 Originally built as Chiswick Tram depot, it had latterly been used to operate the British European Airways bus service between Heathrow Airport and the West London Air Terminal on Cromwell Road.The original plan was to create a temporary home for the Riverside garage buses and staff whilst that garage was re-built with a view to taking on the workload from Mortlake and Turnham Green which were to close.However this idea was changed and the garage took on the work from Turnham Green which closed and also inherited the garage code V. Following service reductions, Mortlake and Riverside closed in 1983, with some of their work moving to Stamford Brook.