Schedule III - Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		$ 349,352
Initial Costs
Land		3,173,913
Buildings & Improvements		5,681,985
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		8,697,058
Total Costs
Land		3,173,913
Buildings & Improvements		14,379,043
Total		17,552,956	[1]	$ 14,181,780	$ 12,178,255	$ 10,632,518
Accumulated Depreciation		(2,708,918)	[2]	$ (2,268,087)	$ (1,880,236)	$ (1,554,546)
Net Cost Basis		$ 14,844,038
Buildings and building improvements | Maximum
Total Costs
Property, Plant and Equipment, Useful Life		40 years
Land improvements | Maximum
Total Costs
Property, Plant and Equipment, Useful Life		20 years
North America
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		$ 349,352
Initial Costs
Land		3,173,913
Buildings & Improvements		5,681,985
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		8,662,711
Total Costs
Land		3,173,913
Buildings & Improvements		14,344,696
Total	[1]	17,518,609
Accumulated Depreciation	[2]	(2,704,657)
Net Cost Basis		14,813,952
Alexandria Center at Kendall Square
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		279,668
Buildings & Improvements		205,491
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		1,440,945
Total Costs
Land		279,668
Buildings & Improvements		1,646,436
Total	[1]	1,926,104
Accumulated Depreciation	[2]	(241,801)
Net Cost Basis		1,684,303
Alexandria Technology Square®
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		619,658
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		234,311
Total Costs
Land		0
Buildings & Improvements		853,969
Total	[1]	853,969
Accumulated Depreciation	[2]	(251,017)
Net Cost Basis		602,952
The Arsenal on the Charles
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		181,797
Buildings & Improvements		354,611
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		1,464
Total Costs
Land		181,797
Buildings & Improvements		356,075
Total	[1]	537,872
Accumulated Depreciation	[2]	0
Net Cost Basis		537,872
Alexandria Center at One Kendall Square
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		208,411
Initial Costs
Land		349,952
Buildings & Improvements		483,816
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		282,309
Total Costs
Land		349,952
Buildings & Improvements		766,125
Total	[1]	1,116,077
Accumulated Depreciation	[2]	(80,606)
Net Cost Basis		1,035,471
480/500 Arsenal Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		9,773
Buildings & Improvements		12,773
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		88,226
Total Costs
Land		9,773
Buildings & Improvements		100,999
Total	[1]	110,772
Accumulated Depreciation	[2]	(40,689)
Net Cost Basis		70,083
640 Memorial Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		81,175
Initial Costs
Land		0
Buildings & Improvements		174,878
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		741
Total Costs
Land		0
Buildings & Improvements		175,619
Total	[1]	175,619
Accumulated Depreciation	[2]	(36,598)
Net Cost Basis		139,021
780/790 Memorial Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		54,490
Total Costs
Land		0
Buildings & Improvements		54,490
Total	[1]	54,490
Accumulated Depreciation	[2]	(24,387)
Net Cost Basis		30,103
167 Sidney Street/99 Erie Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		12,613
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		13,733
Total Costs
Land		0
Buildings & Improvements		26,346
Total	[1]	26,346
Accumulated Depreciation	[2]	(7,383)
Net Cost Basis		18,963
79/96 Thirteenth Street Charlestown Navy Yard
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		6,247
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		8,706
Total Costs
Land		0
Buildings & Improvements		14,953
Total	[1]	14,953
Accumulated Depreciation	[2]	(5,661)
Net Cost Basis		9,292
5 Necco Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		41,958
Buildings & Improvements		41,546
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		582
Total Costs
Land		41,958
Buildings & Improvements		42,128
Total	[1]	84,086
Accumulated Depreciation	[2]	(250)
Net Cost Basis		83,836
10 Necco Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		67,743
Buildings & Improvements		13,357
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		4,202
Total Costs
Land		67,743
Buildings & Improvements		17,559
Total	[1]	85,302
Accumulated Depreciation	[2]	(255)
Net Cost Basis		85,047
15 Necco Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		172,114
Total Costs
Land		0
Buildings & Improvements		172,114
Total	[1]	172,114
Accumulated Depreciation	[2]	0
Net Cost Basis		172,114
99 A Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		31,671
Buildings & Improvements		878
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		9,306
Total Costs
Land		31,671
Buildings & Improvements		10,184
Total	[1]	41,855
Accumulated Depreciation	[2]	(938)
Net Cost Basis		40,917
Alexandria Park at 128
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		10,439
Buildings & Improvements		41,596
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		79,501
Total Costs
Land		10,439
Buildings & Improvements		121,097
Total	[1]	131,536
Accumulated Depreciation	[2]	(44,353)
Net Cost Basis		87,183
225, 266, and 275 Second Avenue
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		17,086
Buildings & Improvements		69,994
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		60,552
Total Costs
Land		17,086
Buildings & Improvements		130,546
Total	[1]	147,632
Accumulated Depreciation	[2]	(19,074)
Net Cost Basis		128,558
100 Tech Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		11,977
Buildings & Improvements		85,620
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		235
Total Costs
Land		11,977
Buildings & Improvements		85,855
Total	[1]	97,832
Accumulated Depreciation	[2]	(4,765)
Net Cost Basis		93,067
19 Presidential Way
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		12,833
Buildings & Improvements		27,333
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		23,133
Total Costs
Land		12,833
Buildings & Improvements		50,466
Total	[1]	63,299
Accumulated Depreciation	[2]	(17,114)
Net Cost Basis		46,185
100 Beaver Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,466
Buildings & Improvements		9,046
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		22,201
Total Costs
Land		1,466
Buildings & Improvements		31,247
Total	[1]	32,713
Accumulated Depreciation	[2]	(7,129)
Net Cost Basis		25,584
285 Bear Hill Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		422
Buildings & Improvements		3,538
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		6,905
Total Costs
Land		422
Buildings & Improvements		10,443
Total	[1]	10,865
Accumulated Depreciation	[2]	(2,417)
Net Cost Basis		8,448
111 and 130 Forbes Boulevard
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		3,146
Buildings & Improvements		15,725
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		3,165
Total Costs
Land		3,146
Buildings & Improvements		18,890
Total	[1]	22,036
Accumulated Depreciation	[2]	(6,284)
Net Cost Basis		15,752
20 Walkup Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		2,261
Buildings & Improvements		7,099
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		9,029
Total Costs
Land		2,261
Buildings & Improvements		16,128
Total	[1]	18,389
Accumulated Depreciation	[2]	(3,833)
Net Cost Basis		14,556
30 Bearfoot Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,220
Buildings & Improvements		22,375
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		59
Total Costs
Land		1,220
Buildings & Improvements		22,434
Total	[1]	23,654
Accumulated Depreciation	[2]	(21,533)
Net Cost Basis		2,121
Alexandria Center for Science and Technology
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		211,450
Buildings & Improvements		210,211
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		442,961
Total Costs
Land		211,450
Buildings & Improvements		653,172
Total	[1]	864,622
Accumulated Depreciation	[2]	(145,182)
Net Cost Basis		719,440
510 Townsend Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		52,105
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		174,287
Total Costs
Land		52,105
Buildings & Improvements		174,287
Total	[1]	226,392
Accumulated Depreciation	[2]	(12,754)
Net Cost Basis		213,638
945 Market Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		99,294
Buildings & Improvements		86,360
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		5,770
Total Costs
Land		99,294
Buildings & Improvements		92,130
Total	[1]	191,424
Accumulated Depreciation	[2]	0
Net Cost Basis		191,424
505 Brannan Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		31,710
Buildings & Improvements		2,540
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		107,671
Total Costs
Land		31,710
Buildings & Improvements		110,211
Total	[1]	141,921
Accumulated Depreciation	[2]	(6,726)
Net Cost Basis		135,195
260 Townsend Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		27,561
Initial Costs
Land		26,392
Buildings & Improvements		33,921
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		471
Total Costs
Land		26,392
Buildings & Improvements		34,392
Total	[1]	60,784
Accumulated Depreciation	[2]	(714)
Net Cost Basis		60,070
88 Bluxome Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		148,551
Buildings & Improvements		21,514
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		52,292
Total Costs
Land		148,551
Buildings & Improvements		73,806
Total	[1]	222,357
Accumulated Depreciation	[2]	(7,951)
Net Cost Basis		214,406
213, 249, 259, 269, and 279 East Grand Avenue
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		59,199
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		542,156
Total Costs
Land		59,199
Buildings & Improvements		542,156
Total	[1]	601,355
Accumulated Depreciation	[2]	(47,537)
Net Cost Basis		553,818
Alexandria Technology Center - Gateway
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		71,005
Buildings & Improvements		168,894
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		101,122
Total Costs
Land		71,005
Buildings & Improvements		270,016
Total	[1]	341,021
Accumulated Depreciation	[2]	(65,979)
Net Cost Basis		275,042
201 Haskins Way
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		32,245
Buildings & Improvements		1,287
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		118,801
Total Costs
Land		32,245
Buildings & Improvements		120,088
Total	[1]	152,333
Accumulated Depreciation	[2]	(1,445)
Net Cost Basis		150,888
400 and 450 East Jamie Court
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		117,282
Total Costs
Land		0
Buildings & Improvements		117,282
Total	[1]	117,282
Accumulated Depreciation	[2]	(47,091)
Net Cost Basis		70,191
500 Forbes Boulevard
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		35,596
Buildings & Improvements		69,091
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		17,503
Total Costs
Land		35,596
Buildings & Improvements		86,594
Total	[1]	122,190
Accumulated Depreciation	[2]	(27,166)
Net Cost Basis		95,024
7000 Shoreline Court
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		7,038
Buildings & Improvements		39,704
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		19,454
Total Costs
Land		7,038
Buildings & Improvements		59,158
Total	[1]	66,196
Accumulated Depreciation	[2]	(19,317)
Net Cost Basis		46,879
341 and 343 Oyster Point Boulevard
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		7,038
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		43,433
Total Costs
Land		7,038
Buildings & Improvements		43,433
Total	[1]	50,471
Accumulated Depreciation	[2]	(17,640)
Net Cost Basis		32,831
839 - 863 Mitten and 866 Malcolm
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		3,211
Buildings & Improvements		8,665
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		24,070
Total Costs
Land		3,211
Buildings & Improvements		32,735
Total	[1]	35,946
Accumulated Depreciation	[2]	(13,318)
Net Cost Basis		22,628
Alexandria District for Science and Technology
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		87,566
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		190,881
Total Costs
Land		87,566
Buildings & Improvements		190,881
Total	[1]	278,447
Accumulated Depreciation	[2]	0
Net Cost Basis		278,447
3825 and 3875 Fabian Way
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		194,424
Buildings & Improvements		54,519
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		872
Total Costs
Land		194,424
Buildings & Improvements		55,391
Total	[1]	249,815
Accumulated Depreciation	[2]	(119)
Net Cost Basis		249,696
Alexandria Stanford Life Science District
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		152,437
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		5,536
Total Costs
Land		0
Buildings & Improvements		157,973
Total	[1]	157,973
Accumulated Depreciation	[2]	(11,248)
Net Cost Basis		146,725
Alexandria PARC
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		72,859
Buildings & Improvements		53,309
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		16,637
Total Costs
Land		72,859
Buildings & Improvements		69,946
Total	[1]	142,805
Accumulated Depreciation	[2]	(3,265)
Net Cost Basis		139,540
960 Industrial Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		79,969
Buildings & Improvements		5,558
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		19,589
Total Costs
Land		79,969
Buildings & Improvements		25,147
Total	[1]	105,116
Accumulated Depreciation	[2]	(4,852)
Net Cost Basis		100,264
2425 Garcia Avenue & 2450 Bayshore Parkway
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		728
Initial Costs
Land		1,512
Buildings & Improvements		21,323
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		26,261
Total Costs
Land		1,512
Buildings & Improvements		47,584
Total	[1]	49,096
Accumulated Depreciation	[2]	(22,637)
Net Cost Basis		26,459
Shoreway Science Center
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		20,049
Buildings & Improvements		48,554
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		152
Total Costs
Land		20,049
Buildings & Improvements		48,706
Total	[1]	68,755
Accumulated Depreciation	[2]	(1,262)
Net Cost Basis		67,493
1450 Page Mill Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		84,467
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		104
Total Costs
Land		0
Buildings & Improvements		84,571
Total	[1]	84,571
Accumulated Depreciation	[2]	(5,590)
Net Cost Basis		78,981
3350 West Bayshore Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		4,800
Buildings & Improvements		6,693
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		20,325
Total Costs
Land		4,800
Buildings & Improvements		27,018
Total	[1]	31,818
Accumulated Depreciation	[2]	(5,726)
Net Cost Basis		26,092
2625, 2627, and 2631 Hanover Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		6,628
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		11,910
Total Costs
Land		0
Buildings & Improvements		18,538
Total	[1]	18,538
Accumulated Depreciation	[2]	(10,424)
Net Cost Basis		8,114
Alexandria Center for Life Science
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		848,102
Total Costs
Land		0
Buildings & Improvements		848,102
Total	[1]	848,102
Accumulated Depreciation	[2]	(170,156)
Net Cost Basis		677,946
219 East 42nd Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		141,266
Buildings & Improvements		63,312
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		2,149
Total Costs
Land		141,266
Buildings & Improvements		65,461
Total	[1]	206,727
Accumulated Depreciation	[2]	(13,573)
Net Cost Basis		193,154
47-50 30th Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		25,000
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		2,120
Total Costs
Land		25,000
Buildings & Improvements		2,120
Total	[1]	27,120
Accumulated Depreciation	[2]	0
Net Cost Basis		27,120
Alexandria Center - Long Island City
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		22,746
Buildings & Improvements		53,093
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		13,283
Total Costs
Land		22,746
Buildings & Improvements		66,376
Total	[1]	89,122
Accumulated Depreciation	[2]	(369)
Net Cost Basis		88,753
ARE Spectrum
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		32,361
Buildings & Improvements		80,957
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		203,705
Total Costs
Land		32,361
Buildings & Improvements		284,662
Total	[1]	317,023
Accumulated Depreciation	[2]	(55,306)
Net Cost Basis		261,717
ARE Torrey Ridge
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		22,124
Buildings & Improvements		152,840
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		52,470
Total Costs
Land		22,124
Buildings & Improvements		205,310
Total	[1]	227,434
Accumulated Depreciation	[2]	(32,702)
Net Cost Basis		194,732
ARE Sunrise
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		6,118
Buildings & Improvements		17,947
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		82,874
Total Costs
Land		6,118
Buildings & Improvements		100,821
Total	[1]	106,939
Accumulated Depreciation	[2]	(51,853)
Net Cost Basis		55,086
ARE Nautilus
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		6,684
Buildings & Improvements		27,600
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		123,685
Total Costs
Land		6,684
Buildings & Improvements		151,285
Total	[1]	157,969
Accumulated Depreciation	[2]	(44,910)
Net Cost Basis		113,059
3545 Cray Court
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		31,477
Initial Costs
Land		7,056
Buildings & Improvements		53,944
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		11,537
Total Costs
Land		7,056
Buildings & Improvements		65,481
Total	[1]	72,537
Accumulated Depreciation	[2]	(40,636)
Net Cost Basis		31,901
11119 North Torrey Pines Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		9,994
Buildings & Improvements		37,099
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		34,147
Total Costs
Land		9,994
Buildings & Improvements		71,246
Total	[1]	81,240
Accumulated Depreciation	[2]	(20,799)
Net Cost Basis		60,441
Campus Pointe by Alexandria
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		88,016
Buildings & Improvements		393,713
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		441,342
Total Costs
Land		88,016
Buildings & Improvements		835,055
Total	[1]	923,071
Accumulated Depreciation	[2]	(110,603)
Net Cost Basis		812,468
5200 Illumina Way
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		38,340
Buildings & Improvements		96,606
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		195,156
Total Costs
Land		38,340
Buildings & Improvements		291,762
Total	[1]	330,102
Accumulated Depreciation	[2]	(49,000)
Net Cost Basis		281,102
University District
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		18,221
Buildings & Improvements		48,840
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		203,245
Total Costs
Land		18,221
Buildings & Improvements		252,085
Total	[1]	270,306
Accumulated Depreciation	[2]	(82,398)
Net Cost Basis		187,908
SD Tech by Alexandria
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		54,648
Buildings & Improvements		169,485
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		4,835
Total Costs
Land		54,648
Buildings & Improvements		174,320
Total	[1]	228,968
Accumulated Depreciation	[2]	(563)
Net Cost Basis		228,405
Summers Ridge Science Park
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		21,154
Buildings & Improvements		102,046
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		3,491
Total Costs
Land		21,154
Buildings & Improvements		105,537
Total	[1]	126,691
Accumulated Depreciation	[2]	(5,277)
Net Cost Basis		121,414
10121 and 10151 Barnes Canyon Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		4,608
Buildings & Improvements		5,100
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		19,110
Total Costs
Land		4,608
Buildings & Improvements		24,210
Total	[1]	28,818
Accumulated Depreciation	[2]	(4,103)
Net Cost Basis		24,715
ARE Portola
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		6,991
Buildings & Improvements		25,153
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		39,893
Total Costs
Land		6,991
Buildings & Improvements		65,046
Total	[1]	72,037
Accumulated Depreciation	[2]	(12,389)
Net Cost Basis		59,648
5810/5820 Nancy Ridge Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		5,476
Buildings & Improvements		28,682
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		(52)
Total Costs
Land		5,476
Buildings & Improvements		28,630
Total	[1]	34,106
Accumulated Depreciation	[2]	(10,137)
Net Cost Basis		23,969
7330 Carroll Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		2,650
Buildings & Improvements		19,878
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		1,912
Total Costs
Land		2,650
Buildings & Improvements		21,790
Total	[1]	24,440
Accumulated Depreciation	[2]	(5,860)
Net Cost Basis		18,580
5871 Oberlin Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,349
Buildings & Improvements		8,016
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		6,019
Total Costs
Land		1,349
Buildings & Improvements		14,035
Total	[1]	15,384
Accumulated Depreciation	[2]	(2,232)
Net Cost Basis		13,152
Vista Wateridge I & II
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		3,286
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		735
Total Costs
Land		3,286
Buildings & Improvements		735
Total	[1]	4,021
Accumulated Depreciation	[2]	0
Net Cost Basis		4,021
3985, 4025, 4031, and 4045 Sorrento Valley Boulevard
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		18,177
Buildings & Improvements		35,178
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		31,920
Total Costs
Land		18,177
Buildings & Improvements		67,098
Total	[1]	85,275
Accumulated Depreciation	[2]	(24,580)
Net Cost Basis		60,695
11025, 11035, 11045, 11055, 11065, and 11075 Roselle Street
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		4,156
Buildings & Improvements		11,571
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		42,744
Total Costs
Land		4,156
Buildings & Improvements		54,315
Total	[1]	58,471
Accumulated Depreciation	[2]	(12,252)
Net Cost Basis		46,219
13112 Evening Creek Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		7,393
Buildings & Improvements		27,950
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		232
Total Costs
Land		7,393
Buildings & Improvements		28,182
Total	[1]	35,575
Accumulated Depreciation	[2]	(13,055)
Net Cost Basis		22,520
Townsgate by Alexandria
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		16,416
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		3,620
Total Costs
Land		16,416
Buildings & Improvements		3,620
Total	[1]	20,036
Accumulated Depreciation	[2]	0
Net Cost Basis		20,036
The Eastlake Life Science Campus by Alexandria - North Campus
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		24,205
Buildings & Improvements		35,296
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		391,761
Total Costs
Land		24,205
Buildings & Improvements		427,057
Total	[1]	451,262
Accumulated Depreciation	[2]	(85,863)
Net Cost Basis		365,399
The Eastlake Life Science Campus by Alexandria - South Campus
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		22,987
Buildings & Improvements		47,149
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		100,758
Total Costs
Land		22,987
Buildings & Improvements		147,907
Total	[1]	170,894
Accumulated Depreciation	[2]	(45,301)
Net Cost Basis		125,593
400 Dexter Avenue North
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		11,342
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		211,045
Total Costs
Land		11,342
Buildings & Improvements		211,045
Total	[1]	222,387
Accumulated Depreciation	[2]	(20,303)
Net Cost Basis		202,084
2301 5th Avenue
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		6,543
Buildings & Improvements		76,180
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		1,130
Total Costs
Land		6,543
Buildings & Improvements		77,310
Total	[1]	83,853
Accumulated Depreciation	[2]	(2,980)
Net Cost Basis		80,873
219 Terry Avenue North
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,819
Buildings & Improvements		2,302
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		19,892
Total Costs
Land		1,819
Buildings & Improvements		22,194
Total	[1]	24,013
Accumulated Depreciation	[2]	(7,143)
Net Cost Basis		16,870
601 Dexter Avenue North
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		29,412
Buildings & Improvements		408
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		1,541
Total Costs
Land		29,412
Buildings & Improvements		1,949
Total	[1]	31,361
Accumulated Depreciation	[2]	0
Net Cost Basis		31,361
701 Dexter Avenue North
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		35,316
Buildings & Improvements		719
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		6,149
Total Costs
Land		35,316
Buildings & Improvements		6,868
Total	[1]	42,184
Accumulated Depreciation	[2]	(340)
Net Cost Basis		41,844
3000/3018 Western Avenue
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,432
Buildings & Improvements		7,497
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		24,181
Total Costs
Land		1,432
Buildings & Improvements		31,678
Total	[1]	33,110
Accumulated Depreciation	[2]	(16,287)
Net Cost Basis		16,823
410 West Harrison/410 Elliott Avenue West
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		3,857
Buildings & Improvements		1,989
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		11,266
Total Costs
Land		3,857
Buildings & Improvements		13,255
Total	[1]	17,112
Accumulated Depreciation	[2]	(5,707)
Net Cost Basis		11,405
9980, 9900, 9920, and 9950 Medical Center Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		20,219
Buildings & Improvements		112,543
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		180,483
Total Costs
Land		20,219
Buildings & Improvements		293,026
Total	[1]	313,245
Accumulated Depreciation	[2]	(76,214)
Net Cost Basis		237,031
9704, 9708, 9712, and 9714 Medical Center Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		10,258
Buildings & Improvements		74,173
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		766
Total Costs
Land		10,258
Buildings & Improvements		74,939
Total	[1]	85,197
Accumulated Depreciation	[2]	(3,229)
Net Cost Basis		81,968
1330 Piccard Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		2,800
Buildings & Improvements		11,533
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		34,933
Total Costs
Land		2,800
Buildings & Improvements		46,466
Total	[1]	49,266
Accumulated Depreciation	[2]	(18,830)
Net Cost Basis		30,436
1500 and 1550 East Gude Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,523
Buildings & Improvements		7,731
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		6,445
Total Costs
Land		1,523
Buildings & Improvements		14,176
Total	[1]	15,699
Accumulated Depreciation	[2]	(8,979)
Net Cost Basis		6,720
14920 and 15010 Broschart Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		4,904
Buildings & Improvements		15,846
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		5,471
Total Costs
Land		4,904
Buildings & Improvements		21,317
Total	[1]	26,221
Accumulated Depreciation	[2]	(5,979)
Net Cost Basis		20,242
1405 Research Boulevard
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		899
Buildings & Improvements		21,946
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		14,363
Total Costs
Land		899
Buildings & Improvements		36,309
Total	[1]	37,208
Accumulated Depreciation	[2]	(14,621)
Net Cost Basis		22,587
5 Research Place
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,466
Buildings & Improvements		5,708
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		28,981
Total Costs
Land		1,466
Buildings & Improvements		34,689
Total	[1]	36,155
Accumulated Depreciation	[2]	(14,768)
Net Cost Basis		21,387
5 Research Court
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,647
Buildings & Improvements		13,258
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		24,060
Total Costs
Land		1,647
Buildings & Improvements		37,318
Total	[1]	38,965
Accumulated Depreciation	[2]	(14,379)
Net Cost Basis		24,586
9920 Belward Campus Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		2,732
Buildings & Improvements		12,308
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		76
Total Costs
Land		2,732
Buildings & Improvements		12,384
Total	[1]	15,116
Accumulated Depreciation	[2]	(527)
Net Cost Basis		14,589
12301 Parklawn Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,476
Buildings & Improvements		7,267
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		1,184
Total Costs
Land		1,476
Buildings & Improvements		8,451
Total	[1]	9,927
Accumulated Depreciation	[2]	(2,949)
Net Cost Basis		6,978
14200 Shady Grove Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		25,000
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		903
Total Costs
Land		25,000
Buildings & Improvements		903
Total	[1]	25,903
Accumulated Depreciation	[2]	0
Net Cost Basis		25,903
Alexandria Technology Center - Gaithersburg I
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		20,980
Buildings & Improvements		121,952
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		39,799
Total Costs
Land		20,980
Buildings & Improvements		161,751
Total	[1]	182,731
Accumulated Depreciation	[2]	(36,204)
Net Cost Basis		146,527
Alexandria Technology Center - Gaithersburg II
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		6,938
Buildings & Improvements		34,685
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		33,085
Total Costs
Land		6,938
Buildings & Improvements		67,770
Total	[1]	74,708
Accumulated Depreciation	[2]	(27,742)
Net Cost Basis		46,966
401 Professional Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,129
Buildings & Improvements		6,941
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		10,125
Total Costs
Land		1,129
Buildings & Improvements		17,066
Total	[1]	18,195
Accumulated Depreciation	[2]	(7,192)
Net Cost Basis		11,003
950 Wind River Lane
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		2,400
Buildings & Improvements		10,620
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		1,050
Total Costs
Land		2,400
Buildings & Improvements		11,670
Total	[1]	14,070
Accumulated Depreciation	[2]	(3,348)
Net Cost Basis		10,722
620 Professional Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		784
Buildings & Improvements		4,705
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		7,353
Total Costs
Land		784
Buildings & Improvements		12,058
Total	[1]	12,842
Accumulated Depreciation	[2]	(5,490)
Net Cost Basis		7,352
8000/9000/10000 Virginia Manor Road
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		13,679
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		7,189
Total Costs
Land		0
Buildings & Improvements		20,868
Total	[1]	20,868
Accumulated Depreciation	[2]	(10,460)
Net Cost Basis		10,408
14225 Newbrook Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		4,800
Buildings & Improvements		27,639
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		11,562
Total Costs
Land		4,800
Buildings & Improvements		39,201
Total	[1]	44,001
Accumulated Depreciation	[2]	(17,364)
Net Cost Basis		26,637
Alexandria Technology Center - Alston
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,430
Buildings & Improvements		17,482
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		31,096
Total Costs
Land		1,430
Buildings & Improvements		48,578
Total	[1]	50,008
Accumulated Depreciation	[2]	(23,693)
Net Cost Basis		26,315
Alexandria Center for AgTech, Phase I – Research Triangle
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		2,000
Buildings & Improvements		6,756
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		69,863
Total Costs
Land		2,000
Buildings & Improvements		76,619
Total	[1]	78,619
Accumulated Depreciation	[2]	(1,562)
Net Cost Basis		77,057
Alexandria Center for AgTech, Phase II - Research Triangle
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		800
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		9,663
Total Costs
Land		800
Buildings & Improvements		9,663
Total	[1]	10,463
Accumulated Depreciation	[2]	0
Net Cost Basis		10,463
108/110/112/114 Alexander Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		376
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		43,195
Total Costs
Land		0
Buildings & Improvements		43,571
Total	[1]	43,571
Accumulated Depreciation	[2]	(19,650)
Net Cost Basis		23,921
Alexandria Innovation Center - Research Triangle
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,065
Buildings & Improvements		21,218
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		30,249
Total Costs
Land		1,065
Buildings & Improvements		51,467
Total	[1]	52,532
Accumulated Depreciation	[2]	(18,709)
Net Cost Basis		33,823
6 Davis Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		9,029
Buildings & Improvements		10,712
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		20,318
Total Costs
Land		9,029
Buildings & Improvements		31,030
Total	[1]	40,059
Accumulated Depreciation	[2]	(12,914)
Net Cost Basis		27,145
7 Triangle Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		701
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		32,502
Total Costs
Land		701
Buildings & Improvements		32,502
Total	[1]	33,203
Accumulated Depreciation	[2]	(7,289)
Net Cost Basis		25,914
2525 East NC Highway 54
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		713
Buildings & Improvements		12,827
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		20,751
Total Costs
Land		713
Buildings & Improvements		33,578
Total	[1]	34,291
Accumulated Depreciation	[2]	(9,480)
Net Cost Basis		24,811
407 Davis Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		1,229
Buildings & Improvements		17,733
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		712
Total Costs
Land		1,229
Buildings & Improvements		18,445
Total	[1]	19,674
Accumulated Depreciation	[2]	(3,449)
Net Cost Basis		16,225
601 Keystone Park Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		785
Buildings & Improvements		11,546
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		7,103
Total Costs
Land		785
Buildings & Improvements		18,649
Total	[1]	19,434
Accumulated Depreciation	[2]	(6,034)
Net Cost Basis		13,400
6040 George Watts Hill Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		26,344
Total Costs
Land		0
Buildings & Improvements		26,344
Total	[1]	26,344
Accumulated Depreciation	[2]	(3,127)
Net Cost Basis		23,217
5 Triangle Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		161
Buildings & Improvements		3,409
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		7,933
Total Costs
Land		161
Buildings & Improvements		11,342
Total	[1]	11,503
Accumulated Depreciation	[2]	(5,248)
Net Cost Basis		6,255
6101 Quadrangle Drive
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		951
Buildings & Improvements		3,982
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		11,146
Total Costs
Land		951
Buildings & Improvements		15,128
Total	[1]	16,079
Accumulated Depreciation	[2]	(3,281)
Net Cost Basis		12,798
Canada
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		10,350
Buildings & Improvements		43,884
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		15,208
Total Costs
Land		10,350
Buildings & Improvements		59,092
Total	[1]	69,442
Accumulated Depreciation	[2]	(22,245)
Net Cost Basis		47,197
Various
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		64,176
Buildings & Improvements		115,107
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		217,354
Total Costs
Land		64,176
Buildings & Improvements		332,461
Total	[1]	396,637
Accumulated Depreciation	[2]	(58,994)
Net Cost Basis		337,643
China
Consolidated Financial Statement Schedule of Rental Properties and Accumulated Depreciation
Encumbrances		0
Initial Costs
Land		0
Buildings & Improvements		0
Costs Capitalized Subsequent to Acquisition
Buildings & Improvements		34,347
Total Costs
Land		0
Buildings & Improvements		34,347
Total	[1]	34,347
Accumulated Depreciation	[2]	(4,261)
Net Cost Basis		$ 30,086

[1] The aggregate cost of real estate for federal income tax purposes is not materially different from the cost basis under GAAP (unaudited).

[2] The depreciable life ranges up to 40 years for buildings and improvements, up to 20 years for land improvements, and the term of the respective lease for tenant improvements.