Upper Trosnant Baptist Church

Upper Trosnant Baptist Church is a chapel that underwent two phases of construction, originally designed with a traditional long-wall facade and remodeled in 1896 to feature a gable front. The building is a long, narrow rectangular block with its gable end facing the street. It is rendered and painted, likely over stone, and has an artificial slate roof.

The entrance elevation features a gable end that once had pilasters, which have since been removed. The building is two storeys high and has three arched windows with keystones, all fitted with modern replacement glazing. The central entrance consists of a replacement panelled door topped with a fanlight, also arched with a keystone. A plaque on the gable indicates that the chapel was built in 1826 and renovated in 1896. The projecting eaves have plain bargeboards, which were likely altered when the decorative features were removed.

The east elevation has five bays, with the end bays possibly added in 1896, or perhaps only the far north end bay, as suggested by the Ordnance Survey Map from 1882. The first bay is blind, followed by three bays featuring unusual Gothic glazed sash windows arranged three over three. These windows are framed by giant Tuscan pilasters that extend to the eaves. The far north bay has a plain later window. The west elevation mirrors this window treatment but lacks pilasters. Additionally, the north end includes a later addition of a small Chapel Room.

The interior was altered in 1896 during the chapel's enlargement and appears unchanged since then. It features a raked gallery on three sides, supported by iron columns decorated with spiral grooves and foliate capitals. The gallery fronts are panelled with diagonal boarding, and the floor is unusually raked. All benches and pews remain, along with other fittings. There is a decorative iron rail before the 'set fawr' and a classical panelled 'reredos' behind the preaching desk. The interior also includes a plaster cornice and coving, as well as a flat panelled timber ceiling with decorative iron ventilators.