The station was to have been built on the W&SR's planned surface railway line in Surrey (now south-west London) from Wimbledon to Sutton.
[2] In 1911 the UERL agreed to provide funding for the line's construction and to operate its train services by extending the UERL's District Railway (DR) from Wimbledon station.
[3] Delays in the purchase of land along the railway's route and the outbreak of the First World War prevented the works from commencing; the permission was extended several times, with a final extension granted in 1922.
[4] Following the war, the UERL presented new proposals to construct an extension of the City and South London Railway (C&SLR, now part of the Northern line) southward in tunnel from Clapham Common, coming to the surface at Morden, and thence joining the W&SR route.
The plan to extend the C&SLR was opposed by the Southern Railway (SR), the operator of the mainline services through Wimbledon and Sutton.