Barn at Llwyn-y-saint

The barn at Llwyn-y-saint is a Grade II listed building made of stone rubble on boulder footings, located downhill to the northwest of the farmhouse. It features a slate roof and is divided into two compartments, comprising four bays defined by sharply elbowed cruck trusses. An animal house, likely a later addition, extends uphill from the barn.

A narrow but tall doorway with a wooden frame and timber lintel opens into the third bay from the downhill end, with a small ventilation door opposite. There is also a small slit vent and an additional door leading to the uphill stable.

The lowest cruck truss is sharply angled with a low-set tie beam, and the feet of the blades are raised in the wall stonework. The center truss is similar, featuring a lapped and pegged high-set collar, with the apex of the blades butting vertically and trenched for two tiers of purlins. These purlins were replaced higher up when the side walls were raised, and an additional timber was laid on the back of the crucks. The feet of the blades rest on corbelled stones above the floor, at the level of a low dividing wall with a timber sill. The upper couple is also similar, seated on corbelled stones at 1.4 meters above the floor. The total span of the trusses is 4.62 meters, and the roof slates are torched.

The stable at the upper end accommodates stalling for four animals and has a loft above. At the lower end, two open-fronted stores are attached. The upper bay of the barn contains a transverse shaft with two wooden pulley wheels for belt drives, powered by an external iron wheel made by Edwards of Llanuwchllyn. This shaft was driven by a system of belts and pulleys extending approximately 200-250 meters across the fields from an iron overshot waterwheel located in the bed of the Nant Owen. Power was also supplied to the farmhouse.