Farm-buildings at Groes Las

The farm-buildings at Groes Las consist of a cluster of structures arranged in two linked ranges that are positioned at right angles to each other, built against a slope to take advantage of the changing ground level. The buildings are aligned approximately north-south, with the earliest structure likely having been a cowhouse. At right angles to this cowhouse, and stepped up the slope, are two additional buildings, which are connected by a small later shed.

The cowhouse features mortared boulder construction and has a random slate roof with close eaves. It includes a doorway towards the center, a very small window to its left, and another doorway on the right. Built against rising ground, there is also a high-set window in the rear wall, along with a loft entry or pitching door in the right-hand (south) gable end. The small shed that links the cowhouse to the other range appears to be the most recently constructed part of the group, featuring a single doorway at the front and a damaged opening in the rear wall.

The east-west range consists of two buildings that are also stepped up the slope. The earlier of these buildings is located at the west end and is constructed from rough quarry-dressed mortared stone with a random slate roof and roughly dressed slate copings. This simple shed or barn has opposed doorways at the lower end and a pitching door in the upper gable, which is now accessed from the upper building, with no other openings present. A straight joint indicates where a barn was later added against and partly over this building; this barn is made from a mix of mortared rubble and rough-dressed stone, featuring a random slate roof with roughly dressed stone copings. It has two vent slits in the rear (south-facing) wall and a wide doorway on the left side of the north wall, along with a pitching door in the upper gable, supported by a timber lintel.

Inside the cowhouse, the walls and internal timberwork are limewashed, which is consistent with its use as a cowhouse. It features two pegged tie-beam trusses, which are partly embedded in the walls and roughly worked, with one truss having a pegged collar. Additionally, there is a tie-beam against the right-hand gable that has slots suggesting the earlier existence of a loft floor. In the east-west range, the lower building has a sawn and bolted tie-beam and collar truss, with large cobbles on the floor. The barn also has a bolted collar truss.