451 D STREET is located in Boston’s vibrant Innovation/Seaport District and offers numerous amenities including on-site parking, conference center and a fitness center, plus shuttle service to North and South Stations. The property recently underwent a lobby renovation and the addition of a tenant amenity center.

Building Highlights

On-Site Parking

536 parking spaces
(40 underneath building).

Property Overview

Conference Center

On-site conferencing center.

Property Overview

Amenity Center

Brand-new tenant amenity center featuring a lounge area, kitchen, games and conference center.

Property Overview

On-site Cafe

Refreshed on-site cafe offering breakfast and lunch.

Property Overview

Bicycle Storage

Enclosed bike storage.

Property Overview

Fitness Center

3,000 SF on-site fitness center with towel service.

Property Overview

11'4"– 12'3" Clear 

Property Overview

Building Base Description

Property SpecsProperty Specifications

Building Size

477,132 SF


Nine Floors

Clear Height


Year Built/Renovated


Floor Load

150 lbs/SF West Side
300 lbs/SF East Side

Column Spacing

14'6" West Side
18' East Side


Six passenger elevator and one 4,000-lb freight (replacement 2018/20)

Loading Dock

One shared truck-height central loading dock

Fire Protection

Automatic wet sprinklered building to accomodate
predominantly light hazard occupancy spaces

Wired Certification

Platinum Wired Certification
Fact Sheet


Primary Feed to Building

13.8 kV service entrance feeds six 4000A, 480V, 3Ph main switchboards

Tenant Standby Power

Central Lab standby gas-fired generator to provide 5 Watts/SF for the Lab spaces


Multiple service entrances located at the basement level. Verizon, Verizon Business, Light Tower, AT&T and Cogent. Provisions for the future service entrance at the E Street side of the building exist as well

Emergency Power

275 kW diesel life safety generator that serves common area lighting, fire alarm, elevator and fire pump. Tenant spaces utilize battery systems for their emergency lighting requirements



Central lab exhaust and makeup air systems to accommodate 1.5 cfm/SF of lab space


Two 500-ton cooling towers and one 330-ton cooling tower serve three condenser water riser systems. Tenant provides water source heat pump units for space heating and cooling

Heating Plant

Three 1.7 million Btu gas-fired boilers supplement the condenser water loop

Lab Brochure

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