Trethevy Farmhouse

Trethevy Farmhouse is a circa late 18th-century farmhouse with extensions dating from the circa late 19th century. It is constructed of plastered stone rubble, with some areas slate-hung on the south side. The roof is hipped, covered in rag slate with a clay ridge tile, and features side stacks with rendered shafts, slate cowls, and clay pots. The house has a double-depth plan and is arranged symmetrically over two storeys with a three-window east front. It features circa early to mid-19th-century sash windows with 16 panes on the ground floor and 12 panes on the first floor. The central doorway is sheltered by a circa 19th-century rendered porch with a coped gable and a 4-centred arch doorway containing a panelled door. The right-hand (north) side is largely blank except for a 12-pane sash window on the right. The left-hand (south) side is partly slate-hung and includes a 20th-century porch leading to a side doorway. The rear elevation includes 16-pane sash windows, a central plank door, and a circa late 19th-century stone rubble wing on the right.

The interior features 18th-century two-panel doors and a wide, central staircase rising from the front lobby between the two front rooms. The left-hand ground floor room has a circa late 19th-century slate chimneypiece with an iron grate and panelled internal window shutters. The front right-hand room was not inspected. The kitchen has thin chamfered cross-beams, a large dressed granite fireplace, and an old dresser. The remainder of the house and the first floor were not inspected.