Consolidated Statements of Operations (Unaudited) (USD $) Share data 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	$ 176,767,000	$ 146,647,000	$ 340,462,000	$ 290,972,000
Non-property income:
Other income	2,855,000	2,056,000	7,390,000	3,527,000
Total revenues	179,622,000	148,703,000	347,852,000	294,499,000
Rental expenses:
Real estate taxes and insurance	20,515,000	18,327,000	41,355,000	37,011,000
Personnel	15,439,000	13,518,000	30,168,000	26,489,000
Utilities	9,122,000	7,652,000	18,133,000	16,004,000
Repair and maintenance	9,594,000	8,177,000	18,560,000	15,737,000
Administrative and marketing	4,317,000	3,824,000	8,270,000	7,521,000
Property management	4,861,000	4,033,000	9,363,000	8,002,000
Other operating expenses	1,544,000	1,457,000	3,001,000	2,942,000
Real estate depreciation and amortization	91,107,000	70,254,000	172,625,000	138,993,000
Interest
Expense incurred	37,381,000	35,218,000	72,969,000	70,346,000
Amortization of convertible debt discount	359,000	928,000	719,000	1,895,000
Other debt charges	40,000	1,030,000	4,059,000	1,030,000
General and administrative	12,918,000	10,293,000	23,593,000	19,933,000
Other depreciation and amortization	986,000	1,308,000	2,029,000	2,531,000
Total expenses	208,183,000	176,019,000	404,843,000	348,434,000
Loss from operations	(28,561,000)	(27,316,000)	(56,991,000)	(53,935,000)
Loss from unconsolidated entities	(1,348,000)	(1,185,000)	(2,680,000)	(1,922,000)
Loss from continuing operations	(29,909,000)	(28,501,000)	(59,671,000)	(55,857,000)
Income from discontinued operations	44,818,000	861,000	45,924,000	3,191,000
Consolidated net income/(loss)	14,909,000	(27,640,000)	(13,747,000)	(52,666,000)
Net (income)/loss attributable to redeemable non-controlling interests in OP	(221,000)	1,064,000	611,000	2,069,000
Net income attributable to non-controlling interests	(37,000)	(45,000)	(88,000)	(80,000)
Net income/(loss) attributable to UDR, Inc.	14,651,000	(26,621,000)	(13,224,000)	(50,677,000)
(Premium)/discount on preferred stock repurchases, net	(175,000)	25,000	(175,000)	25,000
Net income/(loss) attributable to common stockholders	12,149,000	(28,968,000)	(18,094,000)	(55,403,000)
Earnings per weighted average common share- basic and diluted:
Loss from continuing operations attributable to common stockholders	$ (0.17)	$ (0.19)	$ (0.34)	$ (0.37)
Income from discontinued operations	$ 0.23	$ 0.01	$ 0.24	$ 0.02
Net income/(loss) attributable to common stockholders	$ 0.06	$ (0.18)	$ (0.10)	$ (0.35)
Common distributions declared per share	$ 0.200	$ 0.180	$ 0.385	$ 0.360
Weighted average number of common shares outstanding- basic and diluted	190,479	160,886	186,527	158,522
8.00% Series E Cumulative Convertible Preferred Stock
Interest
Distributions to preferred stockholders	(931,000)	(931,000)	(1,862,000)	(1,862,000)
6.75% Series G Cumulative Redeemable Preferred Stock
Interest
Distributions to preferred stockholders	$ (1,396,000)	$ (1,441,000)	$ (2,833,000)	$ (2,889,000)