The expansion of Tengah Air Base (TAB) will allow MINDEF to build infrastructure and facilities to house aircraft assets, operational flying and support squadrons and other facilities that will be relocated from Paya Lebar Air Base (PLAB). There will also be a new runway built in the expanded TAB to meet the Republic of Singapore Air Force (RSAF)'s operational requirements.

The relocation of PLAB will free up 800 ha of prime land in the north-east region. Overall, there will be net land savings from the relocation of PLAB to TAB and Changi Air Base.