Eglwys Sant Ioan/Church of St John

This is an Anglican church built in the Perpendicular Gothic style, dating from the 18th century. It is constructed from rock-faced squared Llanelli stone with Bath stone dressings and slate roofs. The church comprises a nave and aisles, a north bellcote, a north porch, a north transeptal organ chamber, and a chancel of equal height with the aisles. It features coped, shouldered gables.

The nave has three flat-headed, three-light cusped windows to the clerestory. The aisles contain four-light, flat-headed windows with Tudor-arched uncusped lights; two are on the north side, with a Tudor-arched doorway and porch to the left and right respectively, and four are on the south. A pointed, three-light window is located on the west side, accompanied by stepped buttresses and two-light, ogee-traceried, flat-headed aisle windows. The north aisle’s shouldered gabled porch has a four-centred doorway with carved spandrels depicting vine and passion-flower, along with a hoodmould. A relief shield and cross are positioned above the doorway. A similar doorway and plank door are within the porch, alongside small, traceried, two-light windows to the sides. The north transept has two tall, flat-headed windows of two lights with ogee tracery, and an ashlar single octagonal chimney on the ridge. The gabled ashlar bellcote, situated between the chancel and nave, has two bell openings. The chancel's east window is large and pointed with five lights, featuring a string course below. It also contains single, ogee-traceried, flat-headed clerestory lights on each side, above the aisles. The short north chancel aisle has a two-light, ogee-traceried east window, mirrored by the east window of the full-length south aisle. Gabled buttresses are positioned between the nave and chancel, they are more prominent on the south side, which lacks a transept.

Inside, the nave consists of four bays with double-chamfered pointed arches on octagonal piers with moulded caps. There is a similar chancel arch, along with a low screen wall. The roof is supported by scissor trusses, and the walls are plastered. The chancel has a two-bay south arcade, sedilia, and a shelf in the south wall. Black lettered inscriptions are present in the nave and chancel, taken from the Jubilate Deo and Genesis in the nave, and from the Communion service in the chancel. A carved stone reredos was added in 1921. A total immersion font is located under the floor at the west end. The east window of 1902 was designed by A. J. Dix, with architecture by E. P. Warren of Oxford, depicting Christ and the four Evangelists. The chancel south aisle’s east window, dated 1906 (or 1890), was created by Burlison & Grylls. The south aisle's southeast window, from 1926, depicts St Peter, the Good Shepherd, the Light of the World, and St John. The south aisle's central window was executed by Shrigley & Hunt of Lancaster, along with the "Loaves and Fishes" window, dated approximately 1966.