The older part of the building, from c. 1851, is at the corner of Foster and Norwich Street, and was built as a joint venture between the bank's parent, the Worcester Bank, and the Boston and Worcester Rail Road.

This is also a granite three story building, with large Doric columns in the center of its main facade.

These front the main banking hall, which is located in the building's center.

Needing additional space, the bank repurchased the Foster Street building, and joined the two together in 1953.

The bank's presidents include a number of Worcester luminaries, including Daniel Waldo, Alexander Bullock, Stephen Salisbury II, and Stephen Salisbury III.