Mumbai Airport’s T1 to Close for Redevelopment in 2025, New Terminal Set for 2028
Mumbai International Airport (CSMIA) has announced the upcoming closure of its Terminal 1 (T1) in November 2025 for a major redevelopment, marking a transformative shift in the city’s aviation landscape. The closure is part of an ambitious project to modernise the domestic terminal, which will be redeveloped with a focus on sustainability and passenger convenience. During the redevelopment, air traffic traditionally handled by T1 will be redistributed between Mumbai’s T2 (International Terminal) and the soon-to-open Navi Mumbai International Airport, expected to start operations in May 2025.
The decision to close T1 for redevelopment stems from the airport’s need to modernise and expand its capacity. The redevelopment is projected to take place in carefully planned phases to minimise disruption, with T2 and Navi Mumbai Airport handling the added load. The new T1 is set to accommodate 20 million passengers annually, marking a 42% increase in capacity from the existing terminal. With T1’s redevelopment expected to be completed between 2028 and 2029, the new terminal will set a new standard for airport infrastructure in India.
Jeet Adani, Director of Adani Airport Holdings Limited, expressed his commitment to a seamless transition, stating, “This redevelopment is not only about expanding capacity but also about future-proofing Mumbai’s place as a global aviation hub. Our focus is to maintain the highest standards of service and passenger experience throughout this transition.” The statement reflected the careful planning and stakeholder collaboration required to manage such a significant shift in the city’s aviation infrastructure.
The revamped T1 will be designed as India’s first brownfield, biophilic, and sustainable airport terminal. With a built-up area of over two million square feet, the new terminal will feature cutting-edge technologies aimed at enhancing passenger convenience, reducing carbon footprints, and promoting eco-friendly practices. The phased construction will ensure continued operations during the redevelopment, with disruptions kept to a minimum. Additionally, the terminal will integrate various digitisation features, providing an enhanced, seamless travel experience for passengers.
Sustainability and Innovation at the Core of Mumbai’s New T1
The redevelopment of Terminal 1 underscores Mumbai’s growing commitment to sustainability and innovation in the aviation sector. The new T1 aims to become a global benchmark for eco-conscious airport design, blending modern infrastructure with biophilic elements to enhance both passenger experience and environmental sustainability. As the world increasingly focuses on climate-conscious urban development, Mumbai’s airport is positioning itself to lead the way in adopting green technologies and infrastructure practices.
This redevelopment comes at a crucial time when cities around the world are striving to balance rapid urban growth with environmental stewardship. By integrating biophilic design, which incorporates natural elements into the built environment, Mumbai’s new T1 will offer passengers a tranquil, sustainable space that reflects the city’s efforts to reduce its ecological impact. This forward-thinking approach not only prioritises the well-being of passengers but also ensures that the airport contributes positively to the city’s long-term sustainability goals.
In conclusion, while the closure of T1 in 2025 might cause some short-term inconvenience for travellers, the redevelopment promises to usher in a new era of modern, sustainable, and passenger-centric air travel. With the combined efforts of Mumbai’s existing T2, the soon-to-open Navi Mumbai Airport, and the newly redeveloped T1, the region is set to enhance its position as a global aviation hub, meeting the demands of the future while prioritising environmental sustainability.