433 Vose Avenue is a 2 1/2 story, 2 bay, rectangular plan, Gothic Revival, wood frame, residential building. Constructed c. 1875, the clapboard-clad house features a crossed gable roof, decorative pierced vergeboards, semi-hexagonal bays and orioles and a Gothic-peaked window in the gable apex. One of the oldest houses on Vose Avenue, it was owned by T. Lyon in the 1880s and 1892. By 1904 it was owned by Michael Lyon. Immediately to the north of the house is a small one story, 3 bay, side gable-roofed, clapboard-clad, cottage that housed a former flower shop. At the rear of the property is another small cottage with Gothic detailing including a pier-supported porch. Originally, greenhouses extended to the north where the Mountain Station parking is now situated.