The second airport in Chennai coming up at Parandur in Tamil Nadu will be built in four phases. The total cost of the entire project will be Rs 32,704.92 crore, with Rs 10,307.3 crore to be spent to build the passenger terminals. The construction of the first phase will begin in January 2026 and end by December 2028 and following this, the other phases will be subsequently taken up, with the final phase to be completed by December 2046.

The airport will have three terminals with terminal1 spanning 3,45,758 sq. mtrs., terminal 2 spread over 4,76,915 sq. mtrs., and terminal 3 covering 5,05,495 sq. mtrs. The cargo terminal and the truck docking area together will be 2,30,500 sq. mtrs. and the Parandur airport will have two parallel runways (4040X45 mtrs.). Spread over 5,368.93 acres, a second airport at Parandur has been proposed as the present airport at Meenambakkam is getting saturated.

The hydrogeological report is being prepared by Tamil Nadu Industrial Development Corporation (TIDCO) to take mitigation measures to prevent environmental issues.

Approach roads are to be built to connect the site with Bengaluru-Chennai Expressway. The government of Tamil Nadu has conceived a new six-lane Airport Link Road for connection between the airport and the existing Bengaluru-Chennai NH-48. This link road is expected to originate at the proposed Airport Expressway (NE-7) drop junction (near the project site) and intersect the existing NH-48 near Attuputhur. The alignment of the link road is yet to be finalised.