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

		For the three months ended March 31,						For the years ended December 31,
			2005			2004			2004			2003			2002			2001			2000
Earnings before fixed charges:
Add:
	Income from continuing operations (a)	$	9,691		$	13,516		$	60,281		$	85,126		$	57,018		$	27,222		$	47,753
	Fixed charges – per below		20,221			13,581			61,062			62,407			69,881			76,558			77,535
Less:
	Income from equity method investments not distributed		—			—			—			—			—			—			(518	)
	Capitalized interest		(1,772	)		(396	)		(3,030	)		(1,503	)		(2,949	)		(5,178	)		(8,182	)
Earnings before fixed charges		$	28,140		$	26,701		$	118,313		$	146,030		$	123,950		$	98,602		$	116,588
Fixed charges:
Interest expense (including amortization)		$	17,797		$	12,104		$	55,061		$	57,835		$	63,522		$	67,496		$	64,746
Capitalized interest			1,772			396			3,030			1,503			2,949			5,178			8,182
Proportionate share of interest for unconsolidated subsidiaries			652			1,081			2,971			3,069			3,410			3,884			4,607
	Total Fixed Charges	$	20,221		$	13,581		$	61,062		$	62,407		$	69,881		$	76,558		$	77,535
Ratio of earnings to fixed charges			1.39			1.97			1.94			2.34			1.77			1.29			1.50

(a) Amounts for the three months ended March 31, 2005 and 2004 and for the years ended December 31, 2004, 2003, 2002, 2001 and 2000 have been reclassified to present properties identified as held for sale consistent with the presentation for the period ended December 31, 2004. As a result, operations have been reclassified to discontinued operations from continuing operations for all periods presented.