Farm building associated with Nant-y-mynach

Combined farm-building of unusual form. Built of irregularly coursed rubble with flush joints, and a roof of old thick slates, without guttering. Blue ridge tiles. Six bays. The building is uphill sited and against the road for direct access. At the lower end, the original barn of 3 bays with high double timber doors to the central bay set back below an oak lintel. Two tiers of slit vents in the two outer bays, and five vents in the S gable end. Open bay to the north was originally a through cartway to the field at the rear, but now walled up at the rear. The upper wall of this bay is built of stone to half height. Cart shed and stable beyond this bay with low double door to the road front, and a rectangular pitching opening above. The N end bay has a boarded door to the ground floor with a small square window at the side, the frame missing, and a similar square pitching opening above. Both bays 5 and 6 have 4 high level slit vents to the rear. Opening to the loft at the N gable end.

The upper end has a truss consisting of a cambered tie beam with raking struts to the principal rafters, carrying a single tier of purlins.