the depots of individual bus companies, the overhaul works ceased operation in 1986. The premises stood derelict until 1997 when it was demolished and replaced with the Centennial Business Park. Footage of the overhaul works in operation can be seen in the opening scenes of the 1963 film Summer Holiday starring Cliff Richard. See also Edgware, Highgate and London Railway – LNER branch line taken over by London Underground as part of the Northern Heights project Notes and references Notes References Bibliography External links London Transport Museum Photographic Archive Abandoned Tube Stations – Northern Heights: Edgware – Bushey Heath Hertsmere Proposed London Underground stations Unbuilt Northern Heights extension stations Charles Holden railway stations