Nant-y-Meirch Cottage and attached Agricultural Range

Nant-y-Meirch Cottage and the attached agricultural range is a single-storey, sub-medieval vernacular house built from whitewashed rubble, with timber-framed origins and a boulder plinth. It features a slate roof and a 19th-century red brick chimney stack that is unusually positioned midway up the front verge, along with raised eaves. The cottage has four-pane windows, two of which are located beside the boarded door entrance on the left side, while a separate window is found to the right. At the northeast end, there is a modern lean-to addition.

Adjoining the cottage is an unwhitened rubble stable section that is flush and stepped up to the right. This section includes a stable door on the right with a slate lintel and stone steps leading up to a loft on the left. The loft entrance has been converted into a modern plain-glazed window, and the stable has a slate roof with projecting kneelers, similar to the stone kneeler at the rear of the cottage. Beyond the stable section, there is a stepped-down, unwhitened three-bay former cowhouse that features modern plain-glazed windows and doors.

On the rear elevation, there is a cross-frame window on the right with diamond leaded top-lights, an irregular 12-pane sash window in the center, and a three-light window on the left with small panes at the top.

Inside, Nant-y-Meirch Cottage has three cruck-like trusses, two of which are of the upper-cruck type, while the third is uncertain. The open hall features a balustraded loft at the northeast end, supported by a massive bressumer that holds the feet of one of the upper-cruck trusses. There is a closed truss at the southwest end of the hall, which forms a partition. The entrance leads into a passage that runs along the front wall. A stone dividing wall has been inserted between the cottage and the store. The original plan of the building is unclear, but it appears not to have had a chimney, suggesting it may have either had an open hearth or was not originally intended as a domestic building.