Schedule III Properties And Accumulated Depreciation

12 Months Ended

Dec. 31, 2015

Properties And Accumulated Depreciation

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition				Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs		Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
36 NE 2nd Street	Miami	—	1,942	—	24,184	11,693		—		1,942	—	35,877	37,819	(13,839	)	2002	(A)
2323 Bryan Street	Dallas	—	1,838	—	77,604	48,808		—		1,838	—	126,412	128,250	(55,285	)	2002	(A)
300 Boulevard East	New York	—	5,140	—	48,526	61,457		—		5,140	—	109,983	115,123	(56,085	)	2002	(A)
2334 Lundy Place	Silicon Valley	36,714	3,607	—	23,008	67		—		3,607	—	23,075	26,682	(9,201	)	2002	(A)
34551 Ardenwood Boulevard 1-4	Silicon Valley	50,477	15,330	—	32,419	9,076		—		15,330	—	41,495	56,825	(15,684	)	2003	(A)
2440 Marsh Lane	Dallas	—	1,477	—	10,330	71,942		—		1,477	—	82,272	83,749	(48,495	)	2003	(A)
2010 East Centennial Circle	Phoenix	—	—	1,477	16,472	57		—		—	1,322	16,529	17,851	(6,443	)	2003	(A)
375 Riverside Parkway	Atlanta	—	1,250	—	11,578	31,507		—		1,250	—	43,085	44,335	(23,110	)	2003	(A)
4849 Alpha Road	Dallas	—	2,983	—	10,650	42,867		—		2,983	—	53,517	56,500	(21,289	)	2004	(A)
600 West Seventh Street	Los Angeles	46,000	18,478	—	50,824	55,587		—		18,478	—	106,411	124,889	(53,335	)	2004	(A)
2045 & 2055 LaFayette Street	Silicon Valley	61,437	6,065	—	43,817	20		—		6,065	—	43,837	49,902	(16,221	)	2004	(A)
11830 Webb Chapel Road	Dallas	—	5,881	—	34,473	2,102		—		5,881	—	36,575	42,456	(14,300	)	2004	(A)
150 South First Street	Silicon Valley	48,484	2,068	—	29,214	1,495		—		2,068	—	30,709	32,777	(10,742	)	2004	(A)
200 Paul Avenue	San Francisco	—	14,427	—	75,777	81,780		—		14,427	—	157,557	171,984	(64,231	)	2004	(A)
1100 Space Park Drive	Silicon Valley	50,423	5,130	—	18,206	34,478		—		5,130	—	52,684	57,814	(26,014	)	2004	(A)
3015 Winona Avenue	Los Angeles	—	6,534	—	8,356	6		—		6,534	—	8,362	14,896	(3,280	)	2004	(A)
1125 Energy Park Drive	Minneapolis	—	2,775	—	10,761	(5,701	)	(5,900	)	2,775	—	5,060	7,835	(3,890	)	2005	(A)
350 East Cermak Road	Chicago	—	8,466	—	103,232	225,410		—		8,620	—	328,488	337,108	(164,451	)	2005	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
8534 Concord Center Drive	Denver	—	2,181	—	11,561	121		—	2,181	—	11,682	13,863	(4,599	)	2005	(A)
2401 Walsh Street	Silicon Valley	—	5,775	—	19,267	37		—	5,775	—	19,304	25,079	(6,933	)	2005	(A)
2403 Walsh Street	Silicon Valley	—	5,514	—	11,695	48		—	5,514	—	11,743	17,257	(4,500	)	2005	(A)
200 North Nash Street	Los Angeles	—	4,562	—	12,503	232		—	4,562	—	12,735	17,297	(5,313	)	2005	(A)
731 East Trade Street	Charlotte	3,847	1,748	—	5,727	249		—	1,748	—	5,976	7,724	(2,043	)	2005	(A)
113 North Myers	Charlotte	—	1,098	—	3,127	2,059		—	1,098	—	5,186	6,284	(2,013	)	2005	(A)
125 North Myers	Charlotte	—	1,271	—	3,738	6,175		—	1,271	—	9,913	11,184	(6,519	)	2005	(A)
Paul van Vlissingenstraat 16	Amsterdam	—	—	—	15,255	23,791		—	—	—	39,046	39,046	(12,872	)	2005	(A)
600-780 S. Federal	Chicago	—	7,849	—	27,881	33,536		—	7,849	—	61,417	69,266	(13,488	)	2005	(A)
115 Second Avenue	Boston	—	1,691	—	12,569	11,556		—	1,691	—	24,125	25,816	(12,957	)	2005	(A)
Chemin de l’Epinglier 2	Geneva	—	—	—	20,071	(1,584	)	—	—	—	18,487	18,487	(6,300	)	2005	(A)
7500 Metro Center Drive	Austin	—	1,177	—	4,877	67,500		—	1,177	—	72,377	73,554	(5,775	)	2005	(A)
3 Corporate Place	New York	—	2,124	—	12,678	127,334		—	2,124	—	140,012	142,136	(67,989	)	2005	(A)
4025 Midway Road	Dallas	—	2,196	—	14,037	28,627		—	2,196	—	42,664	44,860	(24,747	)	2006	(A)
Clonshaugh Industrial Estate	Dublin	—	—	1,444	5,569	2,625		—	—	90	8,194	8,284	(4,793	)	2006	(A)
6800 Millcreek Drive	Toronto	—	1,657	—	11,352	2,279		—	1,657	—	13,631	15,288	(5,337	)	2006	(A)
101 Aquila Way	Atlanta	—	1,480	—	34,797	52		—	1,480	—	34,849	36,329	(11,827	)	2006	(A)
12001 North Freeway	Houston	—	6,965	—	23,492	145,311		—	6,965	—	168,803	175,768	(34,400	)	2006	(A)
120 E Van Buren	Phoenix	—	4,524	—	157,822	106,684		—	4,524	—	264,506	269,030	(101,945	)	2006	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
Gyroscoopweg 2E-2F	Amsterdam	—	—	—	13,450	(2,011	)	—	—	—	11,439	11,439	(3,978	)	2006	(A)
Clonshaugh Industrial Estate II	Dublin	—	—	—	—	75,735		—	—	—	75,735	75,735	(32,367	)	2006	(C)
600 Winter Street	Boston	—	1,429	—	6,228	456		—	1,429	—	6,684	8,113	(1,898	)	2006	(A)
2300 NW 89th Place	Miami	—	1,022	—	3,767	19		—	1,022	—	3,786	4,808	(1,450	)	2006	(A)
2055 East Technology Circle	Phoenix	—	—	—	8,519	27,522		—	—	—	36,041	36,041	(21,882	)	2006	(A)
114 Rue Ambroise Croizat	Paris	—	12,261	—	34,051	65,181		—	9,533	—	101,960	111,493	(39,419	)	2006	(A)
Unit 9, Blanchardstown Corporate Park	Dublin	—	1,927	—	40,024	14,850		—	1,573	—	55,228	56,801	(17,215	)	2006	(A)
111 8th Avenue	New York	—	—	—	17,688	16,993		—	—	—	34,681	34,681	(27,068	)	2006	(A)
8100 Boone Boulevard	N. Virginia	—	—	—	158	1,206		—	—	—	1,364	1,364	(1,119	)	2006	(A)
21110 Ridgetop Circle	N. Virginia	—	2,934	—	14,311	1,307		—	2,934	—	15,618	18,552	(4,756	)	2007	(A)
3011 Lafayette Street	Silicon Valley	—	3,354	—	10,305	49,187		—	3,354	—	59,492	62,846	(40,001	)	2007	(A)
44470 Chilum Place	N. Virginia	—	3,531	—	37,360	1		—	3,531	—	37,361	40,892	(9,065	)	2007	(A)
43881 Devin Shafron Drive	N. Virginia	—	4,653	—	23,631	91,427		—	4,653	—	115,058	119,711	(71,066	)	2007	(A)
43831 Devin Shafron Drive	N. Virginia	—	3,027	—	16,247	1,229		—	3,027	—	17,476	20,503	(4,541	)	2007	(A)
43791 Devin Shafron Drive	N. Virginia	—	3,490	—	17,444	77,073		—	3,490	—	94,517	98,007	(38,282	)	2007	(A)
Mundells Roundabout	London	—	31,354	—	—	53,426		—	23,489	—	61,291	84,780	(11,536	)	2007	(C)
1 Savvis Parkway	St. Louis	—	3,301	—	20,639	1,125		—	3,301	—	21,764	25,065	(5,553	)	2007	(A)
1500 Space Park Drive	Silicon Valley	—	6,732	—	6,325	46,078		—	4,106	—	55,029	59,135	(40,103	)	2007	(A)
Cressex 1	London	—	3,629	—	9,036	23,810		—	2,833	—	33,642	36,475	(16,677	)	2007	(A)
Naritaweg 52	Amsterdam	—	—	1,192	23,441	(5,812	)	—	—	888	17,629	18,517	(4,319	)	2007	(A)
1 St. Anne’s Boulevard	London	—	1,490	—	1,045	(534	)	—	1,128	—	873	2,001	(178	)	2007	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
2 St. Anne’s Boulevard	London	—	922	—	695	37,874		—	751	—	38,740	39,491	(4,255	)	2007	(A)
3 St. Anne’s Boulevard	London	—	22,079	—	16,351	96,759		—	16,563	—	118,626	135,189	(42,834	)	2007	(A)
365 South Randolphville Road	New York	—	3,019	—	17,404	275,759		—	3,019	—	293,163	296,182	(69,056	)	2008	(A)
701 & 717 Leonard Street	Dallas	—	2,165	—	9,934	826		—	2,165	—	10,760	12,925	(2,204	)	2008	(A)
Manchester Technopark	Manchester	—	—	—	23,918	(5,802	)	—	—	—	18,116	18,116	(3,919	)	2008	(A)
1201 Comstock Street	Silicon Valley	—	2,093	—	1,606	26,684		—	3,398	—	26,985	30,383	(14,210	)	2008	(A)
1550 Space Park Drive	Silicon Valley	—	2,301	—	766	1,747		—	1,929	—	2,885	4,814	—		2008	(A)
1525 Comstock Street	Silicon Valley	—	2,293	—	16,216	30,616		—	2,061	—	47,064	49,125	(23,287	)	2008	(A)
43830 Devin Shafron Drive	N. Virginia	—	5,509	—	—	73,468		—	5,509	—	73,468	78,977	(23,394	)	2009	(C)
1232 Alma Road	Dallas	—	2,267	—	3,740	63,830		—	2,266	—	67,571	69,837	(26,467	)	2009	(A)
900 Quality Way	Dallas	—	1,446	—	1,659	69,165		—	1,446	—	70,824	72,270	(10,008	)	2009	(A)
1400 N. Bowser Road	Dallas	—	2,041	—	3,389	6,181		—	3,636	—	7,975	11,611	—		2009	(A)
1301 International Parkway	Dallas	—	333	—	344	76,746		—	2,131	—	75,292	77,423	(238	)	2009	(A)
908 Quality Way	Dallas	—	6,730	—	4,493	13,693		—	2,067	—	22,849	24,916	(13,011	)	2009	(A)
904 Quality Way	Dallas	—	760	—	744	6,814		—	1,151	—	7,167	8,318	(624	)	2009	(A)
905 Security Row	Dallas	—	—	—	—	—		—	—	—	—	—	—		2009	(A)
1202 Alma Road	Dallas	—	—	—	—	44,349		—	1,921	—	42,428	44,349	(8,715	)	2009	(C)
1350 Duane	Silicon Valley	—	7,081	—	69,817	61		—	7,081	—	69,878	76,959	(11,175	)	2009	(A)
45901 & 45845 Nokes Boulevard	N. Virginia	—	3,437	—	28,785	450		—	3,437	—	29,235	32,672	(4,913	)	2009	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition		Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements	Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
21561 & 21571 Beaumeade Circle	N. Virginia	—	3,966	—	24,211	45	—	3,966	—	24,256	28,222	(3,767	)	2009	(A)
60 & 80 Merritt	New York	—	3,418	—	71,477	92,311	—	3,418	—	163,788	167,206	(22,425	)	2010	(A)
55 Middlesex	Boston	—	9,975	—	68,363	8,170	—	9,975	—	76,533	86,508	(15,970	)	2010	(A)
128 First Avenue	Boston	—	5,465	—	185,348	30,328	—	5,465	—	215,676	221,141	(44,598	)	2010	(A)
Cateringweg 5	Amsterdam	—	—	3,518	3,517	37,032	—	—	3,122	40,549	43,671	(4,959	)	2010	(A)
1725 Comstock Street	Silicon Valley	—	3,274	—	6,567	37,900	—	3,274	—	44,467	47,741	(15,944	)	2010	(A)
3015 and 3115 Alfred Street	Silicon Valley	—	6,533	—	3,725	55,645	—	6,562	—	59,341	65,903	(17,930	)	2010	(A)
365 Main Street	San Francisco	—	22,854	—	158,709	22,737	—	22,854	—	181,446	204,300	(32,439	)	2010	(A)
720 2nd Street	San Francisco	—	3,884	—	116,861	9,594	—	3,884	—	126,455	130,339	(20,522	)	2010	(A)
2260 East El Segundo	Los Angeles	—	11,053	—	51,397	13,205	—	11,053	—	64,602	75,655	(12,276	)	2010	(A)
2121 South Price Road	Phoenix	—	7,335	—	238,452	199,624	—	7,335	—	438,076	445,411	(67,279	)	2010	(A)
4030 La Fayette	N. Virginia	—	2,492	—	16,912	3,517	—	2,492	—	20,429	22,921	(3,788	)	2010	(A)
4040 La Fayette	N. Virginia	—	1,246	—	4,267	24,510	—	1,246	—	28,777	30,023	(1,773	)	2010	(A)
4050 La Fayette	N. Virginia	—	1,246	—	4,371	35,017	—	1,246	—	39,388	40,634	(13,601	)	2010	(A)
800 Central Expressway	Silicon Valley	—	8,976	—	18,155	130,755	—	8,294	—	149,592	157,886	(10,502	)	2010	(A)
29A International Business Park	Singapore	—	—	—	137,545	190,975	—	—	—	328,520	328,520	(56,103	)	2010	(A)
Loudoun Parkway North	N. Virginia	—	17,300	—	—	495,564	—	17,746	—	495,118	512,864	(32,184	)	2011	(C)
1-23 Templar Road	Sydney	—	11,173	—	—	62,906	—	7,181	—	66,898	74,079	(6,681	)	2011	(C)
Fountain Court	London	—	7,544	—	12,506	95,637	—	7,217	—	108,470	115,687	(9,995	)	2011	(C)
98 Radnor Drive	Melbourne	—	4,467	—	—	91,340	—	3,215	—	92,592	95,807	(10,456	)	2011	(C)
Cabot Street	Boston	—	2,386	—	—	58,806	—	2,427	—	58,765	61,192	(3,634	)	2011	(C)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
3825 NW Aloclek Place	Portland	—	1,689	—	—	57,201		—	1,689	—	57,201	58,890	(10,724	)	2011	(C)
11085 Sun Center Drive	Sacramento	—	2,490	—	21,509	1		—	2,490	—	21,510	24,000	(2,633	)	2011	(A)
Profile Park	Dublin	—	6,288	—	—	38,565		—	5,350	—	39,503	44,853	(530	)	2011	(C)
1506 Moran Road	N. Virginia	—	1,527	—	—	17,185		—	1,115	—	17,597	18,712	(1,348	)	2011	(A)
760 Doug Davis Drive	Atlanta	—	4,837	—	53,551	2,807		—	4,837	—	56,358	61,195	(7,712	)	2011	(A)
360 Spear Street	San Francisco	—	19,828	—	56,733	(854	)	—	19,828	—	55,879	75,707	(8,397	)	2011	(A)
2501 S. State Hwy 121	Dallas	—	23,137	—	93,943	14,828		—	23,137	—	108,771	131,908	(17,611	)	2012	(A)
9333, 9355, 9377 Grand Avenue	Chicago	—	5,686	—	14,515	259,630		—	5,960	—	273,871	279,831	(17,681	)	2012	(A)
8025 North Interstate 35	Austin	5,801	2,920	—	8,512	184		—	2,920	—	8,696	11,616	(1,095	)	2012	(A)
850 E Collins	Dallas	—	1,614	—	—	81,875		—	1,614	—	81,875	83,489	(6,925	)	2012	(C)
950 E Collins	Dallas	—	1,546	—	—	74,994		—	1,546	—	74,994	76,540	(3,621	)	2012	(C)
400 S. Akard	Dallas	—	10,075	—	62,730	1,690		—	10,075	—	64,420	74,495	(6,066	)	2012	(A)
410 Commerce Boulevard	New York	—	—	—	—	29,747		—	—	—	29,747	29,747	(5,625	)	2012	(C)
Unit B Prologis Park	London	—	1,683	—	104,728	(6,565	)	—	1,552	—	98,294	99,846	(9,903	)	2012	(A)
The Chess Building	London	—	—	7,355	219,273	9,773		—	—	7,217	229,046	236,263	(22,462	)	2012	(A)
Unit 21 Goldsworth Park	London	—	17,334	—	928,129	(26,882	)	—	15,800	—	902,781	918,581	(89,393	)	2012	(A)
11900 East Cornell	Denver	—	3,352	—	80,640	1,758		—	3,352	—	82,398	85,750	(8,837	)	2012	(A)
701 Union Boulevard	New York	—	10,045	—	6,755	27,878		—	10,045	—	34,633	44,678	—		2012	(A)
23 Waterloo Road	Sydney	—	7,112	—	3,868	(3,284	)	—	4,985	—	2,711	7,696	(244	)	2012	(A)
1 Rue Jean-Pierre	Paris	—	9,621	—	35,825	(8,029	)	—	7,921	—	29,496	37,417	(3,209	)	2012	(A)
Liet-dit le Christ de Saclay	Paris	—	3,402	—	3,090	(1,147	)	—	2,801	—	2,544	5,345	(357	)	2012	(A)
127 Rue de Paris	Paris	—	8,637	—	10,838	(3,441	)	—	7,111	—	8,923	16,034	(1,208	)	2012	(A)
17201 Waterview Parkway	Dallas	—	2,070	—	6,409	(1	)	—	2,070	—	6,408	8,478	(615	)	2013	(A)
1900 S. Price Road	Phoenix	—	5,380	—	16,975	320		—	5,380	—	17,295	22,675	(1,609	)	2013	(A)

	Metropolitan Area			Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
					Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
371 Gough Road	Toronto			—	7,394		677	67,316		—	5,700	—	69,687	75,387	(2,126	)	2013	(A)
1500 Towerview Road	Minneapolis			—	10,190		20,054	3,168		—	10,190	—	23,222	33,412	(2,124	)	2013	(A)
Principal Park	London			—	11,837		—	114,293		—	13,886	—	112,244	126,130	(1,991	)	2013	(C)
MetCenter Business Park	Austin			—	8,604		20,314	364		—	8,604	—	20,678	29,282	(2,208	)	2013	(A)
Liverpoolweg 10	Amsterdam			—	733		3,122	7,085		—	611	—	10,329	10,940	(775	)	2013	(A)
DePresident	Amsterdam			—	6,737		—	6,354		—	6,774	—	6,317	13,091	—		2013	(C)
Saito Industrial Park	Osaka			—	9,649		—	1,744		—	8,321	—	3,072	11,393	—		2013	(C)
Crawley 2	London			—	24,305		—	1,741		—	22,020	—	4,026	26,046	(97	)	2014	(C)
Digital Deer Park 3	Melbourne			—	1,600	—	—	29		—	1,629	—	—	1,629	—		2015	(C)
3 Loyang Way	Singapore			—	—	—	—	77,190		—	—	—	77,190	77,190	—		2015	(C)
Digital Loudoun 3	N. Virginia			—	43,000	—	—	1,445		—	44,155	—	290	44,445	(10	)	2015	(C)
Digital Frankfurt	Frankfurt			—	5,543	—	—	1,121		—	6,664	—	—	6,664	—		2015	(C)
56 Marietta Street	Atlanta			—	1,700	—	211,397	1,116		—	1,700	—	212,513	214,213	(2,136	)	2015	(A)
2 Peekay Drive	New York			—	—	—	115,439	3,102		—	—	—	118,541	118,541	(1,575	)	2015	(A)
100 Delawanna Avenue	New York			—	3,600	—	85,438	682		—	3,600	—	86,120	89,720	(742	)	2015	(A)
60 Hudson Street	New York			—	—	—	32,280	945		—	—	—	33,225	33,225	(715	)	2015	(A)
32 Avenue of the Americas	New York			—	—	—	30,980	465		—	—	—	31,445	31,445	(514	)	2015	(A)
3433 S 120th Place	Seattle			—	—	—	11,688	240		—	—	—	11,928	11,928	(359	)	2015	(A)
8435 Stemmons Freeway	Dallas			—	—	—	5,023	121		—	—	—	5,144	5,144	(148	)	2015	(A)
2625 Walsh Avenue	Silicon Valley			—	—	—	4,276	536		—	—	—	4,812	4,812	(72	)	2015	(A)
111 8th Avenue - Telx	New York	(3	)	—	—	—	42,454	818			—	—	43,272	43,272	(1,084	)	2015	(A)
350 East Cermak Road - Telx	Chicago	(3	)	—	—	—	13,933	405		—	—	—	14,338	14,338	(303	)	2015	(A)
200 Paul Avenue - Telx	San Francisco	(3	)	—	—	—	6,719	243		—	—	—	6,962	6,962	(142	)	2015	(A)
2323 Bryan Street - Telx	Dallas	(3	)	—	—	—	5,191	157		—	—	—	5,348	5,348	(108	)	2015	(A)
600 W. 7th Street - Telx	Los Angeles	(3	)	—	—	—	3,689	101		—	—	—	3,790	3,790	(89	)	2015	(A)
3825 NW Aloclek Place - Telx	Portland	(3	)	—	—	—	3,131	137		—	—	—	3,268	3,268	(39	)	2015	(A)
120 E. Van Buren Street - Telx	Phoenix	(3	)	—	—	—	2,848	(351	)	—	—	—	2,497	2,497	(53	)	2015	(A)
36 NE 2nd Street - Telx	Miami	(3	)	—	—	—	1,842	36		—	—	—	1,878	1,878	(42	)	2015	(A)
600-780 S. Federal Street - Telx	Chicago	(3	)	—	—	—	1,815	30		—	—	—	1,845	1,845	(39	)	2015	(A)

	Metropolitan Area			Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
					Land	Acquired ground lease	Buildings and improvements	Improvements	Carrying costs		Land	Acquired ground lease	Buildings and improvements	Total
113 N. Myers Street - Telx	Charlotte	(3	)	—	—	—	476	27	—		—	—	503	503	(7	)	2015	(A)
1100 Space Park Drive - Telx	Silicon Valley	(3	)	—	—	—	352	11	—		—	—	363	363	(10	)	2015	(A)
300 Boulevard East - Telx	New York	(3	)	—	—	—	197	19	—		—	—	216	216	(5	)	2015	(A)
Other				—	8,298		—	14,839	—		—	—	23,137	23,137	(8,096	)
				303,183	731,863	14,986	5,014,720	5,156,151	(5,900	)	689,573	12,639	10,213,161	10,915,373	(2,251,268	)

(1) The balance shown includes an unamortized premium of $427.

(2) The balance shown includes an unamortized premium of $12.

(3) Represents properties acquired in the Telx Acquisition.

(1) Tax Cost

The aggregate gross cost of the Company’s properties for federal income tax purposes approximated $11.7 billion (unaudited) as of December 31, 2015.

(2) Historical Cost and Accumulated Depreciation and Amortization

The following table reconciles the historical cost of the Company’s properties for financial reporting purposes for each of the years in the three-year period ended December 31, 2015.

	Year Ended December 31,
	2015			2014			2013
Balance, beginning of year	$	9,982,612		$	9,879,578		$	8,742,519
Additions during period (acquisitions and improvements)	1,133,263			560,307			1,345,046
Deductions during period (dispositions, impairments and assets held for sale)	(200,502		)	(457,273		)	(207,987		)
Balance, end of year	$	10,915,373		$	9,982,612		$	9,879,578

The following table reconciles accumulated depreciation and amortization of the Company’s properties for financial reporting purposes for each of the years in the three-year period ended December 31, 2015.

	Year Ended December 31,
	2015			2014			2013
Balance, beginning of year	$	1,874,054		$	1,565,996		$	1,206,017
Additions during period (depreciation and amortization expense)	429,057			413,652			386,935
Deductions during period (dispositions and assets held for sale)	(51,843		)	(105,594		)	(26,956		)
Balance, end of year	$	2,251,268		$	1,874,054		$	1,565,996

Schedules other than those listed above are omitted because they are not applicable or the information required is included in the consolidated financial statements or the notes thereto.

Digital Realty Trust, L.P.

Properties And Accumulated Depreciation

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition				Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs		Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
36 NE 2nd Street	Miami	—	1,942	—	24,184	11,693		—		1,942	—	35,877	37,819	(13,839	)	2002	(A)
2323 Bryan Street	Dallas	—	1,838	—	77,604	48,808		—		1,838	—	126,412	128,250	(55,285	)	2002	(A)
300 Boulevard East	New York	—	5,140	—	48,526	61,457		—		5,140	—	109,983	115,123	(56,085	)	2002	(A)
2334 Lundy Place	Silicon Valley	36,714	3,607	—	23,008	67		—		3,607	—	23,075	26,682	(9,201	)	2002	(A)
34551 Ardenwood Boulevard 1-4	Silicon Valley	50,477	15,330	—	32,419	9,076		—		15,330	—	41,495	56,825	(15,684	)	2003	(A)
2440 Marsh Lane	Dallas	—	1,477	—	10,330	71,942		—		1,477	—	82,272	83,749	(48,495	)	2003	(A)
2010 East Centennial Circle	Phoenix	—	—	1,477	16,472	57		—		—	1,322	16,529	17,851	(6,443	)	2003	(A)
375 Riverside Parkway	Atlanta	—	1,250	—	11,578	31,507		—		1,250	—	43,085	44,335	(23,110	)	2003	(A)
4849 Alpha Road	Dallas	—	2,983	—	10,650	42,867		—		2,983	—	53,517	56,500	(21,289	)	2004	(A)
600 West Seventh Street	Los Angeles	46,000	18,478	—	50,824	55,587		—		18,478	—	106,411	124,889	(53,335	)	2004	(A)
2045 & 2055 LaFayette Street	Silicon Valley	61,437	6,065	—	43,817	20		—		6,065	—	43,837	49,902	(16,221	)	2004	(A)
11830 Webb Chapel Road	Dallas	—	5,881	—	34,473	2,102		—		5,881	—	36,575	42,456	(14,300	)	2004	(A)
150 South First Street	Silicon Valley	48,484	2,068	—	29,214	1,495		—		2,068	—	30,709	32,777	(10,742	)	2004	(A)
200 Paul Avenue	San Francisco	—	14,427	—	75,777	81,780		—		14,427	—	157,557	171,984	(64,231	)	2004	(A)
1100 Space Park Drive	Silicon Valley	50,423	5,130	—	18,206	34,478		—		5,130	—	52,684	57,814	(26,014	)	2004	(A)
3015 Winona Avenue	Los Angeles	—	6,534	—	8,356	6		—		6,534	—	8,362	14,896	(3,280	)	2004	(A)
1125 Energy Park Drive	Minneapolis	—	2,775	—	10,761	(5,701	)	(5,900	)	2,775	—	5,060	7,835	(3,890	)	2005	(A)
350 East Cermak Road	Chicago	—	8,466	—	103,232	225,410		—		8,620	—	328,488	337,108	(164,451	)	2005	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
8534 Concord Center Drive	Denver	—	2,181	—	11,561	121		—	2,181	—	11,682	13,863	(4,599	)	2005	(A)
2401 Walsh Street	Silicon Valley	—	5,775	—	19,267	37		—	5,775	—	19,304	25,079	(6,933	)	2005	(A)
2403 Walsh Street	Silicon Valley	—	5,514	—	11,695	48		—	5,514	—	11,743	17,257	(4,500	)	2005	(A)
200 North Nash Street	Los Angeles	—	4,562	—	12,503	232		—	4,562	—	12,735	17,297	(5,313	)	2005	(A)
731 East Trade Street	Charlotte	3,847	1,748	—	5,727	249		—	1,748	—	5,976	7,724	(2,043	)	2005	(A)
113 North Myers	Charlotte	—	1,098	—	3,127	2,059		—	1,098	—	5,186	6,284	(2,013	)	2005	(A)
125 North Myers	Charlotte	—	1,271	—	3,738	6,175		—	1,271	—	9,913	11,184	(6,519	)	2005	(A)
Paul van Vlissingenstraat 16	Amsterdam	—	—	—	15,255	23,791		—	—	—	39,046	39,046	(12,872	)	2005	(A)
600-780 S. Federal	Chicago	—	7,849	—	27,881	33,536		—	7,849	—	61,417	69,266	(13,488	)	2005	(A)
115 Second Avenue	Boston	—	1,691	—	12,569	11,556		—	1,691	—	24,125	25,816	(12,957	)	2005	(A)
Chemin de l’Epinglier 2	Geneva	—	—	—	20,071	(1,584	)	—	—	—	18,487	18,487	(6,300	)	2005	(A)
7500 Metro Center Drive	Austin	—	1,177	—	4,877	67,500		—	1,177	—	72,377	73,554	(5,775	)	2005	(A)
3 Corporate Place	New York	—	2,124	—	12,678	127,334		—	2,124	—	140,012	142,136	(67,989	)	2005	(A)
4025 Midway Road	Dallas	—	2,196	—	14,037	28,627		—	2,196	—	42,664	44,860	(24,747	)	2006	(A)
Clonshaugh Industrial Estate	Dublin	—	—	1,444	5,569	2,625		—	—	90	8,194	8,284	(4,793	)	2006	(A)
6800 Millcreek Drive	Toronto	—	1,657	—	11,352	2,279		—	1,657	—	13,631	15,288	(5,337	)	2006	(A)
101 Aquila Way	Atlanta	—	1,480	—	34,797	52		—	1,480	—	34,849	36,329	(11,827	)	2006	(A)
12001 North Freeway	Houston	—	6,965	—	23,492	145,311		—	6,965	—	168,803	175,768	(34,400	)	2006	(A)
120 E Van Buren	Phoenix	—	4,524	—	157,822	106,684		—	4,524	—	264,506	269,030	(101,945	)	2006	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
Gyroscoopweg 2E-2F	Amsterdam	—	—	—	13,450	(2,011	)	—	—	—	11,439	11,439	(3,978	)	2006	(A)
Clonshaugh Industrial Estate II	Dublin	—	—	—	—	75,735		—	—	—	75,735	75,735	(32,367	)	2006	(C)
600 Winter Street	Boston	—	1,429	—	6,228	456		—	1,429	—	6,684	8,113	(1,898	)	2006	(A)
2300 NW 89th Place	Miami	—	1,022	—	3,767	19		—	1,022	—	3,786	4,808	(1,450	)	2006	(A)
2055 East Technology Circle	Phoenix	—	—	—	8,519	27,522		—	—	—	36,041	36,041	(21,882	)	2006	(A)
114 Rue Ambroise Croizat	Paris	—	12,261	—	34,051	65,181		—	9,533	—	101,960	111,493	(39,419	)	2006	(A)
Unit 9, Blanchardstown Corporate Park	Dublin	—	1,927	—	40,024	14,850		—	1,573	—	55,228	56,801	(17,215	)	2006	(A)
111 8th Avenue	New York	—	—	—	17,688	16,993		—	—	—	34,681	34,681	(27,068	)	2006	(A)
8100 Boone Boulevard	N. Virginia	—	—	—	158	1,206		—	—	—	1,364	1,364	(1,119	)	2006	(A)
21110 Ridgetop Circle	N. Virginia	—	2,934	—	14,311	1,307		—	2,934	—	15,618	18,552	(4,756	)	2007	(A)
3011 Lafayette Street	Silicon Valley	—	3,354	—	10,305	49,187		—	3,354	—	59,492	62,846	(40,001	)	2007	(A)
44470 Chilum Place	N. Virginia	—	3,531	—	37,360	1		—	3,531	—	37,361	40,892	(9,065	)	2007	(A)
43881 Devin Shafron Drive	N. Virginia	—	4,653	—	23,631	91,427		—	4,653	—	115,058	119,711	(71,066	)	2007	(A)
43831 Devin Shafron Drive	N. Virginia	—	3,027	—	16,247	1,229		—	3,027	—	17,476	20,503	(4,541	)	2007	(A)
43791 Devin Shafron Drive	N. Virginia	—	3,490	—	17,444	77,073		—	3,490	—	94,517	98,007	(38,282	)	2007	(A)
Mundells Roundabout	London	—	31,354	—	—	53,426		—	23,489	—	61,291	84,780	(11,536	)	2007	(C)
1 Savvis Parkway	St. Louis	—	3,301	—	20,639	1,125		—	3,301	—	21,764	25,065	(5,553	)	2007	(A)
1500 Space Park Drive	Silicon Valley	—	6,732	—	6,325	46,078		—	4,106	—	55,029	59,135	(40,103	)	2007	(A)
Cressex 1	London	—	3,629	—	9,036	23,810		—	2,833	—	33,642	36,475	(16,677	)	2007	(A)
Naritaweg 52	Amsterdam	—	—	1,192	23,441	(5,812	)	—	—	888	17,629	18,517	(4,319	)	2007	(A)
1 St. Anne’s Boulevard	London	—	1,490	—	1,045	(534	)	—	1,128	—	873	2,001	(178	)	2007	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
2 St. Anne’s Boulevard	London	—	922	—	695	37,874		—	751	—	38,740	39,491	(4,255	)	2007	(A)
3 St. Anne’s Boulevard	London	—	22,079	—	16,351	96,759		—	16,563	—	118,626	135,189	(42,834	)	2007	(A)
365 South Randolphville Road	New York	—	3,019	—	17,404	275,759		—	3,019	—	293,163	296,182	(69,056	)	2008	(A)
701 & 717 Leonard Street	Dallas	—	2,165	—	9,934	826		—	2,165	—	10,760	12,925	(2,204	)	2008	(A)
Manchester Technopark	Manchester	—	—	—	23,918	(5,802	)	—	—	—	18,116	18,116	(3,919	)	2008	(A)
1201 Comstock Street	Silicon Valley	—	2,093	—	1,606	26,684		—	3,398	—	26,985	30,383	(14,210	)	2008	(A)
1550 Space Park Drive	Silicon Valley	—	2,301	—	766	1,747		—	1,929	—	2,885	4,814	—		2008	(A)
1525 Comstock Street	Silicon Valley	—	2,293	—	16,216	30,616		—	2,061	—	47,064	49,125	(23,287	)	2008	(A)
43830 Devin Shafron Drive	N. Virginia	—	5,509	—	—	73,468		—	5,509	—	73,468	78,977	(23,394	)	2009	(C)
1232 Alma Road	Dallas	—	2,267	—	3,740	63,830		—	2,266	—	67,571	69,837	(26,467	)	2009	(A)
900 Quality Way	Dallas	—	1,446	—	1,659	69,165		—	1,446	—	70,824	72,270	(10,008	)	2009	(A)
1400 N. Bowser Road	Dallas	—	2,041	—	3,389	6,181		—	3,636	—	7,975	11,611	—		2009	(A)
1301 International Parkway	Dallas	—	333	—	344	76,746		—	2,131	—	75,292	77,423	(238	)	2009	(A)
908 Quality Way	Dallas	—	6,730	—	4,493	13,693		—	2,067	—	22,849	24,916	(13,011	)	2009	(A)
904 Quality Way	Dallas	—	760	—	744	6,814		—	1,151	—	7,167	8,318	(624	)	2009	(A)
905 Security Row	Dallas	—	—	—	—	—		—	—	—	—	—	—		2009	(A)
1202 Alma Road	Dallas	—	—	—	—	44,349		—	1,921	—	42,428	44,349	(8,715	)	2009	(C)
1350 Duane	Silicon Valley	—	7,081	—	69,817	61		—	7,081	—	69,878	76,959	(11,175	)	2009	(A)
45901 & 45845 Nokes Boulevard	N. Virginia	—	3,437	—	28,785	450		—	3,437	—	29,235	32,672	(4,913	)	2009	(A)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition		Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements	Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
21561 & 21571 Beaumeade Circle	N. Virginia	—	3,966	—	24,211	45	—	3,966	—	24,256	28,222	(3,767	)	2009	(A)
60 & 80 Merritt	New York	—	3,418	—	71,477	92,311	—	3,418	—	163,788	167,206	(22,425	)	2010	(A)
55 Middlesex	Boston	—	9,975	—	68,363	8,170	—	9,975	—	76,533	86,508	(15,970	)	2010	(A)
128 First Avenue	Boston	—	5,465	—	185,348	30,328	—	5,465	—	215,676	221,141	(44,598	)	2010	(A)
Cateringweg 5	Amsterdam	—	—	3,518	3,517	37,032	—	—	3,122	40,549	43,671	(4,959	)	2010	(A)
1725 Comstock Street	Silicon Valley	—	3,274	—	6,567	37,900	—	3,274	—	44,467	47,741	(15,944	)	2010	(A)
3015 and 3115 Alfred Street	Silicon Valley	—	6,533	—	3,725	55,645	—	6,562	—	59,341	65,903	(17,930	)	2010	(A)
365 Main Street	San Francisco	—	22,854	—	158,709	22,737	—	22,854	—	181,446	204,300	(32,439	)	2010	(A)
720 2nd Street	San Francisco	—	3,884	—	116,861	9,594	—	3,884	—	126,455	130,339	(20,522	)	2010	(A)
2260 East El Segundo	Los Angeles	—	11,053	—	51,397	13,205	—	11,053	—	64,602	75,655	(12,276	)	2010	(A)
2121 South Price Road	Phoenix	—	7,335	—	238,452	199,624	—	7,335	—	438,076	445,411	(67,279	)	2010	(A)
4030 La Fayette	N. Virginia	—	2,492	—	16,912	3,517	—	2,492	—	20,429	22,921	(3,788	)	2010	(A)
4040 La Fayette	N. Virginia	—	1,246	—	4,267	24,510	—	1,246	—	28,777	30,023	(1,773	)	2010	(A)
4050 La Fayette	N. Virginia	—	1,246	—	4,371	35,017	—	1,246	—	39,388	40,634	(13,601	)	2010	(A)
800 Central Expressway	Silicon Valley	—	8,976	—	18,155	130,755	—	8,294	—	149,592	157,886	(10,502	)	2010	(A)
29A International Business Park	Singapore	—	—	—	137,545	190,975	—	—	—	328,520	328,520	(56,103	)	2010	(A)
Loudoun Parkway North	N. Virginia	—	17,300	—	—	495,564	—	17,746	—	495,118	512,864	(32,184	)	2011	(C)
1-23 Templar Road	Sydney	—	11,173	—	—	62,906	—	7,181	—	66,898	74,079	(6,681	)	2011	(C)
Fountain Court	London	—	7,544	—	12,506	95,637	—	7,217	—	108,470	115,687	(9,995	)	2011	(C)
98 Radnor Drive	Melbourne	—	4,467	—	—	91,340	—	3,215	—	92,592	95,807	(10,456	)	2011	(C)
Cabot Street	Boston	—	2,386	—	—	58,806	—	2,427	—	58,765	61,192	(3,634	)	2011	(C)

	Metropolitan Area	Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
			Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
PROPERTIES:
3825 NW Aloclek Place	Portland	—	1,689	—	—	57,201		—	1,689	—	57,201	58,890	(10,724	)	2011	(C)
11085 Sun Center Drive	Sacramento	—	2,490	—	21,509	1		—	2,490	—	21,510	24,000	(2,633	)	2011	(A)
Profile Park	Dublin	—	6,288	—	—	38,565		—	5,350	—	39,503	44,853	(530	)	2011	(C)
1506 Moran Road	N. Virginia	—	1,527	—	—	17,185		—	1,115	—	17,597	18,712	(1,348	)	2011	(A)
760 Doug Davis Drive	Atlanta	—	4,837	—	53,551	2,807		—	4,837	—	56,358	61,195	(7,712	)	2011	(A)
360 Spear Street	San Francisco	—	19,828	—	56,733	(854	)	—	19,828	—	55,879	75,707	(8,397	)	2011	(A)
2501 S. State Hwy 121	Dallas	—	23,137	—	93,943	14,828		—	23,137	—	108,771	131,908	(17,611	)	2012	(A)
9333, 9355, 9377 Grand Avenue	Chicago	—	5,686	—	14,515	259,630		—	5,960	—	273,871	279,831	(17,681	)	2012	(A)
8025 North Interstate 35	Austin	5,801	2,920	—	8,512	184		—	2,920	—	8,696	11,616	(1,095	)	2012	(A)
850 E Collins	Dallas	—	1,614	—	—	81,875		—	1,614	—	81,875	83,489	(6,925	)	2012	(C)
950 E Collins	Dallas	—	1,546	—	—	74,994		—	1,546	—	74,994	76,540	(3,621	)	2012	(C)
400 S. Akard	Dallas	—	10,075	—	62,730	1,690		—	10,075	—	64,420	74,495	(6,066	)	2012	(A)
410 Commerce Boulevard	New York	—	—	—	—	29,747		—	—	—	29,747	29,747	(5,625	)	2012	(C)
Unit B Prologis Park	London	—	1,683	—	104,728	(6,565	)	—	1,552	—	98,294	99,846	(9,903	)	2012	(A)
The Chess Building	London	—	—	7,355	219,273	9,773		—	—	7,217	229,046	236,263	(22,462	)	2012	(A)
Unit 21 Goldsworth Park	London	—	17,334	—	928,129	(26,882	)	—	15,800	—	902,781	918,581	(89,393	)	2012	(A)
11900 East Cornell	Denver	—	3,352	—	80,640	1,758		—	3,352	—	82,398	85,750	(8,837	)	2012	(A)
701 Union Boulevard	New York	—	10,045	—	6,755	27,878		—	10,045	—	34,633	44,678	—		2012	(A)
23 Waterloo Road	Sydney	—	7,112	—	3,868	(3,284	)	—	4,985	—	2,711	7,696	(244	)	2012	(A)
1 Rue Jean-Pierre	Paris	—	9,621	—	35,825	(8,029	)	—	7,921	—	29,496	37,417	(3,209	)	2012	(A)
Liet-dit le Christ de Saclay	Paris	—	3,402	—	3,090	(1,147	)	—	2,801	—	2,544	5,345	(357	)	2012	(A)
127 Rue de Paris	Paris	—	8,637	—	10,838	(3,441	)	—	7,111	—	8,923	16,034	(1,208	)	2012	(A)
17201 Waterview Parkway	Dallas	—	2,070	—	6,409	(1	)	—	2,070	—	6,408	8,478	(615	)	2013	(A)
1900 S. Price Road	Phoenix	—	5,380	—	16,975	320		—	5,380	—	17,295	22,675	(1,609	)	2013	(A)

	Metropolitan Area			Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
					Land	Acquired ground lease	Buildings and improvements	Improvements		Carrying costs	Land	Acquired ground lease	Buildings and improvements	Total
371 Gough Road	Toronto			—	7,394		677	67,316		—	5,700	—	69,687	75,387	(2,126	)	2013	(A)
1500 Towerview Road	Minneapolis			—	10,190		20,054	3,168		—	10,190	—	23,222	33,412	(2,124	)	2013	(A)
Principal Park	London			—	11,837		—	114,293		—	13,886	—	112,244	126,130	(1,991	)	2013	(C)
MetCenter Business Park	Austin			—	8,604		20,314	364		—	8,604	—	20,678	29,282	(2,208	)	2013	(A)
Liverpoolweg 10	Amsterdam			—	733		3,122	7,085		—	611	—	10,329	10,940	(775	)	2013	(A)
DePresident	Amsterdam			—	6,737		—	6,354		—	6,774	—	6,317	13,091	—		2013	(C)
Saito Industrial Park	Osaka			—	9,649		—	1,744		—	8,321	—	3,072	11,393	—		2013	(C)
Crawley 2	London			—	24,305		—	1,741		—	22,020	—	4,026	26,046	(97	)	2014	(C)
Digital Deer Park 3	Melbourne			—	1,600	—	—	29		—	1,629	—	—	1,629	—		2015	(C)
3 Loyang Way	Singapore			—	—	—	—	77,190		—	—	—	77,190	77,190	—		2015	(C)
Digital Loudoun 3	N. Virginia			—	43,000	—	—	1,445		—	44,155	—	290	44,445	(10	)	2015	(C)
Digital Frankfurt	Frankfurt			—	5,543	—	—	1,121		—	6,664	—	—	6,664	—		2015	(C)
56 Marietta Street	Atlanta			—	1,700	—	211,397	1,116		—	1,700	—	212,513	214,213	(2,136	)	2015	(A)
2 Peekay Drive	New York			—	—	—	115,439	3,102		—	—	—	118,541	118,541	(1,575	)	2015	(A)
100 Delawanna Avenue	New York			—	3,600	—	85,438	682		—	3,600	—	86,120	89,720	(742	)	2015	(A)
60 Hudson Street	New York			—	—	—	32,280	945		—	—	—	33,225	33,225	(715	)	2015	(A)
32 Avenue of the Americas	New York			—	—	—	30,980	465		—	—	—	31,445	31,445	(514	)	2015	(A)
3433 S 120th Place	Seattle			—	—	—	11,688	240		—	—	—	11,928	11,928	(359	)	2015	(A)
8435 Stemmons Freeway	Dallas			—	—	—	5,023	121		—	—	—	5,144	5,144	(148	)	2015	(A)
2625 Walsh Avenue	Silicon Valley			—	—	—	4,276	536		—	—	—	4,812	4,812	(72	)	2015	(A)
111 8th Avenue - Telx	New York	(3	)	—	—	—	42,454	818			—	—	43,272	43,272	(1,084	)	2015	(A)
350 East Cermak Road - Telx	Chicago	(3	)	—	—	—	13,933	405		—	—	—	14,338	14,338	(303	)	2015	(A)
200 Paul Avenue - Telx	San Francisco	(3	)	—	—	—	6,719	243		—	—	—	6,962	6,962	(142	)	2015	(A)
2323 Bryan Street - Telx	Dallas	(3	)	—	—	—	5,191	157		—	—	—	5,348	5,348	(108	)	2015	(A)
600 W. 7th Street - Telx	Los Angeles	(3	)	—	—	—	3,689	101		—	—	—	3,790	3,790	(89	)	2015	(A)
3825 NW Aloclek Place - Telx	Portland	(3	)	—	—	—	3,131	137		—	—	—	3,268	3,268	(39	)	2015	(A)
120 E. Van Buren Street - Telx	Phoenix	(3	)	—	—	—	2,848	(351	)	—	—	—	2,497	2,497	(53	)	2015	(A)
36 NE 2nd Street - Telx	Miami	(3	)	—	—	—	1,842	36		—	—	—	1,878	1,878	(42	)	2015	(A)
600-780 S. Federal Street - Telx	Chicago	(3	)	—	—	—	1,815	30		—	—	—	1,845	1,845	(39	)	2015	(A)

	Metropolitan Area			Encumbrances	Initial costs			Costs capitalized subsequent to acquisition			Total costs				Accumulated depreciation and amortization		Date of acquisition or construction	Acquisition (A) or construction (C)
					Land	Acquired ground lease	Buildings and improvements	Improvements	Carrying costs		Land	Acquired ground lease	Buildings and improvements	Total
113 N. Myers Street - Telx	Charlotte	(3	)	—	—	—	476	27	—		—	—	503	503	(7	)	2015	(A)
1100 Space Park Drive - Telx	Silicon Valley	(3	)	—	—	—	352	11	—		—	—	363	363	(10	)	2015	(A)
300 Boulevard East - Telx	New York	(3	)	—	—	—	197	19	—		—	—	216	216	(5	)	2015	(A)
Other				—	8,298		—	14,839	—		—	—	23,137	23,137	(8,096	)
				303,183	731,863	14,986	5,014,720	5,156,151	(5,900	)	689,573	12,639	10,213,161	10,915,373	(2,251,268	)

(1) The balance shown includes an unamortized premium of $427.

(2) The balance shown includes an unamortized premium of $12.

(3) Represents properties acquired in the Telx Acquisition.

(1) Tax Cost

The aggregate gross cost of the Company’s properties for federal income tax purposes approximated $11.7 billion (unaudited) as of December 31, 2015.

(2) Historical Cost and Accumulated Depreciation and Amortization

The following table reconciles the historical cost of the Company’s properties for financial reporting purposes for each of the years in the three-year period ended December 31, 2015.

	Year Ended December 31,
	2015			2014			2013
Balance, beginning of year	$	9,982,612		$	9,879,578		$	8,742,519
Additions during period (acquisitions and improvements)	1,133,263			560,307			1,345,046
Deductions during period (dispositions, impairments and assets held for sale)	(200,502		)	(457,273		)	(207,987		)
Balance, end of year	$	10,915,373		$	9,982,612		$	9,879,578

The following table reconciles accumulated depreciation and amortization of the Company’s properties for financial reporting purposes for each of the years in the three-year period ended December 31, 2015.

	Year Ended December 31,
	2015			2014			2013
Balance, beginning of year	$	1,874,054		$	1,565,996		$	1,206,017
Additions during period (depreciation and amortization expense)	429,057			413,652			386,935
Deductions during period (dispositions and assets held for sale)	(51,843		)	(105,594		)	(26,956		)
Balance, end of year	$	2,251,268		$	1,874,054		$	1,565,996

Schedules other than those listed above are omitted because they are not applicable or the information required is included in the consolidated financial statements or the notes thereto.