Design Cell to design open spaces at the Departure and Arrival level near the new Mumbai T2 terminal designed by SOM, New York.

In October 2006, MIAL unveiled the master plan for CSIA, which has been designed to expand and upgrade the infrastructure to cater for 40 million passengers per year and one million metric tonnes of cargo per year by 2010. The separate international and domestic terminals will be merged into one terminal building at the current international building and the current domestic terminal will be converted to a dedicated cargo terminal.

The implementation will be undertaken in two stages:
The Interim Phase is the implementation of several immediate measures. These were completed in 2008 and includes:
o Refurbishment and construction at Terminal 2
o Revamp of Terminal 1A to upgrade and expand facilities such as check-in counters and boarding bridges
o Setting-up of temporary cargo facilities to add capacity
o Upgrading of the airside runway facilities such as rapid exit taxiways to increase runway capacity to cater to traffic growth
o Enhancing city-side facilities such as multi-level car parks
Phase One (to be completed by 2010) includes:
o Creation of a brand new terminal building (T2) at Sahar catering to both international and domestic operations
o Construction of a dedicated link from the Western Express Highway to T2 at Sahar
o Enhancement of the airside facilities by shifting the air traffic control tower and construction of a parallel taxiway
o Development of infrastructure on the city-side
o Building new cargo facilities
o Construction of Terminal 1C

L&T ECCD have been awarded the contract to expand Terminal 1 and to construct a new international terminal. The brand new International Terminal T2 is being designed by Skidmore, Owings and Merrill (SOM). Design Cell has been appointed as Landscape Architects for the cityside open spaces at the departure and arrival level.