EXHIBIT 21
     The Company has the following subsidiaries. Ashwood Commons, L.L.C., Bellevue PlazaDevelopment LLC, Jefferson at Marina del Rey, L.P. and UDR/Pacific Los Alisos, L.P. are jointventure entities. United Dominion Realty, L.P. and Heritage Communities L.P. are limitedpartnerships with outside limited partners holding minimal percentage interests. The Company ownsgeneral and limited partnership interests in United Dominion Realty, L.P. and Heritage CommunitiesL.P., constituting 95% and 94%, respectively, of the aggregate partnership interest. All otherentities are wholly owned.
     
    State of Incorporation
Subsidiary   or Organization
AAC Funding II, Inc.
   Delaware
AAC Funding IV LLC
   California
AAC Funding IV, Inc.
   Delaware
AAC Funding Partnership II
   Delaware
AAC Funding Partnership III
   Delaware
AAC Seattle I, Inc.
   Delaware
AAC Vancouver I, L.P.
   Washington
AAC/FSC Crown Pointe Investors, LLC
   Washington
AAC/FSC Hilltop Investors, LLC
   Washington
AAC/FSC Seattle Properties, LLC
   Delaware
Arizona Properties, LLC
   Virginia
ASR Investments Corporation
   Maryland
ASR of Delaware LLC
   Delaware
Ashwood Commons, L.L.C.
   Washington
Bellevue JV LLC
   Delaware
Bellevue Plaza Development LLC
   Delaware
CMP-1, LLC
   Delaware
Coastal Monterey Properties LLC
   Delaware
Coit Road, L.P.
   Delaware
Continental 146 Fund LLC
   Wisconsin
Coronado South Apartments, L.P.
   Delaware
DCO 1015 Grandview LP
   Delaware
DCO 2400 14th Street LLC
   Delaware
DCO Addison at Brookhaven LP
   Delaware
DCO Arbors at Lee Vista LLC
   Delaware
DCO Bennett Development LP
   Delaware
DCO Borgata LLC
   Delaware
DCO Brooks Apartments LP
   Delaware
DCO Caroline Development LLC
   Delaware
DCO Clipper Pointe LP
   Delaware
DCO Garden Oaks LP
   Delaware
DCO Gessner Development LP
   Delaware
DCO Glenwood Apartments GP LLC
   Delaware
DCO Glenwood Apartments LP
   Delaware
DCO Glenwood Urban LP
   Delaware
DCO Greenbrook Apartments LP
   Delaware
DCO Greenhaven LP
   Delaware
DCO Highlands LLC
   Delaware
DCO Holdings, Inc.
   Delaware
DCO Holdings LP LLC
   Delaware
DCO Mill Creek LP
   Delaware
DCO Millenia LLC
   Delaware
DCO Option 2 LLC
   Delaware
DCO Pine Avenue LP
   Delaware

 

 

     
    State of Incorporation
Subsidiary   or Organization
DCO Realty, Inc.
   Delaware
DCO Realty LP LLC
   Delaware
DCO Realty Surprise LLC
   Delaware
DCO Realty Woodlands LP
   Delaware
DCO Riachi at One21 LP
   Delaware
DCO Springhaven LP
   Delaware
DCO Talisker LP
   Delaware
FMP Member, Inc.
   Delaware
Fountainhead Apartments Limited Partnership
   Ohio
Governour’s Square of Columbus Co.
   Ohio
HPI 2000 Post LP
   Delaware
HPI 2161 Sutter LP
   Delaware
HPI Canyon Oaks LP
   Delaware
HPI Option 2 LLC
   Delaware
Harding Park, Inc.
   Delaware
Harding Park LP LLC
   Delaware
Hawthorne Apartments LLC
   Delaware
Heritage Communities L.P.
   Delaware
Inlet Bay at Gateway, LLC
   Delaware
Jamestown of St. Matthews Limited Partnership
   Ohio
Jefferson at Marina del Rey, L.P.
   Delaware
Jefferson JV LLC
   Delaware
Lakeside Port Orange LLC
   Delaware
Lincoln TC II, L.P.
   Delaware
LPC Plantation Apartments L.P.
   Delaware
MacAlpine Place Apartment Partners, Ltd.
   Florida
Mandalay on the Lake LP
   Delaware
Milazzo Residences LLC
   Delaware
Northbay Properties II, L.P.
   California
Okeeheelee Apartment Partners, Ltd.
   Florida
Parker’s Landing Condominiums LLC
   Delaware
Parker’s Landing Townhomes LLC
   Delaware
Polo Park Apartments LLC
   Delaware
Polo Park Manager LLC
   Delaware
RE3, Inc.
   Delaware
Ridgewood (I) Townhomes, LLC
   Virginia
St. Johns GP LLC
   Delaware
Sierra Palms Condominiums LLC
   Delaware
The Commons of Columbia, Inc.
   Virginia
Town Square Commons, LLC
   District of Columbia
Trilon Townhouses, LLC
   District of Columbia
UDR Arboretum Apartments, L.P.
   Delaware
UDR Arborview Associates Limited Partnership
   Maryland
UDR Aspen Creek, LLC
   Virginia
UDR California GP, LLC
   Delaware
UDR California GP II, LLC
   Delaware
UDR California Properties, LLC
   Virginia
UDR Calvert, LLC
   Delaware
UDR Calvert’s Walk Associates Limited Partnership
   Maryland
UDR Calvert’s Walk GP, LLC
   Delaware
UDR Carlsbad Apartments, L.P.
   Delaware
UDR Carriage Homes, LLC
   Delaware
UDR Crossroads, L.P.
   Delaware
UDR Developers, Inc.
   Virginia
UDR Foxglove Associates L.L.C.
   Maryland
UDR Harbor Greens, L.P.
   Delaware

 

 

     
    State of Incorporation
Subsidiary   or Organization
UDR Holdings, LLC
   Virginia
UDR Huntington Vista, L.P.
   Delaware
UDR, Inc.
   Maryland
UDR Lakeline Villas LLC
   Delaware
UDR Lakeside Mills, LLC
   Virginia
UDR Lincoln at Towne Square LLC
   Delaware
UDR Lincoln at Towne Square II LLC
   Delaware
UDR Los Alisos, LLC
   Delaware
UDR Maryland Properties, LLC
   Virginia
UDR Midlands Acquisition, LLC
   Delaware
UDR Newport Beach North, L.P.
   Delaware
UDR Ocean Villa Apartments, L.P.
   Delaware
UDR of NC, Limited Partnership
   North Carolina
UDR of Tennessee, L.P.
   Virginia
UDR Ohio Properties, LLC
   Virginia
UDR Out-Performance III, LLC
   Delaware
UDR Out-Performance IV, LLC
   Delaware
UDR Out-Performance V, LLC
   Delaware
UDR Pinebrook, L.P.
   Delaware
UDR Presidential Greens, L.L.C.
   Delaware
UDR Presidio, L.P.
   Delaware
UDR Rancho Cucamonga, L.P.
   Delaware
UDR Red Stone Ranch LLC
   Delaware
UDR Ridgewood (II) Garden, LLC
   Virginia
UDR San Dimas Bonita Apartments, L.P.
   Delaware
UDR San Dimas Canyon Apartments, L.P.
   Delaware
UDR South Carolina Trust
   Maryland
UDR Stone Canyon LLC
   Delaware
UDR Texas Properties LLC
   Delaware
UDR Texas Ventures LLC
   Delaware
UDR The Bradford LLC
   Delaware
UDR The Cliffs LLC
   Delaware
UDR the Crest, L.P.
   Delaware
UDR The Legend at Park Ten LLC
   Delaware
UDR The Mandolin LLC
   Delaware
UDR The Meridian LLC
   Delaware
UDR TX Fund LLC
   Delaware
UDR Villa Venetia Apartments, L.P.
   Delaware
UDR Virginia Properties, LLC
   Virginia
UDR Western Residential, Inc.
   Virginia
UDR Windjammer, L.P.
   Delaware
UDR Woodland Apartments II, L.P.
   Delaware
UDR Woodland GP, LLC
   Delaware
UDR/Pacific Los Alisos, L.P.
   Delaware
UDRT of Delaware 4 LLC
   Delaware
United Dominion Realty, L.P.
   Delaware
University Park Property LLC
   Delaware
Waterside Towers, L.L.C.
   Delaware
Windemere at Sycamore Highlands, LLC
   Delaware
Winterland San Francisco Partners
   California
Woodlake Village, L.P.
   California