Ty Isaf

Ty Isaf is a two-story farmhouse, likely dating from the 18th century, with a two-story cross-gabled porch on the south side and two rear cross wings. One wing, to the east, is slightly lower than the main ridge and has a battered base. The former kitchen wing to the west is single-story with an attic. Attached to the west is a former farm range, now ruined. The house is constructed from sandstone rubble with boulder footings, originally rendered and limewashed, now white with a buff tint beneath. It has Welsh slate roofs with rendered stacks at the centre ridge, the end ridge to the west, to the kitchen wing, and a corbelled first-floor chimney on the rear east wing.

The south-facing porch, a dominant feature, has a Tudor-arched, chamfered stone doorway that has been partially blocked to create a window. There's a remodelled window in the porch apex, with a small window to the right side. To the right of the porch is a small upper window under the eaves, a 3/3 pane sash. Below is a 6/6 pane casement window on the ground floor; to the left is a 6/6 pane casement window on the first floor, with a replacement window below. The side range to the right has small casement windows. At the rear, beneath the corbelled chimney, is a decayed square-headed two-light mullioned window. Other rear windows and entrances through the rear wings lack historic features, although the former side entrance to the northeast wing retains voussoirs.

An earlier section on the east side of the house comprises a small room on the left (west) and a hall on the right (east). The small room's original entrance opened onto the dividing chimney. It contains an axial beam with slots for a timber screen, broad chamfered beams with run-out stops, and square joists reed-moulded on the lower face to the south, along with a window with a seat in the reveals. The hall has deeply chamfered cross beams with broach stops, partly supported by corbels, and similar joists, also with window seats in the reveals. Wallpaintings of figures in Elizabethan dress were formerly on an adjacent wall. A large open fireplace is present, with doorways on each side. Winding stone stairs are located to the right, featuring curved treads and a limewashed cross slab roof. The upper floor has an exposed massive A-frame roof truss in the main room, with a cut tie beam, three rows of trenched purlins, and timbers accommodating the addition of the rear wing. A blocked fireplace and no visible chimney are now in the end wall. A small upper room provides access to the upper porch room. A later wing to the northeast has wide timber floorboards and a fireplace. A later wing to the southeast features a second large open fireplace on the ground floor with a repaired timber lintel, chamfered beams with broach stops, blocked openings, and a second winding stone staircase to the right. The kitchen wing, on two levels and now joined to the main range at the northwest, also contains a chimney with a bread oven and an adjacent winding stone staircase, alongside cross beams with broad chamfers and filleted stops. Interior plaster was removed around the 1970s and replaced with cement render, which was subsequently removed during repairs in 1996.