Castle House

Castle House is a three-storey building with a five-window front made of scribed stucco, featuring quoins, a cill, and a plinth. The slate roof has bracket eaves and modern brick chimney stacks. The windows are recessed horned four-pane sash windows, with some colored glass in the former surgery windows. In the center, there is a classical doorcase with a trabeated frieze and fluted piers, which have later encasing at the bases. To the right, there is a narrower doorcase with unusually tall brackets supporting the cornice. Both doorcases have six-panel reveals and four-panel doors.

To the left, there is a single-storey former surgery extension that has a similar window and a blocked doorway on its facade. This wall continues left along Castle Street, bordering the courtyard, and includes a boarded double gate entrance, which ends at a six-panel garden door.

The building has red brick gable ends and an attached full-height cross range. The rear features twin gabled brick sections with a rubble plinth and a centrally located arched-headed window, along with a Victorian timber porch. There is a single-storey and attic stable range extending to the right, constructed of red brick with a slate roof, a central gable (which formerly had a hoist), and a dovecote at the north gable end, along with horned sash windows. The rear wall of this stable range backs onto the Zion Chapel burial ground and is made of particularly large rubble stones, featuring a red brick chimney stack and a small-pane casement window. On the opposite side of the courtyard, adjacent to the boundary wall, there is a rubble coach house with brick cambered voussoirs, which once had a cottage attached to the right.

Inside, the building retains much of its mid to late 18th-century plan form and some original details, although it has been divided into two properties. There are four-panel doors and some six-panel doors on the upper floor. The drawing room features segmental arched recesses and a ceiling rose. There is a segmental arched opening leading into a long passage on the right that connects to the rear kitchen, which overlaps with the kitchen that formerly served the right-hand property. The staircase has a panelled dado, a moulded handrail, tread ends, and a 1930s newel post, along with a small-pane sash window in the stairwell. The stairs leading to the right-hand property are now blocked, but both first-floor landings remain intact.