Former Stable Block at Gwern-y-braichdwr including adjoining Revetment Wall

The former stable block at Gwern-y-braichdwr is a rectangular structure built from local stone, featuring a steeply-pitched slate roof. On the east side, there are two stable entrances with modern boarded doors. To the left, there is a small original oak pegged window with offset mullions, although one mullion is missing. Additionally, there is another window located in the apex of the north gable. The south gable is set into the slope, with a track running behind it. This gable includes an original upper loading bay, which has a pegged, stopped-chamfered doorcase and a boarded door, accessed by boulder steps. There is also a long catslide-roofed extension on the west side.

Attached to the west side of the stable block is a rubble revetment wall, likely built at the same time as the stable. This wall curves in a shallow arc to define the forecourt of the house, which is partly cobbled and was overgrown at the time of the survey. The wall meets the house on the left and has a maximum height of 2.5 meters on the side facing the house.

Inside, the stable features a partly brick-paved floor and a rubble partition wall at the center. The main beams are stopped-chamfered, with plain joists in both sections, supported by rough wall corbels. Above, there is a hayloft with a three-bay collar and tie-beam roof, which includes raised cruck trusses.