17 River Street, Ayr

17 River Street in Ayr is a former Mission Hall built in 1887 by James Jardine. This two-storey building features three bays and is constructed from squared, coursed sandstone. It has a base course, a dividing string course, and an eaves course.

The southwest elevation, which serves as the entrance, is buttressed and gabled with kneelers. It includes a doorpiece with single shafts and a round-arched opening that leads to a two-leaf timber door with a fanlight above. The gablehead is inscribed with '1887 Mission Hall'. Above the entrance, there are two small single windows aligned at the first floor. Flanking both floors are two-light pointed arched transomed windows, which have hoodmoulds and a central roundel for the ground floor windows. The first floor windows also feature roundels that break the eaves to form gablets, and there are square-headed finials.

The building predominantly has fixed pane timber windows, while the central bay at the first floor includes plate glass timber sash and case windows. The roof is covered with grey slate and features a rooflight, terracotta ridge tiles, stone skews and skewputts, as well as brick gablehead stacks with polygonal cans.

The interior was not seen in 1998.