PRESS RELEASE DETAIL


Jan 07, 2008

CoStar Group Consolidates Operations at Corporate Headquarters and in San Diego

2000-04-17 2000 CoStar Group Consolidates Operations at Corporate Headquarters and in San Diego

BETHESDA, MD -- CoStar Group (Nasdaq: CSGP), the leadi...

2000-04-17 2000 CoStar Group Consolidates Operations at Corporate Headquarters and in San Diego

BETHESDA, MD -- CoStar Group (Nasdaq: CSGP), the leading provider of information services to the U.S. commercial real estate industry, announced today the relocation of its corporate offices in Bethesda, Maryland, and its San Diego offices.

As a result of streamlining corporate functions and integrating its most recent acquisition, Comps, Inc., CoStar Group is consolidating operations in Bethesda and San Diego. These relocations represent the first major step in combining offices and product divisions in a number of markets throughout the country. The company expects to complete the remaining office consolidations by year-end.

The new address for CoStar Group Corporate Headquarters is effective immediately:

2 Bethesda Metro Center 
10th Floor   
Bethesda, MD  20814-5388 

Please note that telephone numbers, Internet and E-mail addresses for    CoStar headquarters and employees will not change.The new location of CoStar's San Diego office and operations of Comps, Inc. is:

9715 Business Park Avenue   
San Diego, CA 92131   
Main Phone:  858-831-7400   
FAX: 858-831-7312   

Please note that the main number, 800-821-1573, will remain the same    although direct telephone extensions will change. The relocation will be    complete by April 28.

About CoStar Group, Inc.

Headquartered in Bethesda, MD, CoStar Group, Inc., (http://www.costargroup.com) is the leading provider of information services to the U.S. commercial real estate industry. CoStar's suite of products offers customers access to the most comprehensive, verified database of U.S. commercial real estate information in 54 markets. The Company has over 1,000 employees and contractors nationally, including over 700 highly trained commercial real estate research professionals.

 
'