Biomed Realty Trust 10-K 2011 FY Annual report

Exhibit 12.1

BioMed Realty Trust, Inc.

Statement of Computation of Ratios

	Year Ended December 31,
	2011			2010			2009			2008			2007
Earnings:
Add:
Income from continuing operations before minority interests and income/loss from unconsolidated joint ventures	$	45,203		$	40,959		$	62,580		$	64,331		$	73,099
Amortization of interest capitalized		4,613			4,456			3,009			1,308			112
Distributions from unconsolidated joint ventures		2,428			1,374			586			687			357
Fixed charges (see below)		96,738			91,515			77,095			83,008			85,927
Subtract:
Interest capitalized		(7,557	)		(5,442	)		(12,405	)		(42,320	)		(58,132	)
Total earnings	$	141,425		$	132,862		$	130,865		$	107,014		$	101,363
Fixed charges:
Interest expensed, net		89,181			86,073			64,690			40,688			27,795
Interest capitalized		7,557			5,442			12,405			42,320			58,132
Total fixed charges	$	96,738		$	91,515		$	77,095		$	83,008		$	85,927
Ratio of earnings to fixed charges		1.5			1.5			1.7			1.3			1.2
Ratio of earnings to fixed charges and preferred stock dividends		1.3			1.2			1.4			1.1			1.0
Preferred stock dividends	$	16,033		$	16,963		$	16,963		$	16,963		$	16,868

Exhibit 12.1

BioMed Realty L.P.

Statement of Computation of Ratios

	Year Ended December 31,
	2011			2010			2009			2008			2007
Earnings:
Add:
Income from continuing operations before minority interests and income/loss from unconsolidated joint ventures	$	45,203		$	40,959		$	62,580		$	64,331		$	73,099
Amortization of interest capitalized		4,613			4,456			3,009			1,308			112
Distributions from unconsolidated joint ventures		2,428			1,374			586			687			357
Fixed charges (see below)		96,738			91,515			77,403			83,492			86,918
Subtract:
Interest capitalized		(7,557	)		(5,442	)		(12,405	)		(42,320	)		(58,132	)
Total earnings	$	141,425		$	132,862		$	131,173		$	107,498		$	102,354
Fixed charges:
Interest expensed, net		89,181			86,073			64,690			40,688			27,795
Interest capitalized		7,557			5,442			12,405			42,320			58,132
Total fixed charges	$	96,738		$	91,515		$	77,095		$	83,008		$	85,927
Ratio of earnings to fixed charges		1.5			1.5			1.7			1.3			1.2
Ratio of earnings to fixed charges and preferred unit distributions		1.3			1.2			1.4			1.1			1.0
Preferred unit distributions	$	16,033		$	16,963		$	16,963		$	16,693		$	16,868