Bryntirion

Built of coursed rubble, with slate roofs. Mostly of 2 storeys and attic, the main front is of 4 window bays, continuing to the N as a lower structure formerly for service accomodation, without attic. A rubble screen wall divides off Bryntirion Bach. The main front, facing E, is of 2 builds, the more northerly relating to the early C19 remodelling in a slightly different stone. Twelve-paned sash windows, and a portico, off-centre, with panelled surround and porch with Ionic columns (replaced), and half-glazed doors. The attic floor has four gabled dormer windows with 12-pane sashes in the very tall hipped roof. The S front is rendered and lined, and has 2-pane C19 sash windows either side of a projecting, canted 4-storey central bay, also with 4-pane sash windows, and unusually, gabled dormers with similar windows on all 3 faces. Similar gabled dormers light the attic of each side bay. At the downhill end (S) is a rustic archway of largely drystone construction. Two tall chimney stacks with multiple flues.

The main rooms lead off a long entrance hall with segmental arches, deeply moulded cornice and architraves to the 6-panelled doors. Panelled shutters to the windows. An early C18 dog-leg stair with a shaped handrail and turned balusters lies off the corridor. One room has a Dinorwic slate chimneypiece. The house is said to retain a strongroom for the estate deeds. Stone flagged and brick vaulted cellar.