Lower Bonehill Farmhouse

Lower Bonehill Farmhouse is a house that was formerly a longhouse, dating from the 16th century, with additions made at the rear. It is built from granite rubble, featuring some large blocks at the corners and base of the walls, and has a slated roof. A large granite ashlar chimneystack, which heated the former hall, is located at the center of the ridge and has thatch weatherings with an unusual tapered cap that projects slightly beyond the stack's face. There is also a small plain stone stack on the left-hand gable.

The original layout was a 3-room and through-passage plan, with the former shippon located to the right of the passage; the hall and inner room have now been combined into one. The building has two storeys, while the lean-to additions at the rear are single-storeyed. The front has four windows, all of which have 20th-century small-paned wood casements. There is an open-fronted stone entrance porch with a gabled roof and a 20th-century plank door.

To the left of the porch, the wall has been slightly extended, likely in the late 17th or early 18th century. The left-hand ground-storey window features a flat arch with tall, roughly cut voussoirs. To the right of the porch, there is a blocked doorway with a 20th-century window cut into it, which likely provided separate access to the shippon; a matching blocked doorway is found in the rear wall. Two large 20th-century windows have been cut into the lower (west) gable wall. Additionally, there is a small blocked window, larger than the usual ventilation slit, in the rear wall of the shippon.

The interior has been mostly gutted, except for the hall stack. This stack has a granite ashlar back to the passage, featuring a chamfered plinth and a hollow-moulded cornice. The large rectangular fireplace opening has monolithic, hollow-moulded granite jambs and a lintel, along with an oven that has a stone-framed opening and a shallow shelf in front. The old interior is documented in E Mercer’s "English Vernacular Houses," published in 1975. Adjacent to the farmhouse are five farm buildings, which form an important group and are separately listed.