Capel Pen-rhiw

Whitewashed stone rubble walls, with a stone slate gabled roof. South-east elevation with a tall centre sash window three panes wide, flanked to each side firstly by a 2-light window with small panes and, secondly, by a square-headed doorway with ledged door. North-west wall lit by one sash window three panes wide. South-west gable end with one semi-circular headed sash window with glazing bars. North-east wall gable end with one small window.

Single cell chapel with gallery. Stone staircase against north-east wall leading to early C19 gallery (replacing a loft) on south-west, north-west and north-east sides. Pews of differing design with panelled sides, possibly each family having been responsible for its own pew; arcaded pew adjoining pulpit probably for elders, with one for deacons in front of it again. Roof on false crucks; six bays, collared principals, three tiers of purlins and ridge piece.