17 West Street is a wood framed home built for merchant and politician, Jedediah S. Carvell (1832-1894) in 1877. It is one part of what was originally a much larger Second Empire style home. Westbourne was renovated, reoriented and reduced in size throughout its history, but it remains an impressive building. Located on West Street among a number of historic homes, it is in keeping with the heritage ambiance of West Street. The designation encompasses the building's exterior and parcel; it does not include the building's interior.