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Plans for a new greenfield airport for the Chennai Metropolitan Area was put forward as early as in 1998. In 2007, the Chief Minister of Tamil Nadu announced that the new airport would be set up in 4,820 acres (1,950 ha) land near Sriperumbudur. As the new airport was delayed due to land acquisition problems, an expansion plan was unveiled to expand the existing Chennai International Airport in 2018 to increase the terminal area to 160,000 m (1,700,000 sq ft) with a capacity of 35 million passengers. The existing airport is expected to reach saturation by 2035. The Government of Tamil Nadu initially proposed alternate locations such as Mamandur for the airport, but the project was not started.
In 2022, the state government announced renewed plans to build a new airport. The state government identified Padalam, Thiruporur, Pannur and Parandur as the possible sites for the airport. After a feasibility study, the Airports Authority of India shortlisted Parandur and Pannur as the sites for the proposed airport. In August 2022, the Government of Tamil Nadu selected Parandur in Kanchipuram district as location for the new airport on 4,970 acres (2,010 ha) of land. The planned airport would be spread over 13 villages, and farmlands. The proposed land acquisition for the airport has led to protests by the local villagers due to the fear of loss of livelihood.
Connectivity
In 2022, the state government proposed an extension for the planned Orange Line of the Chennai Metro from Poonamallee to Parandur at a cost of ₹107.12 billion (US$1.3 billion). In August 2024, another new extension from the Airport metro to Poonamallee was proposed by CMRL with the aim of connecting the existing airport with the new airport with the old airport by metro.
