Real Estate and Accumulated Depreciation

12 Months Ended

Dec. 31, 2019

SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]

Real Estate and Accumulated Depreciation Disclosure [Text Block]

Item 15. Exhibits and Financial Statement Schedules

(a) Financial Statement Schedule

Boston Properties, Inc. Schedule 3 - Real Estate and Accumulated Depreciation December 31, 2019 (dollars in thousands)

Property Name	Type	Location	Encumbrances		Original				Costs Capitalized Subsequent to Acquisition		Land and Improvements		Building and Improvements		Land Held for Development		Development and Construction in Progress		Total		Accumulated Depreciation		Year(s) Built/ Renovated	Year(s) Acquired	Depreciable Lives (Years)

					Land		Building
767 Fifth Avenue (the General Motors Building)	Office	New York, NY	$	2,274,028	$	1,796,252	$	1,532,654	$	202,612	$	1,796,252	$	1,735,266	$	—	$	—	$	3,531,518	$	313,158	1968/2019	2013	(1)
Prudential Center	Office	Boston, MA	—		92,077		948,357		556,458		115,638		1,478,578		2,676		—		1,596,892		596,740		1965/1993/2002/2016-2017	1998/1999/2000	(1)
Embarcadero Center	Office	San Francisco, CA	—		179,697		847,410		415,228		195,987		1,246,348		—		—		1,442,335		633,711		1970/1989	1998-1999	(1)
399 Park Avenue	Office	New York, NY	—		339,200		700,358		300,519		354,107		985,970		—		—		1,340,077		358,960		1961/2018	2002	(1)
601 Lexington Avenue	Office	New York, NY	644,778		241,600		494,782		454,902		289,639		688,550		—		213,095		1,191,284		289,482		1977/1997	2001	(1)
Salesforce Tower	Office	San Francisco, CA	—		200,349		946,205		—		200,349		946,205		—		—		1,146,554		38,727		2018	2013	(1)
200 Clarendon Street and Garage	Office	Boston, MA	—		219,543		667,884		210,160		250,134		829,529		17,924		—		1,097,587		214,533		1976	2010	(1)
250 West 55th Street	Office	New York, NY	—		285,263		603,167		51,928		285,263		655,095		—		—		940,358		116,857		2014	2007	(1)
100 Federal Street	Office	Boston, MA	—		131,067		435,954		102,984		131,067		538,938		—		—		670,005		122,799		1971-1975/2017	2012	(1)
Times Square Tower	Office	New York, NY	—		165,413		380,438		113,222		169,193		489,880		—		—		659,073		217,303		2004	2000	(1)
Carnegie Center	Office	Princeton, NJ	—		142,666		316,856		152,280		94,240		462,882		54,680		—		611,802		208,331		1983-2016	1998/1999/2000/2007/2014/2017/2019	(1)
Atlantic Wharf	Office	Boston, MA	—		63,988		454,537		18,709		63,988		473,246		—		—		537,234		131,828		2011	2007	(1)
510 Madison Avenue	Office	New York, NY	—		103,000		253,665		25,495		103,000		279,160		—		—		382,160		72,213		2012	2010	(1)
Fountain Square	Office	Reston, VA	—		56,853		306,298		12,140		56,853		318,438		—		—		375,291		78,498		1986-1990	2012	(1)
599 Lexington Avenue	Office	New York, NY	—		81,040		100,507		188,572		87,852		282,267		—		—		370,119		183,291		1986	1997	(1)
680 Folsom Street	Office	San Francisco, CA	—		72,545		219,766		7,907		72,545		227,673		—		—		300,218		46,777		2014	2012	(1)
2200 Pennsylvania Avenue	Office	Washington, DC	—		—		183,541		113,627		109,038		188,130		—		—		297,168		59,190		2011	2008	(1)
145 Broadway	Office	Cambridge, MA	—		121		273,013		23,246		23,367		273,013		—		—		296,380		1,511		2019	1997	(1)
South of Market and Democracy Tower	Office	Reston, VA	—		13,603		237,479		26,415		13,687		263,810		—		—		277,497		99,478		2008-2009	2003	(1)
601 Massachusetts Avenue	Office	Washington, DC	—		95,310		165,173		3,945		95,322		169,106		—		—		264,428		24,502		2016	2008	(1)
Bay Colony Corporate Center	Office	Waltham, MA	—		18,789		148,451		80,077		18,789		228,528		—		—		247,317		79,824		1985-1989	2011	(1)
Gateway Center	Office	San Francisco, CA	—		28,255		139,245		61,791		30,627		198,664		—		—		229,291		106,680		1984/1986/2002	1999	(1)
535 Mission Street	Office	San Francisco, CA	—		40,933		148,378		3,276		40,933		151,654		—		—		192,587		26,293		2015	2013	(1)
Reservoir Place	Office	Waltham, MA	—		18,605		104,124		53,718		20,108		156,339		—		—		176,447		70,870		1955/1987/2017	1997/1998	(1)
Mountain View Research Park	Office	Mountain View, CA	—		95,066		68,373		12,704		95,066		81,077		—		—		176,143		19,807		1977-1981/2007-2013	2013	(1)
1330 Connecticut Avenue	Office	Washington, DC	—		25,982		82,311		36,847		27,135		118,005		—		—		145,140		32,775		1984/2018	2004	(1)

Boston Properties, Inc. Schedule 3 - Real Estate and Accumulated Depreciation December 31, 2019 (dollars in thousands)

Property Name	Type	Location	Encumbrances	Original		Costs Capitalized Subsequent to Acquisition		Land and Improvements	Building and Improvements	Land Held for Development	Development and Construction in Progress	Total	Accumulated Depreciation	Year(s) Built/ Renovated	Year(s) Acquired	Depreciable Lives (Years)

				Land	Building
Kingstowne Towne Center	Office	Alexandria, VA	—	18,021	109,038	3,376		18,062	112,373	—	—	130,435	44,294	2003-2006	2007	(1)
One Freedom Square	Office	Reston, VA	—	9,929	84,504	34,372		11,293	117,512	—	—	128,805	59,006	2000	2003	(1)
Capital Gallery	Office	Washington, DC	—	4,725	29,565	88,704		8,662	114,332	—	—	122,994	71,631	1981/2006	2007	(1)
Weston Corporate Center	Office	Weston, MA	—	25,753	92,312	(123	)	25,854	92,088	—	—	117,942	29,227	2010	2001	(1)
Two Freedom Square	Office	Reston, VA	—	13,930	77,739	23,209		15,420	99,458	—	—	114,878	50,668	2001	2003	(1)
One and Two Reston Overlook	Office	Reston, VA	—	16,456	66,192	24,181		16,179	90,650	—	—	106,829	51,503	1999	2000	(1)
Discovery Square	Office	Reston, VA	—	11,198	71,782	20,905		12,533	91,352	—	—	103,885	43,619	2001	2003	(1)
140 Kendrick Street	Office	Needham, MA	—	18,095	66,905	17,574		19,092	83,482	—	—	102,574	35,721	2000	2004	(1)
355 Main Street	Office	Cambridge, MA	—	18,863	53,346	27,582		21,173	78,618	—	—	99,791	26,439	1981/1996/2013	2006	(1)
880 & 890 Winter Street	Office	Waltham, MA	—	29,510	65,812	—		29,510	65,812	—	—	95,322	1,458	1998-1999	2019	(1)
10 CityPoint	Office	Waltham, MA	—	1,953	85,752	4,697		2,290	90,112	—	—	92,402	10,928	2016	1997	(1)
90 Broadway	Office	Cambridge, MA	—	19,104	52,078	19,857		20,785	70,254	—	—	91,039	23,621	1983/1998/2013	2006	(1)
230 CityPoint	Office	Waltham, MA	—	13,189	49,823	22,057		13,807	71,262	—	—	85,069	29,255	1992	2005	(1)
77 CityPoint	Office	Waltham, MA	—	13,847	60,383	10,556		14,023	70,763	—	—	84,786	27,172	2008	2001	(1)
Waltham Weston Corporate Center	Office	Waltham, MA	—	10,385	60,694	13,165		11,097	73,147	—	—	84,244	35,567	2003	1999	(1)
3625-3635 Peterson Way	Office	Santa Clara, CA	—	63,206	14,879	752		63,206	14,879	752	—	78,837	11,172	1979	2016	(1)
2440 West El Camino Real	Office	Mountain View, CA	—	16,741	51,285	5,454		16,741	56,739	—	—	73,480	13,090	1987/2003	2011	(1)
191 Spring Street	Office	Lexington, MA	—	2,850	59,751	7,695		3,151	67,145	—	—	70,296	21,917	1971/1995/2018	1997	(1)
300 Binney Street	Office	Cambridge, MA	—	18,080	51,262	140		18,080	51,402	—	—	69,482	11,146	2013	2009	(1)
Wisconsin Place	Office	Chevy Chase, MD	—	—	53,349	14,924		—	68,273	—	—	68,273	25,934	2009	2004	(1)
Reston Corporate Center	Office	Reston, VA	—	9,135	50,857	6,236		10,148	56,080	—	—	66,228	29,860	1984	1998	(1)
New Dominion Technology Park, Bldg. Two	Office	Herndon, VA	—	5,584	51,868	4,157		6,510	55,099	—	—	61,609	26,894	2004	1998	(1)
255 Main Street	Office	Cambridge, MA	—	134	25,110	34,124		548	58,820	—	—	59,368	33,543	1987	1997	(1)
University Place	Office	Cambridge, MA	3,602	—	37,091	16,001		7,418	45,674	—	—	53,092	29,423	1985	1998	(1)
New Dominion Technology Park, Bldg. One	Office	Herndon, VA	—	3,880	43,227	3,927		4,583	46,451	—	—	51,034	29,141	2001	1998	(1)
Sumner Square	Office	Washington, DC	—	624	28,745	21,344		3,535	47,178	—	—	50,713	27,093	1985	1999	(1)
200 West Street	Office	Waltham, MA	—	16,148	24,983	8,211		16,813	30,425	—	2,104	49,342	17,001	1999	1997	(1)
North First Business Park	Office	San Jose, CA	—	23,398	13,069	4,571		23,377	17,661	—	—	41,038	16,411	1981	2007	(1)
150 Broadway	Office	Cambridge, MA	—	850	25,042	8,540		1,323	33,109	—	—	34,432	19,875	1999	1997	(1)
105 Broadway	Office	Cambridge, MA	—	1,299	12,943	11,406		2,395	23,253	—	—	25,648	11,870	1990	1997	(1)
Lexington Office Park	Office	Lexington, MA	—	998	1,426	18,547		1,264	19,707	—	—	20,971	14,312	1982	1997	(1)
201 Spring Street	Office	Lexington, MA	—	2,849	15,303	1,172		3,124	16,200	—	—	19,324	8,587	1997	1997	(1)
The Point	Office	Waltham, MA	—	6,395	10,040	421		6,492	10,364	—	—	16,856	1,349	2015	2007	(1)
33 Hayden Avenue	Office	Lexington, MA	—	266	3,234	12,898		425	15,973	—	—	16,398	5,678	1979	1997	(1)
690 Folsom Street	Office	San Francisco, CA	—	3,219	11,038	1,157		3,219	12,195	—	—	15,414	2,284	2015	2012	(1)

Boston Properties, Inc. Schedule 3 - Real Estate and Accumulated Depreciation December 31, 2019 (dollars in thousands)

Property Name	Type	Location	Encumbrances	Original		Costs Capitalized Subsequent to Acquisition	Land and Improvements	Building and Improvements	Land Held for Development	Development and Construction in Progress	Total	Accumulated Depreciation	Year(s) Built/ Renovated	Year(s) Acquired	Depreciable Lives (Years)

				Land	Building
92-100 Hayden Avenue	Office	Lexington, MA	—	594	6,748	7,529	802	14,069	—	—	14,871	12,041	1985	1997	(1)
181 Spring Street	Office	Lexington, MA	—	1,066	9,520	2,177	1,160	11,603	—	—	12,763	5,597	1999	1997	(1)
195 West Street	Office	Waltham, MA	—	1,611	6,652	4,218	1,858	10,623	—	—	12,481	8,352	1990	1997	(1)
7501 Boston Boulevard, Building Seven	Office	Springfield, VA	—	665	9,273	816	791	9,963	—	—	10,754	5,393	1997	1997	(1)
7435 Boston Boulevard, Building One	Office	Springfield, VA	—	392	3,822	4,983	659	8,538	—	—	9,197	6,344	1982	1997	(1)
7450 Boston Boulevard, Building Three	Office	Springfield, VA	—	1,165	4,681	2,591	1,430	7,007	—	—	8,437	3,575	1987	1998	(1)
32 Hartwell Avenue	Office	Lexington, MA	—	168	1,943	6,115	314	7,912	—	—	8,226	1,975	1968/1979/1987	1997	(1)
250 Binney Street	Office	Cambridge, MA	—	110	4,483	3,593	273	7,913	—	—	8,186	5,829	1983	1997	(1)
8000 Grainger Court, Building Five	Office	Springfield, VA	—	366	4,282	3,198	601	7,245	—	—	7,846	5,752	1984	1997	(1)
453 Ravendale Drive	Office	Mountain View, CA	—	5,477	1,090	676	5,477	1,766	—	—	7,243	690	1977	2012	(1)
7300 Boston Boulevard, Building Thirteen	Office	Springfield, VA	—	608	4,773	1,007	661	5,727	—	—	6,388	1,984	2002	1997	(1)
17 Hartwell Avenue	Office	Lexington, MA	—	26	150	6,064	65	6,175	—	—	6,240	1,966	1968	1997	(1)
7601 Boston Boulevard, Building Eight	Office	Springfield, VA	—	200	878	5,060	551	5,587	—	—	6,138	4,689	1986	1997	(1)
7500 Boston Boulevard, Building Six	Office	Springfield, VA	—	138	3,749	1,640	367	5,160	—	—	5,527	4,237	1985	1997	(1)
8000 Corporate Court, Building Eleven	Office	Springfield, VA	—	136	3,071	1,596	774	4,029	—	—	4,803	3,191	1989	1997	(1)
7375 Boston Boulevard, Building Ten	Office	Springfield, VA	—	23	2,685	1,032	93	3,647	—	—	3,740	2,606	1988	1997	(1)
7374 Boston Boulevard, Building Four	Office	Springfield, VA	—	241	1,605	1,828	398	3,276	—	—	3,674	2,779	1984	1997	(1)
7451 Boston Boulevard, Building Two	Office	Springfield, VA	—	249	1,542	1,667	613	2,845	—	—	3,458	2,610	1982	1997	(1)
Signature at Reston	Residential	Reston, VA	—	27,076	190,580	393	27,076	190,973	—	—	218,049	8,773	2018	2013	(1)
Proto Kendall Square	Residential	Cambridge, MA	—	9,243	127,248	2,939	9,245	130,185	—	—	139,430	4,566	2018	2015	(1)
The Avant at Reston Town Center	Residential	Reston, VA	—	20,350	91,995	830	20,350	92,825	—	—	113,175	14,728	2014	2010	(1)
The Lofts at Atlantic Wharf	Residential	Boston, MA	—	3,529	54,891	1,897	3,529	56,788	—	—	60,317	12,639	2011	2007	(1)
Boston Marriott Cambridge	Hotel	Cambridge, MA	—	478	37,918	35,813	1,201	73,008	—	—	74,209	46,605	1986/2017	1997	(1)
Kendall Center Green Garage	Garage	Cambridge, MA	—	—	35,035	7,329	103	42,261	—	—	42,364	13,512	1984	2006	(1)
Kendall Center Yellow Garage	Garage	Cambridge, MA	—	1,256	15,697	1,552	1,434	17,071	—	—	18,505	6,031	2006	2004	(1)
Kendall Center Blue Garage	Garage	Cambridge, MA	—	1,163	11,633	2,151	1,579	13,368	—	—	14,947	9,728	1990	1997	(1)
The Skylyne (MacArthur Station Residences)	Development	Oakland, CA	—	—	—	226,526	29,807	—	—	196,719	226,526	—	N/A	N/A	N/A
2100 Pennsylvania Avenue	Development	Washington, DC	—	—	—	224,380	185,129	—	—	39,251	224,380	1,024	N/A	N/A	N/A
Reston Gateway	Development	Reston, VA	—	—	—	150,632	—	—	—	150,632	150,632	—	N/A	1998	N/A
17Fifty Presidents Street	Development	Reston, VA	—	—	—	99,816	—	—	—	99,816	99,816	—	N/A	2013	N/A

Boston Properties, Inc. Schedule 3 - Real Estate and Accumulated Depreciation December 31, 2019 (dollars in thousands)

Property Name	Type	Location	Encumbrances				Original				Costs Capitalized Subsequent to Acquisition		Land and Improvements				Building and Improvements				Land Held for Development				Development and Construction in Progress		Total		Accumulated Depreciation		Year(s) Built/ Renovated	Year(s) Acquired	Depreciable Lives (Years)

							Land		Building
20 CityPoint	Development	Waltham, MA	—				4,721		52,039		20,007		4,721				52,039				—				20,007		76,767		1,136		N/A	2007	N/A
325 Main Street	Development	Cambridge, MA	—				174		—		68,903		965				—				—				68,112		69,077		—		N/A	1997	N/A
North First Master Plan	Land	San Jose, CA	—				35,004		—		3,932		—				—				38,936				—		38,936		—		N/A	2007	N/A
Plaza at Almaden	Land	San Jose, CA	—				—		—		34,889		—				—				34,889				—		34,889		—		N/A	2006	N/A
425 Fourth Street	Land	San Francisco, CA	—				—		—		22,074		—				—				22,074				—		22,074		—		N/A	N/A	N/A
Springfield Metro Center	Land	Springfield, VA	—				—		—		19,844		—				—				19,844				—		19,844		—		N/A	2007	N/A
Reston Gateway Master Plan	Land	Reston, VA	—				—		—		18,292		—				—				18,292				—		18,292		—		N/A	1998	N/A
214 Third Avenue	Land	Waltham, MA	—				—		—		17,692		—				—				17,692				—		17,692		—		N/A	2006	N/A
103 Fourth Avenue	Land	Waltham, MA	—				—		—		12,826		—				—				12,826				—		12,826		—		N/A	2007	N/A
Crane Meadow	Land	Marlborough, MA	—				—		—		8,866		—				—				8,866				—		8,866		—		N/A	2000	N/A
Broad Run Business Park	Land	Loudoun County, VA	—				—		—		2,396		—				—				2,396				—		2,396		—		N/A	1998	N/A
Kendall Center Master Plan	Land	Cambridge, MA	—				—		—		1,693		—				—				1,693				—		1,693		—		N/A	1997	N/A
Weston Quarry	Land	Weston, MA	—				—		—		1,249		—				—				1,249				—		1,249		—		N/A	2001	N/A
Reston Overlook Master Plan	Land	Reston, VA	—				—		—		39		—				—				39				—		39		—		N/A	2000	N/A

			$	2,922,408	(2	)	$	5,024,060	$	13,057,336	$	4,763,301	$	5,474,337	(3	)	$	16,325,796	(4	)	$	254,828	(5	)	$	789,736	$	22,844,697	$	5,239,179

Note: Total Real Estate does not include Furniture, Fixtures and Equipment totaling approximately $44,313. Accumulated Depreciation does not include approximately $27,619 of accumulated depreciation related to Furniture, Fixtures and Equipment.

The aggregate cost and accumulated depreciation for tax purposes was approximately $18.6 billion and $4.0 billion, respectively.


(1)	Depreciation of the buildings and improvements are calculated over lives ranging from the life of the lease to 40 years.


(2)	Includes unamortized deferred financing costs totaling approximately $(26.7) million.


(3)	Includes Right of Use Assets - Finance Leases and Right of Use Assets - Operating Leases of approximately $214,091 and $148,640, respectively.


(4)	Includes Right of Use Assets - Finance Leases of approximately $23,303.

(5)

Includes pre-development costs.

Boston Properties, Inc.

Real Estate and Accumulated Depreciation

December 31, 2019, 2018 and 2017

(dollars in thousands)

A summary of activity for real estate and accumulated depreciation is as follows:



	2019			2018			2017
Real Estate:
Balance at the beginning of the year	$	21,605,545		$	21,058,714		$	20,114,576
Additions to/improvements of real estate	1,671,898			1,043,379			1,099,286
Assets sold/written-off	(432,746		)	(496,548		)	(155,148		)
Balance at the end of the year	$	22,844,697		$	21,605,545		$	21,058,714
Accumulated Depreciation:
Balance at the beginning of the year	$	4,871,102		$	4,566,570		$	4,201,891
Depreciation expense	564,938			533,342			497,059
Assets sold/written-off	(196,861		)	(228,810		)	(132,380		)
Balance at the end of the year	$	5,239,179		$	4,871,102		$	4,566,570

Note: Real Estate and Accumulated Depreciation amounts do not include Furniture, Fixtures and Equipment.

Boston Properties Limited Partnership