Trebyan House

Trebyan House is a farmhouse, now a house, likely dating from the 18th century, with significant alterations and extensions circa the mid-19th century, probably for an agent of the Lanhydrock estate. 20th-century alterations have also occurred. The house is constructed of slatestone rubble, with the front rendered and lined out, and the left side slate-hung. The slate roof has a lead roll to the ridge and gable ends, with a rendered stack at the right front gable.

The original plan appears to have been a single-depth range with a central entrance and rooms to either side. In the 19th century, a wing was added to the rear left, with rooms overlooking the garden, and a return range was constructed along the rear, creating a service yard containing former stables and outhouses, now incorporated into the house.

The two-storey, asymmetrical front has a three-window facade. A flat-roofed porch with pilasters and cornice provides access via outer double doors with margin glazing and an inner four-panelled door. Large 16-pane sashes are positioned on either side of the porch at ground floor. First-floor windows are also 16-pane sashes with scalloped blind boxes. A 20th-century window is at ground floor level in the right gable end. The left side features a two-storey canted bay with a hipped roof. Further 16-pane sashes with scalloped blind boxes, as well as a 12-pane sash, are present at ground and first floor levels. A 12-pane sash and a 12-pane French window with a scalloped valance are also visible. The rear has a mix of 30-pane and 16-pane sashes at ground and first floor levels. A straight joint marks the former stable at the left end, featuring a ground-floor door and a 16-pane sash above. The stable in the service yard has an upper level clad in asbestos slate, supported by two cast iron piers, and irregular fenestration with casements and sashes.

The interior of the property was not inspected.