St Thomas Junction Road Church, 123 Great Junction Street, Leith, Edinburgh

St Thomas Junction Road Church, located at 123 Great Junction Street in Leith, Edinburgh, was designed by William Bell and built between 1824 and 1825. This rectangular-plan, three-bay Classical preaching-box church features a single-storey hall at the rear. The exterior is constructed of cream sandstone with a polished ashlar front, while the rear and sides are made of coursed and squared rubble.

The northeast (front) elevation showcases a broad pedimented central bay that is slightly advanced, flanked by shallow paired pilasters. It includes a round-arched doorway and a window at the gallery level within an advanced panel, featuring a two-leaf panelled door and a semi-circular fanlight adorned with petal-shaped astragals. There are single windows in the outer bays, along with shallow angle pilasters, an entablature, and a tall blocking course.

The southeast and northwest elevations each consist of three bays with single windows. The southwest (rear) elevation features a single-storey gabled hall along the side, equipped with skylights. The main elevation has four bays with single windows, including one in the center with stained glass border glazing, and a wallhead stack at the center.

The church has small-pane timber sash and case windows at the ground floor, which include hopper panes. The roof is a slate piend and platform design, complete with metal flashings.

Inside, the church is arranged in a U-plan with a raked horseshoe gallery supported by slender cast-iron fluted columns. The gallery is panelled and features Greek key pattern and dentilled cornices. A notable feature is the timber concert hall-style tip-up seating with cast-iron sides decorated with grape motifs. The interior was refurbished around 1930, introducing a Renaissance-style pulpit and organ by Rushworth & Dreaper. The pulpit has a double stair and alternating wrought-iron and decoratively carved panels for the balustrades, while the organ is positioned behind the pulpit with decorative timber framing around its pipes. Fluted pilasters adorn the panelled timber communion table. The small hall at the rear boasts a timber hammerbeam roof that rises from stone corbels with pendants.

The property is enclosed by a low boundary wall at the front, topped with decorative iron railings.