Consolidated Statements of Operations (UNITED DOMINION REALTY, L.P) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
REVENUES
Rental income	$ 176,767	$ 146,647	$ 340,462	$ 290,972
Total revenues	179,622	148,703	347,852	294,499
Rental expenses:
Real estate taxes and insurance	20,515	18,327	41,355	37,011
Personnel	15,439	13,518	30,168	26,489
Utilities	9,122	7,652	18,133	16,004
Repair and maintenance	9,594	8,177	18,560	15,737
Administrative and marketing	4,317	3,824	8,270	7,521
Property management	4,861	4,033	9,363	8,002
Other operating expenses	1,544	1,457	3,001	2,942
Real estate depreciation and amortization	91,107	70,254	172,625	138,993
Interest expenses:
Interest on secured debt	37,381	35,218	72,969	70,346
General and administrative	12,918	10,293	23,593	19,933
Total expenses	208,183	176,019	404,843	348,434
Loss from continuing operations	(29,909)	(28,501)	(59,671)	(55,857)
Income/(loss) from discontinued operations	44,818	861	45,924	3,191
Consolidated net income/(loss)	14,909	(27,640)	(13,747)	(52,666)
Net income/(loss) attributable to UDR, Inc.	14,651	(26,621)	(13,224)	(50,677)
United Dominion Reality.L.P [Member]
REVENUES
Rental income	95,944	82,975	181,628	165,044
Total revenues	95,944	82,975	181,628	165,044
Rental expenses:
Real estate taxes and insurance	10,470	10,072	21,151	20,624
Personnel	7,962	6,752	15,377	13,361
Utilities	4,820	3,910	9,383	8,527
Repair and maintenance	4,749	4,218	9,227	8,201
Administrative and marketing	2,094	1,670	3,935	3,332
Property management	2,639	2,282	4,995	4,539
Other operating expenses	1,447	1,160	2,805	2,761
Real estate depreciation and amortization	50,225	39,644	89,819	79,024
Interest expenses:
Interest on secured debt	13,557	12,090	24,533	24,293
Interest on note payable due to General Partner	223	106	446	212
General and administrative	6,294	3,614	10,874	7,494
Total expenses	104,480	85,518	192,545	172,368
Loss from continuing operations	(8,536)	(2,543)	(10,917)	(7,324)
Income/(loss) from discontinued operations	16,044	(9)	16,421	1,839
Consolidated net income/(loss)	7,508	(2,552)	5,504	(5,485)
Net income/loss attributable to non-controlling interests	(32)	(18)	(59)	(35)
Net income/(loss) attributable to UDR, Inc.	$ 7,476	$ (2,570)	$ 5,445	$ (5,520)
Earnings per OP unit- basic and diluted:
Loss from continuing operations attributable to OP unitholders	$ (0.05)	$ (0.01)	$ (0.06)	$ (0.04)
Income from discontinued operations	$ 0.09	$ 0.00	$ 0.09	$ 0.01
Net income/(loss) attributable to OP unitholders	$ 0.04	$ (0.01)	$ 0.03	$ (0.03)
Weighted average OP units outstanding	182,479	179,909	181,201	179,909