Numbers 1 to 6 and Attached Area Railings

Numbers 1 to 6 are a terrace of six houses built between 1789 and 1820 by Daniel Hague. Constructed from limestone ashlar with brick stacks and a slate mansard roof, these houses are designed in the late Georgian style and feature a double-depth plan. Each house has three storeys, a basement, and an attic, arranged in a three-window range. They form part of a symmetrical layout on the west side of Portland Square, with the end houses slightly projecting and featuring an ashlar attic storey.

The ground floor is rusticated, with pilasters extending from the first-floor plat band to a modillion cornice and parapet. The doorcases on the right side have Ionic columns and modillion pediments, along with batswing fanlights and six-panel doors. The ground-floor windows have rusticated voussoirs, while the upper windows have plain voussoirs, with six-over-six pane sashes. The end gables include a large central semicircular-arched doorway with a Gibbs surround and a similar stair window above.

Inside, the structure was largely rebuilt around 1974, although the facades were preserved, and there are restored lateral, curved open-well stairs in the middle. The terrace also features spear railings to the basement areas. This group of houses is noted as part of Bristol's "most complete and beautiful square."