Cwm Biga

Cwm Biga is a two-unit, two-storey farmhouse, likely dating from the 18th century, with a double-pile plan. It is constructed of white-washed random stone with a slate roof, featuring slate-hung end stacks - one of stone on the left and one of brick on the right. The front of the house faces south and the entrance is offset to the left of centre, sheltered by a gabled porch, added in the later 19th century. The porch has brick quoins, a slate roof, and plain barge boards, with a plain wooden door to the return side and a small four-pane window to the front, both framed by segmental brick heads and brick reveals. To the right of the porch is a twelve-pane horned sash window with a cambered brick head and reveals, and a two-light wooden casement to the left, also with a segmental brick head. A similar casement is aligned above, under the eaves and with brick reveals. Further to the right is a three-light wooden casement, followed by a small 20th-century top-hung window, both with brick reveals. A stone lean-to adjoins the west gable end, containing a bakehouse to the front and a wash-room to the rear. Part of the lean-to's side wall has been rebuilt using breeze blocks, while other sections are slate-hung. The bakehouse has a boarded door to the front. There are no openings to the east gable end.

The rear of the house has a doorway to the left of centre, framed by a segmental brick head containing split doors. This doorway replaces an earlier one, which has been blocked and now contains a late 20th-century top-hung window. Flanking the current doorway is a small two-light wooden casement under a flat head to the left, and a renewed two-light small-pane wooden casement under a segmental brick head to the right. Two similar casements are positioned above, directly under the eaves. A wash-house, located within the west lean-to, has a boarded door under a segmental brick head.

Direct entry leads into the front kitchen, which features a spine beam with a narrow chamfer and plain joists. An original large fireplace, mainly brick-lined with a plain timber lintel, is situated on the east wall, alongside a boarded door that accesses a winding timber stair. Further boarded doors lead to the left into a parlour and straight ahead to service rooms. The parlour contains a Victorian cast iron fireplace with tile inserts. The ceiling in the parlour is obscured but is said to retain its joists and has recently been divided by a partition to create a bathroom on the south side. To the rear of the house are two narrow rooms: a back kitchen to the east and a dairy to the west. These rooms also have ceilings with plain joists, and the back kitchen has a trapdoor, possibly for coffins. The first floor contains four bedrooms with canted and plastered ceilings, and fireplaces in the end walls, now covered over.

The wash-house in the lean-to features a pitched floor and a large wash tub to the rear. The bake-house also has an oven to the rear, with flues leading into the left-hand stack.