Westerham is a town as well as civil parish in the Sevenoaks District of Kent, England, located 5 miles (8 km) west of Sevenoaks. It is recorded as early as the 9th century, and also was discussed in the Domesday Book in a Norman form, Oistreham (contrast Ouistreham in Normandy, Oistreham in 1086). Ham is Old English for a village or homestead, and so Westerham means a western homestead. The River Darent flows via the community, and also formerly powered 3 watermills. Westerham was residence to the Black Eagle Brewery, which was taken over by Taylor Walker & Co in the 1950s, becoming part of Ind Coope in 1959 and also enclosing 1965. Yeast from the brewery was maintained at the National Collection of Yeast Societies and is now used by the existing day Westerham Brewery which was established in 2004 by Robert Wicks. The brewery creates a series of ales, consisting of Westerham British Bulldog. Westerham was home to Crayford Engineering, an effective car conversion business, from 1962 to the 1980s, functioning from a workshop at Squerryes Mede.