 Thomas Hibbert, son of Robert Hibbert, bought the estate in 1794, and employed Humphry Repton who added a boathouse and icehouse, and widened the River Misbourne to form a lake.James Main was employed as head gardener in 1795, and Thomas Girtin was invited to the estate in 1796 and painted several views of the house and lake, and Chalfont Lodge.Hibbert extended the estate in 1799 with the purchase of 31 acres and 152 acres to the north alongside Hogtrough Wood.