Gwern-y-braichdwr

Gwern-y-braichdwr is a one-and-a-half storey vernacular gentry house with origins in cruck framing, dating back to the 17th century. It features a three-unit lobby entry plan, with the main range having a storeyed porch at the front and a parlour wing at the rear. The building is constructed of whitened rubble with boulder foundations and has a slate roof topped with a large central chimney that has weather-coursing and capping, along with an additional end chimney for the rear parlour wing.

The windows throughout the house are modern casements with timber lintels, and the doors have been replaced with modern versions. The large storeyed and gabled porch is positioned off-centre to the right, with an entrance at the front and a window above. To the left of the porch are two windows, one of which has an inscribed lintel reading 'J LL (?) 1611'. There is also a large gabled dormer with a modern window on the upper floor. To the right of the porch is a modern entrance that was formerly a window. Both floors of the right gable feature single windows. The rear of the house includes a central gabled parlour wing with a gabled dormer on its left return and a window below. Flanking the parlour projection are two additional windows, and the west gable has a first-floor window.

Inside, the lobby-entry plan incorporates a fine original wooden newel stair located within the porch to the left. The hall section on the left has stopped-chamfered ceiling beams and a flat, stopped-chamfered bressummer above a large fireplace. There is a post-and-panel partition at the service end on the left, with a blocked original segmentally-arched entrance to the right and an open left section. A similar partition separates the hall from the rear parlour, which contains a left-hand door and a doorway that has been relocated in recent years from the former screen. The end room, currently used as a kitchen, has a beamed ceiling beyond the chimney. On the first floor, four pairs of cruck blades are visible, along with two early 17th-century double ogee doorheads leading to pegged doorways, featuring old boarded doors.