Westerham is a community as well as civil parish in the Sevenoaks District of Kent, England, situated 5 miles (8 km) west of Sevenoaks. It is recorded as early as the 9th century, and was stated in the Domesday Book in a Norman kind, Oistreham (compare Ouistreham in Normandy, Oistreham in 1086). Ham is Old English for a town or homestead, and so Westerham means a westerly homestead. The River Darent streams via the town, as well as previously powered three watermills. Westerham was home to the Black Eagle Brewery, which was taken over by Taylor Walker & Co in the 1950s, entering into Ind Coope in 1959 and also closing in 1965. Yeast from the brewery was maintained at the National Collection of Yeast Cultures and is currently used by the existing day Westerham Brewery which was developed in 2004 by Robert Wicks. The brewery creates a variety of ales, including Westerham British Bulldog. Westerham was house to Crayford Engineering, a successful automobile conversion company, from 1962 to the 1980s, working from a workshop at Squerryes Mede.