Rhosson Uchaf/Rhosson Farmhouse

Rhosson Uchaf, also known as Rhosson Farmhouse, is a farmhouse that was raised a storey in the late 18th century or early 19th century. It is constructed from whitewashed rubble stone and features a grouted slate roof, with a coped gable at the north end and a small stone stack to the north and a larger stone stack to the south. The building has two storeys.

The east front is dominated by a massive external chimney breast that is square at the base and tapers at the first-floor sill level to a very large conical stack that begins above the eaves. The tapered sides of the chimney are slate-hung, and there is a projecting course of slates on the stack just below the top. On either side of the chimney are lean-to outshuts, which were noted by J Romilly Allen as a characteristic of the Dewisland round-chimney houses in 1902.

The outshut on the right has a thick slate roof and serves as a porch with a plain doorway, three steps inside, a round-arched house door against the chimney, and a seat to the right. The left outshut also has a thick slate roof and features a 20th-century window. The house front is four windows wide, divided by the external stack, with 12-pane sash windows to the right and early 20th-century 4-pane sash windows to the left. The ground floor has outshuts on each side of the stack and one sash window beyond each side. The left side has a rounded projecting eaves course between the window heads and to the left of the left window.

The north end wall includes one first-floor window and a ground floor lean-to. The rear has lean-to outshuts that are not continuously roofed, with stone cross-walls in the centre and near the left end, and they are topped with corrugated asbestos roofs.

Attached to the south end, under the same roofline, is a two-storey outbuilding with a corrugated asbestos roof, a small eaves window, and a ground floor door adjacent to the house's end wall. The south end wall features outside stairs leading to a loft door, and there is a rear lean-to. The interior has not been inspected.