Castle House

Castle House is a late 17th-century building that was remodeled and later served as Frome Hospital in the late 19th century. The front is made of red brick with stone dressings, likely from the mid-18th century. It features a stone plinth, chamfered quoins, a first-floor band, a moulded cornice, and a brick parapet with a stone coping. The building has two storeys and an attic, topped with a pantile roof. There are five windows with cross-glazed sashes set in moulded stone architraves, although the ground floor windows were blocked at the time of the 1979 survey. The central ground floor window, which was formerly a door, has a bracketed stone pediment with a fluted lintel and a shaped tablet.

The return elevation facing Trinity Street includes a two-window rubble extension with end quoins and outer ogee mouldings on the dressings, as well as a similar doorway with a bracketed pediment. There are two blocked lights in the gable. Castle House is noted as the oldest surviving brick building in Frome. The rear features a gabled stair turret. Inside, there are late 18th-century fittings, including modillion and rosette ceiling cornices. The staircase has an open string, turned balusters, and a moulded mahogany handrail, leading to the attic landing. The building became a Cottage Hospital in 1875 and was disused at the time of the re-survey in 1979.