Garail, 24 Thornly Park Avenue, Paisley

Garail is a large, rambling two-storey house built in 1906 by James Craig Barr and Cook, with subsequent subdivision and extensions in 1946. It combines traditional Scottish architectural elements with more modern features, incorporating a two-stage, parapetted tower and a flat-roofed, circular tower. The exterior is primarily harled, with a sandstone ashlar doorcase. Transoms and mullions are incorporated into the windows.

The east-facing (entrance) elevation features a gabled bay on the right with a substantial classical doorcase, which has a keystoned broken apex pediment, a mutuled cornice, and is topped by a six-light transomed window and a small gablehead. A stepped bay is set slightly back to the left, with a single window near the centre, rising to a prominent stack. A later bay extends to the right, leading to a flat-roofed stair tower.

The south elevation displays broad gabled outer bays. To the right, there's a five-light canted window below a tripartite window, and a dominant gablehead stack. A tripartite window sits within a segmental arch centrally, with a horizontal window set into the eaves at the first floor. The outer left features a flat-roofed angle tower with four windows on each floor.

The west elevation has a broad central bay with two large windows grouped to the left at ground level, beneath a row of six small lights close to the eaves. An angle tower, as described on the south elevation, is positioned on the outer right. A gable to the left projects a single-storey wing with a window to its return, and further windows are incorporated into the ground and first floors of the two-storey return.

The north elevation includes a variety of altered elements, such as an advanced gable off-centre to the right, and a further gable set back to the left with a single ground-floor window. Low, parapetted tower sits within a re-entrant angle, featuring two arrowslit-type lights on each floor facing north and east. A timber door is located in the later semicircular stair tower on the outer left.

A variety of glazing patterns are used in the timber sash and case and casement windows. The east-facing transomed window contains figurative coloured glass, and the later stair tower on the north side incorporates Art Nouveau style coloured glass. The roof is covered in grey slates, with cavetto-coped ashlar stacks topped with cans, and ashlar-coped skews.

The interior was not inspected in 2001.

A harled and slated ancillary building with a gambrel roof is also present, with a garage-type entrance featuring boarded timber doors and a set-back bay with a 15-pane timber sash and case window.

A squared rubble garden wall includes an inset carved stone, and a decorative ironwork gate.