Trehondda Welsh Independent Chapel

Built of coursed rock-faced sandstone with ashlar dressings to main front, snecked to side, rendered to rear; Welsh slate roof to main building. Gable end facade of 2 storeys has at gallery level 3 windows comprising central round arched 3 light window and two segmental headed windows either side; above is a pediment with relief inscription panel; below a string course the ground floor has similar side segmental headed windows and round arched central doorway with double panelled doors and fanlight. Band course continues along main side elevation to road right which has 6 bays with 6 round-headed windows at gallery level and 4 camber-headed windows at ground floor, with doorway blocked. Similar downhill side elevation. All windows have multipane sashes with rockfaced voussoirs, quoins and sills. Stepped down at S end is the single storey vestry wing with concrete tiled roof and gables over the 2 round headed sash windows which flank the deep gabled porch, which itself has small round headed windows on each side. Further side wing attached rear left. Site is bounded by low coursed rock faced stone walls with coping, cast iron railings and tall gate piers some with cross gabled capstones, the railings now missing front left.

Ornate plaster and board ceiling is ribbed in petal pattern with pitch pine outer border and timber ribs pointing inwards to the large central rose (part missing); round arched reredos on end wall has panelled and fluted pilasters and painted foliage ornament and includes 3 stencilled panels.