Church of St Simon and St Jude

The Church of St Simon and St Jude is a 15th-century church, originally built of rubble stone, primarily red sandstone, with slate roofs and coped gables. It features a double-nave plan and includes a later square block to the southwest, believed to be a truncated tower. The north aisle appears to be the earlier part of the building, as evidenced by a straight joint and battered plinth, though its detailing is consistent with the south aisle, suggesting all visible features are from the 15th century. A tower was added later, as indicated by a straight joint to the south aisle.

The tower has heavy cornerstones and a segmental-pointed west door, all from the 19th century. The gable stonework is largely renewed, with a 19th-century apex lancet window containing a hoodmould and housing a single bell. A cross finial tops the west gable, while the east gable has a small chimney. The side walls have 19th-century lancet windows. The south aisle retains two original 15th-century two-light red sandstone windows with depressed arched heads, one of which is a 19th-century copy. A 15th-century pointed doorway features a hollow chamfer and broach stops. The east end has a small square chimney on the gable, mirroring the tower’s east gable. The east window is a similar 15th-century two-light design. The north aisle's north wall includes a 15th-century three-light window, longer than the south aisle's, as well as two further two-light windows, a blocked pointed 15th-century doorway, and one 19th-century two-light window. All original openings are hollow-chamfered. The west wall has a battered base and a 15th-century three-light window.

The tower contains a 19th-century ceiling and a red sandstone archway leading into the south aisle. Both aisles feature fine 15th-century wagon roofs constructed of plastered panels and moulded timber ribs, each divided into six by twelve panels, with moulded wallplates. Unusual projecting timber baulks, resembling corbels, extend slightly through the lower plaster panels on each side, numbering approximately 37. The four-bay arcade is built of red sandstone, with chamfered arches extending down into chamfered piers. The walls are cement rendered.

The church contains a medieval, octagonal font made of conglomerate stone, with a later 19th-century limestone ashlar base. Later 19th-century pews include elaborately carved stalls. A five-sided pine pulpit features open traceried top panels. Sanctuary rails are supported by twisted brass standards. The east window contains stained glass from 1885 depicting the Ascension, commissioned by the Edwards family of Blaensawdde. A marble plaque on the east wall, also from 1885, details the Edwards and Gwyn ancestry of Howel Gwyn. An oval plaque on the north wall commemorates John Lewes of Penycrug, who died in 1813, and another commemorates the Lewis family of Panthowel, 1745-1834, crafted by Thomas & Son of Brecon. The north wall also displays a two-light stained-glass window depicting the Good Shepherd and Light of the World, created by Robert Newbery in memory of J. Lewis of Nantgwynne, who died in 1896. Late 19th-century vestry screens, panelled with incised floral roundels in the top horizontal panels, are located at the east end of the south aisle and in the last bay of the arcade. The vestry features a fireplace on the east wall and displays various reset memorials, including those for Sarah Jeffreys of Llwynfron (died 1790), Catherine Hopkins of Blaensawdde (died 1786), and a deteriorated memorial to an Edwards (died 1720).