The task of designing the future Terminal 4 at Changi Airport has been given to a consortium led by Singapore's SAA Architects.

The firm has done work locally and overseas on different projects including the Shanghai Ocean Aquarium. Its partners in the T4 project include global firm Benoy, The Straits Times understands. Benoy was involved in the designing of ION Orchard and Plaza Singapura.

It took about a year for Changi Airport Group to assess the five proposals it received, sources said. Actual plans and designs will be unveiled later.

T4 with a handling capacity of 16 million passengers a year will be built where the Budget Terminal was located. It will open by 2017 to cater to growing traffic at Changi Airport. Changi Airport Group is expected to issue a release Wednesday evening.