Terminal 3 is recognisable from its expansive rectilinear roof, which is a unique horizontal stroke right from the dramatic cantilever over the kerbside, across the Main Departure and Arrival Halls to the aircraft-apron on the other side. Its underlying complexity lies in its details, which are derived from the layering of ceiling panels, baffles, skylights and high-tech 'butterflies', creating a random aperture pattern build-up that evokes a rainforest canopy.

The natural luminance of the interior spaces is enhanced by the patterns and textures of the floor and feature wall surfaces. It is a space that not only offers the latest in airport facilities, but also a new experience for passengers.

Mechanical & Electrical Engineering Engineering (M&E)
The Mechanical & Engineering design strategy is predicated on the reduction of energy use for this round-the-clock facility. Extensive daylighting minimises the daytime use of artificial lighting, and also results in decreased cooling load. In its high-volume spaces, the air-conditioning is thermally stratified while airlocks check cooled-air loss. The intelligent building management system is interfaced with the flight schedule, controlling the switching on of lights and air-conditioning in the dedicated gate-hold rooms, just before they open for passenger waiting. Sensors were also provided for the control of toilet lights and to run escalators and moving sidewalks only when in use.