Plas Aberllefenni

Plas Aberllefenni is an 'L'-shaped house built in the 18th century, constructed from grey slate that is cut and coursed above a rubble plinth, and it has a slate roof. The main facade faces south and features an earlier stepped gable end with seven steps on kneelers at the left, which has an offset at the first floor ceiling level and terminates with a stack. The masonry of this wing extends to the rear, where there is another stepped gable end. The facade consists of two storeys with five window bays, and a central entrance that is approached by four steps, two of which are semicircular. This leads to a four-reeded panelled door with an overlight, all set within a Classical porch supported by slender octagonal slate columns.

Both floors are fitted with large, closely spaced 12-pane horned sash windows, which have slate sills and lintels. The eaves are coved with slate. At the rear of the main front, there is a small coped gable with a stack, and the re-entrant angle is filled with a large service lean-to. There are three inconspicuous roof lights, some blocked windows in the left gable end, and one 12-pane sash window on each floor in the rear wing, along with a blocked window above the side entrance.

Inside, the entrance leads directly to the reception hall, with a staircase at the rear that features an early 17th-century newel stair with an open well and turned balusters. To the left is the living room, which contains a finely crafted slate fireplace in the gable end. The ceilings are plastered and adorned with heavy chamfered cross beams with bar stops, dating from the late 16th or early 17th century. The partition leading to the current kitchen on the right side of the hall is likely original. In the rear wing, there is a chamber on the first floor that boasts fine bolection moulded panelling, a chair rail, and a cornice. Some original panelled doors from the 16th and 17th centuries remain. The stair to the roof reveals collar beam trusses from the 16th and 17th centuries in both the front range and the rear wing, along with some wattle and daub partitions, and at the rear gable end, there is a remarkable moulded door from the late 16th century.