Grimethorpe Hall

Grimethorpe Hall is a house dating from around 1670, with alterations made in the 18th, 19th, and 20th centuries, originally built for Robert Seaton. The house is constructed of English-bond red brick with ashlar sandstone dressings; the rear elevation features herringbone-punched coursed, squared sandstone. It has Welsh slate roofs. The building has a square, twin-roofed plan with a central staircase, gabled at the rear but with roofs concealed by a linking parapet to the entrance front. It is two storeys high with a half-basement to the rear, and includes an attic.

The entrance front has five bays and features a rubble-stone plinth wall beneath a chamfered band, with stone quoins. The renewed central doorway is set into a quoined surround with projecting mouldings, plinth blocks, and imposts. The lintel has a curved soffit and a face cut into the shape of a keyblock, flanked by short pilasters, topped with a cornice. Brick pilasters flank the door, with moulded stone bands approximately one metre from the plinth and another below a linking cornice. Small, shaped stones decorate each pilaster. The ground and first floor bays have renewed sash windows with glazing bars, projecting sills, and continuous bands above plain lintels. The attic storey has a small, blind, central opening beneath a glazed oculus set in a square ashlar panel with a ledge and cornice. Flanking this are two 2-light double-chamfered mullion windows with leaded lights. An ashlar coping tops a flat-topped parapet, which slopes down to each side to match the angle of the roof. Projecting lateral stacks, with stone quoins to the ground and first floors, have been rebuilt in brickwork above. The rear elevation, with three storeys and three bays, continues the bands above the windows from the front. A central basement doorway with a chamfered quoined surround and curved head has been inserted, along with a 2-light mullioned window above. Altered openings are visible in the flanking bays. The ground floor has a central cross-mullioned window with leaded lights, flanked by sashed windows with glazing bars. The first floor has three cross-mullioned windows, and the attic floor has three 2-light mullioned windows; the central window is set within a small gabled dormer with kneelers and copings, while the outer windows are in the coped gables of the main roofs.

On the right return is an inserted doorway in a bonded ashlar surround, with a 2-light mullioned overlight. Projecting stacks are present on each side, and cross-mullioned windows are visible on the first floor at each end. The left return has a blocked quoined doorway, now a window, above which is a renewed double-chamfered cross-mullioned window; other blocked cross-mullioned windows are also present. Two projecting stacks are visible. The interior features three Doric columns to the right of the entrance hall, apparently originally stone but now painted. Several chamfered quoined doorways exist, some with old cross-boarded doors and decorative iron hinges. A doorway in the rear right basement is set beneath a wooden broken-pedimented head.