4 The Terrace

4 The Terrace is a pair of houses built around 1877 for the Constructor and Chief Engineer of the Royal Dockyard. The site was originally planned in a layout from 1820, but these houses feature a different design. They are constructed of rockfaced grey limestone with slate hipped roofs and have a three-storey facade with six windows. Each end wall has a single bay full-height porch projection. The buildings have a moulded cornice and parapet, along with corniced stone stacks.

The design is loosely related to the 1817 design of Nos 2 and 3 but exhibits taller Victorian proportions and heavier detailing. Features include an ashlar plinth, a ground-floor impost band, a platband, a cornice, and coping. The houses have ashlar rusticated angle quoins, a channelled pier between them, and surrounds to the openings. The windows are 12-pane sash types. The ground floor has arched windows with rusticated surrounds that extend down to the plinth, while the first floor has plain flush surrounds with sill-brackets. The second floor features cambered-headed flush surrounds with sill-brackets.

The end walls have similar three-window elevations with blank openings on either side of the projecting porch bay, which has matching windows on both the north and end elevations. The end elevation has a ground floor arched doorway, which is blocked on No 4, while No 5 has double doors. The rear of the houses is similar, featuring a deep basement and plainer rock-faced stone walls. The houses were marked as 'under construction' on the 1877 dockyard map.