58 Mount Stuart Square

58 Mount Stuart Square consists of two houses, each three storeys tall and featuring two window bays. They are constructed of stucco with slate roofs. House No. 59 is slightly set back from No. 58 on its left side. The corners of the buildings have pilaster strips with some Doric detailing. There is a parapet with a band course above the second-floor windows, which are large pane sashes that have stuccoed architraves and reflect the standard proportions of late Georgian style, distinguishing them from later houses in the Square. The first-floor sash windows are similar, and there is a cornice at sill level over a rusticated ground floor, which includes a segmental-headed doorway and a broad tripartite sash window for each house.