The Massachusetts subsidiary of Vermont's BankNorth Group Inc. grew substantially last week with the addition of 10 former BankBoston Corp. branches.

Burlington-based BankNorth, with $3.2 billion of assets, closed a $52.5 million deal Friday for the branches in Berkshire County. The branches, with $274 million of deposits, are to be merged into BankNorth's First Massachusetts Bank, boosting its assets to $1 billion.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.