Lan Farmhouse and attached cowshed

Lan Farmhouse is a 1½ storey, two-unit building with an attached cowshed at the lower end. It features gable end chimneys and is constructed of whitewashed rubble stone with a tin roof over thatch. The central entrance has an offset door with a four-panel design, flanked by a central four-pane sash window and a taller casement window to the right, which is set higher. To the left, there is a blocked door with a projecting hood, indicating the original entrance. The right gable is raised and includes a nine-light sash window on the ground floor, offset to the right, with an off-centre casement window above. At the rear, there is a roofless lean-to. The attached cowshed has three doors on the ground floor and a central upper pitching door, all featuring plain boarded doors, and the gable is raised.

Inside, the central entrance leads to a timber stair that divides the space into a kitchen on the left and a smaller parlour on the right. Originally, there was an entrance directly onto the fireplace, with a connecting doorway to the cowhouse, both of which are now blocked. The blocking does not extend the full depth and includes inbuilt shelves. The kitchen has a large fireplace with a range and brackets for a drying rack, with a gable stair to the right of the fireplace that has been partially infilled and converted into a cupboard. A doorway has been inserted through the rear wall to the lean-to. The parlour features a cast iron fireplace and a recessed cupboard in the gable wall.

The upper floor is divided into two rooms by a rough partition along the line of the right-hand roof truss. The larger bedroom above the kitchen has a substantial stepped chimney stack, while the smaller room above the parlour includes a small fireplace. The rough trusses are crudely worked with pegged joints, mid-level collars, and squared purlins. The thatch is visible on closely spaced wide riven rafters, with a woven substructure, likely made of hazel, and possibly a gorse under-thatch between the ridge and upper purlin.

The lean-to is in a derelict state but retains slate slab benches and evidence of stone slate roofing.