The 'pseudo Gothic' style mansion fort built in 1848 by Sir John Hare. He demolished the existing buildings within the walls of the old castle, and used a tower and underground passages, remains from the 13th century as the basis of his building. In 1899, Sir John Whitley acquired the site and then created the seaside resort of Hardelaut, making the castle the focal point of the estate with hospitality, club and various activities (golf, fishing, tennis, etc.)