# CMDA Third Master Plan 2036: What Chennai Property Buyers Must Know The Chennai Metropolitan Development Authority (CMDA) has released the framework for its Third Master Plan, covering the Chennai Metropolitan Area (CMA) through 2036. For property buyers, investors, and developers, this plan is one of the most consequential policy documents in the city's recent history — it determines where you can build, how tall, and with what density. Here is what the Third Master Plan means for real estate buyers right now. ## What Is the CMDA Master Plan? The Master Plan is the legal land-use blueprint for the entire Chennai Metropolitan Area — a 1,189 sq km zone covering Chennai city, Kancheepuram and Tiruvallur districts. It divides all land into use zones (residential, commercial, industrial, green/no-development) and sets Floor Space Index (FSI) rules for each zone. The Second Master Plan (2026) is now being superseded by the Third Master Plan targeting 2036. The transition period is critical — projects approved under the old plan retain their entitlements, but new approvals will follow the revised framework. ## Key Changes in the Third Master Plan ### 1. Expanded CMA Boundary CMDA is expanding the CMA boundary to include outer panchayat areas along OMR South (Mahabalipuram corridor), GST Road (Chengalpattu direction), and the NH-16 (Chennai-Kolkata Highway) belt. This means previously rural land in Maraimalai Nagar, Singaperumal Koil, and Thiruporur is now within CMDA's planning jurisdiction — unlocking development potential. **What this means for buyers:** Land prices in newly included panchayat zones typically appreciate 15-25% within 24 months of CMA inclusion. Early buyers in Thiruporur and Maraimalai Nagar are positioned well. ### 2. Revised FSI Norms for Key Corridors The Third Master Plan introduces **Transit-Oriented Development (TOD) zones** around confirmed CMRL (Chennai Metro) stations with enhanced FSI of 3.5 (up from 2.0 under the old plan). This corridor-based FSI applies within 500 metres of metro stations on the Phase 2 alignment. TOD-zone localities with confirmed metro stations: - Pallavaram (CMRL Phase 2 — South Corridor) - Poonamallee (CMRL Phase 2 — West Corridor) - Kellys / Kilpauk (CMRL Phase 2 — Central) - Sholinganallur (CMRL Phase 3 — proposed) Higher FSI means builders can construct more floors, which translates to more affordable per-unit prices over time. For buyers, buying near a confirmed TOD zone now — before the FSI is fully utilised — locks in pre-premium prices. ### 3. Green Zone Tightening on OMR South The Third Master Plan classifies significant stretches of OMR south of Siruseri (Maraimalai Nagar onward) as **No-Development Zone / Eco-Sensitive Buffer**. This prevents any new residential approvals in these stretches, capping supply. **Impact:** Existing approved projects in this belt (already TNRERA-registered) retain validity but no new inventory will be approved. This supply cap will push prices up for the limited RERA-cleared inventory already available. ### 4. Mixed-Use Zoning in Old Chennai Localities Areas like Royapettah, Kilpauk, Chetpet, and Nungambakkam are being reclassified from pure residential to **Mixed Use Residential Commercial (MRC)** zones. This allows ground-floor commercial use and increases FSI for residential floors above. Developers are already planning premium boutique developments in these zones. ## What Buyers Should Do Right Now 1. **Shortlist properties in TOD zones**: Pallavaram, Poonamallee, and Kellys will benefit from enhanced FSI and improved connectivity. [Browse verified listings near metro corridors on Propspedia](https://propspedia.in/properties?city=CHENNAI). 2. **Avoid Green Zone land purchases**: Before purchasing a plot or land in OMR south, verify the Third Master Plan zoning status with CMDA directly or check TNRERA registration — unregistered land plots in green zones carry serious risk. 3. **Check builder approvals date**: Projects approved under the Second Master Plan before the Third Plan notification carry legacy entitlements. TNRERA-registered projects have already cleared local planning authority approval under the prevailing plan. 4. **Track Expanded CMA villages**: If you are buying land near Thiruporur or Maraimalai Nagar, the expanded boundary means planning rules will be enforced more strictly — but also that infrastructure investment will follow. ## Propspedia and CMDA Compliance Every property listed on Propspedia carries a TNRERA registration number. TNRERA verification is your first line of protection — it means the project has been approved by the local planning authority (CMDA for CMA projects, DTCP for areas outside CMA) under the applicable Master Plan. [Filter RERA-verified Chennai properties on Propspedia](https://propspedia.in/properties?city=CHENNAI&reraVerified=true) ## FAQ **Q: Does the Third Master Plan affect properties already under construction?** A: No. Projects with valid TNRERA registration and local body approval are protected by the planning rules applicable at the time of approval. The new Master Plan affects new approvals only. **Q: How do I check what zone my potential plot falls under?** A: CMDA's online portal (cmda.gov.in) provides land-use zone maps. You can also file an RTI or approach CMDA's public relation officer for a Land Use Certificate (LUC). **Q: Will TOD zone FSI changes lower flat prices near metro stations?** A: Not immediately. Higher FSI allows more supply, which limits price increases over a 5-7 year window. In the near term (2-3 years), metro proximity still commands a 10-20% premium. Ready to find a verified property in Chennai's growth corridors? [Search on Propspedia](https://propspedia.in/properties?city=CHENNAI).