30, West Street

No. 30, known as Mapleton House, is a house dating from the late 18th century. The building features a solid rendered ground storey and painted slate-hung upper storeys, which are likely timber-framed. It has a slated roof and rendered chimneys on each gable end. The house is arranged to be two rooms wide and two rooms deep, with an off-centre through-passage that creates two very narrow rooms on the right side. There is a stair compartment with an open-well stair situated between the front and back rooms, and a kitchen located at the rear left. The house stands three storeys tall and has three windows across the front.

The doorway is notable for its flanking pilasters and entablature, with the frieze breaking forward above the pilasters and decorated with a small flower. It features a six-panelled door with a knocker, where the two bottom panels are flush, along with matching panelled reveals and a fanlight with interlacing Gothic glazing-bars. There are triple-sashed windows on either side of the door, each with six panes in the centre and two on the outside, while above are six-paned sashes in moulded flush frames. A rusticated pilaster-strip runs down the entire left side of the front and the right side of the ground storey. A moulded band is present above the ground storey, and the top entablature features a moulded dentilled cornice, with a frieze that includes flutings and paterae.

Inside, the wood stair has cut strings, shaped step-ends, thin square balusters, and a handrail that ramps up over column-newels. An octagonal skylight was rebuilt in period style around 1989. The interior also includes six-panelled doors and some original chimneypieces, including a large kitchen fireplace with a moulded surround.