Lancaster Street School, Lancaster Street, Belfast, Co Antrim, BT15 1EZ

Lancaster Street School is a detached school building set back on the west side of Lancaster Street in Belfast. The original building dates from 1907 and was designed by Blackwood and Jury in the Arts and Crafts style. It comprises a primarily two-storey structure with a three-storey wing. A single-storey addition was designed by R.S. Wilshere and added in 1932.

The 1907 building is roofed in natural slate arranged in three pitches with stone raised copings. The 1932 addition has a half-hipped roof with clerestory windows over a flat roof behind a parapet to the north. Brick chimneys rise from both sections. Gutters and rainwater downpipes are metal; some original cast iron downpipes and hoppers survive, though others are replacements.

The walls are constructed of red brick laid in English Garden Wall bonding with brick pilasters. A cast concrete plinth runs at ground level, with cast concrete used also for openings, moulded eaves and string courses. Windows generally have flat lintels, with Diocletian and Palladian windows to the first floor. All openings in the 1907 building have concrete mullions. The windows to the two-storey building are original timber-framed with lead-glazed casements, some retaining original glass. Windows to the single-storey addition are generally timber replacements. The doors are replacements throughout.

The front north elevation of the 1907 building is distinguished by three gables, with the northern gable projecting forward. The 1932 addition extends to the south, set slightly forward from the 1907 building. The central gable contains the main entrance, which features a concrete surround with a segmentally arched canopy decorated with Art Nouveau carving to the soffit. Splayed reveals flank a four-pane window to the left, and the replacement door has a three-pane leaded overlight. Centred on the first floor directly above the entrance is a Palladian window. The east gable is framed by brick piers and contains a large bipartite Diocletian window with an exaggerated keystone. Centred to the ground floor are two tripartite windows. The west gable features a central bipartite window to the third floor; the ground floor projects slightly, displaying a continuous cornice and housing a four-sectioned window with a recessed entrance door to the west. The 1908 building (likely referring to the 1907 building or a contemporary phase) has four windows with a central door.

The east side elevation is four windows (tripartite) wide. Where it is abutted by the 1932 building, a door from the first floor provides access to a metal fire escape stair. The single-storey gable is blank.

The rear south elevation of the 1907 building displays three main gables. The northern gable is set far back with a two-storey pitched wing and a single-storey flat-roofed extension in front. The ground floor of the main two gables contains multi-paned windows with rendered surrounds, spanning full width between the brick pilasters. The east gable has a Diocletian window matching that on the north elevation. The central gable features a tripartite window. The north gable has bipartite windows on each floor. The 1932 building has two large multi-paned screens incorporating doors.

The north side elevation has two bipartite windows to the ground floor and one to the first floor.

The school sits back slightly from the south side of Lancaster Street, facing down Thomas Street, a residential area of newer houses. The small rear school yard backs onto commercial land. The front boundary is a new wall of red brick with metal vehicular gates.