Maes-y-Groes Farmhouse

Maes-y-Groes Farmhouse is a 3-storey, 2-unit double-pile house, likely dating to the 18th century. It is constructed of brick with a slate roof and later brick end stacks which are corbelled out. The symmetrical front elevation features a dentil plat band above the ground floor. A central, gabled porch was later added, containing a round-headed arch with a boarded door and fixed windows in the side walls. The original front door is boarded and has a moulded doorcase. Four window openings are present in the lower storey; the outer two are blocked, while the inner openings contain wider 2-light casement windows with transoms. The middle storey has two similar inserted windows, also slightly wider than the original flat arches, with the outer windows blocked. The upper storey has two 2-light windows beneath the eaves.

The left-hand gable end has two plain plat bands. The lower storey contains a 2-light casement window replacing an original segmental-headed opening on the right side, and an inserted window on the left. The middle storey has two original segmental-headed window openings, one blocked on the right and replaced on the left. The upper storey contains a single blocked window. The right-hand gable end also has two dentil plat bands. It features an original, now blocked, segmental-headed window to the right in the lower storey, and an inserted window to its left. The middle storey has a blocked window on the left and a replaced 2-light casement window on the right, both in original openings. The upper storey contains replacement 2-light windows on both sides within earlier openings, and a blocked central window in an original opening.

The rear elevation has a single plain plat band, interrupted by an inserted window and a former rear wing. On the left side, an enlarged window sits within an original, but narrower, segmental head. Inserted windows are present in the middle and upper storeys. On the right side is a flat-roofed, single-storey rear wing with modern windows; it was originally two-storey, and the outline of its earlier gabled roof is visible at the rear of the main house.

Internally, the room to the right of the original entrance, likely the hall, has an ovolo-moulded cross beam with stop-chamfered joists. The room to the left has a spine beam and stopped joists. Behind is a full-height dog-leg staircase incorporating C17-style fretwork balusters, which appear to have been renewed, possibly during a 1971 restoration. These do not match the original rectangular newels with domed caps. The middle storey retains three C18 panel doors.