Heatherton Park

Heatherton Park is a country house, dating to circa 1770, originally commissioned for Sir Thomas Gunston. It has undergone alterations in the 1790s, the 1840s, and circa 1920. The brick facade is rendered, with a rusticated ground floor that is largely obscured on the entrance front by an ashlar conservatory to the left and a 20th-century lateral staircase block to the right. It has hipped slate roofs, a moulded cornice, and large brick stacks.

The main block is five bays wide, facing south, with a four-bay east front linked in the northeast corner by a three-bay service wing. Two small, square lodges abut the north front, enclosing a service yard. A conservatory fronts the main block, connected by an open loggia to the west end of a chapel that runs north-south.

The house is three storeys plus an attic. The main block has two flat-roofed, three-light dormers in the roof space, with 12-pane sash windows below. There are moulded surrounds to the sills of the second floor, and similar detailing with moulded lintels and a pediment over the central window of the main block. The service block contains 20th-century glazed French windows for the lateral staircase. The ground floor of the main block is masked by the flat-roofed conservatory. Four nine-pane windows flank a central, projecting, flat-roofed porch with a balustrade and a square-headed doorway with narrow side lights. The conservatory continues as an open loggia, linking to the chapel's hipped asbestos slate roof. The architecture incorporates early 18th-century baroque-style details.

The rear elevation, overlooking a courtyard, features pilaster quoins and a semi-circular headed blind arcade on the ground floor, with two divided tracery lights over the back door. Some 12-pane sash windows are also present. There are two single-storey, pyramid-roofed lodges with central stacks.

The interior has not been inspected. A drawing by William Blogg was exhibited at the Royal Academy in 1797, intended to improve the front of a house, although it is uncertain whether it was for this property or one located in Sussex. The Adair family lived at Heatherton in the 19th century and sold the estate in 1920. In 1922, it was converted into St Katherine School, during which time the chapel – a pastiche of a baroque building – was constructed.