Bank-Barn at Tan-y-lan

The Bank-Barn at Tan-y-lan is a substantial 5-bay barn constructed of rubble masonry and topped with a slate roof, featuring a cow house at the lower northern end. Inside, there is a central threshing floor. The eastern entrance is nearly full height and has a timber lintel, although the doors are no longer present. To the left of this entrance are three ventilation slits, with the central one positioned higher. On the right, there is a high-level ventilation slit in the center, and due to the sharp slope of the ground to the north, a basement is present. This basement has an entrance under a timber lintel and a relieving arch made of voussoirs, along with a very small wood-framed opening to its right.

Attached to the southern end of the barn is a slightly taller stable range, also built of rubble masonry but with a corrugated iron roof. This stable features a square-headed doorway on the right and a 4-pane window on the left, both with timber lintels.

On the western side, there is a slightly lower passage entrance under a stone relieving arch, which contains wood-planked double doors. To the right of this entrance are three ventilation slits that match those on the front of the barn. An open shelter with a corrugated iron lean-to roof is located to the left (north) of the rear doors, and there is a planked hatch leading into the barn.

The barn has a paved flagstone cart passage and simple tie-beam trusses, although some timbers have been replaced. The loft, situated north of the passage, is approximately 1 meter higher and may have been lowered; it features a planked floor supported by timber posts, with some planking along the sides. Stone steps lead down to the basement, and along the southern side of the cow house, there is a stone-built manger with a timber sill and vertical posts.