Seton Castle

Seton Castle

A castellated three-storey country house with basement, designed by Robert Adam between 1789 and 1791, with Thomas Russell as co-architect for the mansions. Built on the site of an earlier palace, the house has a rectangular plan with chamfered corners, circular and square towers, and a bowed tower-bay. The design is largely symmetrical in plan and elevation.

Two two-storey service pavilions in U-plan form are adjoined to the main house, with quadrant screen walls at the north mirrored at the south to enclose a courtyard. The building is constructed from varicoloured sandstone, squared and snecked with grey predominating, with ashlar dressings. Evidence of former harling remains. Cill and band courses run across the facades, and a corbelled parapet crowns the walls.

The south elevation, facing the entrance, features a centre bay set forward with steps leading to a segmentally arched tripartite doorway with pilasters and a decorative fanlight above two-leaf panelled doors. A quasi-Venetian window sits above at first-floor level with round-arched side lights. A tripartite arrangement of round-arched lights appears at second-floor level. A crowstepped gablehead surmounts the parapet with an oculus at its centre. Square towers advance on either side of the entrance bay, featuring arrow-slit windows to the south elevation on the principal and second floors—cross-shaped on the first floor—with screen walls adjoining at ground level. Each flanking bay contains a window to each floor, while circular towers flank the chamfered corner bays, also with arrow-slit windows.

The north elevation is exposed at basement level where ground falls away. A full-height bowed tower-bay occupies the centre, containing three windows to each floor with round arches above the basement and a tripartite arrangement to the centre (blind lights flanking the second-floor window). A basement door sits at the centre. Windows appear in each floor of the flanking bays, with doors inserted in the bay to the right of centre at basement and principal-floor levels, accompanied by a painted timber forestair and a small-pane fanlight to the upper floor; two-leaf panelled doors are fitted. Circular towers occupy the positions of the chamfered corner bays, with arrow-slit windows to each floor.

The east and west elevations are three-bay, with corner bays chamfered and the centre of each bay recessed. A basement door sits at the centre of each elevation. Venetian windows appear to the principal, first, and second floors, becoming shorter on the upper floors with blinded centre lights at the first and second. Corner bays contain a window to each floor, narrow and set within round-arched panels at the first and second floors, with round arches visible at the second.

The east and west service pavilions follow a U-plan, opening to their respective cardinal directions with square corner towers breaking the eaves at outer angles and lower elevations to the service courts. Various blinded windows and arrow-slits ornament the facades. The west pavilion houses the kitchens; the east contains the stables. Elevations facing the principal courtyard feature Venetian windows at ground level at the centre, flanked by tower-pilasters with screen walls abutting the sides. The south elevation of each pavilion is three-bay, with full-height round-arched panels recessed at the centre, narrow windows at ground level, and blinded tripartite round-arched windows within the panels at first-floor level, with four-pane windows in the flanking bays.

The north elevation of each service pavilion is three-bay with full-height round-arched panels to each bay; narrow windows occupy the ground floor and four-pane first-floor windows the upper level. Round-arched panels appear on the north and south service-court elevations of the west pavilion, with two-leaf garage doors inserted. Segmental carriage archways with two-leaf doors stand to one side of the stable court, with doors to the stables and hayloft windows visible.

Quadrant screen walls enclose the principal courtyard at its four corners, adjoining the house and connected to the service pavilions by curtain walls. Sections of corbelled parapet and string course mark these walls. A wide round-arched gateway in the convex quadrants to the south is flanked by square towers with recessed panels. Blind arrow slits punctuate the quadrants. The south quadrants contain loggias opening to the courtyard, each with round-arched bays.

Sash and case windows throughout retain small-pane glazing patterns. Ashlar coped stacks rise above the roofline, which is covered with grey slates.

The interior features restrained classical decoration, though some alterations have been made. Three main rooms occupy the principal floor in enfilade arrangement. A cantilevered stair rises within the hall with a trellis-work wrought-iron balustrade. The drawing room possesses a bowed bay and a fine classical alabaster chimneypiece with blue tile slip and an ornate fender. The dining room contains four curved doors and a fine classical chimneypiece brought from Kirkcudbrightshire, made by Whytock and Reid. Classical plaster friezes ornament the walls, and decorative finger plates and brass curtain poles are fitted throughout. A barrel-vaulted room occupies the east side of the basement.

The service pavilions retain boarded stalls in the east pavilion with boarded and railed travises and a loose box with distemper walls. The kitchen pavilion has been altered, though a Carron Company kitchen range remains in place.

A gadrooned stone basin stands in the principal courtyard as a garden ornament.

Retaining and terrace walls, probably pre-dating the 17th century, comprise sandstone rubble walls belonging to the policies of Seton House. These include the boundary of an orchard to the north and continue around Seton Collegiate Church with corner towers, some features displaying harl-pointing. The southwest corner is named Orchard Corner, marked by corbelled stone facing the roadside. Sizeable rubble buttresses stand at intervals along these walls. A rubble coped terrace wall runs by a dene to the north of the house, with a bridge spanning the dene to the northwest.