The English garden style landscape park in which it lies were laid out in 1725, also by William Adam. The east front centres on the distant isle of Inchgarvie and North Berwick Law. The walled garden dates from the late 18th century. In the grounds an 18th-century mound was excavated in 1963 to reveal the remains of the earlier manor house, Abercorn Castle, dating from the 15th century.