 In March 2017, Camberley-based construction company BAM Nuttall announced that they had been successful in winning a £20 million contract to refurbish Birkenhead North and rebuild the depot at Kirkdale.The depot is operated by Stadler Rail Service UK, a subsidiary of the new fleet's manufacturer, and has a driver training simulator, maintenance shed and washing and stabling facilities for up to 30 trains.Construction of the new facilities commenced in October 2017, with work completed by November 2019, in time for the delivery and testing of the new fleet.