23 Bristol Street

23 Bristol Street is a former chapel, now a house, dating from the 10th to early 11th century, with a remodel in the late 17th century. The building is constructed of limestone rubble with long and short quoins, featuring a stone slate roof and brick gable stacks. Originally a one-cell chapel, it has been adapted into a single-room plan house with a central entrance at the front. The structure has two storeys and an attic, with a one-window range. The right-hand side has a 20th-century porch and door with timber lintels, while the windows have irregular dressings, including a ground-floor window in the former doorway and a gabled eaves dormer. The right-hand gable features an S-inscribed kneeler.

Inside, there is a late 17th-century blocked fireplace with a chamfered bressumer and a winder stair leading to the attic, which has a two-bay 17th-century roof with butt purlins. Historically, Moffat mentions a house called St Helen's "on the spot where formerly stood St Helen's Chapel" in Bristol Street, making this building a remarkable survival.