A station on the Central Line and mainline services to Paddington Railway Station via Ealing Broadway Station in Travelcard Zone 4 Mainline tracks are alongside – on which there was a station opened 1 October 1904 – now long since closed. Underground services were opened 30 June 1947. It is the terminus of the National Rail Greenford Branch Line, 2 miles 40 chains (4.0 km) down the line from West Ealing and 9 miles 6 chains (14.6 km) measured from London Paddington.

Some distance away from Greenford itself.

The Wikipedia page is [1] and the TfL page [2]