Project Progress: Under Construction

75% Complete (success)

About 121 Seaport

121 Seaport Boulevard, Seaport District, Boston, MA


New 17-story, 450,000-square-foot tower located in the heart of Boston's Seaport District. 121 Seaport will feature 400,000 square feet of Class A office space above a two-story, 50,000-square-foot retail podium. 121 Seaport is 100%-leased, with tenants including Internet of Things (IoT) technology provider PTC, who has leased 250,000 square feet, and Alexion Pharmaceuticals, who has leased 150,000 square feet. Both tenants will open new global headquarters at 121 Seaport.


121 Seaport tenant amenities will include a private fitness center and a rooftop terrace with sweeping skyline and harbor views. 121 Seaport will have seven high-speed elevators plus one service elevator; elevators will feature Destination Dispatch technology for reduced travel times. 121 Seaport is targeting LEED Platinum efficiency certification; the building's elliptical design will result in 15 percent energy savings due to less direct solar exposure.


Harbor Way, a 70 foot wide pedestrian retail promenade with 20,000 square feet of tree-lined open space, will be located at 121 Seaport's base. The promenade will feature an interactive pedestrian museum honoring the history of the Seaport District's development. Underneath 121 Seaport will be a parking garage with space for approximately 270 vehicles and 270 bicycles. The following are interior renderings of 121 Seaport:


121 Seaport Interior


The following are exterior renderings of 121 Seaport:


121 Seaport Exterior

Dollar Volume 281,000,000
Square Feet 450,000
Sector

Healthcare

Retail

Office

Stories 17
Height 170
Start Date Jul 09, 2015
Topping Off Date Mar 10, 2017
Completion Date Mar 31, 2018

Latest Updates


C5

Sep 12, 2017

121 Seaport now 100%-leased with Alexion Pharmaceuticals’ lease of 150,000 square feet

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C2 night

Sep 07, 2017

IoT technology provider PTC opening 250,000-square-foot global headquarters at 121 Seaport

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Aug 16, 2017

Curtain wall complete at 121 Seaport, elliptical glass Class A office tower now leasing

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Jun 19, 2017

Interactive museum honoring Seaport District history coming to 121 Seaport ground floor, building facade nears...

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Apr 04, 2017

121 Seaport tops off, glass curtain wall installation underway

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121 seaport new class a office space boston

Jan 30, 2017

121 Seaport elliptical office building nearing top off

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Nov 02, 2016

121 Seaport steel frame nears midway point

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Sep 30, 2016

121 Seaport elevator core tops off

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Gaklery updated

Sep 21, 2016

New interactive website and renderings for 121 Seaport

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C5

Mar 04, 2016

Pile driving is complete at 121 Seaport, and concrete has been poured on pile caps...

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C2 night

Nov 24, 2015

Skanska is hard at work preparing the 121 Seaport site for construction! When complete, 121...

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Default project

Aug 07, 2015

We are excited to observe construction of Skanska USA's 121 Seaport office tower! The building broke ground on...

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