Trefa

Trefa is a house and shop, originally built as a house, dating from the early 18th century. It is constructed of dressed coursed elvan with dressed granite quoins and dressed voussoirs above flat arches, featuring slate sills. The roof is made of scantle slate with gable ends and has gable and axial stacks, with brick chimneys except for a stone chimney on the right-hand gable end. The building has cast-iron ogee gutters.

The plan is L-shaped, likely originally consisting of a two-room house with a cross passage between the rooms and a single-room service area behind the left-hand room. In the early to mid-19th century, the right-hand room, probably the parlour, was converted into a shop, with a lean-to added behind it. The left-hand room and cross passage were transformed into a two-room-wide house with smaller rooms, and the passage was relocated towards the left between these rooms.

The exterior is two storeys high with a slightly irregular three-window south front, which was probably originally a nearly symmetrical five-window front. It now features a two-window house front on the left, with a doorway centrally located to the fenestration, and a shopfront on the right with one first-floor window. The house has a doorway in what is likely a former window position, and the right-hand window is in a former doorway position. It has a six-panel door with the top panels later glazed, a blocked window opening above the doorway, and early 19th-century twelve-pane hornless sashes on the ground floor openings, with sixteen-pane similar sashes on the first floor, except for the middle window, which is a horned copy. The shopfront on the right has large panes and a doorway on its left. The interior has not been inspected.