The Captain Benjamin Williams House stands just east of downtown Middletown, at the southwest corner of Washington Street and deKoven Drive.

It is an L-shaped two-story brick structure, its original main block set close to Washington Street and facing north.

The main entrance features a doorway with half-round fanlight, and a gabled portico supported by slender round columns.

The main roof's cornice has dentil moulding, and its front face is pierced by three dormers, with peaked or semicircular gables.

[2] The house was built in the 1790s for Benjamin Williams, a well-to-do sea captain (Middletown was then a major shipping center in trade with the West Indies).