All you need to know about CMDA Vs DTCP Approval

All you need to know about CMDA & DTCP Approval

A plot can either come under CMDA or DTCP and not both. It is just a matter of jurisdiction and there isn’t much difference in the approval process. CMDA approval is more stringent process wherein DTCP is easy and Compared to DTCP approved plots CMDA approved plots have high future price appreciation. A lot of locations which was once under DTCP has now come under CMDA as the Chennai city is now expanding gradually. Also, most of the CMDA plots seems to have high price appreciation than the DTCP ones since it doesn’t count under the city limits. However, CMDA is better funded and provides a detailed layout for the future than the DTCP approved layouts.


One important factor everyone should be aware is that the CMDA approves layouts within the CMA (Chennai Metropolitan Area) limits.  This is why the CMDA approved plots in Thirumazhisai is now expected to have high price appreciation than the OMR plots since most part of this location does not come under CMDA. What’s more? This is the main reason why buyers always prefer CMDA approved plots than DTCP approved ones.


Property approvals from Directorate of Town and Country Planning (DTCP) and Chennai Municipal Development Authority (CMDA) are extremely important for any builder to commence the construction of their project. The CMDA & DTCP are the nodal agencies, which are responsible for issuing approvals for the land layout in Tamil Nadu. The jurisdiction of CMDA is confined to only Chennai and its peripheral areas whereas DTCP jurisdiction is confined to all other parts of Tamil Nadu. Layout approvals up to 10 acres, i.e.; increased from 5 acres is accorded by the LPA – Local Planning Authority and a sub-committee of the DTCP.

Anyone fails to get these approvals can be sure that the project will get into trouble with legal issues.

 CMDA & DTCP will be explained separately here

Conditions for granting the layout approvals are the same wherein the CMDA is applicable only for the plots within Chennai city limits.

An NOC from the Tahsildar stating that it is not a poromboke land. It is not covered under Land Reforms Act of 1961, Land Ceiling Act of 1978, and that the plot/land/site will not be affected by natural calamity like flood during the monsoon.

  • The documents such has FMB/Town survey sketch, patta/chitta/town survey land records, ‘A’ register extract; village map copy, details of water flow through the gated community/site from the Tahsildar should be obtained.
  • A site plan ensuring 10% reservation for Open Space Reservation(OSR) land is a must for sites exceeding 2500 SQ.M
  • An undertaking should be produced for the realignment if any electric or telephone line passes through the project site.
  • An NOC from the concerned department is a mandatory if the project site lies within a distance of,
    • 15 metres from water bodies – PWD or concerned department
    • 30 metres from any railway line – Railways department
    • 90 metres from any compost yard – Local body
    • 90 metres from a burial ground or crematorium – Health Officer
    • 300 metres from any quarry – AD, Mines
    • 500 metres from a crusher – AD, Mines
    • 500 metres from an airport – Airport Authority of India


The Chennai Metropolitan Development Authority (CMDA) is a statutory body and is the nodal planning agency for the Chennai Metropolitan Area (CMA). The CMA covers an area of 1,189 including the Chennai Corporation, 7 Municipalities, 12 Town Panchayats and 179 villages in 10 Panchayat Unions. The CMDA has approval jurisdiction for the CMA.

It is necessary to understand the exact extent of the CMDA’s jurisdiction as there are numerous areas in “Chennai”, especially in the fast developing “IT Corridors” where the approving authority is the DTCP and not the CMDA. This is because these areas do not come under the CMA and consequently under the CMDA’s jurisdiction. Meanwhile, the most happening residential hub, Thirumazhisai plots comes under CMDA approval, meaning, the location is a part of the Chennai city limits.

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