Wimbledon, London Spencers attempted to get parliamentary permission to enclose the common as a new park with a house and gardens and to sell part for building. Following an enquiry, permission was refused and a board of conservators was established in 1871 to take ownership of the common and preserve it in its natural condition. Transport links improved further with railway lines to Croydon (Wimbledon and Croydon Railway, opened in 1855) and Tooting (Tooting, Merton and Wimbledon Railway, opened in 1868). The District Railway (now the London Underground District line) extended its service over new tracks from Putney in 1889. In the
Central line (London Underground) interchange, it was ruled out on grounds of cost, the disruption it would cause to the Central line while being built and because the platforms would be too close to sidings at Liverpool Street and would not be developed until after Crossrail is fully operational. The developers of the "First Central" business park at Park Royal, west London, were planning a new station between North Acton and Hanger Lane. This would have served the business park and provided a walking distance interchange with Park Royal station on the Piccadilly line. This is not being actively pursued; London Underground has said