Thornly Park House, 2 Thornly Park Avenue, Paisley

Thornly Park House, located at 2 Thornly Park Avenue in Paisley, was designed by Thomas Graham Abercrombie in 1890. Originally a single-family home, it was converted into four flats in 1999. This two-storey, four-bay house features a rectangular plan with a gabled roof and shows influences from the late Arts and Crafts movement. The exterior is constructed of varying sized blocks of bull-faced ashlar with ashlar dressings, including stone transoms and mullions.

On the north elevation, the principal facade has three bays on the right, with a low-swept roof over the outer bays. The right bay includes a bipartite window and an open porch, while the left bay features a tripartite window and a tripartite dormer above. The center has a narrow gabled bay with a small bipartite window at ground level and a large four-light transomed window above. The outer left bay has a lower piended roof with single and bipartite windows.

The west elevation, which serves as the entrance, has an irregular gabled bay to the left with a timber-posted porch beneath mock half-timbering. There is a set-back part-glazed panelled timber door with a four-part fanlight and an adjacent window to the left. To the right, there is a four-light transomed window and a bipartite window in the gablehead. The lower bays to the right feature a ten-light transomed canted window and a four-light transomed window at the outer angle, with a gabled tripartite dormer above.

The south elevation, facing the garden, has a low swept roof from a former recessed porch that is now glazed in, along with a small dormer to the left. The center features a canted bay with a ten-light transomed window at ground level and a five-part window on the first floor, leading to a polygonal roof. There are two bipartite windows at ground level on the right, with a small bipartite window in the penultimate right bay on the first floor.

The east elevation shows a variety of elements, including tripartite windows on each floor of the gabled bay. The house has modern glazing and small red tiles, with coped and banded ashlar stacks that have a full complement of cans. The eaves are deeply overhanging and feature bargeboarding, some of which is studded.

Inside, the entrance and stair hall are timber panelled and include a fireplace with a copper relief panel and a retained dog-leg staircase. The former billiard room, now part of Flat B, retains its timber fire surround and overmantel.