The House at 42 Salem Street in Reading, Massachusetts is a transitional Greek Revival-Italianate house. Built sometime before 1854, its gable end faces the street, with the door on the left bay of three, a typical Greek Revival side hall layout. The doorway is topped by a heavy Italianate hood. The windows have shallow pedimented lintels, and the left facade has a projecting square bay. The house was occupied for many years by S. H. Dinsmore, a cabinetmaker who originally worked from a shop in the rear of the property and later moved to a larger space (since demolished) a short way down Salem Street. The house is typical of small industry that developed along Salem Street in the second half of the 19th century.