 By the mid-1840s, commuter services to Wandsworth, , Kingston upon Thames, and had become an important part of L&SWR traffic, so the company began to look for a terminus closer to Central London and the West End.An Act of Parliament was granted in 1845 to extend the line towards a site on York Road, close to Waterloo Bridge.The extension past Nine Elms involved demolishing 700 houses, and most of it was carried on a brick viaduct to minimise disruption.