Greenbank Parish Church (Church of Scotland), 36 Eaglesham Road, Clarkston

Greenbank Parish Church is a Church of Scotland building constructed in 1884 to the designs of architect William Gardner Rowan of McKissack and Rowan, in the Early English Gothic style. It was extended in the 1930s by architect Joseph Wilson with the addition of a new chancel and vestry.

The church has a largely rectangular plan with a two-stage square-plan clock tower positioned at the southeast corner, featuring a gabled belfry and octagonal corner pinnacles. The walls are constructed of randomly coursed stugged yellow sandstone with ashlar dressings, offset buttresses with gablet heads, and projecting eaves courses throughout.

Windows are pointed arches with largely Y-tracery, splayed ashlar reveals, projecting hood moulds, and contain leaded lattice windows with stained glass. The roofs are pitched slate with terracotta ridge tiles and eaves-mounted rainwater goods. A carved Celtic cross finial surmounts the eastern gable.

The east elevation serves as the main entrance and features a projecting base course and moulded cill courses. The pointed arched doorway, positioned right-of-centre, is framed by a projecting gabled surround with chamfered reveals, a deep moulded architrave, and flanking piers with gablets. The piers bear inscriptions reading "ERECTED 1884" and "ENDOWED 1889". The entrance comprises a double-leaf boarded timber door with decorative strap hinges and a tripartite lancet window to the timber overdoor. The entrance is flanked by small pairs of windows, with a principal three-light stained-glass window above featuring cinquefoil details.

The six-bay side elevations to north and south are symmetrically arranged. A projecting two-storey gable-fronted porch is located at the left bay of the north elevation, with a secondary door opening at the centre, framed by chamfered reveal, moulded architrave and hoodmould.

The west elevation contains a projecting canted chancel with hipped roof and three decorative stained-glass windows. A two-storey vestry projects into the south re-entrant angle, featuring a hipped roof and pairs of two-over-two timber sliding sash windows in plain ashlar surrounds with chamfered cills. A gable-fronted single-storey transept projects into the northern re-entrant angle with a three-light window.

The interior features a double-height space with galleries on three sides and pointed arches to the chancel and aisles. The majority of the late-19th century decorative scheme survives, whilst that of the chancel dates from the 1930s and later. The roof comprises round-arched timber trusses springing from moulded masonry corbels, with timber boards to the waggon ceiling decorated with painted stars. The pointed-arched nave is carried on giant cast iron columns extending down through the galleries and capped with foliate capitals. Walls largely have timber panelling to dado height and painted render above, except in the chancel which retains exposed stonework throughout. The interior includes tongue and groove timber pews, a panelled gallery balustrade and timber flooring.

The decorative carved woodwork to the chancel, including the pulpit, altar table, lectern and elders' pews, was executed by the Macneill Brothers of Beith and John Crawford of Glasgow. The three stained-glass windows lighting the chancel are by James Ballantine of Edinburgh. The Early English Gothic style pulpit is located to the side. Organ pipes by Blackett and Howden, dating to 1903, are positioned on the southern wall of the chancel within carved woodwork surrounds from the 1930s. The northern transept contains a mural depicting the story of Ruth, completed in 1977. The vestibule to the main entrance features a pair of dog-leg stone stairs with decorative cast iron balusters and coiled carved timber handrails. Late-19th century timber-panelled doors are retained throughout the interior.