2014: Start of land preparation works. Planning for T5 begins, including functional design studies and concept development for the terminal.
2015: CAG launches the first of several packages of works to put in place the three-runway system. The works include pavement works, drainage works, security fencing and perimeter roads, mechanical and electrical works, as well as supporting works, such as major services and road diversions.
2018: CAG announces the appointment of the Master Building Consultants, comprising three teams that will provide architectural design and engineering consultancy services for the development of T5. Master Civil Consultants are also appointed; they will provide consultancy services for the design of infrastructure at the landside and airside areas outside of the T5 buildings.
Early 2020s: Operationalisation of the three-runway system.
About 2030: Completion of the initial phase of T5 and the Changi East Industrial Zone.