Siloah Independent Chapel, including forecourt gates & railings

Siloah Independent Chapel, built in 1840 and enlarged in 1855, features a prominent west front with a large pediment supported by a three-bay Ionic-pilastered façade. The pediment displays an oval plaque that reads 'Siloah Independent Chapel Built 1840 Enlarged 1855'. The first floor is adorned with arch-headed windows framed in moulded architraves with triple keystones. There is a single window on each side, with the central window flanked by shorter sidelights arranged in triples, featuring pilaster jambs, moulded caps, and bracketed sills. The three larger windows include timber 'Florentine' tracery with two arched lights and a roundel above.

The ground floor is obscured by a full-width porch addition, which has a lean-to centre flanked by two five-sided bays. These bays feature arched windows on the front and outer splayed faces, with doors on the inner splayed faces. The centre has a single window framed by bulbous pilasters, with a lean-to roof extending to the front line of the flanking bays, supported by a single cast-iron column. The front porch design is reminiscent of Capel Als Independent Chapel, built in 1852-3 by Rev T Thomas. The flanking bays have hipped roofs that are cut off flat to avoid obstructing the upper windows.

On the south side, the chapel has an unpainted two-storey elevation with four cambered-headed windows below and four arched windows above, all featuring painted stucco surrounds and moulded sill courses. The front is enclosed by a squared rubble low wall topped with cast-iron coping and spearhead railings, with cast-iron panelled piers marking two gateways made by Thomas and Clement of Llanelli. The railings continue along the south side, providing access to the chapel, as well as two gateways leading to the rear Sunday School and No 24 Copperworks Road.

Inside, the chapel boasts a fine interior with a panelled ceiling and a wooden gallery that wraps around all four sides, supported by iron columns. The gallery front features quatrefoil fretted decoration, and there is a large organ case with exposed pipes. The set fawr enclosure includes a round-cornered balustered frontal, with steps leading up to a panelled polygonal pulpit.