Duke Realty Limited PARTNERSHIP 10-Q 2011 Q1 Quarterly report

EXHIBIT 12.1

DUKE REALTY LIMITED PARTNERSHIP

CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS TO

COMBINED FIXED CHARGES AND PREFERRED DISTRIBUTIONS

(in thousands, except ratios)

	Three Months Ended March 31, 2011		Year Ended December 31, 2010			Year Ended December 31, 2009			Year Ended December 31, 2008			Year Ended December 31, 2007		Year Ended December 31, 2006
Net income (loss) from continuing operations, less preferred distributions	$	37,369	$	(39,852	)	$	(327,330	)	$	14,453		$	102,560	$	101,145
Preferred distributions		15,974		69,468			73,451			71,426			58,292		56,419
Interest expense		66,082		238,887			205,433			183,448			159,702		156,609
Earnings (loss) before fixed charges	$	119,425	$	268,503		$	(48,446	)	$	269,327		$	320,554	$	314,173
Interest expense	$	66,082	$	238,887		$	205,433		$	183,448		$	159,702	$	156,609
Interest costs capitalized		1,500		11,498			26,864			53,456			59,167		36,260
Total fixed charges		67,582		250,385			232,297			236,904			218,869		192,869
Preferred distributions		15,974		69,468			73,451			71,426			58,292		56,419
Total fixed charges and preferred distributions	$	83,556	$	319,853		$	305,748		$	308,330		$	277,161	$	249,288
Ratio of earnings to fixed charges		1.77		1.07			N/A	(2)		1.14			1.46		1.63
Ratio of earnings to fixed charges and preferred distributions		1.43		N/A	(1)		N/A	(3)		N/A	(4)		1.16		1.26

(1) N/A – The ratio is less than 1.0; deficit of $51.4 million exists for the year ended December 31, 2010. The calculation of earnings includes $348.6 million of non-cash depreciation expense.

(2) N/A – The ratio is less than 1.0; deficit of $280.7 million exists for the year ended December 31, 2009. The calculation of earnings includes $322.9 million of non-cash depreciation expense.

(3) N/A – The ratio is less than 1.0; deficit of $354.2 million exists for the year ended December 31, 2009. The calculation of earnings includes $322.9 million of non-cash depreciation expense.

(4) N/A – The ratio is less than 1.0; deficit of $39.0 million exists for the year ended December 31, 2008. The calculation of earnings includes $292.2 million of non-cash depreciation expense.