Hen Dy Cwrdd Chapel

Hen Dy Cwrdd Chapel is a symmetrical building with a cement-rendered gabled front, featuring channels below the gallery windows. It has a slate roof with ridge cresting, boarded eaves, and undulating bargeboards topped with a finial. The facade includes a round attic window, sash glazing below, and a stringcourse over the gallery windows. The central windows are semi-circular headed and paired, separated by a pilaster, with two additional windows on each side, the outer sashes being broader. There is an overall sill band that steps up to the center. The round arched doorway features broad voussoirs and a keystone, with an inscribed plaque above. Steps lead up to panelled double doors and a 7-pane fanlight, with 6-pane sash windows on either side.

The side elevations have round arched gallery windows. To the left, there is a lower cottage attached, and to the right, square-headed ground floor windows.

Inside, the chapel has a square layout with a gallery around three sides. It features a simple cornice, a central rose, and octagonal ventilation panels. The gallery front is unusually deep, with extensively moulded and stained woodwork, including a central pulvinated band and a ramped band beneath adorned with acanthus leaves over cast iron columns. There is a semi-circular arched recess with a label behind the set fawr, and steps leading up to either side with acorn finials on the balustrade. In the lobby, there is a monument to Thomas Evans, the minister from 1811 to 1833, and on the gallery stairs, there is another monument to Edmund Llewellyn, who died in 1829.