Project Progress: Under Construction

75% Complete (success)

About Assembly 455 Grand Union Blvd

Assembly Row, Somerville, MA

Upcoming 267,387 square foot commercial building featuring approximately 237,600 square feet of office space above approximately 29,700 square feet of retail and restaurant space. Office space would be built to accommodate an open floor plan layout with abundant natural lighting and sweeping views. Communal roof terraces would be located on the proposed building's 6th and 12th floors.

The upcoming building will feature a distinctive facade with sections of metal panels and glazed glass curtain wall. 550 structured parking spaces would be constructed within the building’s footprint. The building will be constructed on Assembly Row’s Block 5B, located next to the Alloy condominium and retail development steps to the MBTA Orange Line.

The following are renderings of the proposed building:

Block 5B Photos

Square Feet 267,387



Stories 13
Height (feet) 203

Latest Updates

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Feb 28, 2019

Construction Launches at 455 Grand Union Blvd. at Assembly Row



Jan 18, 2019

PUMA Leases 150K SF in Upcoming Phase 3 of Assembly Row


Block 5b assembly row office space retail somerville mbta orange line federal realty jacobs

Apr 30, 2017

267,387 square feet of new commercial space proposed at Assembly Row


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