Caerglyn

Caerglyn is a house built in the early 19th century, featuring a roughcast exterior and a slate roof with flat eaves supported by paired brackets. The building is two storeys high and has an L-shaped plan with a projecting southwest wing and a main range that includes four windows. The main range has 12-pane sash windows on the upper floor, while the lower floor has a door and a 20-pane sash window. All windows are set on stone sills. The door has nine panels, three of which are glazed, and is topped with a traceried fanlight. There is a red brick stack at the eastern end of the main range and a red brick stack on the side wall of the southwest wing. The southwest wing also features a two-storey canted bay facing the bridge, with 12-pane sashes on each floor.

On the eastern end of the main range, there is a six-panel door with an overlight, and a single-storey northeast wing that has a six-panel door, a traceried fanlight, and a 12-pane sash window. This house is likely the "large and commodious house newly erected at the head of the bridge" that was advertised for sale in the Carmarthen Journal in 1821. It is marked as Tyssil Castle on the 1891 Ordnance Survey map. At the rear of the property, there is a former coach-house, now used as a garage, which is dated JTS 1851 and was built for J and S Thomas.