5 Wellington Square, Ayr

6 Wellington Square is an early 19th-century, two-storey house with a basement and attic, forming part of a mirrored pair of classical houses in a terrace. The building is constructed of painted ashlar and features droved rustication at the basement, along with a ground floor band and cill course, eaves course, cornice, and blocking course. The windows are architraved, with cornices above the ground floor windows.

On the south elevation, there is a central stepped platt that oversails the basement, with corniced, block-pedimented columnar doorpieces and timber doors featuring letterbox fanlights. Above, single windows are aligned at the first floor, and timber doors are aligned below at the basement. The flanking bays have regular fenestration at the basement, ground, and first floors, with an additional narrow window flanking the basement door at No 6. The attic features a tripartite dormer at No 5 and a single dormer at No 6.

The windows are predominantly plate glass timber sash and case, although the dormer of No 5 has modern glazing, and the basement windows consist of 12 panes.

The interiors were not seen in 1998. The property also includes railings and gates, with ashlar copes topped by spear-headed railings, and urn finials that delineate sections, along with gates at the outer left and right.