district and borough, administrative and historic county of Surrey, England. The borough comprises the former urban districts of Esher and of Walton and Weybridge. At the southwestern edge of the Greater London metropolitan area, the district is largely residential. It includes the Sandown Park racecourse (1875) and Claremont Park, rebuilt by Lancelot (“Capability”) Brown in the Palladian style for Robert Clive of India. There is some light engineering and a large aircraft works at Brooklands. Area 37 square miles (96 square km). Pop. (2001) 121,936.