Higher Tresmorn

Higher Tresmorn is a house with an early 16th century to early 17th century core, featuring late 17th century alterations and a 20th century addition at the rear. The building is constructed from whitewashed, rendered slatestone rubble and has a rag slate roof, with the left gable end unrendered. The right gable end has a whitewashed brick chimney, while the left gable end features a brick chimney. There is evidence of a 2-bay open hall plan, with chambering likely to the left and probably to the right. The right gable end stack is probably a later 17th century addition. The range has been extended at the right gable end under a lower roof into the north end of an outbuilding adjoining at the right gable end to the southeast; the north part of this outbuilding is now incorporated into the house, which includes an internal lateral stack and a tall chimney.

The 2-storey, 3-window south front has an off-centre gabled, enclosed porch with a slate roof. The inner doorway is round-headed and chamfered, made of granite. The windows have been renewed with casements, and the length of the slate sills suggests that the openings have been altered. The extension at the right gable end features a first-floor 4-pane bulls-eye opening. Inside, the upstairs rooms have chamfered principals with curved feet, and the chamfers continue on cambered collars in the roof space, where smoke-blackening is visible on two trusses. There is also a whitewashed cob outbuilding with a slate roof that is hipped at the south gable end, which has a 20th century lean-to under a galvanized iron roof. The granite coping built into the left-hand gable end and the high quality of the roof suggest that the present building was part of a larger complex.