PRESS RELEASE DETAIL


Sep 26, 2011

CoStar Group Names Hans Nordby to Lead Property and Portfolio Research and Industry Veteran Walter Page as Director of Research

WASHINGTON, DC Sept. 26, 2011 -- CoStar Group, Inc. (Nasdaq:CSGP), commercial real estate's leading provider of information and analytic services, today announced that Hans G. Nordby has been promoted to Managing Director of its Property and Portfolio Research (PPR) division. In addition, industry veteran Walter Page has joined PPR as Director of Research. He will specialize in the office sector, provide thought leadership and lead PPR's research efforts. Both are based in PPR's Boston office.

WASHINGTON, DC Sept. 26, 2011 -- CoStar Group, Inc. (Nasdaq:CSGP), commercial real estate's leading provider of information and analytic services, today announced that Hans G. Nordby has been promoted to Managing Director of its Property and Portfolio Research (PPR) division. In addition, industry veteran Walter Page has joined PPR as Director of Research. He will specialize in the office sector, provide thought leadership and lead PPR's research efforts. Both are based in PPR's Boston office.

Nordby has been with PPR since 2002. Most recently he was Director of Advisory Services, where he managed custom strategic research efforts for large public and private pension funds, pension fund advisors, bank holding companies and REITs. Nordby has extensive experience providing clients with commercial real estate insights on portfolio strategy, target market selection, relative value and custom scenario analyses, and acquisition/disposition studies. As Managing Director, he will lead a team of 70 professionals, including 47 economists located in Boston, Washington, DC, and the United Kingdom.

"Hans is a dynamic leader who is extremely visible and well known in the institutional investment marketplace," said Andrew C. Florance, Founder and Chief Executive Officer of CoStar Group. "Hans will work to continue to build upon PPR's leadership position in analytics and work closely with me to further integrate analysis in the CoStar offering. We expect that he will continue to be a valued senior advisor to our clients."

Page has more than 25 years of commercial real estate experience and a successful track record in leading teams to provide cutting edge real estate research. He was formerly Managing Director of Research at American Realty Advisors, Vice President of Research at Equity Office and Vice President of Research at LaSalle Investment Management, all in Chicago, IL. In each of those senior research positions, Page was charged with creating the corporate view, tracking and forecasting real estate markets, and advising in the assumptions used for strategic buy-and-sell decisions, which contributed to above-average investment returns during his tenure.

"Walter brings a vast wealth of real world investment knowledge and experience to our team and clients," said Florance. "Research is the foundation for the analytics and forecasting we provide our clients, and Walter is a valuable addition for both his leadership and his innovative and insightful approach to commercial real estate research."

CoStar plans to announce additional senior level appointments to PPR's research and quantitative teams with an emphasis on strengthening property sector specialization, Florance stated.

About Property and Portfolio Research

Property and Portfolio Research (PPR) provides unparalleled expertise and objective thinking in analyzing and forecasting commercial real estate markets. PPR sets the pace in offering independent research, a unique set of analytic tools, and actionable insights to commercial real estate investors on hundreds of global markets in North America and Europe. Clients range from commercial banks and financial institutions to pension funds and insurance companies, as well as government and rating agencies.

With a dedicated commitment to providing the best in commercial real estate research, PPR's widely respected knowledge of the markets allows clients to stay ahead of market trends, act decisively, and feel confident about their investment decisions. PPR is a division of CoStar Group.


About CoStar Group, Inc.

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 and 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.




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