Castle built in 1381-5 as a result of a French raid which ravaged this part of Kent in 1379. The building covered nearly eight acres. The defences consisted chiefly of stone walls, some loopholed for guns, and water moats but the extreme east was fortified with a rampart and ditch. There were several enclosures. A shell keep of masonry defended by a moat. A large courtyard on the east, also defended by a stone wall with corner towers and outside ditch probably once containing water and a court on the north west defended by water only. The water is supplied by springs and at times the sea may have washed around the moats. The castle was abandoned after 1554. Scheduled.