Berkeley Partners Purchase Watertown Office Complex for $23 Million

Sasaki Associates, LLC has sold their headquarters, the Chase Mills Building at 64 Pleasant Street in Watertown, to Berkeley Pleasant Street Owner, LLC - an affiliate of Berkeley Investments - for $23,000,000. 

The property features 95,031 SF of office space previously tenanted by Sasaki. The property sits next to the Charles River with close proximity to Watertown Square.

“Historic buildings are home to a range of features that are attractive to life sciences companies, and we see great synergy between the needs of the market and the benefits this building provides,” said Young Park, president of Berkeley Partners. “We look forward to collaborating with Watertown to bring exciting new innovation to the community and to continuing our partnership with Sasaki as we reinvest in this special space.”

“We have been a Watertown firm since our founding in the 1950s and have enjoyed the tremendous opportunities the Chase Mills site affords. As a growing firm of 300 people needing to collaborate in new ways to meet the needs of clients locally, nationally, and globally, we have outgrown the space, and the time has come for us to relocate,” said James Miner, CEO of Sasaki. “Throughout this process, it was critical to us that this special space be cultivated creatively and thoughtfully. Berkeley’s experience converting historic mill buildings in the area combined with their inspired vision for 64 Pleasant Street and invitation to keep us involved in the future design process made it clear they were the right choice.”

Berkeley plans to preserve and modernize the 97,000 square foot building while maintaining the current square footage. The updates will include better airflow and energy efficiency, improved ADA accessibility, and new interior architectural elements such as higher ceilings and exposed beams. Sasaki will be part of a design team led by SGA to update the space and surrounding site.

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