through Orpington, Farnborough, and Chelsfield to the uppermost tracts of the North Downs and to the Biggin Hill settlement, which has an airport and retains some of the hill-farming and woodland which dominated the area through the Industrial Revolution until the inter-war period. The wealth of the Conservative vote comes from Biggin Hill, Biggin Hill Valley, Downe and Orpington. The area mainly comprises detached and semi-detached houses surrounded by winding roads and vast areas of parkland, which since the seat's creation have continually returned Conservative candidates, with the exception of 1962, when a Liberal MP was elected. Members of Parliament Elections Elections in the 2010s By numerical vote share, the 2017 general election saw Orpington become the safest Conservative seat in London. Elections in the 2000s Elections in the 1990s Elections in the 1980s Elections in the 1970s Elections in the 1960s Elections in the 1950s Elections in the 1940s See also List of parliamentary constituencies in London Notes References External links Politics Resources (Election results from 1922 onwards) Electoral Calculus (Election results from 1955 onwards) UK Constituency Maps BBC Vote 2001 Includes 1997 and 2001 results BBC Election 2005 Political Science Resources Politics of the London Borough of Bromley Parliamentary constituencies in London Constituencies of the Parliament of the United Kingdom established in 1945 Orpington