State Office Building Development

A catalyst for neighborhood renewal in downtown Hartford, the renovations to the State Office Building are the first major rehabilitation of the structure built in 1931, listed on the National Register of Historic Places. Salas O’Brien provided comprehensive services on restoring and renovating the building exterior, central exterior courtyard, and building entrances.

The first phase of this renovation involved the demolition of the Buckingham Street garage and replacing it with a 900-plus parking garage and retail space. Renovations to the State Office Building include gutting interior masonry walls and partitions and replacing all mechanical and electrical systems. Also, we reconfigured existing offices into contemporary open spaces, replaced 750 window air conditioners with a modern heating and cooling system, designed new mechanical systems with the latest energy efficiency, and installed fire alarms, fire protection systems, and telecommunication systems according to current codes.

Completion Year



321,500 square feet

Construction Cost

$200 million

Project Partner

Amenta Emma Architects


2021 ENR New England Awards, Government/Public Building – Best Project

Connecticut Building Congress Project Team Awards – Merit/Civic

AIA Connecticut Sustainable Architecture Awards, Renovation/Adaptive Reuse – Merit Award

AIA Connecticut Design Awards, Institutional – Merit Award

AGC of Connecticut Build CT Awards – Project Excellence Award

Project Photography

Robert Benson

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