Plas-uchaf

Plas-uchaf is a two-storey house built from roughly dressed and coursed local limestone, featuring some very large boulders at the base of the walls, while the masonry at the rear is uncoursed. It has a slate roof. The main structure includes a prominently projecting chimney stack at each end, with a square chimney shaft set diagonally at the south end and a standard square stack at the north end. Additionally, there is a central lateral stack on the west elevation with a square shaft, and a smaller square shaft above the rear wing gable. All chimney shafts are approximately 3 meters or more in height.

The front elevation faces east and has two windows on either side of the chimney, with a door and window below on the right. The windows have been restored and feature mullions and transoms. The door is vertically boarded on the outside and has a two-centred stone arch, with the stonework of the right jamb restored in rubble. There is one dormer window in the rear of the main range and another in the rear wing.

Entering the house leads directly into the hall, while a door opposite now leads to a small rear wing, suggesting a screens passage to the north of the hall. Bar-holes for the west door, which is opposite the main entrance, are still visible. The north and south end bays of the main range are separated by timber framed cross-walls. Two blocked service doorways can be seen to the north, featuring Tudor heads. In the south wall, there are two doorways, one of which is blocked, along with mortices indicating a possible dais canopy.

The floor in the room of the south bay is one step higher than the hall, and this room retains early wainscot on the south face of the cross-wall, with some wainscot from the hall side repositioned in this room.

Upstairs, the hall's central truss is exposed, showcasing a high-collar-beam truss with small V struts above and large arched braces, which have a large roll moulding fixed to the soffit of the braces. In the north bay upstairs, there is a post and panel partition that screens the location of a former staircase.