Cae'rwigau Isaf

Cae'rwigau Isaf is a two-and-a-half storey, single-cell, gable-entry house dating from the 16th century. It is oriented east-west and constructed of limewashed rubble with a gabled tile roof. A later, one-and-a-half storey range extends to the west. The roof is gabled and slated, with two gable stacks and one axial stack of limewashed rubble. The facade features two windows per floor. The original windows are mullioned, retaining their dressed Pennant sandstone frames and hood moulds with decorative labels featuring diagonal crosses. These windows have sunk chamfer mouldings. The front elevation retains all original windows, while the rear elevation retains one single two-light mullioned window, with later timber casements in the other original openings. A stair outshut to the rear features two lights; the ground floor light was enlarged in the 19th century. A later two-storey porch has been added to the front elevation, with a gable chimney and side entry.

The porch provides entry to the original cell. Within this cell, original dressed sandstone door surrounds of four-centred Tudor arch form remain, with plain chamfers terminating on the jambs with broached Glamorgan stops, serving both the original gable entry and the cross corner stair doorways. The original hall contains a large, dressed sandstone fire surround of 16th-century date, with a flat arch, plain chamfers, and diagonal stops. The stone, cross-corner entry stairs within the outshut extend to the second floor. The hall has two heavy exposed beams with medium chamfers and hollow stops, though the original joists are lost. Two original heavy timber door surrounds, with four-centred heads and broached stops, lead to spiral stairways on the first floor. The first floor chamber is heated by a corbelled stack at the western end, featuring a fine dressed fire surround of plain chamfered form which was formerly external before being internalised through later additions. Massive corbels are now exposed internally in a later ground floor room to the west of the early cell. The original range retains an 'A' frame roof structure with mortice and tenon jointed collars and trenched purlins.