Trevathan Farmhouse

Trevathan Farmhouse is a farmhouse dating from around the late 16th or early 17th century, with extensions added in the early 19th century and a remodelling of an earlier range occurring around the 1960s. The original part of the house is constructed from stone rubble with a slate roof, featuring gable ends and a projecting stone rubble stack on the lower, left-hand gable end. There's also an axial hall stack made of stone rubble and brick, positioned asymmetrically in the gable end. One interior room was partially rebuilt with a lower roofline.

A front range was added in the early 19th century, built of roughly dressed stone with dressed quoins and cambered arches to the openings, each topped with keystones. The slate roof has half-hipped ends and brick end stacks. The plan of the house has been significantly altered over time. The older range seems to have originally been a three-room plan with a cross or through passage. The lower end was heated by the gable end stack, and the hall by the axial stack located at the higher end of the hall. This stack may have initially served a former higher end room, which was rebuilt in the early 19th century.

The early 19th-century range was added to the front of the hall and inner room, comprising a central passage flanked by two reception rooms. A staircase is situated behind the passage, flanked by a corridor which leads into the earlier range. The building is two stories high and raised on a basement. The front of the 19th-century range has a symmetrical three-window facade featuring dressed stone cambered arches with keystones. The central entrance has six stone steps with wrought iron railings leading to a round-arched opening with a keystone. There are a 16-pane hornless sash windows to the left and a 20-pane sash window to the right on the ground floor. The first floor has three 16-pane hornless sashes. The rear of the older range has altered openings with 20th-century fenestration.

The interior of the front 19th-century range is largely original, with decorated plaster cornices. One room on the right has a delicate floral trail of roses. Other features include 19th-century chimney pieces, an open-well staircase with a ramped rail, stick balusters, and square newels. Segmental arches are present on the landing above, featuring incised pilasters. The basement dairy floor is made of slate slabs. The earlier range contains a large hall fireplace with a heavy, deeply chamfered granite lintel with straight-cut stops and chamfered granite jambs with pyramid stops, and a spit is still in situ. There are roughly cut ceiling beams. The roof timbers have been replaced; the owner states the original collars had dovetailed notched lapped joints. A 17th-century cupboard was removed from the left-hand side of the fireplace on the lower gable end. This fireplace also had 17th-century decorated firebricks, now located in one of the outbuildings. A three-light Catacleuse stone window has been relocated to the piggery, south of the farmhouse. A window, originally lighting a hall, has been reduced to two lights with pointed chamfered heads and jambs. The farmhouse is illustrated in the notes of The History of Port Isaac and Port Quin, by Dr Frederick Trevan, dating from 1833-34.