Capel Bethel including attached vestries to rear and forecourt wall and railings

Capel Bethel is a Beaux Arts chapel with attached vestries to the rear and a forecourt wall with railings. The building comprises a two-storey, three-bay gable-end facade constructed in rock-faced stone laid in shallow courses with extensive Bathstone dressings and banding.

The front elevation displays four banded pilasters with cartouches at cornice level, whilst the gable is treated as a broken pediment. At the centre is a large round-headed window with sill band and impost band that breaks into the pediment and features a tall keystone linking to a cartouche in the gable apex inscribed 'Bethel'. The window is three-light with transom and small panes, incorporating a triangular motif above the transom. Below this sits a Bathstone portal consisting of a semi-circular hood with dentils, supported by Ionic columns on plinths. The portal contains double half-glazed wooden doors above which is a Bathstone tympanum with finely jointed voussoirs reading 'Calvinistic Methodist' along with the dates of building and enlargement. Flanking the doorway are small multi-pane windows, each bearing a circle, beneath substantial Bathstone lintels. The outer bays have three-light multi-pane windows at upper level, articulated by Ionic columns with Bathstone lintels and aprons. The ground floor features large six-over-six-pane sash windows in architraves with tall keystones that break into semi-circular pediments.

The two-storey, four-window side elevations are rendered and topped with slate roofs. A metal vent with pyramidal cap rises from the ridge. Round-headed windows light the upper storey and square-headed windows the lower, all with keystones. The north side retains original sash windows with marginal glazing; the south side has been fitted with replacement uPVC glazing.

Vestries project at right angles from the rear, accessed from the advanced south gable-end. The front is slate-hung with three six-over-six-pane sash windows under segmental heads to the upper storey. The ground floor has a central panelled door with boarding beneath a multi-pane overlight, flanked by sash windows. A small four-pane window sits to the east side of the advanced front. The north end is rendered with three sash windows to the upper floor and two to the ground floor.

The chapel is surrounded to the south and east by a low forecourt wall with iron railings topped with fleur-de-lis finials, gate piers with pyramidal caps, and decorative double iron gates. Within the south-east corner of the enclosure stands a 19th-century obelisk to the Winston family.

Interior

The entrance opens into a lobby with a timber and glass screen separating it from the chapel proper, with stairs to each side leading to the gallery. The ceiling is flat, boarded and panelled with a deep central decorated rose and moulded plaster cornice. A U-plan gallery is supported on iron columns of two designs: three fluted columns with foliage capitals at the entrance end of the chapel, and round columns with decorated bell capitals towards the pulpit. The gallery has a polished moulded wooden front, which continues on the fourth side below the organ loft and supports turned rails.

The pipe organ is set within a round arch, flanked by decorative marble frames containing tablets, including one to Parch. Evan Evans on the left. Below the organ is recessed wooden panelling to the rear of the pulpit, beneath a segmental wooden arch with keystone. The pulpit is polished wooden with a canted front, high railings and stairs to each side, surrounded by a set fawr. To the right of the pulpit is a marble tablet to Parch. Rees Evans (1845-1929). Three banks of pews with doors line the chapel (those below the gallery are canted).

The vestry block contains a hall on the ground floor with entrance lobby, panelled doors, wainscot panelling and benches facing a pulpit at the north end. Classrooms and other spaces occupy the upper floor.