Singapore's prime minister Lee Hsien Loong has committed to building a fifth terminal at Changi airport and closing Paya Lebar air base in a speech made on 18 August.
The new Terminal 5 will be built by the mid-2020s and will double the airport's handling capacity, Lee said. Earlier this year, the inter-agency Changi 2036 Steering Committee recommended that the existing military runway at Changi be converted to commercial use.
A new airbase will also be built, together with a fourth runway at Changi East. The new airbase will replace Paya Lebar, located in the east of Singapore, which will be decommissioned and redeveloped into a residential area.
Singapore's transport minister, Lui Tuck Yew said previously that more details on Terminal 5 will be released at the end of this year as part of Changi airport's long-term master plan.
Changi airport has also announced that a carpark located between Terminal 1 and the airport's control tower will be redeveloped into a multi-use complex that will connect Terminals 1, 2 and 3.
Titled 'Project Jewel', Terminal 1 will be expanded to allow more space for the arrival hall, baggage claim areas and taxi bays. This will raise its handling capacity to 24 million passengers annually. It has, however, yet to release details on when construction will commence or the scheduled date of completion for the project.
The airport will also start construction of the new Terminal 4 by the end of 2013 and is scheduled for completion in 2017. The terminal, which is being built on the site of the old Budget Terminal, will have a planned capacity of 16 million passengers per year.
Upon the completion of Project Jewel and Terminal 4, Changi's annual handling capacity will rise to 85 million passengers.