 Under the provisions of the Croydon Aerodrome Extension Act 1925, the airport was greatly enlarged between 1926 and 1928, with a new complex of buildings being constructed alongside Purley Way, including the first purpose-designed airport terminal and air traffic control tower, the world's first airport hotel, and extensive hangars.The development cost £267,000 (£ in today's prices) .Plough Lane was closed permanently to let heavier airliners land and depart safely.