Tre Iorwerth

Tre Iorwerth is a two-storey house with attics, dating to the 18th century, with later additions to the rear. The main part is three bays wide and built of rubble masonry, rendered on the front elevation. The roof is slate, with projecting eaves and verges. Decorative bargeboards are present on the side elevations, with shaped bargeboards to the rear. Brick stacks, paired and with rendered plinths and caps, rise from the gable ends and along the ridge of the linking block.

The principal elevation is symmetrically planned and features a slate-roofed verandah, supported by slender cast-iron columns, encompassing three sides and incorporating a central canted bay that forms the entrance porch. The windows are slightly recessed, hornless sashes with 12 panes, except on the first floor where they have 9 panes. The right return has similarly detailed windows in a ground-floor canted bay, with a single upper-storey window to the right. A recess is blind to the left. A linking block and the gable end of a rear range extend beyond, also with sash windows. The left return has a recessed hornless sash upper-storey window and a smaller sash window in the gable apex, with fixed lights on the lower storey. An added wing features a horned sash window above a mullioned sash window. The rear of the building has scattered window openings; the main part has a central, round-headed stair window, and the gable of the parallel range has hornless sash windows with two horizontal sliding sashes in the apex. Other rear windows are later additions or reset sashes, likely from when the rear range was truncated.

Inside, the main part has a central stair plan. The front entrance leads into a flagged hallway with a dog-leg, open string staircase, featuring a wreathed clasping handrail and supported by three turned balusters to each stair. This staircase is said to have been re-set from Penrhos house in Trearddur after its disrepair in the 1950s. Ground-floor sitting rooms lead off the hallway and have dressed stone fire surrounds with plain shield motifs. Some ground-floor rooms retain panelled shutters. The kitchen features three stepped, voussoir arched recesses which house the range.