Capel Sion

Capel Sion is a chapel built in 1859, featuring a roughcast lateral front with four bays. The front has a smooth rendered plinth, raised quoins, and voussoirs above round arched openings. The slate roof is adorned with bargeboards and bracketed eaves. In the center, there are two long arched windows with 14/9 hornless sash windows that have radiating upper glazing. Each outer bay has a first-floor arched window with 8/6 hornless sashes and similar glazing. The slate sills complement the matching outer arched doorways, which have grained doors with three long panels and 6-pane radiating fanlights. A round plaque in the center is inscribed with "Capel Sion Cilcennin. Adeiladwyd 1859," featuring smooth rendered voussoirs. The right end is made of rubble and has a 12-pane hornless sash window on the first floor, with stone voussoirs and a blocked window below. The left end also has similar rubble and sash windows. The rear is painted rubble with two long windows matching the front.

Inside, there is a three-sided gallery, likely from 1859, with simple tall rectangular panels, a moulded sill, and base. The gallery is supported by grained plain iron columns, some featuring boxed-in capitals. It has tiered seating, with doors and ramped ends. The large pulpit has a central panelled canted section flanked by barley-twist newels, with outer curved short balustrades and balancing staircases featuring turned balusters and newels topped with ball-type finials. The inner newels continue as posts that support bracketed oil lamps. Behind the pulpit is a round arched plaster surround with consoles. There is a big seat with panelled sides and end doors, along with box-type Deacon's pews flanking the pulpit, which also have doors. The inner lobbies feature coloured glass in the marginal glazing. The chapel has a 20th-century ceiling with a central rose and freestanding pine pews from the same period.