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Total Square Footage 627,428
Total Dollar Volume $166,800,000.00


Established 2001
Website Please click here to verify >>
Phone Number 617-910-5500


King Street is a private real estate investment management firm focused on serving the complex needs of science-based companies and institutions. Our experienced professionals combine big-company experience with a hands-on entrepreneurial approach to execute its tightly defined mission.


King Street Properties
- Sep 13, 2018

Framingham Property Refinanced for $32.97 Million

King Street Properties has refinanced their property at 33 New York Ave in Framingham for $32.97 million via Citizens Bank. 

The property features a 10-acre parcel that contains a single, one-story building, which formerly housed the Metro West's Daily News editorial staff, sales team, and a printing press. King Street Properties plans to renovate the building and expand it with a 9,000-square-foot addition, bringing the total square footage to roughly 107,350, according to information provided to the Conservation Commission. The company also plans to add 49 parking spaces, bringing the total number to 320.

33 New York Ave
- Jul 03, 2018

Replimune Signs Lease at 33 New York Ave, Framingham

King Street Properties plan to transform the former Metro West's Newspaper building into a life science hub is in full swing and they have signed on the startup Replimune as a new tenant.  Replimune, who recently filed a $100 million IPO, is developing oncolytic immunotherapies to fight solid tumors.

The Framingham property is undergoing renovations and expansion including additional parking, new pedestrian walkways, and new landscaping.

33 New York Ave
- Mar 29, 2018

King Street Properties Acquires Framingham Building

The Cambridge based developer has acquired the former Metro-West Daily News building in Framingham from Gate House Media for $9.3 million. They have announced plans to renovate and expand the former headquarters, converting the building into a hub for life sciences companies.

King Street Properties plans to renovate the building and expand it with a 9,000-square-foot addition, making the total space about 107,350 square feet, according to the Conservation Commission. The plans also include adding 49 parking spaces, making the total number 320 spaces.

In addition to making parking improvements, there will also be new pedestrian walkways, upgraded stormwater management system and new landscaping elements to improve the current property, according to paperwork filed with the city of Framingham.

828 Winter Street
- Jun 06, 2017

$135 million financing arranged for 330,000-square-foot Waltham life science office development

King Street Properties has acquired nearly $135 million in financing for 828 and 830 Winter Street, an approximately 330,000-square-foot Waltham life science office development located just off of Route 128 that, upon full completion, will be the greater Boston area's largest multi-tenant lab campus outside of Cambridge. The funds will be used to refinance 830 Winter Street, an existing 185,000-square-foot, 100%-leased building, and construct 828 Winter Street, a 144,910-square-foot speculative building scheduled for completion in July 2018.

Holliday Fenoglio Fowler, L.P. (HFF) arranged financing for 828 and 830 Winter Street through Blackstone Mortgage Trust; the exact amount of financing is $134,767,500. “King Street saw an opportunity to capitalize on the tight suburban lab market and expand their existing Waltham property to meet the growing demand,” said HFF Managing Director Greg LaBine in a prepared statement. “Blackstone shared [King Street's] vision and provided a creative and flexible solution for lab construction financing.”

828 Winter Street
- May 28, 2017

King Street breaks ground on 144,910-square-foot life science office building in Waltham

King Street Properties has broken ground on 828 Winter Street, a 144,910-square-foot speculative life science office building located in Waltham just off of Route 128. Scheduled for completion in Summer 2018 and now leasing, 828 Winter Street will feature 48,000-square-foot floor plates and will be located adjacent to 830 Winter Street, a 185,000-square-foot, 100%-leased building owned by the proponent. Together, at 330,000 square feet, the two buildings will comprise the largest multi-tenant campus outside of Cambridge.

115 Hartwell Avenue
- Nov 09, 2016

Wave Life Sciences anchors new Lexington life science office building

Wave Life Sciences, a preclinical genetic medicine company specializing in treating rare diseases, has leased 58,000 square feet of office space across two floors at King Street Properties' new 91,000 square foot Lexington life science office building, 115 Hartwell Avenue, Banker & Tradesman reports. Wave raised $102 million in an initial public offering (IPO) last year. 115 Hartwell Avenue is slated for completion in the first quarter of 2017.

87 & 200 CambridgePark Drive
- Jul 24, 2016

King Street Properties recapitalizes renovated Alewife lab building with new partner in $43.4 million deal

This past Friday (July 22nd, 2016), local life science real estate investor King Street Properties recapitalized its' recently-renovated, fully-leased lab building at 87 CambridgePark Drive in a $43.4 million deal. As part of the deal, a new investment partner for 87 CambridgePark Drive, Washington, DC-based global alternative asset manager The Carlyle Group, was brought on board. King Street Properties and The Carlyle Group also secured a $24.7 million mortgage for 87 CambridgePark Drive on Friday through Boston Private Bank & Trust Company.

King Street Properties acquired the two-story, 62,492 square foot 87 CambridgePark Drive in June 2014 for $14.8 million from then-owner Pfizer. King Street Properties also acquired neighboring six-story, 221,676 square foot 200 CambridgePark Drive from Pfizer in June 2014 for $39.75 million. King Street Properties proceeded to renovate both buildings and sold the newly-renovated, fully-leased 200 CambridgePark Drive in December 2015 to Morgan Stanley Real Estate Investing for $165.5 million. The renovations of 87 and 200 CambridgePark Drive cost a total of $112 million. A total of $89 million in financing for the renovations was secured in July 2014 through HFF, including $22 million for 87 CambridgePark Drive and $67 million for 200 CambridgePark Drive.

Existing tenants at fully-leased 87 CambridgePark Drive include biotech firm Dicerna, who is leasing 37,000 square feet and moved into its' open floor plan office in February 2015. Ra Pharma, the building's second tenant, leases approximately 26,623 square feet. Tenants at fully-leased 200 CambridgePark Drive include Celgene and Amgen, as well as the headquarters of King Street Properties.

A total of two deeds totaling approximately $43.4 million were recorded Friday for the recapitalization of 87 CambridgePark Drive. The following are the deeds for the recapitalization as recorded in the Middlesex South Registry of Deeds:

Deed One:


Deed Two:

(Note: King 87 CPD LLC is managed by King Street Properties. CPI/King 87 CPD Owner LLC is managed by King Street Properties and The Carlyle Group.)

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