After graduating from Harvard in 1774, David Osgood moved to Medford to serve as minister for the town's parish church. Records of the costs for materials in building his two-and-a-half-story house in 1785 survive, as do Osgood's diaries. The windows are framed well out from the clapboard facade, and the roof comes down to the second floor windows. A center bay doorway framed with pilasters and a pediment provides the only architectural ornament on the exterior. Much of the interior woodwork is original, although some dates from the nineteenth century. In 1874 Osgood's daughter left the house to the Unitarian Universalist Church. After 1961 it became an education building for the church. Constructed of gray granite from Mason, New Hampshire, with pink granite from Dorchester quarries, the Gothic-style church across Powder House Road is the fifth constructed for the first parish in Medford. The first floor and asymmetrical tower are masonry, whereas the upper section of the sanctuary is wood frame sheathed in wood shingles, flanked on the right by a projecting one-story porch.