Biggin Hill is a district on the south-eastern outskirts of Greater London, England, within the London Borough of Bromley. Prior to 1965, it was in the administrative county of Kent. It is situated beyond London’s urban sprawl, 15.2 miles (24.5 km) south-southeast of Charing Cross, with Keston to the north, New Addington to the north-west and Tatsfield, in the neighbouring county of Surrey, to the south. At the 2011 Census, Biggin Hill had a population of 9,951.
Biggin Hill is one of the highest points of Greater London, rising to over 210 metres (690 ft) above sea level. Biggin Hill Airport occupies land formerly used by RAF Biggin Hill, one of the principal fighter bases protecting London from German bombers during the Battle of Britain.