Church of St Mabon

This is a small church built in the Romanesque style. It dates to an unknown period, constructed from partly snecked narrow-coursed rubble with ashlar dressings, some tooled, and covered by a Welsh slate roof with ashlar copings. The church consists of a single-celled nave, a relatively large south porch, a small north vestry, and a small chancel.

The west front is topped by a bellcote containing a single bell within a Romanesque-style arch, under a gable with a cruciform finial. A tall round-arched doorway on the west side features two orders of Romanesque-style motifs – zigzag and pellet – bordered by voussoirs, wide imposts, piers with cushion capitals and a plain surround. Above the doorway is a small round-arched window with similar mouldings. Wide, flat corner buttresses with coping are present, along with tooled quoins and a battered plinth. The south side of the nave has a four-window range of small round-headed windows with simple Romanesque-style mouldings to the heads. A tall, wide gabled south porch features moulded kneelers; a high round-arched doorway with billet mouldings and attached half-round shafts; and tall iron double gates with spear finials reaching capital level, along with a tympanum section above.

Inside, the church has a flag floor, stone benches, and steps leading to a shouldered doorway. The windows have wide splays and surrounds, and there are two smaller, similar windows to the south chancel, alongside a blocked, shouldered doorway. A deep plinth runs along the base. The east window is comprised of three longer lights with a plain continuous hoodmould and a roundel above. Similar corner buttresses are present. A low vestry is located at the northeast corner, with a roof that sweeps down, and three similar windows face north towards the nave. A large, old metal lantern is situated on the southwest corner.

The church is set in a walled rectangular churchyard containing many 19th-century headstones, inscribed in both Welsh and English, and some monuments retaining decorative iron railings.

The interior is rendered, with exposed dressings, and is dominated by a wide Romanesque-style arch with attached shafts and moulded capitals featuring a foliage interlace motif. The roofs are open, with arch-braced trusses supported by corbels – six bays to the nave and three to the chancel. The windows have deep splays. A flag floor is present in the central aisle of the nave. A mid-19th century monument by E Davies of Caerphilly is also present, as is a large font enriched with carvings of leaves, birds, and stars, likely crafted by Prichard. Stained glass by R J Newberry is incorporated, including the three-light east window.