21, Oxford Street

No. 21 Oxford Street is a house that was originally a gighouse and kitchen, built around 1830. The building is constructed from coursed, squared limestone with an ashlar plinth, and features brick stacks on the left side and rear gables, topped with an interlocking tile roof. It has a double-depth plan that runs at right angles to the street, situated over the former gighouse. The structure is two storeys tall with an attic and has a single-window range.

The tall, narrow gable is lower than the ridge of the adjacent No. 19 on the right. It includes a segmental relieving arch above a linked 20th-century door and left-hand window. The former first-floor hoist door has a cambered head and now contains a 20th-century 8/12-pane sash window, while a small 2/2-pane sash is located in the attic. The left-hand return features two first-floor 8/8-pane sashes, also with similar cambered heads.

Inside, the building includes a timber-framed lobby, a central right-hand dogleg stair, and timber fireplaces, although it was extensively remodelled around 1992. Historically, No. 21 served as a service wing to Nos. 19 and 19a.