Brandywine Realty Trust (BDN) 8-K Other Events

Exhibit 12.2

Brandywine Operating Partnership, L.P.
Computation of Ratio of Earnings to Combined Fixed Charges
(in thousands)

	For the six months ended June 30,						For the years ended December 31,
	2009			2008			2008			2007			2006			2005			2004
Earnings before fixed charges:
Add:
Income (loss) from continuing operations before equity in earnings from unconsolidated real estate ventures (a)	$	7,184		$	(557	)	$	(1,800	)	$	11,995		$	(28,845	)	$	25,615		$	46,790
Distributed income of equity investees		1,093			2,210			7,639			6,900			2,150			2,403			1,730
Amortization of capitalized interest		1,454			1,400			2,801			2,170			1,508			1,183			887
Fixed charges — per below		77,968			87,038			170,997			185,716			182,012			82,521			57,205
Less:
Capitalized interest		(3,429	)		(9,673	)		(17,154	)		(18,293	)		(9,537	)		(9,603	)		(3,030	)
Earnings before fixed charges	$	84,270		$	80,418		$	162,483		$	188,488		$	147,288		$	102,119		$	103,582
Fixed charges:
Interest expense from continuing operations (including amortization)	$	73,736		$	76,491		$	152,096		$	165,647		$	171,164		$	72,017		$	53,570
Ground leases and other		803			874			1,747			1,776			1,311			901			605
Capitalized interest		3,429			9,673			17,154			18,293			9,537			9,603			3,030
Total Fixed Charges		77,968			87,038			170,997			185,716			182,012			82,521			57,205
Ratio of earnings to combined fixed charges		1.08				(b)			(b)		1.01				(b)		1.24			1.81

(a)	Amounts for the years ended December 31, 2008, 2007, 2006 2005 and 2004 reflect a retrospective adoption of FSP APB 14-1 and discontinued operations through June, 30, 2009. With respect to the discontinued operations, operations have been reclassified from continuing operations for all sales through June 30, 2009.
(b)	Due to the registrant’s loss in the period, the coverage ratio was less than 1:1. The registrant must generate additional earnings of $6,620 for the six months ended June 30, 2008, $8,514 for the year ended December 31, 2008 and $34,724 for the year ended December 31, 2006 to achieve a coverage ratio of 1:1.