Plasnewydd Presbyterian Church and attached Hall

Gothic chapel with attached hall to rear. Pennant stone in low courses, bathstone dressings and banding; slate roofs. The chapel faces Plasnewydd Square. Gabled front of 3 bays with shallow buttresses; corbelled bathstone pinnacle to centre; pair of 2-light Gothic windows with vesicas to heads; hoodmoulds with floral stops. Broad Gothic doorway with hollow chamfer with floral panels; hoodmould with finial; boarded doors. Trefoil windows to side bays.

Front flanked by stair projections with single window to upper level, and paired Gothic windows to ground floors. Left projection has hipped roof, but R projection has develops into polygonal bell turret; upper stage and flared spirelet in bathstone ashlar with lucarnes to spirelet, band of quatrefoil panelling with gargoyles to angles; lancets.

Elevation to Keppoch Street has 4 bays articulated by shallow buttresses, and ashlar band between floors. At upper level, 2-light windows with Gothic heads; below, 2-light windows with cusped heads. South elevation has simpler windows treatment, no banding, red brick buttresses and vestry. To rear of chapel, facing Keppoch Street is hall. Pennant Stone and bathstone dressings; slate roof. Gabled front with group of 3 lancets (small oculus above) and flanking shallow buttresses. To sides, roof sweeps down over aisles, each with lancet window and Gothic doorway with boarded door.

Said to have gallery on 3 sides with classical detailing supported on iron columns with classical capitals; bowed frontal with pierced metal patterning. Tall Composite columns support wooden boarded ceiling, segmental in section over body of chapel, and flat over galleries. Concave timber frontal to organ gallery; bowed pews.