Old Oak Common railway station

Old Oak Common is a planned railway station to be constructed on the site of the Old Oak Common traction maintenance depot to the west of London in Old Oak Common, approximately 1⁄3 mile south of Willesden Junction station. When built, it is expected to be one of the largest rail hubs in London, at about 1⁄2 mile in length and 65 feet below surface level.
The new station has been included as a part of the High Speed 2 line from London to Birmingham, covered by the High Speed Rail Act 2017. This hybrid bill conferred powers to construct and maintain phase 1, including intermediate stations. The surrounding area, including possible above-station development, is controlled by the Old Oak and Park Royal Development Corporation set up in April 2015.
The station will provide a major transport interchange with a number of other main line and commuter rail services, including the Elizabeth line and other services on the Great Western Main Line. The High Speed 2 line will be below ground level at the Old Oak Common site, with the parallel Great Western Main Line and Crossrail tracks on the surface to the south. In May 2020, the station gained planning permission.

Wikipedia