 The airport's terminal building and control tower were completed in 1928, and the old wooden air traffic control and customs building demolished.The new buildings and layout began operations on 20 January 1928, and were officially opened on 2 May 1928 by Lady Maud Hoare.Croydon was where regular international passenger services began, initially using converted wartime bombers, and the Croydon–Le Bourget route soon became the busiest in the world.