Exterior
An unusual bow-fronted chapel with some classical-style detail. Symmetrical 2-storey 3-bay front, the central bay slightly advanced, the outer bays bowed and swept back to angles, as if to form end piers. Constructed of large blocks of coursed limestone; shallow hipped slate roof, set back behind parapets. Round-arched windows with plain stone surrounds, containing margin-glazed small-pane sashes with radial glazing. Central portico on Tuscan columns, the entablature supporting a raised pedimented tablet reading 'Built 1827 / Renovated 1875'. Inside portico, round-arched stone doorcase with wooden door of 4 leaves, each of 4 moulded panels, under a radial fanlight. Moulded string course to parapets, with wide panel above central bay, which formerly read 'Congregational', crowned by a triangular pediment. Balustraded parapets to outer bays, with panelled end piers, formerly supporting tall urns with finials (now freestanding on ground). The E and W sides of the chapel are of rubble stone, 3-window to ground floor and 2-window to upper storey, the windows as front with round-arched heads of stone voussoirs. Rear has 2 similar windows at gallery level, lighting pulpit; adjoining beneath, added single-storey school-room and vestry. It is constructed of brick, mainly rendered, under a slate roof. It projects to W with entrance facing N, containing double panelled doors under a segmental head; lateral stack to W end. Its S elevation has 3 stepped windows under a wide gable, top-hung with small-pane glazing; projection to W has segmental-arched door and window.
The chapel is set back behind forecourt walls & railings. Square gate piers of large blocks of coursed dressed stone with chamfered angles, with moulded pyramidal capstones with ball finials. Similar flanking walls with pecked chamfered stone copings, on a plinth which gets higher to E as ground falls. Narrow end piers with triangular heads, against adjacent buildings. The walls support cast iron railings with scrollwork. Later cast iron double gates with lozenge frieze to lock rail.