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Real Estate | 12 Months Ended
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Dec. 31, 2017
Real Estate [Abstract] |
Real Estate | 3. Real Estate Boston Properties, Inc. Real estate consisted of the following at December 31, 2017 and December 31, 2016 (in thousands):
|  | 2017 |  | 2016
Land |  | $ | 5,080,679 |  |  | $ | 4,879,020 |
Land held for future development (1) |  | 204,925 |  |  | 246,656 |
Buildings and improvements |  | 12,284,164 |  |  | 11,890,626 |
Tenant improvements |  | 2,219,608 |  |  | 2,060,315 |
Furniture, fixtures and equipment |  | 37,928 |  |  | 32,687 |
Construction in progress |  | 1,269,338 |  |  | 1,037,959 |
Total |  | 21,096,642 |  |  | 20,147,263 |
Less: Accumulated depreciation |  | (4,589,634 | ) |  | (4,222,235 | )
|  | $ | 16,507,008 |  |  | $ | 15,925,028 |
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(1) | Includes pre-development costs.
Boston Properties Limited Partnership Real estate consisted of the following at December 31, 2017 and December 31, 2016 (in thousands):
|  | 2017 |  | 2016
Land |  | $ | 4,976,303 |  |  | $ | 4,774,460 |
Land held for future development (1) |  | 204,925 |  |  | 246,656 |
Buildings and improvements |  | 11,977,062 |  |  | 11,581,795 |
Tenant improvements |  | 2,219,608 |  |  | 2,060,315 |
Furniture, fixtures and equipment |  | 37,928 |  |  | 32,687 |
Construction in progress |  | 1,269,338 |  |  | 1,037,959 |
Total |  | 20,685,164 |  |  | 19,733,872 |
Less: Accumulated depreciation |  | (4,496,959 | ) |  | (4,136,364 | )
|  | $ | 16,188,205 |  |  | $ | 15,597,508 |
_______________
(1) | Includes pre-development costs.
Development/Redevelopment On April 6, 2017, the Company commenced the construction of 145 Broadway, a build-to-suit Class A office project with approximately 485,000 net rentable square feet located in Cambridge, Massachusetts. On May 27, 2017, the Company completed and fully placed in-service Reservoir Place North, a Class A office redevelopment project with approximately 73,000 net rentable square feet located in Waltham, Massachusetts. On August 24, 2017, the Company entered into a 15-year lease with the General Services Administration under which the Company will develop the new headquarters for the Transportation Security Administration (TSA). The TSA will occupy 100% of the office space of the approximately 634,000 net rentable square feet Class A office project and a parking garage at 6595 Springfield Center Drive located in Springfield, Virginia. Concurrently with the execution of the lease, the Company commenced development of the project and expects the building to be available for occupancy by the fourth quarter of 2020. On September 16, 2017, the Company completed and fully placed in-service 888 Boylston Street, a Class A office and retail project with approximately 417,000 net rentable square feet located in Boston, Massachusetts. On November 17, 2017, the Company partially placed in-service 191 Spring Street, a Class A office redevelopment project with approximately 171,000 net rentable square feet located in Lexington, Massachusetts. On November 28, 2017, the Company commenced construction of its 20 CityPoint development project totaling approximately 211,000 net rentable square feet of Class A office space located in Waltham, Massachusetts. On December 1, 2017, a consolidated entity in which the Company has a 95% interest partially placed in-service Salesforce Tower, a Class A office project with approximately 1,400,000 net rentable square feet located in San Francisco, California. On December 1, 2017, the Company entered into a 16-year lease with a tenant for approximately 288,000 net rentable square feet of Class A office space to be located in the Company's 2100 Pennsylvania Avenue development project. In 2016, the Company entered into a development agreement with The George Washington University to pursue the development of 2100 Pennsylvania Avenue, a Class A office property with approximately 469,000 net rentable square feet on land parcels located in Washington, DC. The development agreement provides for the execution of a 75-year ground lease for the property upon completion of the entitlement process and relocation of existing tenants anticipated to occur in 2019. Ground Lease On June 29, 2017, the Company executed a 99-year ground lease (including extension options), with the right to purchase prior to 10 years after stabilization of the development project as defined in the lease, for land adjacent to the MacArthur BART station located in Oakland, California. The Company has commenced development of a 402-unit residential building and supporting retail space on the site. The Company’s option to purchase the land, is considered a bargain purchase option and as a result, the Company has concluded that the lease should be accounted for as a capital lease. At the inception of the ground lease, the Company recorded an approximately $29.0 million capital lease asset and liability, which is reflected within Construction in Progress and Other Liabilities on the Company’s Consolidated Balance Sheets. Capital lease assets and liabilities are accounted for at the lower of fair market value or the present value of future minimum lease payments. This capital lease is for land only, therefore, the Company will not be depreciating the capital lease asset, because land is assumed to have an indefinite life. As of June 29, 2017, future minimum lease payments related to this capital lease are as follows (in thousands):
Period from June 29, 2017 through December 31, 2017 | $ | 5 |
2018 | 10 |
2019 | 10 |
2020 | 10 |
2021 | 13 |
Thereafter | 38,778 |
Total expected minimum lease payments | 38,826 |
Interest portion | (9,864 | )
Present value of expected net minimum lease payments | $ | 28,962 |
Acquisitions On May 15, 2017, the Company acquired 103 Carnegie Center located in Princeton, New Jersey for a purchase price of approximately $15.8 million in cash. 103 Carnegie Center is an approximately 96,000 net rentable square foot Class A office property. The following table summarizes the allocation of the aggregate purchase price, including transaction costs, of 103 Carnegie Center at the date of acquisition (in thousands).
Land | $ | 2,890 |
Building and improvements | 11,229 |
Tenant improvements | 871 |
In-place lease intangibles | 2,389 |
Below-market lease intangible | (1,426 | )
Net assets acquired | $ | 15,953 |
The following table summarizes the estimated annual amortization of the acquired below-market lease intangibles and the acquired in-place lease intangibles for 103 Carnegie Center for the remainder of 2017 and each of the next four succeeding fiscal years (in thousands).
| Acquired In-Place Lease Intangibles |  | Acquired Below- Market Lease Intangibles
Period from May 15, 2017 through December 31, 2017 | $ | 660 |  |  | $ | (248 | )
2018 | 590 |  |  | (363 | )
2019 | 367 |  |  | (337 | )
2020 | 243 |  |  | (308 | )
2021 | 96 |  |  | (105 | )
103 Carnegie Center contributed approximately $1.7 million of revenue and approximately ($0.3 million) of earnings to the Company for the period from May 15, 2017 through December 31, 2017. Dispositions On April 19, 2017, the Company completed the sale of an approximately 9.5-acre parcel of land at 30 Shattuck Road located in Andover, Massachusetts for a gross sale price of $5.0 million. Net cash proceeds totaled approximately $5.0 million, resulting in a gain on sale of real estate totaling approximately $3.7 million. On June 13, 2017, the Company completed the sale of 40 Shattuck Road located in Andover, Massachusetts for a gross sale price of $12.0 million. Net cash proceeds totaled approximately $11.9 million, resulting in a gain on sale of real estate totaling approximately $28,000 for Boston Properties, Inc. and approximately $0.6 million for Boston Properties Limited Partnership. 40 Shattuck Road is an approximately 122,000 net rentable square foot Class A office property. 40 Shattuck Road contributed approximately $(28,000) of net loss to the Company for the period from January 1, 2017 through June 13, 2017 and contributed approximately $(50,000) and $0.3 million of net income (loss) to the Company for the years ended December 31, 2016 and 2015, respectively. On August 30, 2017, the Company completed the sale of its Reston Eastgate property located in Reston, Virginia for a gross sale price of $14.0 million. Net cash proceeds totaled approximately $13.2 million, resulting in a gain on sale of real estate totaling approximately $2.8 million. Reston Eastgate is a parcel of land containing approximately 21.7 acres located at 11011 Sunset Hills Road.

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- Definition The entire disclosure for certain real estate investment financial statements, real estate investment trust operating support agreements, real estate owned, retail land sales, time share transactions, as well as other real estate related disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-06(1)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e604059-122996 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04(c)(Schedule III)) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(4)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-24) -URI http://asc.fasb.org/extlink&oid=34714203&loc=d3e608456-123001 + Details
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