 Following the Imperial Airways de Havilland DH.34 crash of December 1924, Britain's first major civil aviation accident, conditions at Croydon came under criticism from the public inquiry that investigated the causes.The inquiry was Britain's first into an aviation accident which led to an Act of Parliament, the Croydon Aerodrome Extension Act 1925.The Croydon Aerodrome Extension Act led to large scale expansion, redevelopment and construction of an improved new airport with airport buildings constructed adjacent to the Purley Way, Croydon.