Gothic-style chapel with an unusual plan. The main body is U-shaped, with narrow gabled entrance bay masking convex base of 'U', flanked by small lobbies; adjoining to rear, school-room and vestry block in form of a cross-wing. The main body of the chapel is single-storey, the school-room block and entrance bay 2-storey. Constructed of pale grey coursed rock-faced stone under slate roofs with tile cresting; metal cupola to main ridge. Asymmetrical gable-fronted entrance bay, with pair of doorways separated by an angle buttress. Pointed-arched doorways under heads of dressed stone voussoirs with hoodmoulds, containing double boarded doors with strap hinges, reached by splayed stone steps bound by widely-spaced iron railings with scrollwork. String course to upper storey which has a large 6-light Tudor-arched window with 3 cinquefoils under the arch, and a continuous hoodmould. String course to gable apex, which is of dressed stone with infilled ventilators; ball finial. Gabled front has buttresses to angles, that to L with gableted pinnacle, that to R larger and rising into a narrow pinnacle spire of cruciform plan, with flying buttress onto lobby to R. The low flanking lobbies are 2 window with narrow lights, that to L has lancets and a pyramidal roof; that to R has rectangular lights and a hipped roof. Beneath lobby windows, stone tablets with hoodmoulds; that to L is dated August 29th 1889, that to R is blind.
Main body of chapel has a high plinth and dressed stone eaves cornice. Each side is 4-window; 3-light wooden windows with horizontal glazing bars under 4-centred arched heads of stone voussoirs. The windows to L of W side and R of E side are taller with Geometrical tracery, under gables imitating transepts.
North front of school-room and vestry block is 5-window to ground floor and 6-window to upper floor. Transomed windows, with stained glass above transoms and horizontal glazing bars below; those to ground floor are 3-light with stone lintels and relieving arches; those to upper storey are 2-light and immediately under the eaves. West side has central lateral stone stack, with boarded door with overlight to R, and added single-storey bay to L. Upper storey has windows as N side flanking stack. East side has similar boarded door with overlight to L, and is 2-window to R.
The Chapel is set-back some distance behind forecourt gates, piers and railings, which front the road. Central entrance with square gate piers of coursed rusticated stone with large moulded overhanging capstones, 4-sided with trefoiled gablets surmounted by ball finials. Similar end piers. Between end and gate piers, walls of snecked rock-faced stone with dressed chamfered stone copings, surmounted by plain iron railings with scrollwork motifs to centre and decorative wave-moulded finials. Double cast iron gates with similar finials; dog bars, a lock rail with circle motifs, and a central arch and scrollwork motifs above lock rail.