Annual Pricing Gains Seen Across All regions and Property Types Despite Seasonal Slowdown in First Quarter 2013.  Breadth of Commercial Real Estate Recovery Widening Along With Acceleration in Lending Volume Across Capital Sources

CoStar First Quarter 2013 Revenue Grows 52% Year-Over-Year; Organic Growth Rate of LoopNet Core Business Surges 219% Since Acquisition; Company Raises Revenue and Earnings Guidance

Pricing Recovery for Commercial Property Continues in February Despite Seasonal VolatilityWhile broader indices gave back some gains from 2012, advances in the investment grade segment, along with improving market fundamentals, signal positive shift in pricing momentum going forward.

CoStar will announce financial results for the first quarter of 2013 following the market close on Wednesday, April 24, 2013. Management will conduct a conference call to discuss the first quarter results at 11:00 AM EDT on Thursday, April 25, 2013.

The National Capital Chapter of the Association for Corporate Growth (ACG), the Washington, D.C. region’s preeminent association for professionals involved in corporate growth, corporate development and M&A, today announced the finalists for the 2013 Corporate Growth Awards.

Commercial Real Estate Pricing Levels Off In January Following Year-End Surge Increasing Liquidity and Declining Distressed Sales Volume Signal Improving Investor Sentiment

CoStar Group announces the winners of the 2012 CoStar Power Broker Awards™, recognizing the best of the best in commercial real estate brokerage.

CoStar Fourth Quarter Revenue Climbs 51% Year-Over-Year Reaching $100 Million and Drives 86% Year-Over-Year EBITDA Increase

U.S. commercial real estate posts record gain in sales volume and broadening pricing recovery to close 2012. Pricing recovery matures beyond multifamily to other property types and expands to more secondary markets

CoStar Group to Report Fourth Quarter 2012 Financial Results on February 27, 2013: Earnings Release to be Issued After Market Close on Wednesday, February 27; Conference Call to Discuss Fourth Quarter 2012 Financial Results Scheduled for 11:00 AM EDT on Thursday, February 28

LoopNet.com Uses Stunning Visual Effect to Make 12-story Building in Downtown Los Angeles “Disappear” Progressive Event Demonstrates that if a Commercial Property isn’t Advertised on LoopNet.com, It Might as Well be Invisible

Commercial Real Estate Prices Continue Positive Momentum in November on Strength of Improving Fundamentals Strong Growth in the General Commercial Index Signals Continued Broad-Based Recovery

Commercial Property Prices Show Little Movement in October Amid Economic Uncertainty Advances in Investment Grade Index Fueled by Seasonal Surge

CRE PRICING RECOVERY CONTINUES TO MATURE AND BROADENPRICING GROWTH ACCELERATES BEYOND MULTIFAMILY SECTOR, CORE MARKETS

CoStar Group announced that it has leased 26,800 square feet of space at Phipps Tower at 3438 Peachtree Road in Atlanta, Georgia.