50 Post Office Square (formerly 185 Franklin St.)

50postSize: 400,000 sq. ft.
GC: Suffolk Construction
Electrical Crew: 40 at peak

Scope: Comprehensive electrical renovation of historic, 18-story high-rise.  This massive electrical separation project, included revising the building’s power distribution system and paring it down to a base building system for tenant use.  Installation of new power distribution system, emergency power, lighting control system, and upgrades to fire alarm system. Additionally, the 12 floor electrical fit-out for primary tenant, Brown Brothers Harriman.


  • Installation of 4 electric vaults, working in tandem with NSTAR
  • All new power distribution to electrical motors, new life safety generator, and emergency distribution system
  • Demolition of 12 floors, plus lobby, followed by 400,000 sq. ft. build-out of state-of-the-art office space for primary tenant, Brown Brothers Harriman
  • Electrical installations in renovated lobby
  • Updating building’s entire electrical and fire alarm systems, bringing them up to code
  • Upgrading fire alarm system to state-of-the-art
  • Installation of new lighting and lighting control system
  • Parking garage lighting installations
  • Timeline: 2 years, including 6 months electrical separation off peak of cooling season