Northolt Halt, located on the opposite side of the road bridge from the current Northolt tube station, was opened by the GWR in 1907. It was later renamed "Northolt (for West End) Halt", before gaining station status under its original shorter name. It was closed in 1948 following the extension of the Central line to West Ruislip, the current tube station opening on 21 November 1948.
