Trevillick Farmhouse

Trevillick Farmhouse is a farmhouse dating from around the mid-18th century, with some alterations and additions made in the early to mid-19th century and a few later changes. The building is constructed of slatestone rubble, with the front rendered. It has a bitumenised slate roof featuring ridge tiles and gable ends, along with gable end stacks that have brick shafts.

The farmhouse has a two-room plan, with a larger room on the right, likely the parlour, and a smaller room on the left, probably the kitchen. The entrance is located off-centre to the left, leading into a wide passage. Each room is heated by a gable end stack. At the rear left, there is an unheated outshut with a one-room plan that contains a dairy and a second staircase. To the rear right, there is a late 19th-century kitchen wing, also with a one-room plan.

The exterior features two storeys and an asymmetrical three-window front, with all windows being 19th-century sashes. The ground floor includes a 19th-century six-panelled door, with the top panels glazed. To the left of the door is a 12-pane sash with sidelights and a 16-pane sash; to the right is another 12-pane sash with sidelights. On the first floor, there are a 20-pane sash, a 12-pane sash, and a 16-pane sash. At the right end, there is a 19th-century two-light four-pane casement window on the first floor. Set back to the right is a later 19th-century two-storey rear wing, which has a 19th-century four-pane sash on the ground floor and a 20-pane sash on the first floor, with a blind gable end. The outshut on the left end has two-light four-pane casements on both the ground and first floors. At the rear, there are two two-light four-pane casements in the outshut. A 20th-century porch with a pitched roof and a four-pane sash above lights the stair.

Inside, the room on the front left has a 18th-century two-panelled door and 18th-century moulded ceiling beams. The wide central passage is slate-paved, with a straight staircase inserted on the right side, which divides to the right and left at the first floor. The room on the right features a ceiling with a 19th-century chimneypiece. The rest of the house has not been inspected.