Trewithey Farmhouse

Trewithey Farmhouse is a farmhouse, probably dating to the late 16th or early 17th century, and possibly with earlier origins. It is constructed of rendered stone rubble with a slate roof featuring gable ends and a lower range with a hipped end. Brick axial and end stacks are present. The original room arrangement is uncertain, with the house built down a slope. A portion of the house on the left-hand side was demolished in the early to mid 20th century, leaving a 3-room plan: the left-hand and central rooms share an axial stack, and the right-hand room has its own end stack. A 17th-century 2-storey porch provides direct access into the left-hand room, an unusual arrangement as there's no indication of a cross or through passage, nor a back doorway. A blocked fireplace, positioned close to the entrance, suggests a large fireplace opening. The plan shares similarities with Stonaford House. In the 19th century, a second entrance was added to the lower side of the central room, and 19th-century partitions and a staircase were inserted within. It is uncertain if the lower room on the right is a later addition.

The exterior has an asymmetrical 1:1:2 window front. The gabled 2-storey porch on the left features a chamfered segmental granite arch with ball and pyramid stops, leading to a 17th-century studded door. A granite 2-light mullion window is on the first floor. To the right, two late 19th or 20th-century 1-light windows flank a 19th-century stone rubble porch with a slate lean-to roof and a 19th-century door. The first floor has two late 19th or 20th-century 2-light windows flanking a one-light window. The roof level drops at the cross wall between the central and right-hand rooms. The left-hand gable end is clad with corrugated asbestos sheets.

Inside, the inner entrance has a square-headed chamfered granite frame with eroded stops. The porch ceiling beams have been removed, with a stair inserted on the left-hand side providing access to the room above the left-hand room. The left-hand room has heavy wany chamfered ceiling beams, some with straight cut stops; the fireplace is partly blocked with a Rayburn stove. The central room retains heavy wany chamfered ceiling beams and remains of a chamfered fireplace surround. The lower room on the right has a plastered ceiling and a 20th-century grate. The roof structure above the porch, the left-hand room, and the central room was replaced in the late 19th or 20th century, and the earlier structure is no longer visible; the eaves have been raised. The roof structure above the lower room on the right was inaccessible. The property historically belonged to the Issacke and Vincent families.