Highgrove House is the family residence of Charles, Prince of Wales, and Camilla, Duchess of Cornwall, situated south west of Tetbury in Gloucestershire, England. Built in the late 18th-century, Highgrove and its estate was owned by various families until it was purchased in 1980 by the Duchy of Cornwall from Maurice Macmillan. Charles remodelled the Georgian house with neo-classical additions in 1987. The duchy manage the estate and the nearby Duchy Home Farm. The house is noted for its extensive gardens which receive more than 30,000 visitors a year. The house and gardens are run according to Charles's environmental principles, and have been the subject of several books and television programmes.