Barn and attached byre at Nant y Felin Uchaf

Large barn of stone rubble with some dressed stone dressings and mostly Welsh slate roof: attached at right angles is the cowbyre range on two levels partly of snecked stone and with corrugated roof. Barn has 6 bays with opposing double doors, those to front in a large gabled porch with oculus above; 4 rows of ventilation slits to gable end. Lean-tos attached to front either side of porch. Attached to right is 2 unit cowbyre range entered from farmyard front and from rear at different levels; ventilation slits to gable end; to rear smaller ventilators to upper unit and sash windows and door to lower. The range stands at the lower end of the farmyard, itself creating a small yard; the farmhouse is higher up and opposite is a range with brick dressings extending to cart bays at lower level.

Barn has pegged trusses of tie beam with collar. Cowbyre has A frame roof with mangers in place in lower unit.