Brimfield Center was first laid out in 1721 along a Native American trail that ran through the area, and developed over the years into what is now US Route 20, or Main Street.

This road network was established early in the colonial period, and the town common was laid out in 1721 at the junction of Main and Warren Streets.

[2] The town center is architecturally dominated by Georgian and Federal period housing, with commercial and civic buildings mostly later in construction, as needs for such facilities changed over time, and fire claiming some structures.

The town's Federal period architecture benefits from the residency of architect Elias Carter, who designed a number of homes, notable among them the c. 1823 Hitchcock House at 15 Wales Road; it has a porch with colossal Doric columns.

Town Hall, built in 1878, is a fine example of Stick style, designed by Springfield architect Eugene Clarence Gardner.