Westerham is a community and also 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 also was stated in the Domesday Book in a Norman type, Oistreham (contrast Ouistreham in Normandy, Oistreham in 1086). Ham is Old English for a village or homestead, and so Westerham implies a westerly homestead. The River Darent streams via the community, as well as formerly powered 3 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 also is now used by the present day Westerham Brewery which was established in 2004 by Robert Wicks. The brewery generates a series of ales, consisting of Westerham British Bulldog. Westerham was house to Crayford Engineering, an effective auto conversion firm, from 1962 to the 1980s, functioning from a workshop at Squerryes Mede.