Brynllywarch Hall School

The 1829 house is in an Italianate style, with white painted and pebble-dashed brick walls, and shallow pitched slate roof with wide bracketed eaves. Triple round-headed windows of this building survive at the rear, and at the canted end of the rear wing. The 1887 extension at the front is of 3 storeys, yellow brick with limestone dressings, and slated roofs. This comprises a rectangular block, 3-bays x 2, with narrower 3-storey protruding bay the front having a semi-circular bay of two storeys carrying an open belvedere with a swept lead roof and crown carried on rustic cast iron stanchions. The NW corner is enclosed in a raised and glazed verandah carried on similar Beaux-Arts style ironwork with elaborate brackets covering the main double oak entrance doors. Four-pane sash windows. To the W, a 1½-storey service wing with a heavy bracketed gable, and a canted bay added c.1930. Arch-linked stack. To the rear a narrow service yard.

Lobby and entrance hall have ribbed plastered ceilings, oak carved dados, the lobby divided from the large hall by a carved and glazed oak screen. Open stair well to the rear of the hall, with a wide 2-flight stair having a fretted balustrade, initialled DT, and exhibiting in the well the N for Naylor. The earlier, rear section has a columned gallery at the head of the separate dog-leg stair. Painted marble fireplace in the staff room with tiled and cast iron 'convolvulus' surround.