Derndale and Attached Outbuildings

Derndale is a farmhouse with attached outbuildings, likely dating from the 17th and 18th centuries, with early 19th-century remodelling. The building is constructed from timber framing and sandstone rubble, with brick accents and sandstone dressings. The roofs are covered in Welsh slate and sandstone slate. The plan is irregular, with the main garden front facing southwest.

The southwest elevation has a three-by-one window arrangement, featuring glazing bar sash windows with segmental heads and projecting keystones. Sandstone ashlar plinths support the brickwork, which is divided into two sections by plat bands. A parapet with a dentilled brick eaves cornice tops the elevation. The central entrance has an early 19th-century six-panel door, above a fanlight and fluted transom, set within a fluted round-headed architrave. A porch with two wooden Tuscan columns is supported by a narrow architrave and cornice. To the left is a single-storey, one-bay range with a large tripartite glazing bar window, and a mid-20th-century colonnade enclosing an early 19th-century wrought iron balustrade and busts of Charles I and II. Projecting from the right-hand side are two two-storey blocks: the left is sandstone rubble with a sandstone slate roof and a possible 17th-century ledged oak door in its return, while the right is brick, likely from the early 19th century.

The north elevation features a long two-storey sandstone rubble range, likely originally a stable and granary with a timber-framed upper storey, probably dating from the late 17th to early 18th century, set at a right angle to the main farmhouse. An early 19th-century brick dairy is situated in the north angle between the stable/granary range and the farmhouse.

Inside the farmhouse, a fine early 19th-century ballroom on the ground floor has egg and dart motifs to the cove, with a thin moulding enriched with oak leaves below. Early 19th-century doors have panels with fluted margins. An early 19th-century cantilevered oak staircase comprises three flights, with stick balusters, carved tread ends, and a mahogany handrail. An early 19th-century cast iron fireplace with a raised hearth is found in a room to the northwest of the main entrance lobby. Ground floor rooms have wide oak floorboards. The dairy contains a swivelling game rack.