Trewavas Farmhouse, Adjoining Outbuildings, Front Garden Walls And Mounting Block

A farmhouse, dating to the 16th or early 17th century, was remodelled and extended in the 19th century. The farmhouse is constructed of painted rubble walls with granite dressings, and has a scantle slate roof, which slopes lower at the rear due to a later outshut. Brick chimneys are located over the gable ends of the house, and there are stone corbels under the eaves. The original plan likely comprised a kitchen or service room to the left and a hall on the right, heated by a front lateral stack. Following a fire around 1830, the farmhouse was remodelled to include a kitchen on the left, an unheated service room to the right of an entrance hall, and a parlour on the right. An outbuilding was added to the left, and an outshut was added to the rear, providing additional service rooms, all likely in the 19th century.

The south front has an irregular façade with four windows. The original doorway is located to the left of the middle window and features a chamfered arch with pyramid stops. The doorway has an old four-panel door with glazed vertical upper panels. A 17th-century chamfered window opening above the doorway retains the stooling for a central mullion, now fitted with an early 19th-century eight-pane horizontally sliding casement. A pair of similar 12-pane windows are in the wide parlour window opening, which retains its original chamfered sill. A further 12-pane window is in an 18th-century enlarged square opening. Other windows are circa mid-19th century, hornless sash windows in 18th or 19th-century remodelled openings. A window over a small window to the right of the doorway is blocked.

The interior has remained largely unchanged since the 19th century, retaining carpentry and joinery details from that period, including the roof structure. A roughly-hewn round-headed granite arch in the front wall of the middle room represents a remodelling of an original lateral chamfered fireplace.

The front garden contains a single-storey farm building to the left, a rubble coped rubble wall to the right, and a granite coped rubble wall parallel to the front of the house. A gateway leading to a granite-flagged path has an old wrought-iron gate with scrolled decoration. A mounting block with three steps rises from the right-hand side of the gateway. A newspaper from 1879 references a fire at Trevavas approximately fifty years earlier.