Penkivel Farmhouse At Os Ref 867 410

This is a manor house dating from the 16th and 17th centuries. It is constructed of slatestone rubble with granite dressings, and has roofs covered in Delabole and asbestos slate. The original layout was a three-room plan with a through passage, incorporating a two-storey porch, and has since developed into a main range with a central porch facing northeast. To the left of the porch is a projecting two-storey wing dating from around the 17th century, and another two-storey wing, also from around the 17th century, creating a T-shaped plan.

The irregular, two-storey northeast front features a late 16th/early 17th century four-centred granite arched doorway, adorned with leaf carvings in the spandrels and labels with stops and carved 'C's. A C20 glazed door has been inserted. Above the doorway is a 17th century three-light granite mullioned window, alongside C20 small pane glazing. One wing has a blind gable end. Between the wing and porch, a blocked doorway is flanked by a two-light casement in a narrow opening. Old two-light timber casements with 15 panes are positioned above each of these openings. To the right of a lateral stack is a King mullion four-light granite window with a hood mould and labels. Timber casements with 10 panes of glazing are also present. A matching window to the right of the lateral stack is blocked, with rebuilding of the walling above following the removal of earlier windows. The northwest gable end has a smaller matching four-light granite mullioned window with a King mullion, labels and a larger matching pattern window below. A dressed and moulded stone stack sits atop the gable apex. The rear of the main range is also irregular, incorporating two stone raking buttresses of unknown date. A C20 glazed door sits under a slate pent roof over the cross-passage doorway, with old two-light timber casements under timber lintels to the right and above - one with 8 panes per light, the other with 15. Some openings are blocked. A wing to the rear left has a lower roof with a massive external stone stack on the gable. A single-storey addition is also present. The southeast elevation has an off-centre brick chimney shaft rising from a gabled projection, and irregularly arranged two-light windows on each floor.

The interior displays alterations, but the original plan and later development remain evident. The original kitchen fireplace, with a timber lintel and stone jambs, survives. A dog-leg staircase, inserted into the service room, dates from the mid-18th century and features turned balusters and a closed string. The roof structure has been replaced. The house is unusually complete for a Cornish house of its date and remains in good standing.