From the Wikipedia article on Banstead 
Banstead is a town in the borough of Reigate and Banstead in the county of Surrey, England, on the border with Greater London. It lies 13 miles (21 km) south of London, 3 miles (5 km) south of Sutton, 5 miles (8 km) west of Croydon and 8.5 miles (14 km) south-east of the county town of Kingston-Upon-Thames. Banstead is on the North Downs and is protected by the Metropolitan Green Belt; Banstead Downs is a Site of Special Scientific Interest (SSSI). Although Banstead is a town, it is frequently referred to and known as "Banstead Village". Nearby towns include Epsom and Worcester Park to the west, Reigate to the south and Leatherhead to the west.
At the 2001 Census the population of Banstead Village ward was 8,510, although the area covered by the former Banstead Urban District had 46,280 people