Bryneithyn Hall

Bryneithyn Hall is a late Georgian style country house of a T-plan layout, with a later extension. The main house, dated 1854, is two storeys high and built with painted roughcast walls, topped by a shallow-hipped roof covered in 20th-century concrete tiles. The roof has wide, boarded eaves and low rendered ridge stacks. The front garden elevation has a 1-3-1 bay arrangement, with a prominent, full-height canted projection in the centre. This central projection has slightly narrower windows on its sides. The ground floor windows are pointed arched, while those on the upper floor are square headed, all with glazing from the early 20th century using small panes. An iron veranda, supported by ten cast iron columns with boarded ceilings and a metal balcony rail featuring a simple pattern of diagonal crosses in rectangles, wraps around the front garden and the ends of the building.

The north and south ends of the main house feature matching windows on each floor. A 20th-century full-height extension has been added to the left side of the south end. Set back to the right is an early 19th-century house, now incorporated as a rear wing. This wing has a two-window north front with 12-pane sashes on the ground floor and smaller, square 9-pane sashes above, all with painted sills. The west end of this wing features a ground floor casement-pair window with side margins, and an entrance within a roughcast, five-sided porch, resembling that at Ty'n-y-Lon, Llanfarian. The porch has a slate roof with eaves brackets and contains a 20th-century half-glazed door beneath an original overlight with Gothic interlacing glazing bars.

To the right of the rear wing is a range that connects to a farmhouse. The angled wall between these structures creates an unusual hipped roof arrangement with a single 20th-century window. The farmhouse itself is built of rubble stone with stone stacks and a roughcast stack to a service range. It is two storeys high and has undergone alterations to most of its openings.

The interior of the main house has been altered, but retains late Georgian to early Victorian details, including six-panel doors and panelled shutters. The west porch leads into a corridor adjacent to a sitting room, which contains an open-well staircase. This staircase, dating from the early 20th century, is designed in a mid-Georgian style, with moulded tread ends, a ramped handrail, column newels, and twisted balusters, similar to that at Glanpaith, Llanfarian. An arched-headed door beneath the stair is a former exterior door, now leading to a 20th-century kitchen extension that obscures five stone steps. The ground floor reception rooms have panelled shutters and attractive panelled reveals to the pointed heads of the windows, with decorative mouldings within the panels. The central library features a stucco cornice and ceiling rose, fluted door frames, and a lion's head motif on the door frame shoulders and above fitted cupboards flanking the fireplace. Glazed overlights to the doors of the flanking rooms have Gothic arched heads with interlacing glazing bars, matching the door detail. A similar detail is found in the sitting room within the rear wing. One bedroom retains a 19th-century stucco cornice.

The farmhouse section has timber lintels to the openings and a staircase with stick balusters and a ramped rail. An upper floor bedroom features a large open fireplace with a wide brick arch and an oak beam. Some ground floor beams are said to originate from Morfa Bychan and were installed in the late 20th century.