Attached files
| file | filename |
|---|---|
| 10-K - 2010 FORM 10-K - COSTAR GROUP, INC. | form_10-k.htm |
| EX-10.14 - EMPLOYEE STOCK PURCHASE PLAN - COSTAR GROUP, INC. | exhibit10_14.htm |
| EX-21.1 - SUBSIDIARIES OF REGISTRANT - COSTAR GROUP, INC. | exhibit21_1.htm |
| EX-32.2 - CFO 906 CERT - COSTAR GROUP, INC. | exhibit32_2.htm |
| EX-31.1 - CEO CERT - COSTAR GROUP, INC. | exhibit31_1.htm |
| EX-32.1 - CEO 906 CERT - COSTAR GROUP, INC. | exhibit32_1.htm |
| EX-31.2 - CFO CERT - COSTAR GROUP, INC. | exhibit31_2.htm |
EXHIBIT 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following Registration Statements:
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(1)
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Registration Statement Number 333-82599 on Form S-8 pertaining to the Realty Information Group, Inc. 1998 Stock Incentive Plan
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(2)
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Registration Statement Number 333-92165 on Form pertaining to the CoStar Group, Inc. 1998 Stock Incentive Plan, as amended
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(3)
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Registration Statement Number 333-45770 on Form S-8 pertaining to the CoStar Group, Inc. 1998 Stock Incentive Plan, as amended
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(4)
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Registration Statement Number 333-69548 on Form S-8 pertaining to the CoStar Group, Inc. 1998 Stock Incentive Plan (as amended)
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(5)
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Registration Statement Number 333-135709 on Form S-8 pertaining to the CoStar Group, Inc. Employee Stock Purchase Plan
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(6)
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Registration Statement Number 333-143968 on Form S-8 pertaining to the CoStar Group, Inc. 2007 Stock Incentive Plan, as amended
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(7)
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Registration Statement Number 333-167424 on Form S-8 pertaining to the CoStar Group, Inc. 2007 Stock Incentive Plan, as amended
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of our reports dated February 24, 2011, 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, 2010.
/s/ Ernst & Young LLP
McLean, Virginia
February 24, 2011