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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001057352-10-000004
Filing Date
2010-02-26
Accepted
2010-02-25 21:46:41
Documents
11
Period of Report
2009-12-31

Document Format Files

Seq Description Document Type Size
1 ANNUAL REPORT form_10-k.htm 10-K 2359783
2 LONDON ORIGINAL LEASE londonoriglease.htm EX-10.26 210404
3 BETHESDA OFFICE LEASE ADDENDUM bethofficelease_add.htm EX-10.27 35675
4 LONDON SUB-UNDERLEASE londonlease.htm EX-10.28 616364
5 SUBSIDS OF REGISTRANT subsids.htm EX-21.1 4288
6 CONSENT OF E&Y ey-consent.htm EX-23.1 4848
7 CEO CERTIFICATION ceocert.htm EX-31.1 17426
8 CFO CERTIFICATION cfocert.htm EX-31.2 17241
9 CEO 906 CERTIFICATION ceo-906_cert.htm EX-32.1 10789
10 CFO 906 CERTIFICATION cfo-906_cert.htm EX-32.2 9777
11 5-YR RETURN GRAPH csgp2009performancegraph.gif GRAPHIC 10382
  Complete submission text file 0001057352-10-000004.txt   3302486
Mailing Address 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814
Business Address 2 BETHESDA METRO CENTER 10TH FLOOR BETHESDA MD 20814 3012158300
COSTAR GROUP INC (Filer) CIK: 0001057352 (see all company filings)

IRS No.: 522091509 | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-24531 | Film No.: 10635946
SIC: 7389 Services-Business Services, NEC