Outbuilding at Plas-uchaf

The outbuilding at Plas-uchaf is a partly timber-framed structure dating from an unspecified period. Its gable walls and the lower half of the rear wall are constructed from local limestone rubble masonry. The timber framing at the front is set on a plinth approximately 1 meter high and consists of small square panels. The front features six panels high and two storeys, while the rear has three panels high.

The front elevation, facing east, includes two upper windows that have been restored in their original openings within the timber framing, along with a small window in the stonework to the left. The ground storey has two restored windows and a door. At the rear, there are two similar windows in the timber framing and two in the lower stonework. Additionally, there is a single-storey extension on the left side, which has an end chimney and two front windows, as well as two small roof lights at the rear.