Bryn Mwllach

Bryn Mwllach is a small one-and-a-half-storey cottage dating from the late 17th century to the 18th century, with a near-contemporary but later addition to the southwest. There is also a byre addition, likely from the 19th century, adjoining beyond. The cottage has undergone late 19th-century alterations, including raising the structure to create an attic storey. It is built of whitened rubble on rock foundations and features renewed slate roofs.

The primary range of the cottage faces west, while the adjoining later section faces east. On the left side, there is a partly-projecting end chimney with a squat stack and a plain slate cornice. The central entrance has a recessed boarded door, flanked by small recessed windows with 4-pane 19th-century sashes. Above, similar windows are contained within gabled 19th-century dormers, which have plain modern bargeboards. At the rear, there are two small original windows and a suggestion of a blocked off-centre entrance.

To the right, there is a single-storey block that steps down and is flush with the main structure, featuring a squat end chimney and modern skylights. The rear has an off-centre entrance with original flanking window openings, a boarded door, and modern glazing. Slightly stepped down and adjoining to the right is a stable or byre extension, which is single-storey with a modern corrugated roof. This extension has opposing boarded entrances and a boarded loading bay on the gable end.

Inside, there are modern slate-flagged floors and a beamed ceiling. Both sections of the cottage feature wide inglenook fireplaces; the one on the left has a chamfered bressummer with a run-out stop on the right, while the fireplace in the later section has a wide bressummer that has been reduced by later infill on the left. The interior also includes simple late 19th-century boarded pine partitions and modern roofs.