13 Fort Street, Ayr

13 Fort Street in Ayr is a former church designed by David Hamilton between 1807 and 1810, with later alterations by J and H V Eaglesham in 1900. This two-storey, five-bay building has a classical near rectangular plan and is constructed of painted ashlar, harl, and coursed sandstone. It features a base course, a first-floor cill course, an eaves course, a blocking course, and a mutuled pediment cornice, with pilasters dividing the bays.

The southeast elevation, which serves as the entrance, has three square-headed, corniced entrances in the central bays, each with two-leaf glazed timber doors and stained glass fanlights. Above these entrances are single windows aligned at the first floor, while the outer bays are blind with recessed panels.

On the northeast side elevation, there are five bays, with an advanced painted bay on the outer left that includes a single arched keyblocked window and an apron, along with a panel above and a blocking course to the cornice. The remaining bays have four single arched windows at both the ground and first floors, and there is a lower height section at the rear. The building predominantly features stained and painted glass windows, some of which have been replaced due to vandalism, and it has a grey slate piend roof.

Inside, the building was converted into a dance studio by J & JA Carrick in 1984. The interior boasts coffered and coved ceilings, detailed carving on the column capitals, a timber first floor, timber pews, a patera frieze, a dentilled cornice, a shallow coffer ceiling, a polished ashlar keyblocked arch, putti, and keyblocked circular openings in the flanking bays.

Additionally, there is a 20th-century archway with gatepiers, gates, railings, and a boundary wall. The entrance arch has a block-pedimented design with a keyblocked cornice and is inscribed with "1816 Cathcart Church 1929" by William Cowie. It features two-leaf Art Nouveau iron gates and sidelights, flanked by square-plan stone gatepiers. There are also stone gatepiers for the vehicular entrance on the outer right, along with iron gates. The site is enclosed by a coped boundary wall topped with railings.