Westerham is a town and civil parish in the Sevenoaks District of Kent, in South East England with 5,000 people. The parish is south of the North Downs, ten miles west of Sevenoaks. It covers 5,800 acres . It is recorded as early as the 9th century, and was mentioned in the Domesday Book in a Norman form, Oistreham. Hām is Old English for a village or homestead, and so Westerham means a westerly homestead and the source of the English word “home”.