Church, Old School Road, Garelochhead

The church, located on Old School Road in Garelochhead, dates to 1837 and was enlarged in 1894. It is a simple, rectangular Gothic hall church built with cream-coloured harl, complemented by polished sandstone ashlar margins and dressings. A base course and quoin strips define the exterior, with an eaves moulding adding detail. Lancet windows are deeply moulded and have chamfered margins.

The south elevation features three symmetrical bays, with the centre bay projecting above the eaves to support a Gothic ashlar birdcage belfry and a slender broach spire. Cross finials adorn each gablet, and blind lucarnes are visible on the spire, topped with a lead weather-vane finial. A pointed arch entrance, dating from the 1930s, leads to a two-leaf wooden door with a multi-pane fanlight and upper panels. A large window above the entrance has three-light divisions, flanked by bipartite lancet windows.

The east elevation presents a four-bay main block which is extended to the outer right with a late 19th-century two-bay section connected by a flat-roofed link bay to a lower, single-storey vestry. The main block is symmetrical with tall lancet windows. A metal plaque commemorating the war dead of both World Wars is positioned between the outer left and penultimate bays. The link block features a lancet-headed doorway and a window, with a pedimented console marking the start of a bracketted cornice, above which a slate, half-piend roof of the north apse is visible. The slightly advanced gable of the vestry has a broad, pointed-arch window (three-light division), a blind roundel at the gablehead, a fleur-de-lys finial, and a squat coped apex stack.

The west elevation displays a symmetrical four-bay main block with a later 19th-century addition to the rear, now partially obscured by a modern rendered addition to the west.

The north elevation features four symmetrical bays of the later 19th-century addition, with pointed-arch windows directly under the eaves (bipartite divisions). The north gable of the main body of the church rises behind, with a modern, flat-roofed, prefabricated addition attached to the right.

The windows are metal-framed, with cusped trefoil heads and leaded lights with low transom divisions. The grey slate roof has ashlar coping to the skews and skewputts, accented by scroll bracketted skewblocks.

The interior consists of a plain vestibule with doors to the right and left, leading to the main body of the church, and a stair on the left providing access to a gallery. A wooden gallery is located at the south end, and a central stained glass rose window is complemented by a side window with coloured border glass. The plain cornice is above a painted ceiling with large plasterwork roundels with cast-iron grilles and smaller round ceiling lights. Tall lancets illuminate the church, and an organ occupies the left side. An apsed chancel is at the centre of the north end, set within a Tudor arch, lit by cusped lancets. Earlier 20th-century altar furniture and a pulpit dedicated on April 28, 1935, to Archibald Grieve McCall (1872-1929) are also present. A committee room at the rear of the north side was refurbished. Additional items include 1930s stained glass and a World War One memorial plaque.

To the southwest of the main entrance stands a late 19th or early 20th-century Celtic cross monument, dedicated to the memory of John McDonald of Belmore (died 1891). It features heavily carved interlacing decoration, bosses, and rope moulding on the ring head.

A rubble boundary wall with semicircular coping extends around the property. Large gatepiers are topped with pyramidal caps and have a base course and stop-chamfered arrises.