Heathrow Terminal 5 station is a shared railway station at London Heathrow Airport Terminal 5 which was opened on 27 March 2008. It was designed by architects HOK International in conjunction with Rogers, Stirk, Harbour & Partners.The station is staffed by Heathrow Express staff unlike the underground stations at Heathrow Terminal 4 and Heathrow Terminals 1, 2, 3. The London Underground section of the station is situated in Travelcard Zone 6.