Westerham is a community and civil parish in the Sevenoaks District of Kent, England, situated 5 miles (8 kilometres) west of Sevenoaks. It is recorded as early as the 9th century, and was stated in the Domesday Book in a Norman kind, Oistreham (contrast Ouistreham in Normandy, Oistreham in 1086). Ham is Old English for a town or homestead, therefore Westerham means a western homestead. The River Darent moves through the town, and also previously powered 3 watermills. Westerham was house to the Black Eagle Brewery, which was taken control of 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 Cultures as well as is currently used by the existing day Westerham Brewery which was established in 2004 by Robert Wicks. The brewery creates a series of ales, including Westerham British Bulldog. Westerham was home to Crayford Engineering, an effective auto conversion business, from 1962 to the 1980s, working from a workshop at Squerryes Mede.