Agricultural Range to the W of Plas-yn-Llan

This building is a large agricultural range constructed from limestone rubble and topped with a slate roof, featuring corrugated iron on most of the rear pitch. The central section serves as a barn, showing signs of later enlargement with two masonry breaks. On the left side, there is a large cart bay with an exposed timber lintel and two open lights above, each having a segmental head made of rough-dressed limestone voussoirs. To the right, an entrance with a similar head leads to a large open window that was previously an entrance. Next is a stable entrance with a boarded door and a large window to its right, along with two unglazed openings under the eaves above. Following this is another stable door, accompanied by a tall barn entrance to its right, which has a boarded stable door and a boarded loading bay above, framed in pegged timber. To the right of this is an additional open entrance, flanked by horizontal lights, with a square boarded window above it under the eaves. Attached to the right, slightly lower than the main block and with a shallower roof pitch, is a two-bay storeyed addition featuring two open entrances, the left one having a segmental arch. Above the left entrance, there is an unglazed opening under the eaves. The left gable end has an upper entrance, with partially surviving stone external steps. The rear of the building is built into the hillside and includes three unevenly spaced entrances, along with ventilation slits and a window opening at the far right.

The barn section consists of three bays with opposing barn doors and features 19th-century tie-beam and raking strut trusses.