Former Roman Catholic School of St Mary

This is a former Roman Catholic school, built around 1840 to the designs of Weightman and Hadfield for the 12th Duke of Norfolk. Extensions to the rear are not included in the listing.

The building is constructed of coursed squared rubble with a plain tile roof, ashlar window dressings, and ashlar quoins. It has a T-shaped plan, with a rectangular hall oriented north-south and a central range projecting to the west.

The mid-19th century school building is a single-storey hall with ashlar quoins beneath a pitched roof with sprocketed eaves. A gabled range projects from the central bay of the main (west) frontage and features a chamfered plinth, sill, and lintel bands. It has a pair of four-light windows with stone mullions and transoms. The gable above contains a pair of louvred slits, and the apex is surmounted by a wrought iron cross. A stepped stone stack with quoins is on the south pitch of the roof. To either side of the projecting range are two pairs of glazing bar casements in flush stone surrounds. The south end of this elevation has a doorway with a timber planked door, and the north end has a two-light casement, both with segmental arched heads and set within flush stone surrounds with spandrels. The south elevation has two large window openings with 20th-century windows, while the north elevation has two smaller multipaned windows. Both the north and south elevations feature coped gables inset with a pair of louvred slits flanked by metal shields featuring a crucifix.

The main hall is open plan with a kitchen and servery hatch to the north end, and access to the west and east ranges. The hall is partially panelled and the ceiling features canted ribs springing from a cornice. This design is continued in the western range, which is accessed through a doorway in the west wall. This room has an arched niche and chimney breast, though the fireplace has been removed. A crucifix cartouche is set in the south wall at cornice height. The windows are set within segmental arched niches with chamfered sills; those to the east side of the hall are at clerestory level. The internal doors have been replaced with 20th-century fire doors. Throughout the building are several corbelled vents with hand-shaped turns.