Former Presbyterian Church of Wales (now offices)

The building is a former Presbyterian Church of Wales, now used as offices, dating from the late Perpendicular period with Arts and Crafts details. It is constructed of dark brown Pontypridd stone rubble with ashlar dressings, likely Bath stone, and has a Welsh slate roof with lead to the spire. The church comprises a seven-bay nave and six-bay aisles, with a north-west tower, porches at the south-west and north-east corners, and an entrance in the tower.

The street-facing (south-west) elevation features six bays, a vestibule to the north-west, and vestries to the south-west. Each bay contains a two-centred headed window of two lights with mouchettes and reticulated heads, each beneath a relieving arch and flanked by battered buttresses. A parapet runs above, and the roof is steeply pitched with a large chimney stack on the south-east gable. A large porch with battered buttresses is located at the south-west end, featuring a moulded doorway with clustered columns, carved spandrels, and a band of panelling above the doorhead punctuated by an onion flower motif. A similar porch is situated at the north-west end, with a gable over the base of the four-stage, Perpendicular style tower. The tower's ground stage has a 4-centred arch window facing Gileston Road and a porch facing Cathedral Road. The first stage includes similar windows for the ringing chamber, the second has slit windows, and the belfry stage is ashlar, featuring a large three-light opening with Perpendicular tracery above a panelled apron and beneath a segmental arch. A panelled parapet tops the tower, with a small spire above. Large flues rise from the vestries on the south-east gable to the gable stack. The north-west gable is dominated by a large window with reticulated Perpendicular tracery, five lights arranged as 1 + 3 + 1, with ashlar buttresses rising as mullions to the cornice. The rear elevation has similar aisle windows.

The interior was reported in 1975 to have a timber roof spanning a single width, plastered walls, and was converted to offices in 1993-4. The roof is now concealed by a ceiling, although it is reported to survive. The aisles remain as single spaces, allowing visibility of the window interiors and brackets for the roof trusses. The nave is now partitioned, hiding the arcades. All original furnishings have been removed, and the floors covered. Surviving elements include the organ front in the north aisle and some part-glazed doors. The tower was reroofed during the 1993-4 conversion.