The Government of Maharashtra vide notification dated 07th August, 2019 has sanctioned the Zonal Master Plan for Matheran Eco-Sensitive Zone (Part of Regional Plan for MMR). Further the Government of Maharashtra vide notification dated 20th April, 2021 has accorded sanction to the Final Regional Plan, for the remaining region under section 15(1) of the Maharashtra Regional & Town Planning Act, 1966. The Final Regional Plan for MMR came into force on 19th April, 2021.

Significant Proposals in the Final Regional Plan are as follows:-

1. To develop Growth Centres for balanced development of the region
2. To develop Local Growth Centers for development of rural area in the region.
3. To prepare Detailed Planning Proposals/Zone Plans for Urbanisable Zone
4. To prepare Detailed Planning Proposals/Zone Plans for Suburban Railway Station Area.
5. To prepare Detailed Planning Proposals/Zone Plans for Important Places from tourism point of view
6. To establish Regional Information system (RIS) for ideal Planning and active research.

The Government by the notification dated 09th September, 2019 has extended area of Mumbai Metropolitan Region by including remaining part of Vasai & complete Palghar tehsil from Palghar District as well as remaining part of Alibag, Pen, Panvel and Khalapur tehsil from Raigad District. Approximately 2,016 sq. km. area is added to Mumbai Metropolitan Region and the total area is now 6,328 sq. km. area.