Main Street, Coldside Church, Boyd Hall

Coldside Parish Church is a large, T-plan, Lancet Gothic church built between 1874 and 1881 by Alexander Johnston, with a smaller adjoining chapel/hall to the north, constructed in 1875 and attributed to Maclaren and Aitken, and Boyd Hall to the east, completed in 1933 by Joseph Johnston. The church is situated on a triangular site at the corner of Main Street and Isla Street and features squared and snecked rubble with pale sandstone ashlar dressings and in-and-out quoins.

The west elevation, which is the principal facade, has a gable with five vestibule windows at ground level and hoodmoulds above a three-light window. There is a battlemented porch at the northwest angle and a narrow, 65-foot, five-stage tower at the southwest corner, which includes a bowed stair projection, louvred bipartite openings in the bell chamber, and a saddle-back roof with crow-stepped gables on two sides, topped with a corbelled parapet course.

The north and south elevations are buttressed and feature gabled transepts at the east end. Extending from the north transept is a single-storey session hall/chapel from 1875, which has an octagonal plan at the west front and a bowed ante-room outshot to the far north, complete with a bowed wallhead stack that breaks the eaves. The eaves are overhanging and supported by exposed timber brackets.

Boyd Hall, located to the east, is a single-storey building with a rectangular plan. It has a quadripartite window on the south side facing Main Street, with a keystoned oculus above in the gable. The east side features a dentiled eaves course, and there is a timber panelled door in the outer left bay, along with a louvred ventilator with a pyramid cap at the center ridge.

Inside, the church has a broad nave and chancel with a wire brace and tie-beam roof. There is a gallery to the west that houses an organ by Foster and Andrews. The east wall features early 20th-century stained glass by Arthur and Charles Moore, while the north, south, and west sides have yellow-tinted glazing with amber borders.

The church's gatepiers and boundary walls consist of square-plan gatepiers with decorative caps at the west point of the triangular site. The walls are made of squared and snecked rubble with ashlar coping on the street-facing elevations, complemented by cast-iron gates and railings.