The decision to build T4 was first announced on 1 March 2012.
T4 is built on a plot of land that was originally occupied by the Budget Terminal, which was demolished on 25 September 2012 to make way for a new, larger, full-service passenger building (T4) that will cater to Changi Airport's growing traffic.
T4 will serve both full-service and low cost carriers, and have an annual passenger movement capacity of 16 million. This would bring Changi Airport's total passenger capacity to 82 million per annum.
The groundbreaking ceremony on 5 November 2013 offered a glimpse into what the terminal would offer to passengers – apart from delivering Changi’s signature premium airport experience, T4 will also see the extensive roll-out of a suite of fast and seamless travel (FAST) initiatives.
This self-service process of check-in, bag-drop, departure immigration as well as boarding at T4 will be automated, making it both seamless and efficient.
On 30 April 2014, Cathay Pacific was announced as the first airline to operate from T4, when it opens in 2017.
In just under three years, construction of the new terminal was completed in December 2016.
The speed at which T4 was built was achieved through new construction methods which used pre-cast and off-site fabricated building components.
T4 is a flagship terminal for innovation, new technology and new operations concepts. Passengers can continue to look forward to the facilities, amenities, dining and F&B offerings that they expect from Changi Airport. At the same time, there are improvements to productivity and operational efficiency with the increased use of automation and streamlined work processes.