Castlehill House, Castlehill

Late 18th century, with later additions; extensively restored 1993 by Simpson and Brown. 3-storey, 3-bay, classically-detailed town house. Rubble-built with ashlar dressings, lime-washed, slate roof. Rusticated quoins, ashlar-coped skews, corniced end stacks. Ashlar-margined windows, 12-pane timber sash and case glazing.

N ELEVATION: Central stuccoed porch at ground and 1st floors added circa 1853-4 with pilastered and corniced doorpiece and main cornice, masking original Venetian windows to ground and 1st floors Bay to left obscured by entrance and stair to St Roque's Halls. Single-storey flat-roofed passage linking house to church added circa 1950.

S ELEVATION: prominent projecting 3-bay bow to centre, centre bay blind, battered concrete base, small windows at ground floor with linking lintel course, central shouldered wallhead stack with oculus; single window to all floors at bays to left and right; 2 canted dormers.

INTERIOR: largely intact, including cornices and joinery, and some chimneypieces. Original spiral stair with stone newel at ground floor, wrought-iron balusters above; later spiral stair with ornate cast-iron balusters giving external access to 1st floor.

BOUNDARY WALL: coped rubble boundary wall to front, part of similar wall to St Roque's Hall and St Paul's Cathedral.