Built in 1905, it is a prominent local example of Beaux Arts architecture, and served as the town's center of government until 1977.

The building is shaped like a vertical cube, three stories, with single-story wings extending to the sides.

The roof rises above a copper cornice and has a clock built below a domed cupola.

The main entrance has an elaborate surround, with pilasters rising to a heavy gabled pediment.

In 1977, the town government offices were moved to a building that was formerly used by the Greenwich High School at Field Point Road.