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CBT Leaving Downtown HQ For 50K SF Sublease In Charlestown

A rendering of the outdoor space CBT will occupy at One Constitution Wharf.

Architectural firm CBT is leaving its longtime Bulfinch Triangle home near Government Center for a new Charlestown headquarters.

CBT signed a four-year sublease with for 40K SF of office space and 10K SF of outdoor space at Jamestown’s One Constitution Wharf. The sublease will begin next year, ending CBT’s 20-year stay in its 36K SF office at 110 Canal St. near downtown Boston, according to a spokesperson.

The location will include expanded makerspace, a photo and video studio, and it will allow CBT to study resiliency measures along the harborside, the firm said.

“Being on the harbor and experiencing sea-level rise firsthand will positively elevate the work we’ve been immersed in for years,” CBT Senior Principal Alfred Wojciechowski said in a statement.

Financial terms of the lease were undisclosed, and Jamestown didn’t respond to a request for comment. Colliers represented CBT in the lease.

"The office at One Constitution will provide an exciting new environment for CBT with panoramic water views, vibrant outdoor space and abundant natural light," Colliers brokers Lauren Vecchione and Kristin Blount said in a joint statement.

CBT is the architect of Boston projects including Bulfinch Crossing, the massive redevelopment of the Government Center Garage, and residential towers The Beverly in West End and Avalon North Station. The firm most recently was named as the master planner for a massive South Boston public housing community redevelopment and is the designer behind The HYM Investment Group’s 161-acre Suffolk Downs mixed-use development.

The Charlestown neighborhood is heating up with development in recent years with the mixed-use redevelopment of the former Hood Dairy plant and other industrial and public housing projects. Jamestown bought Constitution Wharf in 2019 for $114M from National Development and Charles River Realty Investors.

Boston-based Quaker Lane Capital and private equity firm Alcion Ventures bought the 63K SF 110 Canal St. from previous owner Joseph Slesar earlier this month for $24M, according to Suffolk County land records. A representative for Quaker Lane wasn't immediately available for comment.