date  on  or  after  January  1,  2009.   The  adoption  of  this 
guidance changes the accounting treatment and disclosure for certain specific items in a business combination with 
an  acquisition  date  subsequent  to  December  31,  2008.    We  adopted  this  guidance  on  January  1,  2009,  and began 
expensing acquisition and deal-related costs in 2009 based on the issued authoritative guidance. 

In April 2009, the FASB issued authoritative guidance for determining whether a market is active or inactive, 
and  whether a transaction is distressed.  This guidance is applicable to all assets and liabilities (financial and non-
financial) and requires enhanced disclosures. We adopted this guidance for our interim period ending June 30, 2009. 
The adoption of this guidance did not have a material impact on our results of operations or financial position, but 
did require additional disclosures in our financial statements. 

In  April  2009,  the  FASB  issued  authoritative  guidance  requiring  disclosures  in  interim  reporting  periods 
concerning  the  fair  value  of  financial  instruments  that  were  previously  only  required  in  the  annual  financial 
statements. We adopted the provisions of this guidance for our interim period ending June 30, 2009. The adoption of 
this  guidance  did  not  have  a  material  impact  on  our  results  of  operations  or  financial  position,  but  did  require 
additional disclosures in our financial statements.  

In April 2009, the FASB issued authoritative guidance that redefines what constitutes an other-than-temporary 
impairment,  defines  credit  and  non-credit  components  of  an  other-than-temporary  impairment,  prescribes  their 
financial  statement  treatment,  and  requires  enhanced  disclosures  relating  to  such  impairments.  We  adopted  this 
guidance for our interim period ending June 30, 2009. The adoption of this guidance did not have a material impact 
on our results of operations or financial position, but did require additional disclosures in our financial statements. 

In May 2009, the FASB issued authoritative guidance which establishes general standards of accounting for and 
disclosure of events that occur after the balance sheet date but before financial statements are issued. This guidance 
was effective for all interim and annual reporting periods ending after June 15, 2009. This guidance has not resulted 
in  significant  changes  in  the  subsequent  events  that  we  report,  either  through  recognition  or  disclosure,  in  our 
financial statements. 

48 

 
 
 
 
 
 
 
 
 
 
In June 2009, the FASB issued authoritative guidance to amend the manner in which entities evaluate whether 
consolidation is required for variable interest entities (VIE).  Previously, variable interest holders were required to 
determine whether they had a controlling financial interest in a VIE based on a quantitative analysis of the expected 
gains  and/or  losses  of  the  entity.  The  new  guidance  requires  an  enterprise  with  a  variable  interest  in  a  VIE  to 
qualitatively assess whether it has a controlling financial interest in the entity, and if so, whether it is the primary 
beneficiary.  This  guidance  also  requires  that  companies  continually  evaluate  VIEs  for  consolidation,  rather  than 
assessing whether consolidation is required based upon the occurrence of triggering events.  This guidance enhances 
disclosures to provide financial statement  users  with  greater transparency about transfers of  financial assets and a 
transferor’s continuing involvement with transferred financial assets.  This guidance is effective for the first annual 
reporting period beginning after November 15, 2009. This guidance did not have a material impact on our results of 
operations, financial position or related disclosures. 

In June 2009, the FASB issued authoritative guidance which replaced the previous hierarchy of U.S. GAAP and 
establishes  the  FASB  Accounting  Standards  Codification  as  the  single  source  of  authoritative  U.S.  GAAP 
recognized  by  the  FASB  to  be  applied  by  nongovernmental  entities.  This  guidance  is  effective  for  financial 
statements  issued  for  interim  and  annual  periods  ending  after  September  15,  2009.  This  guidance  did  not  have  a 
material impact on our results of operations or financial position, but did require changes to our disclosures in our 
financial statements. 

In July 2009, the FASB issued authoritative guidance to improve the consistency with which companies apply 
fair value measurements guidance to liabilities.  This guidance is effective for interim and annual periods beginning 
after  September  30,  2009.  This  guidance  did  not  have  a  material  impact  on  our  results  of  operations,  financial 
position or related disclosures. 

In October 2009, the FASB issued authoritative guidance that amends existing guidance for identifying separate 
deliverables  in  a  revenue-generating  transaction  where  multiple  deliverables  exist,  and  provides  guidance  for 
measuring  and  allocating  revenue  to  one  or  more  units  of  accounting.  In  addition,  the  FASB  issued  authoritative 
guidance  on  arrangements  that  include  software  elements.    Under  this  guidance,  tangible  products  containing 
software components and non-software components that are essential to the functionality of the tangible product will 
no  longer  be  within  the  scope  of  the  software  revenue  recognition  guidance.  This  guidance  is  effective  using  the 
prospective application or the retrospective application for revenue arrangements entered into or materially modified 
in fiscal years beginning on or after June 15, 2010 with earlier application permitted. This guidance did not have a 
material impact on our results of operations or financial position. 

In  January  2010,  the  FASB  issued  authoritative  guidance  that  amends  the  disclosure  requirements  related  to 
recurring  and  nonrecurring  fair  value  measurements.  This  guidance  requires  new  disclosures  on  the  transfers  of 
assets and liabilities between Level 1 (assets and liabilities measured using observable inputs such as quoted prices 
in  active  markets)  and  Level  2  (assets  and  liabilities  measured  using  inputs  other  than  quoted  prices  in  active 
markets  that  are  either  directly  or  indirectly  observable)  of  the  fair  value  measurement  hierarchy,  including  the 
amount  and  reason  of  the  transfers.  Additionally,  this  guidance  requires  a  roll  forward  of  activities  on  purchases, 
sales, issuances, and settlements of the assets and liabilities measured using significant unobservable inputs (Level 3 
fair  value  measurements).  This  guidance  is  effective  for  interim  and  annual  reporting  periods  beginning  after 
December  15,  2009,  with  the  exception  of  the  additional  disclosure  for  Level  3  assets  and  liabilities,  which  is 
effective for fiscal years beginning after December 15, 2010, and for interim periods within those fiscal years. This 
guidance did not have a material impact on our results of operations or financial position, but did require changes to 
our disclosures in our interim and annual financial statements. 

In February 2010, the FASB  issued authoritative  guidance  that amends the disclosure requirements related to 
subsequent events. This guidance includes the definition of a Securities and Exchange Commission filer, removes 
the  definition  of  a  public  entity,  redefines  the  reissuance  disclosure  requirements  and  allows  public  companies  to 
omit the disclosure of the date through which subsequent events have been evaluated.  This guidance is effective for 
financial statements issued for interim and annual periods ending after February 2010. This guidance did not  have a 
material impact on our results of operations or financial position, but did require changes to our disclosures  in our 
financial statements. 

In April 2010, the FASB issued authoritative guidance related to the criteria that should be met for determining 
whether the milestone method of revenue recognition is appropriate.  A vendor can recognize consideration that is 

49 

 
 
 
 
 
 
 
 
 
contingent  upon  achievement  of  a  milestone  in  its  entirety  as  revenue  in  the  period  in  which  the  milestone  is 
achieved if the milestone is: (a) commensurate with either the vendor’s performance to achieve the milestone or the 
enhancement of the value of the item delivered; (b) relates solely to past performance; and (c) is reasonable relative 
to  all  deliverables  and  payment  terms  in  the  arrangement.    This  guidance  is  effective  on  a  prospective  basis  for 
financial statements issued for interim and annual periods ending after June 15, 2010, with early adoption permitted.  
The adoption of this guidance did not have a material impact on our results of operations or financial position. 

In  May  2011,  the  FASB  issued  authoritative  guidance  to  develop  common  requirements  for  measuring  fair 
value  and  for  disclosing  information  about  fair  value  measurements  in  accordance  with  GAAP  and  International 
Financial  Reporting Standards (―IFRS‖).  This guidance clarifies the intent of the existing fair value measurement 
and  disclosure  requirements  and  modifies  principles  and  requirements  for  measuring  fair  value  and  for  disclosing 
information about fair value measurement.  This guidance is effective on a prospective basis for financial statements 
issued  for  interim  and  annual  periods  beginning  after  December  15,  2011.    This  guidance  is  not  expected  to 
materially  impact  our results  of operations or financial  position, but  will require  changes to the disclosures in  our 
interim and annual financial statements. 

In  June  2011,  the  FASB  issued  authoritative  guidance  to  improve  the  comparability,  consistency  and 
transparency of financial reporting and to increase the prominence of items reported in other comprehensive income.  
This  guidance  requires  changes  in  stockholders’  equity  to  be  presented  either  in  a  single  continuous  statement  of 
comprehensive income or in two separate but consecutive statements.  Under the two-statement approach, the first 
statement  should  present  total  net  income  and  its  components  followed  consecutively  by  a  second  statement  that 
should present total other comprehensive income, the components of other comprehensive income and the total of 
comprehensive  income.    This  guidance  is  effective  on  a  retrospective  basis  for  financial  statements  issued  for 
interim and annual periods beginning after December 15, 2011.   This guidance is not expected to  have a  material 
impact on our results of operations or financial position, but will require changes to the consolidated statement of 
stockholders’ equity and the addition of the consolidated statement of comprehensive income. 

In  September  2011,  the  FASB  issued  authoritative  guidance  to  simplify  how  companies  test  goodwill  for 
impairment.    The  guidance  permits  a  company  to  first  assess  qualitative  factors  to  determine  whether  it  is  more 
likely  than  not  that  the  fair  value  of  a  reporting  unit  is  less  than  its  carrying  amount  as  a  basis  for  determining 
whether it is necessary to perform the two-step goodwill impairment test.  This guidance is effective for goodwill 
impairment tests performed for interim and annual periods beginning after December 15, 2011, with early adoption 
permitted.  This guidance is not expected to have a material impact on our results of operations or financial position. 

In  December  2011,  the  FASB  issued  authoritative  guidance  to  defer  the  effective  date  pertaining  to  the 
presentation of reclassification adjustments out of accumulated other comprehensive income previously established 
in the authoritative guidance issued in June 2011.  This guidance also  defers the presentation of the effect of those 
reclassification adjustments on the face of the financial statements where net income is presented, by component of 
net  income,  and  on  the  face  of  the  financial  statements  where  other  comprehensive  income  is  presented,  by 
component  of  other  comprehensive  income.    This  guidance  is  effective  on  a  retrospective  basis  for  financial 
statements issued for interim and annual periods beginning after December 15, 2011.This guidance is not expected 
to  have  a  material  impact  on  our  results  of  operations  or  financial  position,  but  will  require  changes  to  the 
disclosures in our interim and annual financial statements. 

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk  

We provide information and analytic services to the commercial real estate and related business community in 
the U.S., U.K. and France. Our functional currency for our operations in the U.K. and France is the local currency. 
As such, fluctuations in the British Pound and Euro may have an impact on our business, results of operations and 
financial  position.    For  the  year  ended  December  31,  2011,  revenue  denominated  in  foreign  currencies  was 
approximately 7.7% of total revenue.  For the year ended December 31, 2011, our revenue would have decreased by 
approximately $1.9 million if the U.S. dollar exchange rate used strengthened by 10%.  In addition, we have assets 
and liabilities denominated in foreign currencies.  A 10% strengthening of the U.S. dollar exchange rate against all 
currencies with which we have exposure at December 31, 2011 would have resulted in an increase of approximately 
$1.5 million in the carrying amount of net assets. For the year ended December 31,  2011, our revenue would have 
increased by approximately $1.9 million if  the  U.S. dollar exchange rate  used  weakened by 10%. In addition,  we 
have  assets and liabilities denominated in  foreign currencies.  A 10%  weakening of the  U.S. dollar exchange  rate 
against  all  currencies  with  which  we  have  exposure  at  December  31,  2011  would  have  resulted  in  a  decrease  of 

50 

 
 
 
 
 
 
 
 
approximately $1.5  million  in the carrying amount of net assets. We  currently do not use financial instruments to 
hedge  our  exposure  to  exchange  rate  fluctuations  with  respect  to  our  foreign  subsidiaries.  We  may  seek  to  enter 
hedging  transactions  in  the  future  to  reduce  our  exposure  to  exchange  rate  fluctuations,  but  we  may  be  unable  to 
enter into hedging transactions successfully, on acceptable terms or at all.  As of December 31,  2011, accumulated 
other  comprehensive  loss  included  a  loss  from  foreign  currency  translation  adjustments  of  approximately  $5.9 
million. 

We  do  not  have  material  exposure  to  market  risks  associated  with  changes  in  interest  rates  related  to  cash 
equivalent securities held as of December 31, 2011.  As of December 31, 2011, we had $548.8 million of cash, cash 
equivalents  and short-term  investments.    If  there  is  an  increase  or  decrease  in  interest  rates,  there  will  be  a 
corresponding  increase  or  decrease  in  the  amount  of  interest  earned  on  our  cash,  cash  equivalents  and short-term 
investments.  Based on our ability to access our cash, cash equivalents and short-term investments, and our expected 
operating cash flows, we do not believe that increases or decreases in interest rates will impact our ability to operate 
our business in the foreseeable future. 

Included  within  our  long-term  investments  are  investments  in  mostly  AAA-rated  student  loan  ARS.    These 
securities  are  primarily  securities  supported by  guarantees  from  the  FFELP  of  the  U.S.  Department  of  Education.  
As of December 31, 2011, auctions for $27.3 million of our investments in auction rate securities failed.  As a result, 
we may not be able to sell these investments at par value until a future auction on these investments is successful. In 
the  event  we  need to immediately liquidate  these investments,  we  may  have to locate a  buyer outside the auction 
process, who may be unwilling to purchase the investments at par, resulting in a loss.  Based on an assessment of 
fair value of these investments in ARS as of December 31, 2011, we determined that there was a decline in the fair 
value of our ARS investments of approximately $2.7 million, which was deemed to be a temporary impairment and 
recorded as an unrealized loss in accumulated other comprehensive loss in stockholders’ equity.  If the issuers are 
unable to successfully close future auctions and/or their credit ratings deteriorate, we may be required to adjust the 
carrying  value  of  these  investments  as  a  temporary  impairment  and  recognize  a  greater  unrealized  loss  in 
accumulated other comprehensive loss or as an other-than-temporary impairment charge to earnings. Based on our 
ability to access our cash, cash equivalents and short-term investments, and our expected operating cash flows, we 
do not anticipate having to sell these securities below par value in order to operate our business in the foreseeable 
future.  See Notes 4 and 5 to the consolidated financial statements for further discussion. 

We have approximately $112.3 million in intangible assets as of December 31, 2011. As of December 31, 2011, 
we believe our intangible assets  will be recoverable, however, changes in the economy, the business in  which  we 
operate  and  our  own  relative  performance  could  change  the  assumptions  used  to  evaluate  intangible  asset 
recoverability. In the event that we determine that an asset has been impaired, we would recognize an impairment 
charge  equal  to  the  amount  by  which  the  carrying  amount  of  the  assets  exceeds  the  fair  value  of  the  asset.  We 
continue to monitor these assumptions and their effect on the estimated recoverability of our intangible assets. 

Item 8. 

Financial Statements and Supplementary Data 

Financial  Statements  meeting  the  requirements  of  Regulation  S-X  are  set  forth  beginning  at  page  F-1. 
Supplementary data is set forth in ―Management’s Discussion and Analysis of Financial Condition and Results of 
Operations‖ under the caption ―Consolidated Results of Operations.‖ 

Item 9. 

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 

None.  

Item 9A.  Controls and Procedures 

We  maintain  disclosure  controls  and  procedures  that  are  designed  to  ensure  that  information  required  to  be 
disclosed in our reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported, 
within  the  time  periods  specified  in  the  Securities  and  Exchange  Commission’s  rules  and  forms,  and  that  such 
information is accumulated and communicated to our management, including our Chief Executive Officer and Chief 
Financial  Officer,  as  appropriate,  to  allow  for  timely  decisions  regarding  required  disclosure.  In  designing  and 
evaluating  the  disclosure  controls  and  procedures,  management  recognized  that  any  controls  and  procedures,  no 
matter  how  well  designed  and  operated,  can  provide  only  reasonable  assurance  of  achieving  the  desired  control 

51 

 
 
 
 
 
 
 
 
 
 
objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible 
controls and procedures. 

As of December 31, 2011, we carried out an evaluation, under the supervision and with the participation of our 
management,  including  our  Chief  Executive  Officer  and  our  Chief  Financial  Officer,  of  the  effectiveness  of  the 
design and operation of our disclosure controls and procedures. Based on the foregoing, our Chief Executive Officer 
and Chief Financial Officer concluded that our disclosure controls and procedures were effective and were operating 
at the reasonable assurance level. 

Management’s Report on Internal Control over Financial Reporting 

Management of CoStar is responsible for establishing and maintaining adequate internal control over financial 
reporting and for the assessment of the effectiveness of internal control over financial reporting. As defined by the 
Securities  and  Exchange  Commission,  internal  control  over  financial  reporting  is  a  process  designed  by,  or 
supervised by, the Company’s principal executive and principal financial officers, to provide reasonable assurance 
regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements  in  accordance  with 
generally accepted accounting principles.    

The  Company’s internal control over financial  reporting is  supported by  written policies and procedures,  that 
(1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and 
dispositions of the Company’s assets; (2) provide reasonable assurance that transactions are recorded as necessary to 
permit  preparation  of  financial  statements  in  accordance  with  generally  accepted  accounting  principles,  and  that 
receipts and expenditures of the Company are being made only in accordance with authorizations of the Company’s 
management  and  directors;  and  (3) provide  reasonable  assurance  regarding  prevention  or  timely  detection  of 
unauthorized  acquisition,  use  or  disposition  of  the  Company’s  assets  that  could  have  a  material  effect  on  the 
financial statements.  

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect 
misstatements.  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. 

In  connection  with  the  preparation  of  the  Company's  annual  financial  statements,  management  of  the 
Company  has  undertaken  an  assessment  of  the  effectiveness  of  the  Company’s  internal  control  over  financial 
reporting as of December 31, 2011 based on criteria established in Internal Control – Integrated Framework issued 
by  the  Committee  of  Sponsoring  Organizations  of  the  Treadway  Commission  (―the  COSO  Framework‖).  
Management's  assessment  included  an  evaluation  of  the  design  of  the  Company's  internal  control  over  financial 
reporting and testing of the operational effectiveness of the Company's internal control over financial reporting. 

Based  on  this  assessment,  management  did  not  identify  any  material  weakness  in  the  Company's  internal 
control, and management has concluded that the Company's internal control over financial reporting was effective 
as of December 31, 2011. 

Ernst  &  Young  LLP,  the  independent  registered  public  accounting  firm  that  audited  the  Company's  financial 
statements  included  in  this  report,  has  issued  an  attestation  report  on  the  effectiveness  of  internal  control  over 
financial reporting, a copy of which is included in this Annual Report on Form 10-K.  

There have been no changes in our internal control over financial reporting during our most recent fiscal quarter 
that  have  materially  affected,  or  are  reasonably  likely  to  materially  affect,  our  internal  control  over  financial 
reporting.  

Item 9B.  Other Information. 

None. 

52 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 10. 

Directors, Executive Officers and Corporate Governance 

PART III 

The information required by this Item is incorporated by reference to our Proxy Statement for our  2012 annual 

meeting of stockholders. 

Item 11. 

Executive Compensation 

The information required by this Item is incorporated by reference to our Proxy Statement for our 2012 annual 

meeting of stockholders. 

Item 12. 

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

The information required by this Item is incorporated by reference to our Proxy Statement for our  2012 annual 

meeting of stockholders. 

Item 13. 

Certain Relationships and Related Transactions, and Director Independence 

The information required by this Item is incorporated by reference to our Proxy Statement for our  2012 annual 

meeting of stockholders. 

Item 14. 

Principal Accountant Fees and Services 

The information required by this Item is incorporated by reference to our Proxy Statement for our  2012 annual 

meeting of stockholders. 

53 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item 15. 

Exhibits and Financial Statement Schedules 

PART IV 

(a)(1)  The  following  financial  statements  are  filed  as  a  part  of  this  report:  CoStar  Group,  Inc.  Consolidated 

Financial Statements. 

(a)(2) Financial statement schedules:  

Schedule II – Valuation and Qualifying Accounts  

Years Ended December 31, 2009, 2010, and 2011 (in thousands): 

Allowance for doubtful accounts and 
billing adjustments (1) 
Year ended December 31, 2009 ......................................................  
  $ 
Year ended December 31, 2010 ......................................................  
 $ 
 $ 
Year ended December 31, 2011 ......................................................  

3,213 
2,863 
2,415 

  $ 
  $ 
  $ 

Charged to 
Expense 
4,172 
1,471 
1,525 

Balance at 
Beginning  
of Year 

Write-offs, 
Net of 
Recoveries 
4,522 
 $ 
1,919 
 $ 
1,416 
 $ 

Balance at End 
of Year 
2,863 
2,415 
2,524 

 $ 
 $ 
 $ 

(1)  Additions  to  the  allowance  for  doubtful  accounts  are  charged  to  bad  debt  expense.  Additions  to  the 

allowance for billing adjustments are charged against revenues. 

Additional financial statement schedules are omitted because they are not applicable or not required or because 
the required information is incorporated herein by reference or included in the financial statements or related notes 
included elsewhere in this report. 

(a)(3) The documents required to be filed as exhibits to this Report under Item 601 of Regulation S-K are listed 

in the Exhibit Index included elsewhere in this report, which list is incorporated herein by reference. 

54 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
SIGNATURES 

Pursuant to the requirements of Section 13 of the Securities Act of 1934, as amended, the Registrant has duly 
caused  this  report  to  be  signed  on  its  behalf  by  the  undersigned,  thereunto  duly  authorized,  in  the  City  of 
Washington, District of Columbia, on the 23rd day of February 2012. 

COSTAR GROUP, INC. 

By: 

/s/ Andrew C. Florance 
Andrew C. Florance 
President and Chief Executive Officer 

KNOW  ALL  PERSONS  BY  THESE  PRESENTS,  that  each  individual  whose  signature  appears  below 
constitutes and appoints Andrew C. Florance and Brian J. Radecki, and each of them individually, as their true and 
lawful attorneys-in-fact and agents, with full power of substitution, for him and in his name, place and stead, in any 
and all capacities, to sign any and all amendments to this report, and to file the same, with all exhibits thereto and to 
all documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-
in-fact  and  agents,  and  each  of  them,  full  power  and  authority  to  do  and  perform  each  and  every  act  and  thing 
requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could 
do in person, herein by ratifying and confirming all that said attorneys-in-fact and agents or any of them, or his or 
their substitute or substitutes, may lawfully do or cause to be done by virtue hereof. 

Pursuant to the requirements of the Securities Act of 1934, as amended, this report has been signed by the 

following persons on behalf of the registrant and in the capacities and on the dates indicated. 

Signature 

Capacity 

Date 

/s/ Michael R. Klein 
Michael R. Klein 

/s/ Andrew C. Florance 
Andrew C. Florance 

/s/ Brian J. Radecki 
Brian J. Radecki 

/s/ David Bonderman 
David Bonderman 

/s/ Warren H. Haber 
Warren H. Haber 

/s/ Christopher J. Nassetta 
Christopher J. Nassetta 

/s/ Michael J. Glosserman 
Michael J. Glosserman 

/s/ David J. Steinberg 
David J. Steinberg 

  Chairman of the Board 

  February 23, 2012 

  Chief Executive Officer and  
  President and a Director  

(Principal Executive Officer) 

  February 23, 2012 

  Chief Financial Officer  

  February 23, 2012 

(Principal Financial and Accounting Officer) 

  February 23, 2012 

  February 23, 2012 

  February 23, 2012 

  February 23, 2012 

  February 23, 2012 

  Director  

  Director  

  Director 

  Director 

  Director 

55 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
No. 

INDEX TO EXHIBITS 

Description 

2.1 

2.2 

3.1 

  Agreement and Plan of Merger, dated as of April 27, 2011, by and among CoStar Group, Inc., Lonestar 
Acquisition  Sub,  Inc.  and  LoopNet,  Inc.  (Incorporated  by  reference  to  Exhibit  2.1  to  the  Registrant’s 
Current Report on Form 8-K filed with the Commission on April 28, 2011). 

  Amendment No. 1 to the Agreement and Plan of Merger, dated as of May 20, 2011, among LoopNet, 
Inc., CoStar Group, Inc. and Lonestar Acquisition Sub, Inc. (Incorporated by referenced to Exhibit 2.1 to 
Registrant’s Current Report on Form 8-K filed May 23, 2011). 

  Restated  Certificate  of  Incorporation  (Incorporated  by  reference  to  Exhibit  3.1  the  Registration 
Statement on Form S-1 of the Registrant (Reg. No. 333-47953) filed with the Commission on March 13, 
1998 (the ―1998 Form S-1‖)). 

3.2 

  Certificate of Amendment of Restated Certificate of Incorporation (Incorporated by reference to Exhibit 

3.1 to the Registrant’s Report on Form 10-Q for the quarter ended June 30, 1999). 

3.3 

  Amended  and  Restated  By-Laws  (Incorporated  by  reference  to  Exhibit  3.1  to  the  Registrant’s  Current 

Report on Form 8-K filed April 6, 2011. 

4.1 

  Specimen  Common  Stock  Certificate  (Incorporated  by  reference  to  Exhibit  4.1  to  the  Registration 
Statement on Form S-4 of the Registrant (Reg. No. 333-174214) filed with the Commission on June 3, 
2011. 

*10.1 

  CoStar Group, Inc. 1998 Stock Incentive Plan, as amended (Incorporated by reference to Exhibit 10.1 to 

the Registrant’s Report on Form 10-Q for the quarter ended September 30, 2005). 

*10.2 

  CoStar Group, Inc. 2007 Stock Incentive Plan, as amended (Incorporated by reference to Exhibit 99.2 to 

the Registrant’s Current Report on Form 8-K filed June 8, 2011. 

*10.3 

  CoStar  Group,  Inc.  2007  Stock  Incentive  Plan  French  Sub-Plan  (Incorporated  by  reference  to  Exhibit 

10.3 to the Registrant’s Report on Form 10-K for the year ended December 31, 2007). 

*10.4 

*10.5 

*10.6 

*10.7 

*10.8 

*10.9 

  Form  of  Stock  Option  Agreement  between  the  Registrant  and  certain  of  its  officers,  directors  and 
employees (Incorporated by reference to Exhibit 10.8 to the Registrant’s Report on Form 10-K for the 
year ended December 31, 2004). 

  Form  of  Stock  Option  Agreement  between  the  Registrant  and  Andrew  C.  Florance  (Incorporated  by 
reference to Exhibit 10.8.1 to the  Registrant’s Report on  Form 10-K for the  year ended December 31, 
2004). 

  Form  of  Restricted  Stock  Agreement  between  the  Registrant  and  certain  of  its  officers,  directors  and 
employees (Incorporated by reference to Exhibit 10.9 to the Registrant’s Report on Form 10-K for the 
year ended December 31, 2004). 

  Form of 2007 Plan Restricted Stock Grant Agreement between the Registrant and certain of its officers, 
directors and employees (Incorporated by reference to Exhibit 99.1 to the Registrant’s Report on Form 8-
K filed June 22, 2007). 

  Form of 2007 Plan Incentive  Stock Option Grant  Agreement between the  Registrant and certain of its 
officers  and  employees  (Incorporated by  reference  to  Exhibit  10.8  to  the  Registrant’s  Report  on  Form 
10-K for the year ended December 31, 2008). 

  Form  of  2007  Plan  Incentive  Stock  Option  Grant  Agreement  between  the  Registrant  and  Andrew  C. 
Florance (Incorporated by reference to Exhibit 10.9 to the Registrant’s Report on Form 10-K for the year 
ended December 31, 2008). 

*10.10    Form of 2007 Plan Nonqualified Stock Option Grant Agreement between the Registrant and certain of 
its  officers  and  employees  (Incorporated  by  reference  to  Exhibit  10.10  to  the  Registrant’s  Report  on 
Form 10-K for the year ended December 31, 2008). 

*10.11    Form of 2007 Plan  Nonqualified Stock Option Grant Agreement between the Registrant and certain of 
its directors (Incorporated by reference to Exhibit 10.11 to the Registrant’s Report on Form 10-K for the 
year ended December 31, 2008). 

56 

 
 
 
 
 
 
 
 
INDEX TO EXHIBITS 

 (CONTINUED) 

Exhibit 
No. 

Description 

*10.12    Form of 2007 Plan Nonqualified Stock Option Grant Agreement between the Registrant and Andrew C. 
Florance (Incorporated by reference to Exhibit 10.12 to the Registrant’s Report on Form 10-K for the 
year ended December 31, 2008). 

*10.13    Form of 2007 Plan French Sub-Plan Restricted Stock Agreement between the Registrant and certain of 
its employees (Incorporated by reference to Exhibit 10.10 to the Registrant’s Report on Form 10-K for 
the year ended December 31, 2007). 

*10.14    CoStar  Group,  Inc.  2011  Incentive  Bonus  Plan  (Incorporated  by  referenced  to  Exhibit  99.1  to  the 

Registrant’s Current Report on Form 8-K filed June 8, 2011). 

*10.15    CoStar Group, Inc. Employee Stock Purchase Plan, as amended (Incorporated by reference to Exhibit 

10.14 to the Registrant’s Report on Form 10-K for the year ended December 31, 2010). 

*10.16    Employment  Agreement  for  Andrew  C.  Florance  (Incorporated  by  reference  to  Exhibit  10.2  to 
Amendment No. 1 to the Registration Statement on Form S-1 of the Registrant (Reg. No. 333-47953) 
filed with the Commission on April 27, 1998). 

*10.17    First  Amendment  to  Andrew  C.  Florance  Employment  Agreement,  effective  January  1,  2009 
(Incorporated by reference to Exhibit 10.16 to the Registrant’s Report on Form 10-K for the year ended 
December 31, 2008).  

*10.18    Executive Service Contract dated February 16, 2007, between Property Investment Exchange Limited 
and Paul Marples (Incorporated by reference to Exhibit 10.14 to the Registrant’s Report on Form 10-K 
for the year ended December 31, 2007). 

10.19 

10.20 

10.21 

10.22 

10.23 

10.24 

10.25 

  Form  of  Indemnification  Agreement  between  the  Registrant  and  each  of  its  officers  and  directors 
(Incorporated  by  reference  to  Exhibit  10.1  to  the  Registrant’s  Report  on  Form  10-Q  for  the  quarter 
ended March 31, 2004).   

  Agreement  for  Lease  between  CoStar  UK  Limited  and  Wells  Fargo  &  Company,  dated  August  25, 
2009 (Incorporated by reference to Exhibit 10.26 to the Registrant’s Report on Form 10-K for the year 
ended December 31, 2009). 

  Sub-Underlease between CoStar UK Limited and Wells Fargo & Company, dated November 18, 2009 
(Incorporated by reference to Exhibit 10.28 to the Registrant’s Report on Form 10-K for the year ended 
December 31, 2009). 

  Purchase  and  Sale  Agreement  between  1331  L  Street  LLC  and  1331  L  Street  Holdings,  LLC,  dated 
January 20, 2010 (Incorporated by reference to Exhibit 10.1 to the Registrant’s Report on Form 10-Q 
for the quarter ended March 31, 2010). 

  Deed of Office  Lease by and between GLL L-Street 1331, LLC and CoStar Realty Information, Inc., 
dated February 18, 2011, and made effective as of June 1, 2010 (Incorporated by reference to Exhibit 
10.1 to the Registrant’s Report on form 10-Q for the quarter ended March 31, 2011). 

  Purchase and Sale Agreement by and between 1331 L Street Holdings, LLC and GLL L-Street 1331, 
LLC, dated February 2, 2011 (Incorporated by reference to Exhibit 10.1 to the Registrant’s Report on 
form 10-Q for the quarter ended March 31, 2011). 

  Voting  and  Support  Agreement,  dated  as  of  April  27,  2011,  by  and  among  CoStar  Group,  Inc., 
LoopNet, Inc., the holders of Series A convertible preferred stock of LoopNet, Inc., certain executive 
officers and the directors of LoopNet, Inc. (Incorporated by reference to Exhibit 10.1 to the Registrant’s 
Current Report on Form 8-K filed with the Commission on April 28, 2011). 

21.1 
23.1 
31.1 

  Subsidiaries of the Registrant (filed herewith). 
  Consent of Ernst & Young LLP, Independent Registered Public Accounting Firm (filed herewith). 
  Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 

(filed herewith). 

57 

 
 
 
 
 
 
 
INDEX TO EXHIBITS 

 (CONTINUED) 

Exhibit 
No. 
31.2 

  Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 

(filed herewith). 

Description 

32.1 

  Certification  of  Principal  Executive  Officer  pursuant  to  18  U.S.C.  Sec.  1350,  as  adopted  pursuant  to 

Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith). 

32.2 

  Certification  of  Principal  Financial  Officer  pursuant  to  18  U.S.C.  Sec.  1350,  as  adopted  pursuant  to 

Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith). 

**101 

  The  following  materials  from  CoStar  Group,  Inc.’s  Annual  Report  on  Form  10-K  for  the  year  ended 
December,  2011,  formatted  in  XBRL  (eXtensible  Business  Reporting  Language):    (i)  Consolidated 
Statement  of  Operations  for  the  years  ended  December  31,  2009,  2010  and  2011,  respectively;  (ii) 
Consolidated  Balance  Sheets  at  December  31,  2010  and  December 31,  2011,  respectively;  (iii) 
Consolidated  Statements  of  Stockholders’’  Equity  for  the  years  ended  December  31,  2009,  2010  and 
2011, respectively;  (iv)  Consolidated  Statements  of  Cash  Flows  for  years  ended  December  31,  2009, 
2010 and 2011, respectively; (v) Notes to the Consolidated Financial Statements that have been detail 
tagged;  and  (vi)  Schedule  II  –  Valuation  and  Qualifying  Accounts  (submitted  electronically  with  this 
report).  

* Management Contract or Compensatory Plan or Arrangement. 

** Pursuant to Rule 406T of Regulation S-T, the Interactive Data Files on Exhibit 101 hereto are deemed not filed or 
part  of  a  registration  statement  or  prospectus  for  purposes  of  Sections  11  or  12  of  the  Securities  Act  of  1933,  as 
amended, are deemed not filed for purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, 
and otherwise are not subject to liability under those sections. 

58 

 
 
 
 
 
 
COSTAR GROUP, INC. 

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS 

Reports of Independent Registered Public Accounting Firm ..........................................................................   F-2 
Consolidated Statements of Operations for the years ended December 31,  2009, 2010 and 2011 ................   F-4 
Consolidated Balance Sheets as of December 31, 2010 and 2011 ..................................................................   F-5 
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2009, 2010 and 2011 
F-6 
Consolidated Statements of Cash Flows for the years ended December 31, 2009, 2010 and 2011 ................   F-7 
Notes to Consolidated Financial Statements ...................................................................................................   F-8 

F-1 

 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

The Board of Directors and Shareholders of CoStar Group, Inc. 

We have audited the accompanying consolidated balance sheets of CoStar Group, Inc. as of December 31, 2011 
and 2010, and the related consolidated statements of operations, stockholders’ equity, and cash flows for each of the 
three years in the period ended December 31, 2011.  Our audits also included the financial statement schedule listed 
in  the  Index  at  Item  15(a).  These  financial  statements  and  schedule  are  the  responsibility  of  the  Company's 
management.  Our responsibility is to  express an opinion on these financial statements and schedule based on our 
audits. 

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board 
(United  States).  Those  standards  require  that  we  plan  and  perform  the  audit  to  obtain  reasonable  assurance  about 
whether  the  financial  statements  are  free  of  material  misstatement.  An  audit  includes  examining,  on  a  test  basis, 
evidence  supporting  the  amounts  and  disclosures  in  the  financial  statements.  An  audit  also  includes  assessing  the 
accounting  principles  used  and  significant  estimates  made  by  management,  as  well  as  evaluating  the  overall 
financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. 

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated 
financial  position  of  CoStar  Group,  Inc.  at  December  31,  2011  and  2010,  and  the  consolidated  results  of  its 
operations and its cash flows for each of the three years in the period ended December 31, 2011, in conformity with 
U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule, when 
considered in relation to the basic financial statements taken as a whole, presents fairly in all material respects the 
information set forth therein. 

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board 
(United  States), CoStar  Group,  Inc.’s  internal  control  over  financial  reporting  as  of  December  31,  2011,  based on 
criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations 
of the Treadway Commission and our report dated February 23, 2012 expressed an unqualified opinion thereon. 

/s/  Ernst & Young LLP  

McLean, Virginia 

February 23, 2012  

F-2 

 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm  

The Board of Directors and Shareholders of CoStar Group, Inc. 

We have audited CoStar Group, Inc.’s internal control over financial reporting as of December 31, 2011, based 
on  criteria  established  in  Internal  Control—Integrated  Framework  issued  by  the  Committee  of  Sponsoring 
Organizations of the Treadway Commission (the COSO criteria). CoStar Group, Inc.’s management is responsible 
for  maintaining  effective  internal  control  over  financial  reporting,  and  for  its  assessment  of  the  effectiveness  of 
internal  control  over  financial  reporting  included  in  the  accompanying  Management’s  Report  on  Internal  Control 
over  Financial  Reporting.  Our  responsibility  is  to  express  an  opinion  on  the  company’s  internal  control  over 
financial reporting based on our audit. 

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board 
(United  States).  Those  standards  require  that  we  plan  and  perform  the  audit  to  obtain  reasonable  assurance  about 
whether  effective  internal  control  over  financial  reporting  was  maintained  in  all  material  respects.  Our  audit 
included  obtaining  an  understanding  of  internal  control  over  financial  reporting,  assessing  the  risk  that  a  material 
weakness  exists,  testing  and  evaluating  the  design  and  operating  effectiveness  of  internal  control  based  on  the 
assessed risk, and performing such other procedures as we considered necessary in the  circumstances. We believe 
that our audit provides a reasonable basis for our opinion. 

A  company’s  internal  control  over  financial  reporting  is  a  process  designed  to  provide  reasonable  assurance 
regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements  for  external  purposes  in 
accordance  with  generally  accepted  accounting  principles.  A  company’s  internal  control  over  financial  reporting 
includes  those  policies  and  procedures  that  (1)  pertain  to  the  maintenance  of  records  that,  in  reasonable  detail, 
accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable 
assurance  that  transactions  are  recorded  as  necessary  to  permit  preparation  of  financial  statements  in  accordance 
with generally accepted accounting principles, and that receipts and expenditures of the company are being  made 
only  in  accordance  with  authorizations  of  management  and  directors  of  the  company;  and  (3)  provide  reasonable 
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s 
assets that could have a material effect on the financial statements. 

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect 
misstatements.   Also,  projections  of  any  evaluation  of  effectiveness  to  future  periods  are  subject  to  the  risk  that 
controls  may  become  inadequate  because  of  changes  in  conditions,  or  that  the  degree  of  compliance  with  the 
policies or procedures may deteriorate. 

In our opinion, CoStar Group, Inc. maintained, in all material respects, effective internal control over financial 

reporting as of December 31, 2011, based on the COSO criteria. 

We  also  have  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board 
(United  States),  the  consolidated  balance  sheets  as  of  December  31,  2011  and  2010,  and  the  related  consolidated 
statements  of  operations,  stockholders’  equity,  and  cash  flows  for  each  of  the  three  years  in  the  period  ended 
December 31, 2011 of CoStar Group, Inc. and our report dated February 23, 2012 expressed an unqualified opinion 
thereon. 

/s/  Ernst & Young LLP  

McLean, Virginia 

February 23, 2012 

F-3 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC. 
CONSOLIDATED STATEMENTS OF OPERATIONS 
(in thousands, except per share data) 

Year Ended December 31, 

2009 

2010 

2011 

Revenues ...............................................................................................  $  209,659    $  226,260    $ 
Cost of revenues ....................................................................................   
73,714   
Gross margin .........................................................................................    135,945   

83,599   
  142,661   

251,738 
88,167 
163,571 

Operating expenses: 

61,164 
20,037 
58,362 
2,237 
141,800 
21,771 
798 
22,569 
7,913 
14,656 

0.63 
0.62 

23,131 

23,527 

Selling and marketing ........................................................................   
Software development .......................................................................   
General and administrative ................................................................   
Purchase amortization ........................................................................   

Income from operations .........................................................................   
Interest and other income, net ................................................................   
Income before income taxes ..................................................................   
Income tax expense, net.........................................................................   
Net income .............................................................................................  $ 

42,508   
13,942   
44,248   
3,412   
  104,110   
31,835   
1,253   
33,088   
14,395   
18,693    $ 

52,455   
17,350   
47,776   
2,305   
  119,886   
22,775   
735   
23,510   
10,221   
13,289    $ 

Net income per share 

Net income per share 

 basic ...............................................................  $ 
 diluted ............................................................  $ 

0.95    $ 

0.94    $ 

0.65    $ 

0.64    $ 

Weighted average outstanding shares 

Weighted average outstanding shares 

 basic ......................................   
 diluted ...................................   

19,780   

19,925   

20,330   

20,707   

See accompanying notes. 

F-4 

 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
 
   
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC. 
CONSOLIDATED BALANCE SHEETS 
(in thousands except per share data) 

Current assets: 

ASSETS 

Cash and cash equivalents ..........................................................................................  $ 
Short-term investments ..............................................................................................    
Accounts receivable, less allowance for doubtful accounts of approximately 

$2,415 and $2,524 as of December 31, 2010 and 2011, respectively .....................  

Deferred income taxes, net .........................................................................................    
Income tax receivable ................................................................................................    
Prepaid expenses and other current assets ..................................................................    
Total current assets ........................................................................................................    

December 31, 

2010 

2011 

206,405 
3,722 

  $ 

545,280 
3,515 

(cid:3)

13,094   
5,203 
4,940 
5,809 
239,173 

Long-term investments ..................................................................................................    
Deferred income taxes, net ............................................................................................    
Property and equipment, net ..........................................................................................    
Goodwill ........................................................................................................................    
Intangibles and other assets, net ....................................................................................    
Deposits and other assets ...............................................................................................    
Total assets ....................................................................................................................  $ 

29,189 

69,921 
79,602 
18,774 
2,989 
439,648 

  $ 

LIABILITIES AND STOCKHOLDERS’ EQUITY 

Current liabilities: 

Accounts payable .......................................................................................................  $ 
Accrued wages and commissions ...............................................................................    
Accrued expenses .......................................................................................................    
Deferred gain on the sale of building .........................................................................    
Income taxes payable .................................................................................................    
Deferred rent ..............................................................................................................    
Deferred revenue ........................................................................................................    
Total current liabilities ...................................................................................................    

Deferred gain on the sale of building .............................................................................    
Deferred rent ..................................................................................................................    
Deferred income taxes, net ............................................................................................    
Income taxes payable .....................................................................................................    
Total liabilities ..............................................................................................................  

Commitments and contingencies ..................................................................................  

  $ 

3,123 
12,465 
18,411 

16,895 
50,894 

4,032 
1,450 
1,770 
58,146 

16,589 
11,227 
850 
5,722 
583,183 

24,584 
10,224 
37,571 
91,784 
20,530 
3,159 
771,035 

6,010 
16,695 
12,761 
2,523 
978 
544 
22,271 
61,782 

31,333 
16,592 

2,151 
111,858 

Stockholders’ equity: 

Preferred stock, $0.01 par value; 2,000 shares authorized; none outstanding ............    
Common stock, $0.01 par value; 30,000 shares authorized; 20,773 and 25,426 

issued and outstanding as of December 31, 2010 and 2011, respectively ..............  
Additional paid-in capital ...........................................................................................    
Accumulated other comprehensive loss .....................................................................    
Retained earnings .......................................................................................................    
Total stockholders’ equity .............................................................................................    
Total liabilities and stockholders’ equity .......................................................................  $ 

208 
374,981 

(8,706)   
15,019 
381,502 
439,648 

  $ 

254 
637,816 
(8,568) 
29,675 
659,177 
771,035 

See accompanying notes. 

F-5 

 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
   
 
   
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
COSTAR GROUP, INC.(cid:3)
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY 
 (in thousands) 

Common Stock 

  Amount 

Shares 
19,733    $ 

Additional 
Paid-In 
Capital 

Accumulated 
Other 
Comprehensive 
Income (Loss) 

Retained 
Earnings 
(Accumulated 
Deficit) 

Total 
Stockholders’ 
Equity 

197    $ 

333,983 

   $ 

(13,796)    $ 

(16,963)    $ 
18,693     

303,421 
18,693 

Balance at December 31, 2008 

Net income 
Foreign currency translation 

adjustment 

Net unrealized gain on 

investments 

Comprehensive income  
Exercise of stock options 
Restricted stock grants 
Restricted stock grants 

surrendered  

Stock compensation expense, net 

of forfeitures 

ESPP 
Consideration for PPR  

Consideration for Resolve 

Technology 

Excess tax benefit for exercised 

stock options  

Balance at December 31, 2009 

Net income 
Foreign currency translation 

adjustment 

Net unrealized loss on  

investments 

Comprehensive income  

$ 

Exercise of stock options 
Restricted stock grants 
Restricted stock grants 

surrendered  

Stock compensation expense, net 

of forfeitures 

ESPP 
Excess tax benefit for exercised 

stock options  

Balance at December 31, 2010 

Comprehensive 
Income  

$ 

18,693   

3,671   

2,560   
24,924   

$ 

85     
237     

(44)     

7     

573     

26     

2     

6     

1     

$ 

13,289   

20,617     

206     

2,232 

(672)       

6,438       
230       

20,897       

1,124       

403       
364,635       

(1,064)   

(77)   
12,148   

138     
113     

(103)     

8     

2     

3,720 

(2,906)       

8,270       
360       

902       

$ 

14,656   

25   

113   

$ 

14,794     

Net income 

Foreign currency translation 

adjustment 

Net unrealized gain on  

investments 

Comprehensive income 

Exercise of stock options 

Restricted stock grants 

Restricted stock grants 

surrendered  

Stock compensation expense, net 

of forfeitures 

Stock issued for equity offering 

ESPP 

Excess tax benefit for exercised 

stock options  

Balance at December 31, 2011 

2     

1     

198     

197     

(63)     

4,313     

43     

8     

25,426    $ 

254    $ 

6,212       

(2,307)      

8,056       
247,881       
452       

2,541       
637,816      $ 

See accompanying notes. 

F-6 

3,671     

2,560     

1,730     
13,289     

(7,565)     

(1,064)     

(77)     

3,671 

2,560 

2,232 
2 

(672) 

6,438 
230 

20,903 

1,125 

403 
359,006 
13,289 

(1,064) 

(77) 

3,722 

(2,906) 

8,270 
360 

902 

381,502 

14,656 

25 

113 

6,214 

1 

(2,307) 

8,056 

247,924 

452 

2,541 

(8,568)    $ 

29,675    $ 

659,177 

20,773     

208     

374,981       

(8,706)     

15,019     

14,656     

25     

113     

 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
     
     
 
    
     
 
 
     
     
 
    
 
 
 
 
     
     
 
   
 
     
     
     
 
    
     
     
 
 
 
 
     
   
 
     
     
 
 
 
       
     
     
 
 
 
      
     
     
 
 
 
     
     
     
     
 
 
 
     
     
     
 
 
 
     
     
 
 
 
     
     
 
 
 
     
     
     
     
 
 
 
     
     
 
    
     
 
     
     
 
    
 
 
 
     
     
 
   
 
     
     
     
 
    
     
     
 
 
 
 
   
 
     
     
 
 
 
     
       
     
     
 
 
 
 
     
     
     
 
 
 
     
     
     
     
 
 
 
     
     
     
 
 
 
     
     
     
     
 
 
 
     
     
       
     
 
     
     
       
     
 
     
     
       
     
   
     
       
     
     
 
 
 
 
     
     
 
 
 
       
     
     
 
 
 
     
     
     
 
 
 
     
     
     
     
 
 
 
     
     
 
 
 
     
     
     
 
 
 
     
     
     
     
 
 
 
 
COSTAR GROUP, INC. 
CONSOLIDATED STATEMENTS OF CASH FLOWS 
(in thousands) 

Year Ended December 31, 
2010 

2011 

2009 

18,693 

  $ 

13,289 

  $ 

14,656 

Operating activities: 
Net income .............................................................................................  $ 
Adjustments to reconcile net income to net cash provided by 

operating activities: 

Depreciation ...................................................................................   
Amortization ...................................................................................   
Deferred income tax expense, net ...................................................   
Provision for losses on accounts receivable ...................................   
Excess tax benefit from stock options ............................................   
Stock-based compensation expense ................................................   
Deferred consideration settlement ..................................................   
Property and equipment write-off ...................................................   

7,583 
7,093 
(2,428) 
4,172 
(403) 
6,460 

8,607 
5,042 
1,675 
1,471 
(902)      
8,306 

603 

674 

Changes in operating assets and liabilities, net of acquisitions: 

Accounts receivable........................................................................   
Interest receivable ...........................................................................   
Income tax receivable .....................................................................   
Prepaid expenses and other current assets ......................................   
Deposits and other assets ................................................................   
Accounts payable and other liabilities ............................................   
Deferred revenue ............................................................................   
Net cash provided by operating activities ..........................................   

(1,610) 
97 

(1,521) 
(1,013) 
1,531 
(812) 
38,445 

(1,776)      
70 
(4,940)     
(714)     
(385)     
6,690 
2,162 
39,269 

Investing activities: 

Settlement of investments ...............................................................   
Proceeds from sale of building, net ................................................   
Purchases of property and equipment and other assets ...................   
Acquisitions, net of cash acquired ..................................................   
Net cash provided by (used in) investing activities ............................   

17,159 

16,854 

(9,420) 
(3,207) 
4,532 

(57,358)     

(40,504)     

8,435 
4,417 
(17,104) 
1,525 
(2,541) 
8,103 
(1,207) 
628 

(4,573) 
4 
4,090 
1,042 
(154) 
4,030  
4,334 
25,685 

4,911 
83,553 
(15,013) 
(15,085) 
58,366 

Financing activities: 

Excess tax benefit from stock options ............................................   
Repurchase of restricted stock to satisfy tax withholding 

obligations ...................................................................................  
Proceeds from equity offering, net of transaction costs ..................   
Proceeds from exercise of stock options and ESPP ........................   
Net cash provided by financing activities ..........................................   

403 
(672) 

2,441 
2,172 

902 
(2,904)     

2,541 
(2,307) 

4,044 
2,042 

247,924 
6,622 
254,780 

Effect of foreign currency exchange rates on cash and cash 

655 
equivalents .........................................................................................  
45,804 
Net increase in cash and cash equivalents .............................................   
Cash and cash equivalents at beginning of year ....................................   
159,982 
Cash and cash equivalents at end of year ..............................................  $  205,786 

(188) 
619 
205,786 
  $  206,405 

  $ 

44 
338,875 
206,405 
545,280 

See accompanying notes. 

F-7 

 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
 
 
 
   
 
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
 
   
 
 
 
 
   
 
 
   
 
 
 
 
 
   
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
   
 
 
 
 
  
   
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
   
 
 
 
 
 
 
 
   
 
 
   
 
 
   
 
 
 
 
 
 
   
 
 
 
 
 
 
   
 
 
 
   
 
 
   
 
COSTAR GROUP, INC. 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

December 31, 2011 

1. ORGANIZATION 

CoStar  Group,  Inc.  (the  ―Company‖  or  ―CoStar‖)  has  created  a  comprehensive,  proprietary  database  of 
commercial real estate information covering the United States (―U.S.‖), as well as parts of the United Kingdom and 
France. Based on its  unique  database, the  Company provides  information and analytic  services  to the commercial 
real estate and related business community and operates within two operating segments, U.S. and International. The 
Company’s information and analytic services are typically distributed to its clients under subscription-based license 
agreements, which typically have a minimum term of one year and renew automatically. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

Basis of Presentation 

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. 
All  intercompany  balances  and  transactions  have  been  eliminated  in  consolidation.  Accounting  policies  are 
consistent for each operating segment. 

Use of Estimates 

The  preparation  of  financial  statements  in  conformity  with  U.S.  generally  accepted  accounting  principles 
(―GAAP‖) requires management to make estimates and assumptions that affect the amounts reported in the financial 
statements and accompanying notes. Actual results could differ from those estimates. 

Revenue Recognition 

The  Company  primarily  derives  revenues  by  providing  access  to  its  proprietary  database  of  commercial  real 
estate  information.  The  Company  generally  charges  a  fixed  monthly  amount  for  its  subscription-based  services. 
Subscription contract rates are based on the number of sites, number of users, organization size, the client’s business 
focus,  geography  and  the  number  of  services  to  which  a  client  subscribes.  Subscription-based  license  agreements 
typically have a minimum term of one year and renew automatically. 

Revenue  is  recognized  when  (1)  there  is  persuasive  evidence  of  an  arrangement,  (2)  the  fee  is  fixed  and 
determinable, (3) services have been rendered and payment has been contractually earned and (4) collectability is 
reasonably assured.   

Revenues  from  subscription-based  services  are  recognized  on  a  straight-line  basis  over  the  term  of  the 
agreement.  Deferred  revenue  results  from  advance  cash  receipts  from  customers  or  amounts  billed  in  advance  to 
customers from the sales of subscription licenses and is recognized over the term of the license agreement.  

Cost of Revenues 

Cost of revenues principally consists of salaries and related expenses for the Company’s researchers who collect 
and analyze the commercial real estate data that is the basis for the Company’s  information and analytic services. 
Additionally, cost of revenues includes the cost of data from third party data sources, which is expensed as incurred, 
and the amortization of database technology. 

Significant Customers 

No  single  customer  accounted  for  more  than  5%  of  the  Company’s  revenues  for  each  of  the  years  ended 

December 31, 2009, 2010 and 2011. 

F-8 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

 (CONTINUED) 

Foreign Currency Translation 

The  Company’s  functional  currency  in  its  foreign  locations  is  the  local  currency.  Assets  and  liabilities  are 
translated into U.S. dollars as of the balance sheet dates. Revenues, expenses, gains and losses are translated at the 
average  exchange  rates  in  effect  during  each  period.  Gains  and  losses  resulting  from  translation  are  included  in 
accumulated  other  comprehensive  income  (loss).  Net  gains  or  losses  resulting  from  foreign  currency  exchange 
transactions are included in the consolidated statements of operations. There  were no material gains or losses from 
foreign currency exchange transactions for the years ended December 31, 2009, 2010 and 2011. 

Accumulated Other Comprehensive Loss 

The components of accumulated other comprehensive loss were as follows (in thousands): 

Foreign currency translation adjustment ......................................................  $ 
Accumulated net unrealized loss on investments, net of tax ........................   
Total accumulated other comprehensive loss ...............................................  $ 

Advertising Costs 

Year Ended December 31, 
2011 
2010 
(5,890) 
(5,915) 
(2,678) 
(2,791) 
(8,568) 
(8,706) 

  $ 

  $ 

The  Company  expenses  advertising  costs  as  incurred.  E-commerce  advertising  expenses  were  approximately 

$3.3 million, $3.0 million and $2.5 million for the years ended December 31, 2009, 2010 and 2011, respectively. 

Income Taxes 

Deferred income taxes result from temporary differences between the tax basis of assets and liabilities and the 
basis reported in the Company’s consolidated financial statements. Deferred tax liabilities and assets are determined 
based on the difference between the financial statement and the tax basis of assets and liabilities using enacted rates 
expected to be in effect during the year in which the differences reverse. Valuation allowances are provided against 
assets,  including  net  operating  losses,  if  it  is  anticipated  that  some  or  all  of  an  asset  may  not  be  realized  through 
future  taxable  earnings  or  implementation  of  tax  planning  strategies.    Interest  and  penalties  related  to  income  tax 
matters are recognized in income tax expense.  

Net Income Per Share 

Net income per share is computed by dividing net income by the weighted average number of common shares 
outstanding  during  the  period  on  a  basic  and  diluted  basis.  The  Company’s  potentially  dilutive  securities  include 
stock options and restricted stock. Diluted net income per share considers the impact of potentially dilutive securities 
except in periods in which there is a net loss, as the inclusion of the potentially dilutive common shares would have 
an anti-dilutive effect.  

Stock-Based Compensation 

Equity instruments issued in exchange for employee services are accounted for using a fair-value based method 

and the fair value of such equity instruments is recognized as expense in the consolidated statements of operations. 

Stock-based  compensation  cost  is  measured  at  the  grant  date  of  the  share-based  awards  based  on  their  fair 
values,  and  is  recognized  on  a  straight  line  basis  as  expense  over  the  vesting  periods  of  the  awards,  net  of  an 
estimated forfeiture rate. 

F-9 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

 (CONTINUED) 

Stock-Based Compensation  (Continued) 

Cash  flows  resulting  from  excess  tax  benefits  are  classified  as  part  of  net  cash  flows  from  operating  and 
financing activities. Excess tax benefits represent tax benefits related to  stock-based compensation in excess of the 
associated deferred tax asset for such  equity compensation.  Net cash proceeds from the exercise of stock options 
and  the  purchase  of  shares  under  the  Employee  Stock  Purchase  Plan  (―ESPP‖)  were  approximately  $2.4  million, 
$4.0  million  and  $6.6  million  for  the  years  ended  December  31,  2009,  2010  and  2011, respectively.    There  were 
approximately  $400,000,  $900,000  and  $2.5  million  of  excess  tax  benefits  realized  from  stock  option  and  award 
exercises for the years ended December 31, 2009, 2010 and 2011.  

Stock-based compensation expense for stock options and restricted stock under equity incentive plans and stock 

purchases under the ESPP included in the Company's results of operations was as follows (in thousands): 

Cost of revenues ...................................................................................................   $ 
  888 
Selling and marketing ..........................................................................................  
  1,125 
Software development ..........................................................................................  
  588 
  3,859 
General and administrative ..................................................................................  
Total stock-based compensation ...................................................................   $  6,460 

  $  1,504    $  1,635 
1,339 
1,130 
3,999 
  $  8,306    $  8,103 

  1,518   
949   
  4,335   

Year Ended December 31, 
2011 
2010 

2009 

Cash and Cash Equivalents 

The Company considers all  highly  liquid investments purchased  with an original  maturity of  three  months or 
less to be cash equivalents. Cash equivalents consist of money market fund investments, commercial paper and U.S. 
Government  Securities.  As  of  December  31,  2010  and  2011,  cash  of  approximately  $190,000  and  $195,000, 
respectively, was held to support letters of credit for security deposits. 

Investments 

The Company determines the appropriate classification of  debt and equity investments at the time of purchase 
and re-evaluates such designation as of each balance sheet date.  The Company considers all of its investments to be 
available-for-sale.  Short-term investments consist of government/federal notes and bonds and corporate obligations 
with  maturities  greater  than  90  days  at  the  time  of  purchase.  Available-for-sale  short-term  investments  with 
contractual  maturities  beyond  one  year  are  classified  as  current  in  the  Company’s  consolidated  balance  sheets 
because they represent the investment of cash that is available for current operations. Long-term investments consist 
of  variable  rate  debt  instruments  with  an  auction  reset  feature,  referred  to  as  auction  rate  securities  (―ARS‖).  
Investments are carried at fair value.   

Concentration of Credit Risk and Financial Instruments 

The Company performs ongoing credit evaluations of its customers’ financial condition and generally does not 
require that its customers’ obligations to the Company be secured. The Company maintains reserves for  estimated 
inherent credit losses, and such losses have been within management’s expectations. The large size and widespread 
nature  of  the  Company’s  customer  base  and  the  Company’s  lack  of  dependence  on  any  individual  customer 
mitigates  the  risk  of  nonpayment  of  the  Company’s  accounts  receivable.  The  carrying  amount  of  the  accounts 
receivable  approximates  the  net  realizable  value.  The  carrying  value  of  the  Company’s  financial  instruments, 
including cash and cash equivalents, short-term investments, long-term investments, accounts receivable, accounts 
payable, and accrued expenses, approximates fair value.  

F-10 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

 (CONTINUED) 

Accounts Receivable, Net of Allowance for Doubtful Accounts 

Accounts receivable are recorded at the invoiced amount. Accounts receivable payment terms vary and amounts 
due from customers are stated in the financial statements net of an allowance for doubtful accounts.  The allowance 
for  doubtful  accounts  is  based  on  the  Company’s  assessment  of  the  collectability  of  customer  accounts.    The 
Company  regularly  reviews  the  allowance  by  considering  factors  such  as  historical  experience,  the  aging  of  the 
balances, and current economic conditions that may affect a customer’s ability to pay.  

Property and Equipment 

Property  and  equipment  are  stated  at  cost.  All  repairs  and  maintenance  costs  are  expensed  as  incurred. 
Depreciation and amortization are calculated on a straight-line basis over the following estimated useful lives of the 
assets: 

Building 
Leasehold improvements 
Furniture and office equipment 
Research vehicles 
Computer hardware and software 

  Thirty-nine years 
  Shorter of lease term or useful life 
  Five to ten years 
  Five years 
  Two to five years 

Qualifying  internal-use  software  costs  incurred  during  the  application  development  stage,  which  consist 
primarily  of  outside  services,  purchased  software  license  costs  and  internal  product  development  costs,  are 
capitalized and amortized over the estimated useful life of the asset. All other costs are expensed as incurred.  

Goodwill, Intangibles and Other Assets 

Goodwill  represents  the  excess  of  costs  over  the  fair  value  of  assets  of  acquired  businesses.  Goodwill  and 
intangible  assets  acquired  in  a  business  combination  and  determined  to  have  an  indefinite  useful  life  are  not 
amortized, but instead tested for impairment at least annually by reporting unit. The Company’s operating segments, 
U.S.  and  International,  are  the  reporting  units  tested  for  potential  impairment.    The  goodwill  impairment  test  is  a 
two-step process.  The first step is to determine the fair value of each reporting unit.  The estimate of the fair value 
of each reporting unit is based on a projected discounted cash flow model that includes significant assumptions and 
estimates  including  the  Company’s  future  financial  performance  and  a  weighted  average  cost  of  capital.  The  fair 
value of each reporting unit is compared to the carrying amount of the reporting unit. If the carrying value of the 
reporting unit exceeds the  fair value, then the  second step of the process is performed to measure the impairment 
loss, if any.  The impairment loss is measured based on a projected discounted cash flow method using a discount 
rate determined by the Company’s management to be commensurate with the risk in its current business model. 

 Intangible assets with estimable useful lives that arose from acquisitions on or after July 1, 2001 are amortized 
over  their  respective  estimated  useful  lives  using  a  method  of  amortization  that  reflects  the  pattern  in  which  the 
economic benefits of the intangible assets are consumed or otherwise used up, and are reviewed at least annually for 
impairment.  

Acquired  database  technology,  customer  base  and  trade  names  and  other  are  related  to  the  Company’s 
acquisitions  (see  Notes  3,  7  and  8).  Acquired  database  technology  and  trade  names  and  other  are  amortized  on  a 
straight-line  basis  over  periods  ranging  from  two  to  ten  years.  The  acquired  intangible  asset  characterized  as 
customer  base  consists  of  one  distinct  intangible  asset  composed  of  acquired  customer  contracts  and  the  related 
customer relationships. Acquired customer bases that arose from acquisitions prior to July 1, 2001 are amortized on 
a straight-line basis principally over a period of ten years. Acquired customer bases that arose from acquisitions on 
or  after  July  1,  2001  are  amortized  on  a  125%  declining  balance  method  over  ten  years.  The  cost  of  capitalized 
building photography is amortized on a straight-line basis over five years. 

F-11 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

 (CONTINUED) 

Long-Lived Assets 

Long-lived  assets,  such  as  property,  plant,  and  equipment,  and  purchased  intangibles  subject  to  amortization, 
are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an 
asset  may  not  be  recoverable.  Recoverability  of  assets  to  be  held  and  used  is  measured  by  a  comparison  of  the 
carrying amount of an asset to estimated  undiscounted future cash  flows expected to be  generated by the asset or 
asset  group.  If  the  carrying  amount  of  an  asset  exceeds  its  estimated  future  cash  flows,  an  impairment  charge  is 
recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset. 

Assets  to  be  disposed  of  would  be  separately  presented  in  the  balance  sheet  and  reported  at  the  lower  of  the 
carrying amount or fair value less costs to sell, and would no longer be depreciated. The assets and liabilities of a 
disposal group classified as held for sale would be presented separately in the appropriate asset and liability sections 
of the balance sheet. 

Capitalized Product Development Costs 

Product  development  costs  are  expensed  as  incurred  until  technological  feasibility  has  been  established,  at 
which time such costs are capitalized.  Costs are capitalized, to the extent that the capitalizable costs do not exceed 
the  realizable  value  of  such  costs,  until  the  product  is  available  for  general  release  to  customers.  The  Company 
defines the establishment of technological feasibility as the completion of all planning, designing, coding and testing 
activities that are  necessary  to establish products that  meet design specifications  including  functions,  features and 
technical  performance  requirements.    The  Company’s  capitalized  product  development  costs  had  a  total  net  book 
value of approximately $0 and $493,000 as of December 31, 2010 and 2011, respectively. These capitalized product 
development  costs  are  included  in  intangible  and  other  assets  in  the  Company’s  consolidated  balance  sheets.  
Amortization is computed using a straight-line method over the remaining estimated economic life of the product, 
typically three to five years after the software is ready for its intended use.  No amortization expense for capitalized 
product  development  costs  was  recognized  by  the  Company  for  the  years  ended  December  31,  2009  and  2010, 
respectively.  The Company amortized capitalized product development costs of approximately $80,000 for the year 
ended December 31, 2011.  

Debt Issuance Costs 

Costs  incurred  in  connection  with  the  issuance  of  long-term  debt  are  capitalized  and  amortized  as  interest 
expense  over  the  term  of  the  related  debt  using  the  effective  interest  method.    The  Company  capitalized  debt 
issuance  costs  of  approximately  $0  and  $900,000  as  of  December  31,  2010  and  2011,  respectively.    The  debt 
issuance  costs  are  associated  with  the  financing  commitment  from  JPMorgan  Chase  Bank,  N.A.  (―J.P.  Morgan 
Bank‖) and the credit facility entered into subsequent to December 31, 2011.  See Notes 19 and 20 for additional 
information  regarding  the  financing  commitment  from  J.P.  Morgan  Bank  and  the  credit  facility  entered  into 
subsequent  to  December  31,  2011.    No  amortization  expense  for  debt  issuance  costs  was  recognized  by  the 
Company for the years ended December 31, 2009, 2010 and 2011, respectively.    

F-12 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

 (CONTINUED) 

Recent Accounting Pronouncements 

In April 2009, the Financial Accounting Standards Board (―FASB‖) issued authoritative guidance related to the 
initial  recognition,  measurement  and  subsequent  accounting  for  assets  and  liabilities  arising  from  pre-acquisition 
contingencies  in  a  business  combination.  It  requires  that  such  assets  acquired  or  liabilities  assumed  be  initially 
recognized at fair value at the acquisition date if fair value can be determined during the measurement period. When 
fair value cannot be determined, companies should typically account for the acquired contingencies using existing 
guidance.  This  guidance  requires  that  companies  expense  acquisition  and  deal-related  costs  that  were  previously 
allowed  to  be  capitalized.  This  guidance  also  requires  that  a  systematic  and  rational  basis  for  subsequently 
measuring  and  accounting  for  the  assets  or  liabilities  be  developed  depending  on  their  nature.  This  guidance  was 
effective for contingent assets or liabilities arising from business combinations with an acquisition date on or after 
January 1, 2009.   The adoption of this guidance changes the accounting treatment and disclosure for certain specific 
items in a business combination with an acquisition date subsequent to December 31, 2008.  The Company adopted 
this  guidance  on  January  1,  2009,  and began  expensing  acquisition  and  deal-related  costs  in  2009  based  on  the 
issued authoritative guidance. 

In April 2009, the FASB issued authoritative guidance for determining whether a market is active or inactive, 
and  whether a transaction is distressed.  This guidance is applicable to all assets and liabilities (financial and non-
financial) and requires enhanced disclosures. The Company adopted this guidance for its interim period ending June 
30, 2009. The adoption of this guidance did not have a material impact on the Company’s results of operations or 
financial position, but did require additional disclosures in the Company’s financial statements. 

In  April  2009,  the  FASB  issued  authoritative  guidance  requiring  disclosures  in  interim  reporting  periods 
concerning  the  fair  value  of  financial  instruments  that  were  previously  only  required  in  the  annual  financial 
statements. The Company adopted the provisions of this guidance for the interim period ending June 30, 2009. The 
adoption  of  this  guidance  did  not  have  a  material  impact  on  the  Company’s  results  of  operations  or  financial 
position, but did require additional disclosures in the Company’s financial statements.  

In April 2009, the FASB issued authoritative guidance that redefines what constitutes an other-than-temporary 
impairment,  defines  credit  and  non-credit  components  of  an  other-than-temporary  impairment,  prescribes  their 
financial  statement  treatment,  and  requires  enhanced  disclosures  relating  to  such  impairments.  The  Company 
adopted  this  guidance  for  the  interim  period  ending  June  30,  2009. The  adoption  of  this  guidance  did  not  have  a 
material impact on the Company’s results of operations or financial position, but did require additional disclosures 
in the Company’s financial statements. 

In May 2009, the FASB issued authoritative guidance which establishes general standards of accounting for and 
disclosure of events that occur after the balance sheet date but before financial statements are issued. This guidance 
was effective for all interim and annual reporting periods ending after June 15, 2009. This guidance has not resulted 
in significant changes in the subsequent events that the Company reports, either through recognition or disclosure, in 
its financial statements. 

In June 2009, the FASB issued authoritative guidance to amend the manner in which entities evaluate whether 
consolidation is required for variable interest entities (VIE).  Previously, variable  interest holders were required to 
determine whether they had a controlling financial interest in a VIE based on a quantitative analysis of the expected 
gains  and/or  losses  of  the  entity.  The  new  guidance  requires  an  enterprise  with  a  variable  interest  in  a  VIE  to 
qualitatively assess whether it has a controlling financial interest in the entity, and if so, whether it is the primary 
beneficiary.  This  guidance  also  requires  that  companies  continually  evaluate  VIEs  for  consolidation,  rather  than 
assessing whether consolidation is required based upon the occurrence of triggering events.  This guidance enhances 
disclosures to provide financial statement  users  with  greater transparency about transfers of  financial assets and a 
transferor’s continuing involvement with transferred financial assets. This guidance is effective for the first annual 
reporting  period  beginning  after  November  15,  2009.  This  guidance  did  not  have  a  material  impact  on  the 
Company’s results of operations, financial position or related disclosures. 

F-13 

 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

 (CONTINUED) 

Recent Accounting Pronouncements

 (Continued) 

In June 2009, the FASB issued authoritative guidance which replaced the previous hierarchy of U.S. GAAP and 
establishes  the  FASB  Accounting  Standards  Codification  as  the  single  source  of  authoritative  U.S.  GAAP 
recognized  by  the  FASB  to  be  applied  by  nongovernmental  entities.  This  guidance  is  effective  for  financial 
statements  issued  for  interim  and  annual  periods  ending  after  September  15,  2009.  This  guidance  did  not  have  a 
material  impact  on  the  Company’s  results  of  operations  or  financial  position,  but  did  require  changes  to  the 
disclosures in the Company’s financial statements. 

In July 2009, the FASB issued authoritative guidance to improve the consistency with which companies apply 
fair value measurements guidance to liabilities.  This guidance is effective for interim and annual periods beginning 
after  September  30,  2009.  This  guidance  did  not  have  a  material  impact  on  the  Company’s  results  of  operations, 
financial position or related disclosures. 

In October 2009, the FASB issued authoritative guidance that amends existing guidance for identifying separate 
deliverables  in  a  revenue-generating  transaction  where  multiple  deliverables  exist,  and  provides  guidance  for 
measuring  and  allocating  revenue  to  one  or  more  units  of  accounting.  In  addition,  the  FASB  issued  authoritative 
guidance  on  arrangements  that  include  software  elements.    Under  this  guidance,  tangible  products  containing 
software components and non-software components that are essential to the functionality of the tangible product will 
no  longer  be  within  the  scope  of  the  software  revenue  recognition  guidance.  This  guidance  is  effective  using  the 
prospective application or the retrospective application for revenue arrangements entered into or materially modified 
in fiscal years beginning on or after June 15, 2010 with earlier application permitted. This  guidance did not have a 
material impact on the Company’s results of operations or financial position.  

In  January  2010,  the  FASB  issued  authoritative  guidance  that  amends  the  disclosure  requirements  related  to 
recurring  and  nonrecurring  fair  value  measurements.  This  guidance  requires  new  disclosures  on  the  transfers  of 
assets and liabilities between Level 1 (assets and liabilities measured using observable inputs such as quoted prices 
in  active  markets)  and  Level  2  (assets  and  liabilities  measured  using  inputs  other  than  quoted  prices  in  active 
markets  that  are  either  directly  or  indirectly  observable)  of  the  fair  value  measurement  hierarchy,  including  the 
amount  and  reason  of  the  transfers.  Additionally,  this  guidance  requires  a  roll  forward  of  activities  on  purchases, 
sales, issuances, and settlements of the assets and liabilities measured using significant unobservable inputs (Level 3 
fair  value  measurements).  This  guidance  is  effective  for  interim  and  annual  reporting  periods  beginning  after 
December  15,  2009,  with  the  exception  of  the  additional  disclosure  for  Level  3  assets  and  liabilities,  which  is 
effective for fiscal years beginning after December 15, 2010, and for interim periods within those fiscal years. This 
guidance did not have a material impact on the Company’s results of operations or financial position, but did require 
changes to the disclosures in its interim and annual financial statements. 

In February 2010, the FASB  issued authoritative  guidance  that amends the disclosure requirements related to 
subsequent events. This guidance  includes the definition of a Securities and Exchange Commission  filer, removes 
the  definition  of  a  public  entity,  redefines  the  reissuance  disclosure  requirements  and  allows  public  companies  to 
omit the disclosure of the date through which subsequent events have been evaluated.  This guidance is effective for 
financial statements issued for interim and annual periods ending after February 2010. This guidance did not have a 
material  impact  on  the  Company’s  results  of  operations  or  financial  position,  but  did  require  changes  to  the 
Company’s disclosures in its financial statements. 

F-14 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

 (CONTINUED) 

Recent Accounting Pronouncements

 (Continued) 

In April 2010, the FASB issued authoritative guidance related to the criteria that should be met for determining 
whether the milestone method of revenue recognition is appropriate.  A vendor can recognize consideration that is 
contingent  upon  achievement  of  a  milestone  in  its  entirety  as  revenue  in  the  period  in  which  the  milestone  is 
achieved if the milestone is: (a) commensurate with either the vendor’s performance to achieve the milestone or the 
enhancement of the value of the item delivered; (b) relates solely to past performance; and (c) is reasonable relative 
to  all  deliverables  and  payment  terms  in  the  arrangement.    This  guidance  is  effective  on  a  prospective  basis  for 
financial statements issued for interim and annual periods ending after June 15, 2010, with early adoption permitted.  
The  adoption of this  guidance did not have  a  material impact on the Company’s results of operations or financial 
position.      

In  May  2011,  the  FASB  issued  authoritative  guidance  to  develop  common  requirements  for  measuring  fair 
value  and  for  disclosing  information  about  fair  value  measurements  in  accordance  with  GAAP  and  International 
Financial  Reporting Standards (―IFRS‖).  This guidance clarifies the intent of the existing fair value measurement 
and  disclosure  requirements  and  modifies  principles  and  requirements  for  measuring  fair  value  and  for  disclosing 
information about fair value measurement.  This guidance is effective on a prospective basis for financial statements 
issued  for  interim  and  annual  periods  beginning  after  December  15,  2011.    This  guidance  is  not  expected  to 
materially  impact  the  Company’s  results  of  operations  or  financial  position,  but  will  require  changes  to  the 
disclosures in its interim and annual financial statements. 

In  June  2011,  the  FASB  issued  authoritative  guidance  to  improve  the  comparability,  consistency  and 
transparency of financial reporting and to increase the prominence of items reported in other comprehensive income.  
This  guidance  requires  changes  in  stockholders’  equity  to  be  presented  either  in  a  single  continuous  statement  of 
comprehensive income or in two separate but consecutive statements.  Under the two-statement approach, the first 
statement  should  present  total  net  income  and  its  components  followed  consecutively  by  a  second  statement  that 
should present total other comprehensive income, the components of other comprehensive income and the total of 
comprehensive  income.    This  guidance  is  effective  on  a  retrospective  basis  for  financial  statements  issued  for 
interim and annual periods  beginning after December 15, 2011.   This guidance is not expected to have a material 
impact  on  the  Company’s  results  of  operations  or  financial  position,  but  will  require  changes  to  the  consolidated 
statement of stockholders’ equity and the addition of the consolidated statement of comprehensive income. 

In  September  2011,  the  FASB  issued  authoritative  guidance  to  simplify  how  companies  test  goodwill  for 
impairment.    The  guidance  permits  a  company  to  first  assess  qualitative  factors  to  determine  whether  it  is  more 
likely  than  not  that  the  fair  value  of  a  reporting  unit  is  less  than  its  carrying  amount  as  a  basis  for  determining 
whether it is necessary to perform the two-step goodwill impairment test.  This guidance is effective  for goodwill 
impairment tests performed for interim and annual periods beginning after December 15, 2011, with early adoption 
permitted.    This  guidance  is  not  expected  to  have  a  material  impact  on  the  Company’s  results  of  operations  or 
financial position. 

In  December  2011,  the  FASB  issued  authoritative  guidance  to  defer  the  effective  date  pertaining  to  the 
presentation of reclassification adjustments out of accumulated other comprehensive income previously established 
in the authoritative guidance issued in June 2011.  This guidance also defers the presentation of the effect of those 
reclassification adjustments on the face of the financial statements where net income is presented, by component of 
net  income,  and  on  the  face  of  the  financial  statements  where  other  comprehensive  income  is  presented,  by 
component  of  other  comprehensive  income.    This  guidance  is  effective  on  a  retrospective  basis  for  financial 
statements issued for interim and annual periods beginning after December 15, 2011.  This guidance is not expected 
to have a material impact on the Company’s results of operations or financial position, but will require changes to 
the consolidated statement of stockholders’ equity and the addition of the consolidated statement of comprehensive 
income. 

F-15 

 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

3. ACQUISITIONS 

On October 25, 2011, the Company acquired Virtual Premise, Inc. (―Virtual Premise‖), a Software as a Service 
(―SaaS‖)  provider  of  real  estate  information  management  solutions.  Pursuant  to  the  terms  of  the  acquisition 
agreement, the  Company paid approximately $17.2 million in cash, approximately 80% of which was paid on the 
closing date to the Virtual Premise stockholders and the remaining 20% of which will be held in escrow until paid 
270  days  after  the  closing  date,  subject  to  use  of  such  funds  to  satisfy  any  post-closing  net  working  capital 
adjustments  or  indemnification  claims  made  prior  to  such  date.    The  purchase  price  was  later  reduced  by 
approximately  $200,000  after  taking  into  account  post-closing  purchase  price  adjustments  and  this  amount  is 
expected to be paid from the escrow fund to the Company.   

The purchase price for the Virtual Premise acquisition was allocated as follows (in thousands): 

Acquired trade names and other ............................................................................................................  $ 
Acquired customer base ........................................................................................................................   
Acquired database technology .............................................................................................................   
Goodwill ..............................................................................................................................................   
Other assets and liabilities ....................................................................................................................   

Total purchase consideration ............................................................................................................  $ 

740 
3,740 
810 
12,205 
(529) 
16,966 

This acquisition was accounted for using the acquisition method which requires that, among other things, assets 
acquired and liabilities assumed be recorded at their fair values as of the acquisition date.  The purchase price was 
allocated  to  tradenames,  customer  base,  database  technology,  goodwill  and  various  other  asset  and  liability 
accounts.   The  acquired  customer  base  for  the  acquisition,  which  consists  of  one  distinct  intangible  asset  and  is 
composed  of  acquired  customer  contracts  and  the  related  customer  relationships,  is  being  amortized  on  a  125% 
declining balance method over ten years. The identified intangibles are amortized over their estimated useful lives.  
Goodwill for this acquisition is not amortized, but is subject to annual impairment tests.  The results of operations of 
Virtual  Premise  have  been  consolidated  with  those  of  the  Company  since  the  date  of  the  acquisition  and  are  not 
considered  material  to  the  Company’s  consolidated  financial  statements.  Accordingly,  pro  forma  financial 
information  has  not  been  presented  for  the  acquisition.  The  purchase  accounting  is  preliminary  and  is  subject  to 
change. 

4. INVESTMENTS 

The Company determines the appropriate classification of  debt and equity investments at the time of purchase 
and re-evaluates such designation as of each balance sheet date.  The Company considers all of its investments to be 
available-for-sale.  Short-term investments consist of government/federal notes and bonds and corporate obligations 
with  maturities  greater  than  90  days  at  the  time  of  purchase.  Available-for-sale  short-term  investments  with 
contractual  maturities  beyond  one  year  are  classified  as  current  in  the  Company’s  consolidated  balance  sheets 
because they represent the investment of cash that is available for current operations. Long-term investments consist 
of variable rate debt instruments with an auction reset feature, referred to as ―ARS‖.  Investments are carried at fair 
market value. 

F-16 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

4. INVESTMENTS 

 (CONTINUED) 

Scheduled maturities of investments classified as available-for-sale as of December 31, 2011 are as follows (in 

thousands): 

Maturity 

Due in: 

   Fair Value 

2012 .............................................................................................................................................  $ 
2013-2016 ....................................................................................................................................   
2017-2021 ....................................................................................................................................   
2022 and thereafter ......................................................................................................................   
Available-for-sale investments .........................................................................................................  $ 

3,461 

54 
24,584 
28,099 

The realized gains on the Company’s investments for the years ended December 31, 2009, 2010 and 2011 were 
approximately  $4,000,  $11,000  and  $0,  respectively.    The  realized  losses  on  the  Company’s  investments  for  the 
years ended December 31, 2009, 2010 and 2011 were approximately $5,000, $41,000 and $0, respectively. 

Unrealized holding gains and losses, net of the related tax effect, on available-for-sale securities are excluded 
from  earnings  and  are  reported  as  a  separate  component  of  accumulated  other  comprehensive  income  (loss)  in 
stockholders’  equity  until  realized.    Realized  gains  and  losses  from  the  sale  of  available-for-sale  securities  are 
determined on a specific-identification basis. A decline in market value of any available-for-sale security below cost 
that is deemed to be other-than-temporary results in a reduction in carrying amount to fair value.  The impairment is 
charged  to  earnings  and  a  new  cost  basis  for  the  security  is  established.    Dividend  and  interest  income  are 
recognized when earned. 

As of December 31, 2011, the amortized cost basis and fair value of investments classified as available-for-sale 

are as follows (in thousands): 

3,397    $ 
Corporate debt securities .................................................................  
55    
Government-sponsored enterprise obligations  ............................................  
Auction rate securities ..................................................................................  
27,325    
30,777   $ 
Available-for-sale investments .....................................................................  

$ 

$ 

64 

 $ 

64 

 $ 

  Fair Value 
3,461 
   $ 
54 
24,584 
28,099 

(1)    
(2,741)    
(2,742)    $ 

Amortized 
Cost 

Gross 
Unrealized 
Gains 

Gross 
Unrealized 
Losses 

As of December 31, 2010, the amortized cost basis and fair value of investments classified as available-for-sale 

are as follows (in thousands): 

Amortized 
Cost 

Gross 
Unrealized 
Gains 

Gross 
Unrealized 
Losses 

  Fair Value 
    $ 

46 
3,603 
73 
29,189 
32,911 

(1)    
(2,986)    
(2,987)    $ 

Collateralized debt obligations ........................................................  
Corporate debt securities .................................................................  
3,407    
74    
Government-sponsored enterprise obligations  ............................................  
Auction rate securities ..................................................................................  
32,175    
35,702   $ 
Available-for-sale investments .....................................................................  

46   $ 

$ 

$ 

 $ 

196 

196 

 $ 

F-17 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
   
    
 
 
  
 
 
  
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

4. INVESTMENTS 

 (CONTINUED) 

The  unrealized  losses  on  the  Company’s  investments  as  of  December  31,  2010  and  2011  were  generated 
primarily  from  changes  in  interest  rates.  The  losses  are  considered  temporary,  as  the  contractual  terms  of  these 
investments do not permit the issuer to settle the security at a price less than the amortized cost of the investment. 
Because the Company does not intend to sell these instruments and it is more likely than not that the Company will 
not be required to sell these instruments prior to anticipated recovery, which may be maturity, it does not consider 
these  investments  to  be  other-than-temporarily  impaired  as  of  December  31,  2010  and  2011.    See  Note  5  to  the 
consolidated financial statements for further discussion of the fair value of the Company’s financial assets. 

The  components  of  the  Company’s  investments  in  an  unrealized  loss  position  for  more  than  twelve  months 

consists of the following (in thousands): 

December 31, 

2010 

2011 

Aggregate  
Fair 
 Value 

Gross 
Unrealized 
Losses 

Aggregate  
Fair 
 Value 

Gross  
Unrealized  
Losses 

73   $ 
Government-sponsored enterprise obligations ......................................  
29,189    
Auction rate securities ...........................................................................  
29,262   $ 
Investments in an unrealized loss position ............................................  

$ 

$ 

(1)   $ 
(2,986)    
(2,987)   $ 

54   $ 
24,584    
24,638   $ 

(1) 
(2,741) 
(2,742) 

The  Company  did  not  have  any  investments  in  an  unrealized  loss  position  for  less  than  twelve  months  as  of 

December 31, 2010 and 2011, respectively. 

5. FAIR VALUE 

Fair value is defined as the price that would be received in the sale of an asset or paid to transfer a liability in an 
orderly  transaction  between  market  participants.    There  is  a  three-tier  fair  value  hierarchy,  which  categorizes  the 
inputs used in measuring fair value.  These tiers include: Level 1, defined as observable inputs such as quoted prices 
in active markets for identical assets; Level 2, defined as inputs other than quoted prices in active markets that are 
either  directly  or  indirectly  observable;  and  Level  3,  defined  as  unobservable  inputs  for  which  little  or  no  market 
data exists, therefore requiring an entity to develop its own assumptions. 

The following table represents the Company's fair value hierarchy for its financial assets (cash, cash equivalents 

and investments) measured at fair value on a recurring basis as of December 31, 2011 (in thousands): 

Assets: 

Level 1 

  Level 2 

  Level 3 

Total 

Cash ...........................................................................................  $  75,688  
Money market funds ..................................................................      220,996  
248,596  
Commercial paper ...................................................................................  
Corporate debt securities .........................................................................  
Government-sponsored enterprise obligations ........................................  
Auction rate securities .............................................................................  
Total assets measured at fair value ...............................................................  

$  545,280   $ 

$  75,688 
  220,996 
  248,596 
3,461 
54 
  24,584 
$  573,379 

3,461  
54  

3,515  

  24,584  
$  24,584  

$ 

  $ 

F-18 

 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
  
 
 
 
 
  
 
 
  
 
  
 
  
 
 
  
 
 
  
 
 
  
 
 
    
  
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

5. FAIR VALUE 

 (CONTINUED) 

The following table represents the Company's fair value hierarchy for its financial assets (cash, cash equivalents 

and investments) and liabilities measured at fair value on a recurring basis as of December 31, 2010 (in thousands): 

Assets: 

Level 1 

  Level 2 

  Level 3 

Total 

Cash ...........................................................................................  $  55,496  
Money market funds ..................................................................      150,909  
Collateralized debt obligations ................................................................  
Corporate debt securities .........................................................................  
Government-sponsored enterprise obligations ........................................  
Auction rate securities .............................................................................  
Total assets measured at fair value ...............................................................  
Liabilities: 

$  206,405   $ 

$ 

  $ 

46  
3,603  
73  

3,722  

  29,189  
$  29,189  

$  55,496 
  150,909 
46 
3,603 
73 
  29,189 
$  239,316 

Deferred consideration ............................................................................  
Total liabilities measured at fair value .........................................................  

$ 
$ 

   $ 
   $ 

$ 
$ 

3,222  
3,222  

$ 
$ 

3,222 
3,222 

The  Company’s  Level  2  assets  consist  of  collateralized  debt  obligations,  corporate  debt  securities  and 
government-sponsored enterprise obligations, which do not have directly observable quoted prices in active markets.  
The Company’s Level 2 assets are valued using matrix pricing.   

The  Company’s  Level  3  assets  consist  of  ARS,  whose  underlying  assets  are  primarily  student  loan  securities 
supported by guarantees  from the Federal Family Education Loan Program (―FFELP‖) of the U.S. Department of 
Education. 

The  following  table  summarizes  changes  in  fair  value  of  the  Company’s  Level  3  assets  from  December  31, 

2007 to December 31, 2011 (in thousands): 

Auction 
Rate 
Securities 

Balance at December 31, 2007  ...................................................................................................................  $ 
Change in unrealized loss included in other comprehensive loss ..........................................................  
Settlements .............................................................................................................................................  
Balance at December 31, 2008  ...................................................................................................................  
Change in unrealized gain included in other comprehensive loss ..........................................................   
Settlements .............................................................................................................................................  
Balance at December 31, 2009  ...................................................................................................................  
Change in unrealized gain included in other comprehensive loss ..........................................................   
Settlements .............................................................................................................................................  
Balance at December 31, 2010  ...................................................................................................................  
Change in unrealized gain included in other comprehensive loss ..........................................................  
Settlements .............................................................................................................................................  
Balance at December 31, 2011  ...................................................................................................................  $ 

53,975 
(3,710) 
(20,925) 
29,340 
684 
(300) 
29,724 
40 
(575) 
29,189 
245 
(4,850) 
24,584 

F-19 

 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
  
 
 
 
 
  
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
  
 
 
    
         
  
 
  
 
  
 
  
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

5. FAIR VALUE 

 (CONTINUED) 

ARS  are  variable  rate  debt  instruments  whose  interest  rates  are  reset  approximately  every  28  days.  The 

underlying securities have contractual maturities greater than twenty years.  The ARS are recorded at fair value.   

As of December 31, 2011, the Company held ARS with $27.3 million par value, all of which failed to settle at 
auction.  The  majority  of  these  investments  are  of  high  credit  quality  with  AAA  credit  ratings and  are  primarily 
student  loan  securities  supported  by  guarantees  from  the  FFELP of  the  U.S.  Department  of  Education.  The 
Company may not be able to liquidate and fully recover the carrying value of the ARS in the near term.  As a result,  
these securities are classified as long-term investments in the Company’s consolidated balance sheet as of December 
31, 2011.  

While the Company continues to earn interest on its ARS investments at the contractual rate, these investments 
are not currently trading and therefore do not currently have a readily determinable market value.  The estimated fair 
value of the ARS no longer approximates par value.  The Company used a discounted cash flow model to determine 
the estimated fair value of its investment in ARS as of December 31, 2011.  The assumptions used in preparing the 
discounted  cash  flow  model  include  estimates  for  interest  rates,  credit  spreads,  timing  and  amount  of  cash  flows, 
liquidity  risk  premiums,  expected  holding  periods  and  default  risk.    Based  on  this  assessment  of  fair  value,  as  of 
December  31,  2011,  the  Company  determined  there  was  a  decline  in  the  fair  value  of  its  ARS  investments  of 
approximately $2.7 million.  The decline was deemed to be a temporary impairment and recorded as an unrealized 
loss in accumulated other comprehensive loss in stockholders’ equity.  In addition, while a majority of the ARS are 
currently  rated  AAA,  if  the  issuers  are  unable  to  successfully  close  future  auctions  and/or  their  credit  ratings 
deteriorate,  the  Company  may  be  required  to  record  additional  unrealized  losses  in  accumulated  other 
comprehensive loss or an other-than-temporary impairment charge to earnings on these investments. 

As of December 31, 2011, the Company had no Level 3 liabilities.  As of December 31, 2010, the Company 
held Level 3 liabilities for deferred consideration related to the Company’s October 19, 2009 acquisition of Resolve 
Technology, Inc. (―Resolve Technology‖). The deferred consideration totaled $3.2 million as of December 31, 2010 
and  included  (i)  a  potential  deferred  cash  payment  due  approximately  two  years  after  closing  based  on  the 
incremental growth of Resolve Technology’s revenue as of September 2011 over its revenue as of September 2009, 
and (ii) other potential deferred cash payments for successful completion of operational and sales milestones during 
the period from closing through no later than October 31, 2013, which period may be extended by the parties to a 
date  no  later  than  December  31,  2014.    On  June  24,  2011,  the  Company  made  a  payment  of  $500,000  for  the 
successful completion of one of the operational milestones.  On September 8, 2011, the Company entered into an 
agreement  to  settle  all  remaining  potential  deferred  cash  payments  due  under  the  original  agreement.    Under  the 
terms of the agreement,  the  Company  made a payment of $1.6 million  on September  14,  2011  to settle the entire 
obligation.  The Company reversed the remaining $1.2 million deferred consideration as a reduction to general and 
administrative expense during the three months ended September 30, 2011. 

The following table summarizes changes in fair value of the Company’s Level 3 liabilities from December 31, 

2009 to December 31, 2011 (in thousands): 

Balance at December 31, 2009  ...................................................................................................................  $ 
Accretion for 2010 .................................................................................................................................  
Balance at December 31, 2010  ...................................................................................................................  
Accretion for 2011 .................................................................................................................................  
Payments made in 2011 .........................................................................................................................  
Adjustments made in 2011 .....................................................................................................................  
Balance at December 31, 2011  ...................................................................................................................  $ 

Deferred 
Consideration 
3,082 
140 
3,222 
85 
(2,100) 
(1,207) 

F-20 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

5. FAIR VALUE 

 (CONTINUED) 

Prior to the settlement on September 8, 2011, the Company used a discounted cash flow model to determine the 
estimated fair value of its Level 3 liabilities.  The significant assumptions used in preparing the discounted cash flow 
model included the discount rate, estimates for future incremental revenue growth and probabilities for completion 
of operational and sales milestones. 

6. PROPERTY AND EQUIPMENT 

Property and equipment consists of the following (in thousands): 

December 31, 

2010 

2011 

Building .........................................................................................................................  $  42,920 
Leasehold improvements ...............................................................................................     16,290 
Furniture, office equipment and research vehicles ........................................................     21,116 
Computer hardware and software ..................................................................................     24,354 
  104,680 
Accumulated depreciation and amortization .................................................................     (34,759) 
Property and equipment, net ..........................................................................................  $  69,921 

  $ 

  24,029 
  23,740 
  28,561 
  76,330 
  (38,759) 
  $  37,571 

Depreciation  expense  for  property  and  equipment  was  approximately  $7.6  million,  $8.6  million  and  $8.4 

million for the years ended December 31, 2009, 2010 and 2011. 

7. GOODWILL 

The changes in the carrying amount of goodwill by operating segment consist of the following (in thousands):  

United States 
Goodwill, December 31, 2009 .....................................................................  
$ 
Effect of foreign currency translation .....................................................  
Goodwill, December 31, 2010 .....................................................................  
Acquisitions ............................................................................................  
Effect of foreign currency translation .....................................................  
Goodwill, December 31, 2011 .....................................................................  

55,260 
12,205 

67,465 

55,260 

$ 

International 
25,061 
$ 
(719) 
24,342 

(23) 
24,319 

$ 

Total 

80,321 
(719) 
79,602 
12,205 
(23) 
91,784 

$ 

$ 

 The  Company  recorded  goodwill  of  approximately  $12.2  million  in  connection  with  the  October  2011 

acquisition of Virtual Premise. 

During the fourth quarters of  2010 and 2011, the Company completed the annual impairment test of goodwill 

and concluded that goodwill was not impaired. 

F-21 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

8. INTANGIBLES AND OTHER ASSETS 

Intangibles and other assets consist of the following (in thousands, except amortization period data): 

December 31, 

Capitalized product development cost ......................................................  
Accumulated amortization ........................................................................  
Capitalized product development cost, net................................................  

1,795 
(1,795) 

$ 

 2010 

Building photography ...............................................................................  
Accumulated amortization ........................................................................  
Building photography, net .........................................................................  

11,771 
(10,311) 
1,460 

Acquired database technology ..................................................................  
Accumulated amortization ........................................................................  
Acquired database technology, net............................................................  

26,034 
(22,150) 
3,884 

Acquired customer base ............................................................................  
Accumulated amortization ........................................................................  
Acquired customer base, net .....................................................................  

55,380 
(43,349) 
  12,031 

Acquired trade names and other ................................................................  
Accumulated amortization ........................................................................  
Acquired trade names and other, net .........................................................  

9,640 
(8,241) 
1,399 

Intangibles and other assets, net ................................................................  

18,774 

$ 

$ 

2011 

2,140 
(1,647) 
493 

12,031 
(11,122) 
909 

25,140 
(21,477) 
3,663 

58,576 
(45,055) 
13,521 

10,376 
(8,432) 
1,944 

$ 

20,530 

  Weighted- Average 
Amortization 
Period (in years) 

4 

5 

4 

10 

7 

Amortization  expense  for  intangibles  and  other  assets  was  approximately  $7.1  million,  $5.0  million  and  $4.4 

million for the years ended December 31, 2009, 2010 and 2011. 

In  the  aggregate,  amortization  for  intangibles  and  other  assets  existing  as  of  December  31,  2011  for  future 
periods is expected to be approximately $4.1 million, $3.2 million, $2.6 million, $2.3 million and $2.2 million for 
the years ending December 31, 2012, 2013, 2014, 2015 and 2016, respectively. 

F-22 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

9. INCOME TAXES 

The components of the provision (benefit) for income taxes attributable to operations consist of the following 

(in thousands): 

Current: 

Year Ended December 31, 
2010 

2009 

2011 

Federal ...............................................................................................  
State ...................................................................................................  
Foreign ...............................................................................................  
Total current ...........................................................................................  
Deferred: 

$  15,194 
1,593 
26 
  16,813 

Federal ...............................................................................................  
State ...................................................................................................  
Foreign ...............................................................................................  
Total deferred .........................................................................................  
Total provision for income taxes ............................................................  

(2,097) 
(199) 
(122) 
(2,418) 
$  14,395 

  $ 

7,061 
1,424 
61 
8,546 

  $  22,779 
2,226 
12 
  25,017 

1,706 
(6) 
(25) 
1,675 
  $  10,221 

  (14,661) 
(2,425) 
(18) 
  (17,104) 
7,913 

  $ 

The components of deferred tax assets and liabilities consists of the following (in thousands): 

December 31, 

2010 

2011 

Deferred tax assets: 
Reserve for bad debts .................................................................................................  $ 
Accrued compensation ...............................................................................................    
Stock compensation ...................................................................................................    
Net operating losses ...................................................................................................    
Accrued reserve..........................................................................................................    
Capital loss carryovers ...............................................................................................    
Unrealized loss on securities ......................................................................................    
Deferred rent ..............................................................................................................    
Deferred revenue ........................................................................................................    
Other non-deductible liabilities ..................................................................................    
Deferred gain from sale of building...........................................................................    

921 
3,030 
3,087 
3,365 
961 
312 
1,074 
1,546 
1,154 
226 

Total deferred tax assets ...................................................................................     15,676 

Deferred tax liabilities: 
Prepaids ......................................................................................................................    
Depreciation ...............................................................................................................    
Intangibles ..................................................................................................................    
Total deferred tax liabilities ..............................................................................    

(725) 
(2,396) 
(4,132) 
(7,253) 

  $ 

963 
3,987 
4,049 
6,129 
5,789 

1,025 
1,781 
1,180 
147 
  13,504 
  38,554 

(1,054) 
(3,546) 
(7,233) 
  (11,833) 

Net deferred tax asset .................................................................................................    
Valuation allowance ...................................................................................................    
Net deferred taxes ......................................................................................................  $ 

8,423 
(4,670) 
3,753 

  26,721 
(5,270) 
  $  21,451 

F-23 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

9. INCOME TAXES 

 (CONTINUED) 

For  the  years  ended  December  31,  2010  and  2011,  a  valuation  allowance  has  been  established  for  certain 
deferred tax assets due to the uncertainty of realization. The valuation allowance for the years ended December 31, 
2010 and 2011 includes an allowance for unrealized losses, foreign  deferred tax assets and state net operating loss 
carryforwards.  The  valuation  allowance  for  the  deferred  tax  asset  for  unrealized  losses  has  been  recorded  as  an 
adjustment  to  accumulated  other  comprehensive  loss.    For  the  year  ended  December  31,  2010,  the  valuation 
allowance also included an allowance for capital losses.   In 2011, the capital losses were used to offset the capital 
gains  resulting  from  the  Company’s  sale  of  the  office  building  located  at  1331  L  Street,  NW,  in  downtown 
Washington, DC (the ―DC Office Building‖), which sale closed on February 18, 2011.  See Note 17 for details on 
the sale of the building.  As a result of the sale, the valuation allowance for capital losses was no longer required for 
the year ended December 31, 2011. 

The  Company  established  the  valuation  allowance  because  it  is  more  likely  than  not  that  a  portion  of  the 
deferred  tax  asset  for  certain  items  will  not  be  realized  based  on  the  weight  of  available  evidence.  A  valuation 
allowance was established for the unrealized losses on securities and the capital loss carryovers as the Company has 
not  historically  generated  capital  gains,  and  it  is  uncertain  whether  the  Company  will  generate  sufficient  capital 
gains in the future to absorb the capital losses.  For the year ended December 31, 2011, the Company’s sale of the 
DC Office Building generated capital gains, but the Company does not expect to engage in similar transactions on a 
regular  basis.  The  Company  continues  to  maintain  a  valuation  allowance  as  of  December  31,  2011,  for  the 
unrealized losses on securities because it is uncertain as to whether the losses will be realized in a year such that the 
losses could be carried back to offset the gain  from the  Company’s  sale  of the  DC Office Building.    A  valuation 
allowance was established for the foreign deferred tax assets due to the uncertainty of future foreign taxable income. 
The Company has not had sufficient taxable income  historically to utilize the foreign deferred tax assets, and it is 
uncertain  whether  the  Company  will  generate  sufficient  taxable  income  in  the  future  to  utilize  the  deferred  tax 
assets.  Similarly, the Company has established a valuation allowance for net operating losses in certain states where 
it is uncertain whether the Company will generate sufficient taxable income to utilize the net operating losses before 
they expire. 

The  Company’s  change  in  valuation  allowance  was  an  increase  of  approximately  $1.7  million  for  the  year 
ended December 31, 2010 and an increase of approximately $600,000 for the year ended December 31, 2011. The 
increase  for  the  year  ended  December  31,  2011  is  primarily  due  to  the  increase  in  the  valuation  allowance  for 
foreign deferred tax assets of approximately $900,000, which was partially offset by approximately $300,000 for the 
release of the valuation allowance for the capital loss upon the Company’s sale of the DC Office Building.  

The Company had U.S. income of approximately $39.0 million, $30.2 million and $29.1 million for the years 
ended December 31, 2009, 2010 and 2011, respectively.  The Company  had foreign losses of approximately $5.9 
million, $6.7 million and $6.6 million for the years ended December 31, 2009, 2010 and 2011, respectively.   

F-24 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

9. INCOME TAXES 

 (CONTINUED) 

The Company’s provision for income taxes resulted in effective tax rates that varied from the statutory federal 

income tax rate as follows (in thousands): 

Year Ended December 31, 
2010 

2009 

2011 

Expected federal income tax provision at statutory rate.........................  
State income taxes, net of federal benefit...............................................  
Foreign income taxes, net effect ............................................................  
Stock compensation  ..............................................................................  
Increase in valuation allowance .............................................................  
Disregarded entity election ....................................................................  
Nondeductible compensation .................................................................  
Other adjustments ..................................................................................  
Income tax expense, net .........................................................................  

$  11,581 
1,778 
347 
300 
1,446 
(1,477) 
140 
280 
$  14,395 

  $ 

8,229 
1,372 
(1,688) 
289 
1,657 
(992) 
945 
409 
  $  10,221 

  $ 

  $ 

7,899 
(123) 
(961) 
(143) 
643 

448 
150 
7,913 

The Company paid approximately $19.4 million, $12.9 million, and $19.5 million in income taxes for the years 

ended December 31, 2009, 2010 and 2011, respectively. 

The  Company  has  net  operating  loss  carryforwards  for  international  income  tax  purposes  of  approximately 
$15.9 million,  which do not  expire.  The  Company has  federal net operating loss carryforwards of approximately 
$4.6 million that begin to expire in 2020 and state income tax credit carryforwards of approximately $600,000 that 
begin to expire in 2020. 

The following tables summarize the activity related to the Company’s unrecognized tax benefits (in thousands): 

Unrecognized tax benefit as of December 31, 2008 ...........................................................................  $ 
Increase for current year tax positions ............................................................................................   
Increase for prior year tax positions ................................................................................................   
Expiration of the statute of limitation for assessment of taxes ........................................................   
Unrecognized tax benefit as of December 31, 2009 ...........................................................................   
Increase for current year tax positions ............................................................................................   
Decrease for prior year tax positions ..............................................................................................   
Expiration of the statute of limitation for assessment of taxes ........................................................   
Unrecognized tax benefit as of December 31, 2010 ...........................................................................   
Increase for current year tax positions ............................................................................................   
Increase for prior year tax positions ...............................................................................................   
Expiration of the statute of limitation for assessment of taxes .......................................................   
Unrecognized tax benefit as of December 31, 2011 ...........................................................................  $ 

1,558 
69 
257 
(28) 
1,856 
70 
(116) 
(44) 
1,766 
1,243 
445 
(107) 
3,347 

F-25 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

9. INCOME TAXES 

 (CONTINUED) 

Approximately $244,000 and $1.4 million of the unrecognized tax benefit as of December 31, 2010, and 2011, 
respectively, would favorably affect the annual effective tax rate, if recognized in future periods.   During 2009, the 
Company recognized approximately $10,000 of interest benefit and $20,000 of penalties, and had total accruals of 
approximately $164,000 for interest and $54,000 for penalties as of December 31, 2009.  During 2010, the Company 
recognized  approximately  $20,000  of  interest  and  $7,000  of  penalties,  and  had  total  accruals  of  approximately 
$184,000 for interest and $61,000 for penalties as of December 31, 2010.  During 2011, the Company recognized 
approximately  $31,000  of  interest  and  $8,000  of  penalties,  and  had  total  accruals  of  approximately  $215,000  for 
interest  and  $69,000  for  penalties  as  of  December  31,  2011. The  Company  does  not  anticipate  the  amount  of  the 
unrecognized tax benefits to change significantly over the next twelve months. 

The  Company’s  federal  and  state  income  tax  returns  for  tax  years  2008  through  2010  remain  open  to 
examination.  The Company’s U.K. income tax returns for tax years 2005 through 2010 remain open to examination. 

10. COMMITMENTS AND CONTINGENCIES 

The Company  leases office  facilities and office  equipment under various noncancelable-operating leases.  The 
leases contain various renewal options. Rent expense for the years ended December 31,  2009, 2010 and 2011 was 
approximately $9.1 million, $12.0 million and $13.3 million, respectively. 

Future minimum lease payments as of December 31, 2011 are as follows (in thousands): 

2012 ......................................................................................................................................................  
$ 
2013 ......................................................................................................................................................  
2014 ......................................................................................................................................................  
2015 ......................................................................................................................................................  
2016 ......................................................................................................................................................  
2017 and thereafter ................................................................................................................................  

$ 

13,420 
11,055 
9,151 
8,882 
8,912 
72,854 
124,274 

On  April  27,  2011,  the  Company  signed  a  definitive  agreement  to  acquire  LoopNet,  Inc.  (―LoopNet‖) 
(NASDAQ: LOOP).  Pursuant to the merger agreement, (a) each outstanding share of LoopNet common stock will 
be  converted  into  a  unit  consisting  of  (i) $16.50  in  cash  (the  ―Cash  Consideration‖),  without  interest  and 
(ii) 0.03702 shares of CoStar common stock (the ―Stock Consideration‖), and (b) each outstanding share of Series A 
Preferred  Stock  will  be  converted  into  a  unit  consisting  of  (i) the  product  of  148.80952  multiplied  by  the  Cash 
Consideration and (ii) the product of 148.80952 multiplied by the Stock Consideration, representing a total equity 
value  of  approximately  $860.0  million  and  an  enterprise  value  of  $762.0  million  as  of  April  27,  2011.  The 
transaction is subject to customary closing conditions, including antitrust clearance. The holders of a majority of the 
outstanding shares of LoopNet’s common stock and Series A Preferred Stock, voting together as a single class on an 
as-converted basis, approved the adoption of the  merger agreement on July 11, 2011. The Company engaged J.P. 
Morgan Securities LLC (―J.P. Morgan‖) to act as its financial advisor in connection with the acquisition.  On April 
27, 2011, CoStar received a commitment letter from J.P. Morgan Bank for a fully committed term loan of $415.0 
million and a $50.0 million revolving credit facility, of which $37.5 million are committed, which will be available, 
subject to customary conditions, to fund the acquisition and the ongoing working capital needs of the Company and 
its  subsidiaries  following  the  transaction.    See  Note  20  for  additional  information  regarding  the  financing 
commitment from J.P. Morgan Bank and the credit facility entered into subsequent to December 31, 2011.   

F-26 

 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

10. COMMITMENTS AND CONTINGENCIES 

 (CONTINUED) 

The  Company  is  obligated  to  pay  $4.0  million  to  J.P.  Morgan  if  the  acquisition  closes.      Completion  of  the 
merger remains subject to the expiration or termination of the waiting period under the Hart-Scott-Rodino Antitrust 
Improvement Act of 1976 (the ―HSR Act‖) and other customary closing conditions.  As of December 31, 2011, the 
parties have not yet reached agreement  with the Federal Trade Commission (the ―FTC‖) on the terms of a consent 
order  with  the  FTC,  and  there  can  be  no  assurance  that  such  agreement  will  be  reached  in  a  timely  manner  or  at 
all.   See Note 20 for further details on the  waiting period imposed by the HSR Act and discussions with the FTC 
that occurred subsequent to December 31, 2011.  

In certain circumstances set forth in the merger agreement, if the merger is not consummated or the agreement 
is  terminated,  LoopNet  may  be  obligated  to  pay  the  Company  a  termination  fee  of  $25.8  million.    Similarly,  in 
certain  circumstances  set  forth  in  the  merger  agreement,  if  the  merger  is  not  consummated  or  the  agreement  is 
terminated,  the  Company  may  be  obligated  to  pay  LoopNet  a  termination  fee  of  $51.6  million.    See  Note  19  for 
further  details  on  the  pending  acquisition  and  Notes  19  and  20  for  additional  information  regarding  the  waiting 
period imposed by the HSR Act. 

In May 2011, LoopNet, the Board of Directors of LoopNet (―the  LoopNet Board‖) and/or the Company were 
named as defendants in three purported class action lawsuits brought by alleged LoopNet stockholders challenging 
LoopNet’s  proposed  merger  with  the  Company.  The  stockholder  actions  allege,  among  other  things,  that  (i) each 
member of the LoopNet Board breached his fiduciary duties to LoopNet and its stockholders in authorizing the sale 
of LoopNet to the Company, (ii) the merger does not maximize  value to LoopNet stockholders, (iii) LoopNet and 
the  Company  have  made  incomplete  or  materially  misleading  disclosures  about  the  proposed  transaction  and 
(iv) LoopNet  and  the  Company  aided  and  abetted  the  breaches  of  fiduciary  duty  allegedly  committed  by  the 
members  of  the  LoopNet  Board.  The  stockholder  actions  seek  class  action  certification  and  equitable  relief, 
including an injunction against consummation of the merger. The parties have stipulated to the consolidation of the 
actions,  and to permit  the  filing of a consolidated complaint.   In June 2011,  counsel for  the parties  entered into a 
memorandum  of  understanding  in  which  they  agreed  on  the  terms  of  a  settlement  of  this  litigation,  which  could 
result in a loss to the Company of  approximately $100,000.  The proposed settlement is conditioned upon, among 
other  things,  the  execution  of  an  appropriate  stipulation  of  settlement,  consummation  of  the  merger  and  final 
approval of the proposed settlement by the court. 

Currently,  and  from  time  to  time,  the  Company  is  involved  in  litigation  incidental  to  the  conduct  of  its 
business.  In accordance with GAAP, the Company records a provision for a liability when it is both probable that a 
liability has been incurred and the amount can be reasonably estimated.  At the present time, while it is reasonably 
possible  that  an  unfavorable  outcome  may  occur  as  a  result  of  one  or  more  of  the  Company’s  current  litigation 
matters,  management  has  concluded  that  it  is  not  probable  that  a  loss  has  been  incurred  in  connection  with  the 
Company’s  current  litigation  other  than  as  described  above.  In  addition,  other  than  as  described  above,  the 
Company is unable to estimate the possible loss or range of loss that could result from an unfavorable outcome in 
the Company’s current litigation and accordingly, the Company has not recognized any liability in the consolidated 
financial statements for unfavorable results, if any, other than described above. Legal defense costs are expensed as 
incurred. 

F-27 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

11.  SEGMENT REPORTING 

The  Company  manages  its  business  geographically  in  two  operating  segments,  with  the  primary  areas  of 
measurement  and  decision-making  being  the  U.S.  and  International,  which  includes  the  U.K.  and  France.  The 
Company’s subscription-based information services, consisting primarily of  CoStar Property Professional®, CoStar 
Tenant®,  CoStar  COMPS  Professional®,  and  FOCUSTM  services,  currently  generate  approximately  94%  of  the 
Company’s  total  revenues.  CoStar  Property  Professional,  CoStar  Tenant,  and  CoStar  COMPS  Professional  are 
generally  sold  as  a  suite  of  similar  services  and  comprise  the  Company’s  primary  service  offering  in  the  U.S. 
operating  segment.    FOCUS  is  the  Company’s  primary  service  offering  in  the  International  operating  segment. 
Management  relies  on  an  internal  management  reporting  process  that  provides  revenue  and  operating  segment 
EBITDA,  which  is  the  Company’s  net  income  before  interest,  income  taxes,  depreciation  and  amortization. 
Management  believes  that  operating  segment  EBITDA  is  an  appropriate  measure  for  evaluating  the  operational 
performance  of  the  Company’s  operating  segments.    EBITDA  is  used  by  management  to  internally  measure 
operating  and  management  performance  and  to  evaluate  the  performance  of  the  business.  However,  this  measure 
should be considered in addition to, not as a substitute for or superior to, income from operations or other measures 
of financial performance prepared in accordance with GAAP.   

Summarized information by operating segment was as follows (in thousands): 

Year Ended December 31, 
2010 

2009 

2011 

Revenues 
United States ..............................................................................................................  
International 

$  191,556 

  $  208,463 

External customers .................................................................................................  
Intersegment revenue .............................................................................................  
Total international revenue ........................................................................................  
Intersegment eliminations ..........................................................................................  
Total revenues ........................................................................................................  

  18,103 
898 
  19,001 
(898) 
$  209,659 

    17,797 
1,266 
    19,063 
(1,266) 
  $  226,260 

EBITDA 
United States ..............................................................................................................  
International ...............................................................................................................  
Total EBITDA .......................................................................................................  

47,697 
  (1,186) 
46,511 

$ 

$ 

  $ 

  $ 

39,607 
(3,183) 
36,424 

Reconciliation of EBITDA to net income 
EBITDA ....................................................................................................................  
Purchase amortization in cost of revenues .................................................................  
Purchase amortization in operating expenses ............................................................  
Depreciation and other amortization..........................................................................  
Interest income, net....................................................................................................  
Income tax expense, net .............................................................................................  
Net income .............................................................................................................  

$  46,511 
  (2,389) 
  (3,412) 
  (8,875) 
1,253 
 (14,395) 
18,693 

$ 

  $ 

36,424 
(1,471) 
(2,305) 
(9,873) 
735 
    (10,221) 
13,289 

  $ 

 $  233,381 

    18,357 
1,140 
    19,497 
(1,140) 
 $  251,738 

 $ 

 $ 

 $ 

 $ 

38,099 
(3,476) 
34,623 

34,623 
(1,353) 
(2,237) 
(9,262) 
798 
(7,913) 
14,656 

Intersegment  revenue  is  attributable  to  services  performed  for  the  Company’s  wholly  owned  subsidiary, 
Property and Portfolio Research, Inc. (―PPR‖), by Property and Portfolio Research Ltd., a wholly owned subsidiary 
of  PPR.    Intersegment  revenue  is  recorded  at  an  amount  the  Company  believes  approximates  fair  value.    U.S. 
EBITDA includes a corresponding cost for the services performed by Property and Portfolio Research Ltd. for PPR.   

F-28 

 
 
 
 
 
 
  
  
 
 
 
 
   
 
  
 
 
   
   
 
   
   
  
 
 
   
 
   
 
 
 
   
 
   
 
   
   
  
 
 
   
 
   
 
 
 
   
 
   
 
   
   
   
   
   
   
 
   
   
   
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

11.  SEGMENT REPORTING  (CONTINUED) 

International EBITDA includes a corporate allocation of approximately  $500,000, $400,000 and $800,000 for 
the years ended December 31, 2009, 2010 and 2011, respectively.  The corporate allocation represents costs incurred 
for  U.S.  employees  involved  in  management  and  expansion  activities  of  the  Company’s  International  operating 
segment. 

Summarized information by operating segment consists of the following (in thousands): 

December 31, 

2010 

2011 

Property and equipment, net 
United States ................................................................................................................  $ 
International .................................................................................................................   
Total property and equipment, net ...........................................................................  $ 

Goodwill 
United States ................................................................................................................  $ 
International .................................................................................................................    
Total goodwill ..........................................................................................................  $ 

67,076 
2,845 
69,921 

55,260 
24,342 
79,602 

Assets 
United States ................................................................................................................  $ 
International .................................................................................................................    
Total operating segment assets .................................................................................  $ 

469,449 
39,038 
508,487 

Reconciliation of operating segment assets to total assets 
Total operating segment assets ....................................................................................  $ 
Investment in subsidiaries............................................................................................    
Intercompany receivables ............................................................................................    
Total assets ...............................................................................................................  $ 

508,487 
(18,344)  
(50,495) 
439,648 

Liabilities 
United States ................................................................................................................  $ 
International .................................................................................................................   
Total operating segment liabilities ...........................................................................  $ 

52,482 
47,944 
100,426 

Reconciliation of operating segment liabilities to total liabilities 
Total operating segment liabilities ...............................................................................  $ 
Intercompany payables ................................................................................................   
Total liabilities .........................................................................................................  $ 

100,426 
(42,280) 
58,146 

 $ 

 $ 

 $ 

 $ 

 $ 

 $ 

 $ 

 $ 

 $ 

 $ 

 $ 

 $ 

35,044 
2,527 
37,571 

67,465 
24,319 
91,784 

808,930 
38,061 
846,991 

846,991 
(18,344) 
(57,612) 
771,035 

107,776 
53,221 
160,997 

160,997 
(49,139) 
111,858 

F-29 

 
 
 
 
 
  
  
 
 
 
   
 
   
  
 
 
   
 
 
 
   
 
   
 
 
 
   
 
 
 
   
 
   
  
 
 
   
 
 
 
   
 
   
   
 
 
 
  
 
 
 
  
 
  
  
 
 
  
 
 
 
  
 
  
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

12.  STOCKHOLDERS’ EQUITY  

Preferred Stock 

The Company has 2,000,000 shares of preferred stock, $0.01 par value, authorized for issuance. The Board of 

Directors may issue the preferred stock from time to time as shares of one or more classes or series. 

Common Stock 

The  Company  has  30,000,000  shares  of  common  stock,  $0.01  par  value,  authorized  for  issuance.  Dividends 
may be declared and paid on the common stock, subject in all cases to the rights and preferences of the holders of 
preferred  stock  and  authorization  by  the  Board  of  Directors.  In  the  event  of  liquidation  or  winding  up  of  the 
Company  and  after  the  payment  of  all  preferential  amounts  required  to  be  paid  to  the  holders  of  any  series  of 
preferred stock, any remaining funds shall be distributed among the holders of the issued and outstanding common 
stock. 

13.  NET INCOME PER SHARE 

The following table sets forth the calculation of basic and diluted net income per share (in thousands except per 

share data): 

Numerator: 

Year Ended December 31, 
2010 

2011 

2009 

Net income .........................................................................................  $  18,693 

  $  13,289 

  $  14,656 

Denominator: 

Denominator for basic net income per share 

 weighted-

average outstanding shares .............................................................  

19,780 

20,330 

23,131 

Effect of dilutive securities: 

Stock options and restricted stock ......................................................   
Denominator for diluted net income per share 

 weighted-

145 

377 

396 

average outstanding shares .............................................................  

19,925 

20,707 

23,527 

Net income per share 

Net income per share 

 basic ...............................................................  $ 
 diluted .............................................................  $ 

0.95 

0.94 

  $ 

  $ 

0.65 

0.64 

  $ 

  $ 

0.63 
0.62 

Stock  options  to  purchase  approximately  483,800,  167,000  and  2,300  shares  that  were  outstanding  as  of 
December 31, 2009, 2010 and 2011, respectively, were not included in the computation of diluted earnings per share 
because the exercise price of the stock options was greater than the average share price of the common shares during 
the period and, therefore, the effect would have been anti-dilutive. 

F-30 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

14. EMPLOYEE BENEFIT PLANS 

Stock Incentive Plans  

In June 1998, the Company’s Board of Directors adopted the 1998 Stock Incentive Plan (as amended, the ―1998 
Plan‖)  prior  to  consummation  of  the  Company’s  initial  public  offering.    In  April  2007,  the  Company’s  Board  of 
Directors  adopted  the  CoStar  Group,  Inc.  2007  Stock  Incentive  Plan  (as  amended,  the  ―2007  Plan‖),  subject  to 
stockholder approval, which was obtained on June 7, 2007.  All shares of common stock that were authorized for 
issuance  under  the  1998  Plan  that,  as  of  June  7,  2007,  remained  available  for  issuance  under  the  1998  Plan 
(excluding shares subject to outstanding awards)  were rolled into the 2007 Plan and, as of that date, no  shares of 
common stock were available under the 1998 Plan.  The 1998 Plan continues to govern unexercised and unexpired 
awards issued under the 1998 Plan prior to June 7, 2007.  The 1998 Plan provided for the grant of stock and stock 
options to officers, directors and employees of the  Company and its subsidiaries. Stock options granted under the 
1998 Plan could be incentive or non-qualified. The exercise price for an incentive stock option may not be less than 
the fair market value of the Company’s common stock on the date of grant.  The vesting period of the options and 
restricted stock  grants  was determined by the Board of Directors and  was  generally  three to four  years. Upon the 
occurrence of a Change of Control, as defined in the 1998 Plan, all outstanding unexercisable options and restricted 
stock grants under the 1998 Plan immediately become exercisable. 

The  2007  Plan  provides  for  the  grant  of  stock  options,  restricted  stock,  restricted  stock  units,  and  stock 
appreciation  rights  to  officers,  employees,  directors  and  consultants  of  the  Company  and  its  subsidiaries.  Stock 
options  granted  under  the  2007  Plan  may  be  non-qualified  or  may  qualify  as  incentive  stock  options.  Except  in 
limited circumstances related to a merger or other acquisition, the exercise price for an option may not be less than 
the fair market value of the Company’s common stock on the date of grant.  The vesting period for each grant of 
options, restricted stock, restricted stock units and stock appreciation rights under the 2007 Plan is determined by the 
Board of Directors and is generally three to four years, subject to minimum vesting periods for restricted stock and 
restricted  stock  units  of  at  least  one  year.  The  Company  has  reserved  the  following  shares  of  common  stock  for 
issuance  under  the  2007  Plan  (including  an  increase  of  1,300,000  shares  of  common  stock  pursuant  to  an 
amendment  to  the  2007  Plan  approved  by  the  Company’s  stockholders  on  June  2,  2010):  (a)  2,300,000  shares  of 
common stock, plus (b) 121,875 shares of common stock that were authorized for issuance under the 1998 Plan that, 
as of June 7, 2007, remained available for issuance under the 1998 Plan (not including any Shares that were subject 
as  of  such  date  to  outstanding  awards  under  the  1998  Plan),  and  (c)  any  shares  of  common  stock  subject  to 
outstanding awards under the 1998 Plan as of June 7, 2007, that on or after such date  cease  for any reason to be 
subject to such awards (other than by reason of exercise or settlement of the awards to the extent they are exercised 
for or settled in vested and nonforfeitable shares). Unless terminated sooner, the 2007 Plan will terminate in April 
2017, but will continue to govern unexercised and unexpired awards issued under the 2007 Plan prior to that date.  
Approximately  1.9  million  and  1.3  million  shares  were  available  for  future  grant  under  the  2007  Plan  as  of 
December 31, 2010 and 2011, respectively. 

F-31 

 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

14. EMPLOYEE BENEFIT PLANS 

  (CONTINUED) 

Stock Incentive Plans 

 (Continued) 

Option activity was as follows:   

Number of 
Shares 

Range of 
Exercise Price 

Weighted- 
Average 
Remaining 
Contract 
Life (in 
years) 

Weighted- 
Average 
Exercise 
Price 

Aggregate 
Intrinsic 
Value 
(in thousands) 

Outstanding at December 31, 2008 ...............  
Granted ....................................................  
Exercised .................................................  
Canceled or expired .................................  

$16.20 - $55.07 
815,586 
267,756    $25.00 - $40.13   
(85,228)    $17.35 - $36.38   
(44,818)    $30.06 - $46.81   

Outstanding at December 31, 2009 ...............  
Granted ....................................................  
Exercised .................................................  
Canceled or expired .................................  

$16.20 - $55.07 
953,296 
160,892    $40.06 - $54.51   
(137,724)    $16.20 - $45.18   
(30,768)    $18.31 - $44.86   

Outstanding at December 31, 2010 ...............  
Granted ....................................................  
Exercised .................................................  
Canceled or expired .................................  

$17.34 - $55.07 
945,696 
111,470    $57.16 - $60.23   
(198,132)    $17.97 - $54.51   
(11,932)    $36.48 - $54.51   

$33.98 
$31.05 
$26.20 
$39.40 

$33.60 
$43.49 
$27.01 
$37.83 

$36.10 
$57.28 
$31.37 
$40.65 

Outstanding at December 31, 2011 ...............  

847,102 

$17.34 - $60.23 

$39.93 

5.72 

$22,701 

Exercisable at December 31, 2009 ................  

650,063 

$16.20 - $55.07 

$33.60 

Exercisable at December 31, 2010 ................  

609,274 

$17.34 - $55.07 

$35.21 

Exercisable at December 31, 2011 ................  

558,849 

$17.34 - $55.07 

$37.15 

4.35 

$16,531 

The aggregate intrinsic value is calculated as the difference between (i) the closing price of the common stock at 
December 31, 2009, 2010 and 2011 and (ii) the exercise prices of the underlying awards, multiplied by the shares 
underlying options as of December 31, 2009, 2010 and 2011, that had an exercise price less than the closing price on 
that date. Options to purchase 85,228, 137,724 and 198,132 shares were exercised for the years ended December 31, 
2009, 2010, and 2011, respectively.  The aggregate intrinsic value of options exercised, determined as of the date of 
option exercise, was $1.2 million, $2.5 million and $6.1 million for the years ended December 31, 2009, 2010, and 
2011, respectively. 

At  December  31,  2011,  there  was  $14.2  million  of  unrecognized  compensation  cost  related  to  stock-based 

payments, net of forfeitures, which is expected to be recognized over a weighted-average-period of 2.5 years. 

F-32 

 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

14. EMPLOYEE BENEFIT PLANS 

 (CONTINUED) 

Stock Incentive Plans 

 (Continued) 

The weighted-average grant date fair value of each option granted during the years ended December 2009, 2010 

and 2011 using the Black-Scholes option-pricing model was $12.72, $16.54 and $21.57 respectively. 

The  Company  estimated  the  fair  value  of  each  option  granted  on  the  date  of  grant  using  the  Black-Scholes 

option-pricing model, using the assumptions noted in the following table: 

Year Ended December 31, 
2010 

2011 

2009 

Dividend yield ........................................................................................   0% 
Expected volatility .................................................................................   43% 
Risk-free interest rate .............................................................................  2.2% 
Expected life (in years) ..........................................................................   5 

0% 
40% 
2.2% 
5 

0% 
40% 
2.2% 
5 

The  assumptions  above  and  the  estimation  of  expected  forfeitures  are  based  on  multiple  facts,  including 
historical  employee  behavior  patterns  of  exercising  options  and  post-employment  termination  behavior,  expected 
future employee option exercise patterns, and the historical volatility of the Company’s stock price. 

The following table summarizes information regarding options outstanding at December 31, 2011:    

Options Outstanding 
Weighted-
Average 
Remaining 
Contractual Life 
(in years) 
0.79 
7.17 
1.71 
4.76 
3.39 
8.19 
5.35 
5.63 
9.17 
9.18 
5.72 

Weighted-
Average 
Exercise Price 
$20.68 
$25.00 
$28.76 
$38.10 
$39.82 
$42.29 
$44.12 
$52.25 
$57.16 
$58.63 
$39.93 

Options Exercisable 

Number of 
Shares 
45,400 
74,810 
85,290 
113,470 
17,221 
31,698 
104,667 
86,293 

Weighted-
Average 
Exercise Price 
$20.68 
$25.00 
$28.76 
$38.41 
$39.74 
$42.29 
$44.24 
$51.97 

558,849 

$37.15 

Range of 
Exercise Price 
$17.34 - $23.08 
$25.00 - $25.00 
$28.15 - $30.06 
$36.48 - $39.00 
$39.53 - $42.10 
$42.29 - $42.29 
$42.71 - $44.86 
$45.18 - $55.07 
$57.16 - $57.16 
$58.06 - $60.23 
$17.34 - $60.23 

Number 
of Shares   
45,400  
117,379  
85,290  
149,763  
21,597  
102,767  
116,596  
96,840  
102,700  
8,770  
847,102  

F-33 

 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

14. EMPLOYEE BENEFIT PLANS 

 (CONTINUED) 

Stock Incentive Plans 

 (Continued) 

The following table presents unvested restricted stock awards activity for the year ended December 31, 2011: 

Number 
of 
Shares 
Unvested restricted stock at December 31, 2010 .........................................   314,374 
Granted ...................................................................................................   196,827 
Vested .....................................................................................................   (122,144)   
(22,466)   
Canceled .................................................................................................  

Unvested restricted stock at December 31, 2011 .........................................   366,591 

Weighted-Average 
Grant Date 
Fair Value per Share 
$39.09 
$60.91 
$39.16 
$43.37 
$50.52 

Employee 401(k) Plan  

The Company maintains a 401(k) Plan (the ―401(k)‖) as a defined contribution retirement plan for all eligible 
employees.  The 401(k) provides for tax-deferred contributions of employees’ salaries, limited to a maximum annual 
amount  as  established  by  the  Internal  Revenue  Service.    In  2009,  2010  and  2011,  the  Company  matched  50%  of 
employee contributions up to a maximum of 6% of total compensation.   Amounts contributed to the 401(k) by the 
Company  to  match  employee  contributions  for  the  years  ended  December  31,  2009,  2010  and  2011  were 
approximately $1.4 million, $1.5 million and $1.9 million, respectively. The Company did not have administrative 
expenses in connection with the 401(k) plan for the years ended December 31, 2009, 2010 and 2011, respectively. 

Employee Pension Plan 

The  Company  maintains  a  company  personal  pension  plan  for  all  eligible  employees  in  the  Company’s  U.K. 
offices.  The  plan  is  a  defined  contribution  plan.  Employees  are  eligible  to  contribute  a  portion  of  their  salaries, 
subject  to  a  maximum  annual  amount  as  established  by  the  Inland  Revenue.  The  Company  contributes  a  match 
subject to the percentage of the employees’ contribution. Amounts contributed to the plan by the Company to match 
employee  contributions  for  the  years  ended  December  31,  2009,  2010  and  2011  were  approximately  $130,000, 
$160,000 and $160,000, respectively. 

Employee Stock Purchase Plan  

As of August 1, 2006, the Company introduced an Employee Stock Purchase Plan (―ESPP‖), pursuant to which 
eligible  employees  participating  in  the  plan  authorize  the  Company  to  withhold  specified  amounts  from  the 
employees’ compensation and use the withheld amounts to purchase shares of the Company's common stock at 90% 
of the market price. Participating employees are able to purchase common stock under this plan during the offering 
period. The offering period begins the second Saturday before each of the Company’s regular pay dates and ends on 
each of the Company’s regular pay dates.   There  were  64,106  and 56,339 shares available for purchase under the 
ESPP as of December 31, 2010 and 2011, respectively and approximately 8,100 and 7,800 shares of the Company’s 
common stock were purchased under the ESPP during 2010 and 2011, respectively. 

15. LEASE RESTRUCTURING CHARGES 

Effective  September 24,  2010,  the  Company  consolidated  its  three  facilities  located  in  the  Boston, 
Massachusetts area, including the facilities used by  CoStar, PPR, and Resolve Technology, into one  facility.  The 
consolidation  of  the  facilities  resulted  in  a  lease  restructuring  charge  of  approximately  $1.3 million  recorded  in 
general and administrative expense in the third quarter of 2010. The third quarter lease restructuring charge included 
amounts for the abandonment of certain lease space  as well as the impairment of leasehold improvements totaling 
approximately $100,000.   

F-34 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

15. LEASE RESTRUCTURING CHARGES 

 (CONTINUED) 

Effective  July  18,  2011,  the  Company  consolidated  its  White  Marsh,  Maryland  office  with  its  Columbia, 
Maryland and Washington, DC offices.  The consolidation of the facility resulted in a lease restructuring charge of 
approximately $1.5 million recorded in  general and administrative expense  in  the third  quarter of 2011. The third 
quarter  lease  restructuring  charge  included  amounts  for  the  abandonment  of  certain  lease  space  as  well  as  the 
impairment of leasehold improvements, furniture and other equipment totaling approximately $500,000.   

The  amount  of  the  lease  restructuring  charges  recorded  were  based  upon  management’s  best  estimate  of 
amounts and timing of certain events that are expected to occur in the future. It is possible that the actual outcome of 
these events may differ from estimates.  The Company reassesses the expected cost to complete the consolidation of 
the  facilities  at  the  end  of  each  reporting  period  and  adjusts  the  restructuring  accrual  as  necessary  to  reflect  any 
changes.    As  a  result  of  reassessments,  for  the  year  ended  December  31,  2011,  an  adjustment  of  approximately 
$195,000 was recorded due to changes in the Company’s assumed sublease income over the remaining lease term.   
The Company did not record an adjustment to the initial lease restructuring charges for the years ended December 
31,  2009  and  2010,  respectively.    Any  future  changes  will  be  made  to  the  restructuring  accrual  when  any  such 
differences become determinable. 

The following table summarizes the amount included in accrued expenses related to these restructuring charges 

from December 31, 2009 to December 31, 2011 (in thousands):    

Lease 
Restructuring 
Accrual 

Accrual balance at December 31, 2009  ......................................................................................................  $ 
Original charge for Boston offices .........................................................................................................  
Rent payments made in 2010 .................................................................................................................  
Accrual balance at December 31, 2010 .......................................................................................................  
Original charge for White Marsh office .................................................................................................   
Rent payments made in 2011 .................................................................................................................   
Adjustment for assumed sublease income and accretion in 2011 ..........................................................  
Accrual balance at December 31, 2011 .......................................................................................................  $ 

1,160 
(229) 
931 
959 
(1,319) 
262 
833 

16. PURCHASE OF BUILDING 

In February 2010, the Company purchased a 169,429 square-foot office building located at 1331 L Street, NW 
in  downtown  Washington,  DC  together  with  the  tenancy  in  the  underlying  ground  lease  for  the  property  for  a 
purchase price of $41.25 million in cash. This facility is being used primarily by the Company’s U.S. segment. The 
Company began relocating its Bethesda-based employees and infrastructure to the new building starting in July 2010 
and completed its relocation by October 15, 2010.  

In connection with the purchase of the building, the Company assumed the ground lease for the parcel of land 
under the building. The lease, which expires February 29, 2088, requires the payment of minimum annual rent of 
$778,000 through February 29, 2012, then approximately $918,000 annually through February 29, 2024. Thereafter, 
the minimum rate is adjusted to fair market value, as defined in the lease, once every 7 years.   

The  purchase  of  the  building  was  accounted  for  as  an  asset  acquisition.    The  total  purchase  price  of  $41.25 
million,  plus  $1.7  million  of  direct  transaction  costs  was  allocated  to  the  building.    No  other  significant  assets  or 
liabilities were acquired in this transaction.  See Note 17 for further details on the subsequent sale of the building in 
February 2011. 

F-35 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

17. SALE OF BUILDING 

On February 2, 2011, 1331 L Street Holdings, LLC (―Holdings‖), a wholly owned subsidiary of  the Company, 
and GLL L-Street 1331, LLC (―GLL‖), an affiliate of Munich-based GLL Real Estate Partners GmbH, entered into 
a  purchase  and  sale  agreement  pursuant  to  which  (i)  Holdings  agreed  to  sell  to  GLL  its  interest  in  the  169,429 
square-foot  office  building  located  at  1331  L  Street,  NW,  in  downtown  Washington,  DC,  and  (ii)  CoStar  Realty 
Information,  Inc.  (―CoStar  Realty‖),  a  wholly  owned  subsidiary  of  the  Company,  agreed  to  enter  into  a  lease 
expiring  May  31,  2025  with  GLL  to  lease  back  149,514  square  feet  of  the  office  space  located  in  this  building, 
which the Company continues to use as its corporate headquarters.   The closing of the sale took place on February 
18, 2011. The aggregate consideration paid by GLL to Holdings pursuant to the  purchase and sale agreement  was 
$101.0  million  in  cash,  $15.0  million  of  which  was  designated  to  fund  additional  build-out  and  planned 
improvements at the building.  Approximately $12.5 million of the $15.0 million additional build-out is recorded as 
a leasehold improvement in property and equipment.  The carrying value of the building at the time of the sale was 
approximately $47.5 million. Pursuant to the purchase and sale agreement, Holdings entered into an assignment and 
assumption agreement with GLL regarding the existing ground lease. 

The  office  lease  will expire  May 31, 2025. The initial base  rent  is $38.50 per square foot of occupied space, 
escalating 2.5% per year commencing June 1, 2011.  Minimum lease payments will be approximately $6.0 million, 
$6.1 million, $6.3 million, $6.4 million and $6.6 million for fiscal years 2012 through 2016, respectively, and a total 
of $62.6 million from 2017 to the end of the lease term. 

The transaction qualified for sale-leaseback accounting under an operating lease as all of the risks and rewards 
of ownership  were transferred to the buyer upon closing of the transaction and the leaseback arrangement did not 
include  any  form  of  continuing  involvement,  other  than  a  normal  leaseback.    The  $36.0  million  gain  on  sale  has 
been deferred and is being recorded as a reduction in rent expense over the term of the lease in accordance with the 
accounting guidance for sale-leaseback transactions.  The Company recorded approximately $2.2 million from the 
gain  on  sale  for  the  year  ended  December  31,  2011.    The  closing  costs  incurred  in  connection  with  the  sale-
leaseback agreement were approximately $2.4 million, primarily due to legal costs, broker commissions and transfer 
costs which were recorded as a reduction to the gain in the first quarter of 2011.   

18. EQUITY OFFERING 

During June 2011, the Company completed an equity offering of 4,312,500 shares of common stock for $60.00 
per share.  Net proceeds from the equity offering were approximately $247.9 million, after deducting approximately 
$10.4 million of underwriting discounts and commissions and offering expenses of approximately $500,000.  The 
Company intends to use the net proceeds from the sale of the securities to fund a portion of the cash consideration 
payable in connection with its acquisition of LoopNet and, to the extent that any proceeds remain thereafter, or the 
acquisition is not completed, for  general corporate purposes. General corporate purposes may include additions to 
working  capital,  capital  expenditures,  investments  in  the  Company’s  subsidiaries,  possible  acquisitions  and  the 
repurchase, redemption or retirement of securities, including the Company’s common stock. The net proceeds may 
be temporarily invested or applied to repay short-term or revolving debt prior to use.   

F-36 

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

19. PENDING ACQUISITION 

On April 27, 2011, the Company signed a definitive agreement to acquire LoopNet, Inc. Pursuant to the merger 
agreement,  (a)  each  outstanding  share  of  LoopNet  common  stock  will  be  converted  into  a  unit  consisting  of 
(i) $16.50 in cash, without interest and (ii) 0.03702 shares of CoStar common stock, and (b) each outstanding share 
of Series A Preferred Stock will be converted into a unit consisting of (i) the product of 148.80952 multiplied by the 
Cash  Consideration  and  (ii) the  product  of  148.80952  multiplied  by  the  Stock  Consideration,  representing  a  total 
equity value of approximately $860.0 million and an enterprise value of $762.0 million as of April 27, 2011. The 
boards of directors of both companies have unanimously approved the transaction, and the holders of a majority of 
the outstanding shares of LoopNet’s common stock and Series A Preferred Stock, voting together as a single class 
on an as-converted basis, approved the adoption of the merger agreement on July 11, 2011.  The transaction remains 
subject  to  customary  closing  conditions,  including  antitrust  clearance.    On  April  27,  2011,  CoStar  received  a 
commitment letter  from J.P. Morgan Bank  for a  fully committed term loan of $415.0 million and a $50.0 million 
revolving  credit  facility,  of  which  $37.5  million  are  committed,  which  will  be  available,  subject  to  customary 
conditions,  to  fund  the  acquisition  and  the  ongoing  working  capital  needs  of  the  Company  and  its  subsidiaries 
following  the  transaction.    As  a  result  of  the  pending  LoopNet  acquisition,  the  Company  recorded  approximately 
$14.2  million  in  acquisition-related  costs  in  general  and  administrative  expense  for  the  year  ended  December  31, 
2011.  See Note 20 for additional information regarding the financing commitment from J.P. Morgan Bank and the 
credit facility entered into subsequent to December 31, 2011.   

As previously disclosed in the proxy statement/prospectus dated June 6, 2011, both the Company and LoopNet 
filed notification and report forms with the Department of Justice and the Federal Trade Commission (the ―FTC‖) 
pursuant  to  the  Hart-Scott-Rodino  Antitrust  Improvement  Act  of  1976  (the  ―HSR  Act‖),  on  May 31,  2011.  As  a 
result,  the  waiting  period  under  the  HSR  Act  with  respect  to  the  proposed  merger  between  the  Company  and 
LoopNet was scheduled to expire on June 30, 2011.  As previously reported in a Current Report on Form 8-K, on 
June 30, 2011, CoStar and LoopNet each received a request for additional information (commonly referred to as a 
―second request‖) from the FTC with respect to the proposed merger of Lonestar Acquisition Sub, Inc., a wholly-
owned subsidiary of CoStar, and LoopNet (the ―merger‖).  At the FTC’s request, CoStar and LoopNet subsequently 
agreed  to  extend  the  waiting  period  imposed  by  the  HSR  Act  from  30  to  60  days  after  the  date  of  substantial 
compliance with the second request unless that period is extended voluntarily by the parties or terminated sooner by 
the FTC.   On November 4, 2011, each of the Company and LoopNet certified as to its substantial compliance with 
the second request.  Completion of the merger remains subject to the expiration or termination of the waiting period 
under  the  HSR  Act  and  other  customary  closing  conditions.  See  Note  20  for  further  details  on  the  status  of  the 
pending acquisition and the waiting period imposed by the HSR Act subsequent to December 31, 2011.   

The  transaction  is  not  subject  to  a  financing  condition.    In  certain  circumstances  set  forth  in  the  merger 
agreement, if the merger is not consummated or the agreement is terminated, LoopNet may be obligated to pay the 
Company a termination fee of $25.8 million.  Similarly, in certain circumstances set forth in the merger agreement, 
if the merger is not consummated or the agreement is terminated, the Company may be obligated to pay LoopNet a 
termination fee of $51.6 million.  The Company is not in a position yet to estimate the financial impact the proposed 
merger will have on its operations.   

20. SUBSEQUENT EVENTS 

As previously disclosed on January 3, 2012, the Company and LoopNet voluntarily agreed to further extend the 
waiting period imposed by the HSR Act on a 45-day rolling basis to allow them to engage in discussions with the 
FTC to determine whether there is a possible basis for, and to discuss the possible terms of, a mutually acceptable 
consent  order  that  would  allow  the  merger  to  close.  On  January  31,  2012,  the  Company  and  LoopNet  mutually 
agreed  to  extend  the  date  after  which  either  party  may  individually  elect  to  terminate  the  merger  agreement  from 
January 31, 2012 to April 30, 2012.  As of December 31, 2011, the parties have not yet reached agreement with the 
FTC on the terms of such a consent order, and there can be no assurance that such agreement will be reached in a 
timely manner or at all.  Completion of the merger remains subject to the expiration or termination of the  waiting 
period  under  the  HSR  Act  and  other  customary  closing  conditions.   As  of  December  31,  2011,  discussions  are 
ongoing  with  the  FTC  and  neither  the  Company  and  LoopNet,  on  the  one  hand,  nor  the  FTC  Staff,  on  the  other 
hand, has triggered commencement of the 45-day period.    

F-37 

 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 

 (CONTINUED) 

COSTAR GROUP, INC. 

20. SUBSEQUENT EVENTS 

 (CONTINUED) 

On February 16, 2012, the Company entered into a credit agreement (the ―Credit Agreement‖) by and among 
CoStar, as  borrower, CoStar  Realty Information, Inc., as  co-borrower, the  lenders from  time to time party thereto 
and JPMorgan Bank, as administrative agent.  The Credit Agreement provides for a $175.0 million term loan facility 
and a $50.0 million revolving credit facility, each with a term of five years.  The obligation of the lenders to make 
the  loans  under  the  Credit  Agreement  is  subject  to  the  simultaneous  closing  of  the  merger  with  LoopNet  and  the 
satisfaction of certain other conditions precedent.  The Company expects to use the proceeds of the term loan facility 
on the date on which such conditions are satisfied along with net proceeds from the equity offering in June 2011 to 
pay a portion of the merger consideration and transaction costs related to the merger.  The proceeds of the revolving 
credit facility may be used, on the closing date, to pay for transaction costs related to the merger and, thereafter, for 
working capital and other general corporate purposes of CoStar and its subsidiaries. 

The  revolving  credit  facility  includes  a  subfacility  for  swingline  loans  of  up  to  $5.0  million  and  up  to  $10.0 
million  of  the  revolving  credit  facility  is  available  for  the  issuance  of  letters  of  credit.  The  term  loan  facility  will 
amortize in quarterly installments in amounts resulting in an annual amortization of 5% during the first year, 10% 
during the second year, 15% during the third year, 20% during the fourth year and 50% during the fifth year after the 
closing date.  The loans under the Credit Agreement will bear interest, at the Company’s option, either (i) during any 
interest period selected by CoStar, at the London interbank offered rate for deposits in U.S. dollars with a maturity 
comparable to such interest period, adjusted for statutory reserves (―LIBOR‖), plus a spread of 2.00% per annum, or 
(ii)  at  the  greatest  of  (x)  the  prime  rate  from  time  to  time  announced  by  J.P.  Morgan  Bank,  (y)  the  federal  funds 
effective rate plus ½ of 1% and (z) LIBOR for a one-month interest period plus 1.00%, plus a spread of 1.00% per 
annum.  If an event of default occurs under the Credit Agreement, the interest rate on overdue amounts will increase 
by 2.00% per annum.  The obligations under the Credit Agreement will be guaranteed by all material subsidiaries of 
the Company and secured by a lien on substantially all of the assets of the Company and its material subsidiaries, in 
each  case  subject  to  certain  exceptions,  pursuant  to  security  and  guarantee  documents  to  be  entered  into  on  the 
closing date.  

The  original  commitment  letter  from  J.P.  Morgan  Bank  received  on  April  27,  2011  remains  outstanding  and 
available, subject to customary conditions, to fund the LoopNet acquisition and the ongoing working capital needs 
of the Company and its subsidiaries following the LoopNet transaction until the earlier of funding of the term loan 
facility into escrow pursuant to the Credit Agreement, if applicable, and the business day after the beginning of the 
marketing period under the merger agreement.  However, the Company does not currently anticipate utilizing that 
original commitment.   

The Credit Agreement requires the Company to maintain a debt service coverage ratio of at least 1.5 to 1.0 and 
a total leverage ratio not exceeding 3.25 to 1.00 during the first two fiscal quarters after the closing date, 3.00 to 1.00 
during the third and fourth full fiscal quarters after the closing date, 2.75 to 1.00 during the period from the fifth to 
the eighth full fiscal quarter after the closing date and 2.50 to 1.00 thereafter. The Credit Agreement also includes 
other covenants, including covenants that, subject to certain exceptions, restrict the ability of  the Company and its 
subsidiaries (i) to incur additional indebtedness, (ii) to create, incur, assume or permit to exist any liens, (iii) to enter 
into mergers, consolidations or similar transactions, (iv) to make investments and acquisitions, (v) to make certain 
dispositions  of  assets,  (vi) to  make  dividends,  distributions  and  prepayments  of  certain  indebtedness,  and  (vii) to 
enter into certain transactions with affiliates. 

In  connection  with  obtaining  the  facility  pursuant  to  the  Credit  Agreement,  the  Company  expects  to  incur 
approximately $10.6 million in debt issuance costs, which will be capitalized and amortized as interest expense over 
the term of the Credit Agreement using the effective interest method.  The debt issuance costs will be comprised of 
approximately  $9.1  million  in  underwriting  fees  and  approximately  $1.5  million  primarily  related  to  legal  fees 
associated with the debt issuance.  The Company has incurred approximately $900,000 in debt issuance costs as of 
December 31, 2011. 

F-38 

 
 
 
 
 
 
 
 
SUBSIDIARIES OF THE REGISTRANT 

EXHIBIT 21.1 

     a) CoStar Realty Information, Inc., a Delaware corporation 

     b) CoStar Limited, a U.K. company 

     c) CoStar UK Limited, a U.K. company 

d) Grecam S.A.S., a France Societée par Actions Simplifiée 

e) Property and Portfolio Research, Inc., a Delaware corporation 

f) Property and Portfolio Research Ltd., a U.K. company 

g) Resolve Technology, Inc., a Delaware corporation 

h) 1331 L Street Holdings, LLC, a Delaware limited liability company 

i) CGI Building Finance, LLC, a Delaware limited liability company 

j) VirtualPremise, Inc., a Delaware corporation 

k) Lonestar Acquisition Sub, Inc., a Delaware corporation 

l) CoStar Realty Information Canada Ltd., a British Columbia company 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consent of Independent Registered Public Accounting Firm 

Exhibit 23.1 

We consent to the incorporation by reference in the following Registration Statements: 

(1)   Registration Statement Number  333-82599 on Form S-8 pertaining to the Realty Information Group, 

Inc. 1998 Stock Incentive Plan 

(2)   Registration Statement Number  333-92165 on Form S-8 pertaining to the CoStar Group, Inc. 1998 Stock 

Incentive Plan, as amended 

(3)   Registration Statement Number  333-45770 on Form S-8 pertaining to the CoStar Group, Inc. 1998 Stock 

Incentive Plan, as amended 

(4)   Registration Statement Number  333-69548 on Form S-8 pertaining to the CoStar Group, Inc. 1998 Stock 

Incentive Plan (as amended) 

(5)   Registration Statement Number  333-135709 on Form S-8 pertaining to the CoStar Group, Inc. Employee 

Stock Purchase Plan 

(6)   Registration Statement Number  333-143968 on Form S-8 pertaining to the CoStar Group, Inc. 2007 

Stock Incentive Plan, as amended 

(7)   Registration Statement Number  333-167424 on Form S-8 pertaining to the CoStar Group, Inc. 2007 

Stock Incentive Plan, as amended 

(8)   Registration Statement Number 333-174214 on Form S-4 of CoStar Group, Inc. 
(9)   Registration Statement Number 333-174407 on Form S-3 of CoStar Group, Inc. 

of our reports dated February 23, 2012, with respect to the consolidated financial statements and schedule of CoStar 
Group, Inc. and the effectiveness of internal control over financial reporting of CoStar Group, Inc. included in this 
Annual Report (Form 10-K) of CoStar Group, Inc. for the year ended December 31, 2011. 

/s/ Ernst & Young LLP 

McLean, Virginia 
February 23, 2012 

 
 
 
 
 
 
 
 
 
 
 
EXHIBIT 31.1 

CERTIFICATION 

I, Andrew C. Florance, certify that:  

1.  I have reviewed this annual report on Form 10-K of CoStar Group, Inc.;  

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a 
material fact necessary to make the statements made, in light of the circumstances under which such statements 
were made, not misleading with respect to the period covered by this report; 

3. Based on my knowledge, the financial statements, and other financial information included in  this report, fairly 
present in all material respects the financial condition, results of operations and cash flows of the registrant as of, 
and for, the periods presented in this report; 

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls 
and procedures (as defined in Exchange  Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial 
reporting (as defined in Exchange Act Rules 13(a)-15(f) and 15(d)-15(f)) for the registrant and have: 

a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be 
designed under our supervision, to ensure that material information relating to the registrant, including its 
consolidated  subsidiaries,  is  made  known  to  us  by  others  within  those  entities,  particularly  during  the 
period in which this report is being prepared; 

b)  Designed  such  internal  control  over  financial  reporting,  or  caused  such  internal  control  over  financial 
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of 
financial  reporting  and  the  preparation  of  financial  statements  for  external  purposes  in  accordance  with 
generally accepted accounting principles; 

c)  Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and  presented  in  this 
report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the 
period covered by this report based on such evaluation; and 

d)  Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred 
during  the  registrant’s  most  recent  fiscal  quarter  (the  registrant’s  fourth  fiscal  quarter  in  the  case  of  an 
annual  report)  that  has  materially  affected,  or  is  reasonably  likely  to  materially  affect,  the  registrant’s 
internal control over financial reporting; and 

5.  The  registrant’s  other  certifying  officers  and  I  have  disclosed,  based  on  our  most  recent  evaluation  of  internal 
control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of 
directors (or persons performing the equivalent functions): 

a)  All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over 
financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, 
summarize and report financial information; and 

b)  Any fraud, whether or not material, that involves management or other employees who have a significant 

role in the registrant’s internal control over financial reporting. 

Date: February 23, 2012 

By: 

/s/ Andrew C. Florance 
Andrew C. Florance 
Chief Executive Officer 
(Principal Executive Officer and 
Duly Authorized Officer) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT 31.2 

CERTIFICATION 

I, Brian J. Radecki, certify that:  

1.  I have reviewed this annual report on Form 10-K of CoStar Group, Inc.; 

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a 
material fact necessary to make the statements made, in light of the circumstances under which such statements 
were made, not misleading with respect to the period covered by this report; 

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly 
present in all material respects the financial condition, results of operations and cash flows of the registrant as of, 
and for, the periods presented in this report;  

4. The registrant’s other certifying officers and I are responsible for establishing and maintaining disclosure controls 
and procedures (as defined in Exchange  Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial 
reporting (as defined in Exchange Act Rules 13(a)-15(f) and 15(d)-15(f)) for the registrant and have: 

a)  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be 
designed under our supervision, to ensure that material information relating to the registrant, including its 
consolidated  subsidiaries,  is  made  known  to  us  by  others  within  those  entities,  particularly  during  the 
period in which this report is being prepared; 

b)  Designed  such  internal  control  over  financial  reporting,  or  caused  such  internal  control  over  financial 
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of 
financial  reporting  and  the  preparation  of  financial  statements  for  external  purposes  in  accordance  with 
generally accepted accounting principles; 

c)  Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and  presented  in  this 
report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the 
period covered by this report based on such evaluation; and 

d)  Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred 
during  the  registrant’s  most  recent  fiscal  quarter  (the  registrant’s  fourth  fiscal  quarter  in  the  case  of  an 
annual  report)  that  has  materially  affected,  or  is  reasonably  likely  to  materially  affect,  the  registrant’s 
internal control over financial reporting; and 

5.  The  registrant’s  other  certifying  officers  and  I  have  disclosed,  based  on  our  most  recent  evaluation  of  internal 
control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of 
directors (or persons performing the equivalent functions): 

a)  All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal  control  over 
financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, 
summarize and report financial information; and 

b)  Any fraud, whether or not material, that involves management or other employees who have a significant 

role in the registrant’s internal control over financial reporting. 

Date: February 23, 2012 

By: 

/s/ Brian J. Radecki 
Brian J. Radecki 
Chief Financial Officer 
(Principal Financial and Accounting 
Officer and Duly Authorized Officer) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT 32.1 

CoStar Group, Inc. 
1331 L Street, NW 
Washington, DC 20005 

February 23, 2012 

Securities and Exchange Commission 
100 F Street, NE 
Washington, DC  20549 

Re:  Certification Of Principal Executive Officer Pursuant To 18 U.S.C. Sec. 1350 

Dear Ladies and Gentlemen:  

In connection with the accompanying Annual Report on Form 10-K of CoStar Group, Inc., for the year ended 
December 31, 2011, I, Andrew C. Florance, Chief Executive Officer of CoStar Group, Inc., hereby certify pursuant 
to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: 

1)  such  Annual  Report  on  Form  10-K  of  CoStar  Group,  Inc.,  for  the  year  ended  December  31,  2011,  fully 
complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C 78m or 
78o (d)); and 

2) the information contained in such Annual Report on Form 10-K of CoStar Group, Inc., for the  year ended 
December  31,  2011,  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of  operations  of 
CoStar Group, Inc. 

By: 

/s/ Andrew C. Florance 
Andrew C. Florance 
Chief Executive Officer 
(Principal Executive Officer and 
Duly Authorized Officer) 

A  signed  original  of  this  written  statement  required  by  Section  906,  or  other  document  authenticating, 
acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this 
written statement required by Section 906, has been provided to CoStar Group, Inc. and will be retained by CoStar 
Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request. 

In accordance with Item 601 of Regulation S-K, this certification is being ―furnished‖ as Exhibit 32.1 to CoStar 
Group, Inc.’s annual report and shall not be deemed ―filed‖ for purposes of Section 18 of the Securities Exchange 
Act  of  1934  (the  ―Exchange  Act‖)  or  otherwise  subject  to  the  liabilities  of  that  section,  nor  shall  it  be  deemed 
incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set 
forth by specific reference in such a filing. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EXHIBIT 32.2 

CoStar Group, Inc. 
1331 L Street, NW 
Washington, DC 20005 

February 23, 2012 

Securities and Exchange Commission 
100 F Street, NE 
Washington, DC  20549 

Re: Certification Of Principal Financial Officer Pursuant To 18 U.S.C. Sec. 1350 

Dear Ladies and Gentlemen: 

In connection with the accompanying Annual Report on Form 10-K of CoStar Group, Inc., for the year ended 
December 31, 2011, I, Brian J. Radecki, Chief Financial Officer of CoStar Group, Inc., hereby certify pursuant to 18 
U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: 

1)  such  Annual  Report  on  Form  10-K  of  CoStar  Group,  Inc.,  for  the  year  ended  December  31,  2011,  fully 
complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 
78o (d)); and 

2) the information contained in such Annual Report on Form 10-K of CoStar Group, Inc., for the  year ended 
December  31,  2011,  fairly  presents,  in  all  material  respects,  the  financial  condition  and  results  of  operations  of 
CoStar Group, Inc. 

By: 

/s/ Brian J. Radecki 
Brian J. Radecki 
Chief Financial Officer 
(Principal Financial and Accounting 
Officer and Duly Authorized Officer) 

A  signed  original  of  this  written  statement  required  by  Section  906,  or  other  document  authenticating, 
acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this 
written statement required by Section 906, has been provided to CoStar Group, Inc. and will be retained by CoStar 
Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request. 

In accordance with Item 601 of Regulation S-K, this certification is being ―furnished‖ as Exhibit 32.2 to CoStar 
Group, Inc.’s annual report and shall not be deemed ―filed‖ for purposes of Section 18 of the Securities Exchange 
Act  of  1934  (the  ―Exchange  Act‖)  or  otherwise  subject  to  the  liabilities  of  that  section,  nor  shall  it  be  deemed 
incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set 
forth by specific reference in such a filing. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Michael R. Klein

Andrew C. Florance*

David Bonderman

Michael J. Glosserman

Warren H. Haber

Christopher J. Nassetta

David J. Steinberg

Brian J. Radecki*

John L. Stanfill*

Jennifer L. Kitchen*

Paul Marples*

Jonathan M. Coleman

Board of Directors

Michael R. Klein 
Chairman of the Board,  
CoStar Group, Inc. &  
Chairman of the Board  
The Sunlight Foundation

Andrew C. Florance* 
President & Chief Executive Officer,  
CoStar Group, Inc.

David Bonderman 
Founding Partner,  
TPG Capital, L.P.

Michael J. Glosserman 
Managing Member, 
The JBG Companies

Warren H. Haber 
Chairman of the Board &  
Chief Executive Officer,  
Founders Equity, Inc.

Christopher J. Nassetta 
President & Chief Executive Officer, 
Hilton Worldwide

David J. Steinberg 
Chief Executive Officer, 
SnappCloud, Inc.

Executive Officers

Brian J. Radecki*
Chief Financial Officer

John L. Stanfill*
Senior Vice President,  
Sales & Customer Service

Jennifer L. Kitchen*
Senior Vice President,  
Research

Paul Marples*
Managing Director,  
CoStar U.K. Limited

Jonathan M. Coleman
General Counsel & Secretary

*Denotes CoStar Executive and Section 16 Officer

This report contains “forward-looking statements,” including, without limitation, statements regarding CoStar’s expectations, beliefs, intentions or strategies regarding the future. 
These statements are subject to many risks and uncertainties that could cause actual results to differ materially from these statements. Please review the section entitled “Risk 
Factors” in CoStar’s Form 10-K for the year ended December 31, 2011, for potential factors that could cause actual results to differ materially from these forward-looking statements. All 
forward-looking statements are based on information available to CoStar on the date of this report, and we assume no obligation to update such statements whether as a result of new 
information, future events or otherwise.

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About CoStar

Shareholder Information

Investor Relations

Richard Simonelli
Director, Investor Relations 
202-346-6394
rsimonelli@costar.com

Stock Listing
Symbol: CSGP 
NASDAQ Listed

Independent Auditors
Ernst & Young LLP 
8484 Westpark Drive 
McLean, VA 22102

Transfer Agent and Registrar
American Stock Transfer &  
Trust Company, LLC
6201 15th Avenue
Brooklyn, NY 11219

CoStar Group (Nasdaq: CSGP) is 
commercial real estate’s leading provider  
of information and analytic services. 
Founded in 1987, CoStar conducts 
expansive, ongoing research to produce and 
maintain the largest most comprehensive 
database of commercial real estate 
information. Our suite of online services 
enables clients to analyze, interpret and 
gain unmatched insight on commercial 
property values, market conditions and 
current availabilities. Headquartered in 
Washington, DC, CoStar maintains offices 
throughout the U.S. and in Europe with 
a staff of approximately 1,500 worldwide, 
including the industry’s largest professional 
research organization. For more 
information, visit www.costar.com.

© 2012 CoStar Group, Inc.