Exhibit 12.1

Brandywine Realty Trust

Computation of Ratio of Earnings to Combined Fixed Charges and Preferred Share Distributions

(in thousands)

	For the years ended December 31,
	2016			2015			2014			2013			2012
Earnings before fixed charges:
Add:
Income (loss) from continuing operations before non-controlling interest and equity in income (loss) from unconsolidated real estate ventures	$	52,004		$	(29,929	)	$	6,814		$	35,318		$	(40,050	)
Distributed income of equity investees		622			1,223			1,164			1,650			1,224
Amortization of capitalized interest		4,899			4,277			3,840			3,557			3,538
Fixed charges - per below		101,574			129,307			138,007			132,146			147,077
Less:
Capitalized interest		(12,835	)		(12,150	)		(6,803	)		(3,137	)		(2,560	)
Earnings before fixed charges	$	146,264		$	92,728		$	143,022		$	169,534		$	109,229
Fixed charges and Preferred Distributions:
Interest expense from continuing operations (including amortization)	$	88,083		$	116,511		$	130,621		$	127,585		$	142,982
Capitalized interest		12,835			12,150			6,803			3,137			2,560
Ground leases and other		656			646			583			1,424			1,535
Total Fixed Charges		101,574			129,307			138,007			132,146			147,077
Income allocated to preferred shareholders		6,900			6,900			6,900			6,900			10,405
Total Preferred Distributions		6,900			6,900			6,900			6,900			10,405
Total combined fixed charges and preferred distributions	$	108,474		$	136,207		$	144,907		$	139,046		$	157,482
Ratio of earnings to combined fixed charges and preferred distributions		1.35		(a)			(a)			1.22			(a)

(a) Due to the registrant's loss in the period, the coverage ratio was less than 1:1.  The registrant must generate additional earnings of $43,479 for the year ended December 31, 2015, $1,885 for the year ended December 31, 2014 and $48,253 for the year ended December 31, 2012 to achieve a coverage ratio of 1:1.