Trewenna House

Trewenna House is an early 19th-century vicarage, now a private house, located in Gwenna Churchtown. It was constructed in two phases. The house is built of freestone ashlar, with freestone consoles and hoods. A granite plinth and quoins are visible, although the southern elevation is rendered. The roofs are hipped, featuring double-span asbestos slate with a hidden valley to the south, and a double-span dry Delabole slate roof with a hidden valley or leaded flat and wide eaves to the north. The chimneys are two-stage rendered constructions with moulded stone cornices.

Originally, the house comprised a two-room plan with a central stair, and it has been extended by a parallel wing to the rear (east) and a larger two-room garden front to the left (north), forming a T-shaped block. The west front has an earlier, originally symmetrical three-window section with lower eaves, and a projecting one-window side wall of the later construction. The earlier section has granite sills and original hornless 12-pane sashes. A freestone ashlar porch, built in the same style as the garden front, stands before a doorway originally central, featuring a cambered arch and a pair of top-glazed panelled doors with a paired overlight. Interior window shutters are present. A tripartite bay window with a granite plinth, mullions, and cornice is located on the side of the garden front, left, with blind sides and a freestone balustrade above. Other windows on this front are hornless sashes with glazing bars. The symmetrical four-window north garden front, overlooking the church, has a granite plinth. Ground-floor windows are tall, 12-pane hornless sashes within shallow arched openings surmounted by hoods on moulded consoles. First-floor windows are square with 6-pane hornless sashes and shallow arches above.

The interior contains high-quality features from both building phases. The earlier two-room section retains original doors, architraves, window shutters, and some moulded ceiling cornices. Remodelling from the second phase includes pilasters with consoles flanking windows and a Doric distyle-in-antis surround to the doorway between rooms. Further remodelling from the second phase created a fine stair hall, with a continuing open-well stick baluster stair extending from the first landing to a higher floor level in the later two-room north wing. Ground-floor rooms in this later wing are largely complete, featuring pilasters with consoles flanking shuttered windows and moulded plaster ceiling cornices, including particularly fine plaited detail in the west room. A fireplace with a painted panel to the frieze is located on the back (south) wall of one room. The house is an interesting example of two phases of construction, with the second phase resulting in a more grand wing.