Exhibit 21.1

Subsidiaries of the Registrant

Columbia Property Trust Operating Partnership, L.P. (“Columbia Property Trust OP”)

Columbia Energy TRS, LLC

Columbia KCP TRS, LLC

Columbia Market Square GP, LLC

Columbia OP LP, LLC

Columbia Property Trust Advisory Services, LLC

Columbia Property Trust Services, LLC

Columbia Property Trust TRS, LLC

Wells REIT II - 80 M Street, LLC

Wells REIT II - Cranberry Woods Development, Inc.

Wells REIT II - KCP, LLC

Wells REIT II Texas, Inc.

Indirect Subsidiaries of the Registrant

Columbia MSQ TRS, LLC

Columbia REIT - Market Square East & West, LLC

Key Center Lessee Limited Partnership

Market Square East & West, LP

Market Square REIT East & West, LLC

Wells REIT II - 5 Houston Center, LP

Wells TRS II - Concierge, LLC

Wells TRS II - Hotel, LLC

Direct Subsidiaries of Columbia Property Trust OP

Columbia REIT - 114 Fifth Ave, LLC

Columbia REIT - 116 Huntington, LLC

Columbia REIT - 149 Madison, LLC

Columbia REIT - 1800 M REIT GP, LLC

Columbia REIT - 1800 M REIT LP, LLC

Columbia REIT - 218 W. 18th, LLC

Columbia REIT - 221 Main, LLC

Columbia REIT - 229 W. 43rd Street, LLC

Columbia REIT - 245-249 17th LLC

Columbia REIT - 315 Park Avenue South, LLC

Columbia REIT - 333 Market Street GP, LLC

Columbia REIT - 650 California, LLC

Columbia REIT - 799 Broadway, LLC

Columbia REIT - LCC Retail, LLC

Columbia REIT - University Circle GP, LLC

Wells International Real Estate II (CY) Ltd

Wells REIT II - 222 East 41st Street, LLC

Wells REIT II - Energy Center I, LLC

Wells REIT II - International Financial Tower, LLC

Wells REIT II - Key Center, LLC

Wells REIT II - Lindbergh Center, LLC

Wells REIT II - One Glenlake, LLC

Wells REIT II - Pasadena Corporate Park, LLC

Wells REIT II - Pasadena Corporate Park, LP

Wells REIT II - Three Glenlake, LLC

Indirect Subsidiaries of OP

1800 M Owner GP, LLC

1800 M REIT GP, LLC

1800 M Street Owner, LP

1800 M Street REIT, LP

1800 M Street TRS, LP

1800 M Street Venture, LP

Columbia REIT - University Circle, LP

Columbia REIT - 333 Market Street, LP

Eastvale Finance Limited

I - 10 EC Corridor Limited Partnership

Key Center Properties, LLC

Three Glenlake Building, LLC

Wells REIT II - Energy Center I GP, LLC