Llanerch-y-Felin

Llanerch-y-Felin is a late 18th-century house, retaining group value, originally a corn mill. The house is built of rubble with large boulder foundations, and has coved stone eaves and a modern slate roof with rounded kneelers to the gables. A contemporary chimney is located on the left gable. The off-centre entrance, on the right, has a recessed, late 19th-century four-panel door with glazed upper panels. A large two-light modern casement window sits to the left, and a smaller four-pane casement to the right. The first floor has two windows to the left and right, mirroring those below, with expressed oak lintels, those on the ground floor being particularly large. Three further casement windows with expressed lintels are visible on the north (right) gable end. A squat chimney on the west gable projects from a rear extension, reduced in size. A recessed entrance on the north side has a boarded door, flanked by a modern fixed 12-pane window to the left, and a modern steel-framed 12-pane casement to the right. A small slit-light is found in the gable. The south side of an extension features a high boulder plinth and a blind modern opening to the corner. Two further two-pane windows are located on the first floor rear of the main block, which has a concrete plinth.

Adjoining the main block to the south (left) is a later single-storey extension with a pitched slate roof and modern skylights. An entrance on the right shows a reused 16th-century pegged oak doorcase, undoubtedly from the original house, and modern casement windows to the left. The walls are approximately 0.9 metres thick.

The ground floor hall (to the left) features a large open fireplace with a heavy bressummer and an original recess for a winding mural stair to the right, accessed via an angled opening with a chamfered lintel. The main rooms have ogee-stopped-chamfered beamed ceilings, and there are oak-boarded window seats to the principal reveals, with 20th-century oak panelling. The floors are Buckley tiled, dating from the 19th and 20th centuries. An early 18th-century stair rises from the ground floor to the attic, featuring turned balusters, a moulded rail and square newels with moulded cappings; half balusters are set against the newels. A post-and-panel partition divides the hall from a former unheated parlour on the right. The partition incorporates an original doorway with a flattened pointed arch, partially obscured by the staircase. A fireplace in the larger first-floor room has a plain oak lintel supported on rounded stone corbels (now partly obscured). A contemporary oak-framed cupboard in a smaller first-floor room has a panelled door, fitted with butterfly hinges. The roof structure incorporates three-bay original cambered collar trusses with raking struts and contemporary purlins. A flattened pointed-arched opening leads to the former mural stairhead in the attic room.