Trevoyan Farmhouse

Trevoyan Farmhouse is a house of complicated building history, originating in the late 16th century or earlier, with significant extensions and alterations spanning the 17th, 18th and 19th centuries. The building is constructed of stone rubble with a slate roof featuring gable ends and a hipped end to the front wing. It has end and axial stacks, including a stone rubble stack of circa 17th-century date to the earlier rear wing and later brick shafts.

The plan is complex, reflecting multiple phases of construction and extension. The remains of the original house appear to be a 2-room plan building to the rear left, forming an overall L-shaped arrangement. The left-hand room was heated by an end stack, while the cross wing to the right may have been either unheated or heated by an end stack in the projecting gable to the front right. The original entrance has probably been altered; the front and back doors do not oppose one another, and the main entrance is now incorporated into the later main house.

The main range, probably of late 17th-century date, follows a 3-room and cross passage plan with an entrance to the right of centre and a higher end on the left. The inner room to the far left was built directly in front of the cross wing of the earlier range. The central room is small and was probably unheated, with an axial stack in the higher cross wall being a later insertion. The right-hand room has a bolection moulded doorframe of circa late 17th-century date, and several 18th-century doors survive. In the early to mid 18th century, a stair was added in a projection to the rear of the passage. In the early 19th century, a 1-room wing was added to the front of the inner room on the left and an outshut was added to the rear of the lower end on the right. A further outshut extension was added to the rear of the central room in circa mid 19th century.

Externally, the building is 2 storeys with a regular 1:3 window front and projecting front wing to the left. The main range to the right has a 19th-century stone rubble porch flanked by two replacement 20th-century 12-pane sashes with 3 panes above. The wing to the front left has a 19th-century 12-pane sash on ground and first floors. The lower earlier range, set back to the left, has a 20th-century window on the ground floor and a plank door to the right, with several small blocked openings visible in this range.

Inside, the cross passage has a bolection moulded doorframe and 18th-century doors into the right-hand room and central room; the latter has cusped H-hinges. The floor joists to the central and right-hand rooms are roughly cut with high ceilings. The ceiling to the inner room on the left is at a lower level with more massive, though still roughly cut, floor joists. A partition was inserted dividing the inner room. An 18th-century dog-leg stair in the rear projection of the passage features a deep moulded rail and turned balusters. The first floor and roof structure of the main range are not accessible. In the earlier range, the floor joists are fairly massive, waney and chamfered, some with runout stops. The massive fireplace in the left-hand end wall contains a cloam oven, though the lintel has been replaced. The roof structure above the left-hand room is very rough and probably dates to the 18th or 19th century. The roof structure above the cross wing was not inspected.