Kerala CRZ
Kerala Coastal Zone Management Authority
Overview
The Kerala CRZ layer plots the Coastal Regulation Zone footprint along Kerala's 580 km coastline and the connected backwater system, governed by CRZ Notification 2019 (G.S.R. 37(E)) with amendments up to 24 November 2022. The Kerala Coastal Zone Management Authority (KCZMA), under the Department of Environment and Climate Change, is the regulatory body. The 2019 CZMPs for 10 coastal districts have been approved, reducing total NDZ area in Kerala from 239.431 sq km under CRZ 2011 to 108.397 sq km. This page shows what falls inside CRZ-I, II, III A, III B, and IV across Thiruvananthapuram to Kasaragod.
Regulatory Red Flags After the Maradu Demolition
Kerala is the only state in India where the Supreme Court has actually ordered apartment demolitions for CRZ violations. The Maradu CRZ violation case (Supreme Court order 8 May 2019) ended with four occupied apartment complexes in Kochi imploded on 11-12 January 2020. The court rejected the builders' argument that the area was CRZ-II under the draft 2011 CZMP, holding that the 1996 KCZMP classifying Maradu as CRZ-III was the operative plan when permits were issued.
The fact-pack on what each zone permits in Kerala, drawn from CRZ Notification 2019 and the 1996/2019 CZMPs.
CRZ-I A
Permitted Use
Mangroves, sand dunes, turtle nesting, Vembanad CVCA
Requires CRZ Clearance?
No new construction; only utility
Prohibited Without?
Any building
Commonly Misrepresented?
Sold as "lakefront resort plots"
CRZ-I B
Permitted Use
Inter-tidal between LTL and High Tide Line
Requires CRZ Clearance?
Salt works, pipelines only
Prohibited Without?
Houses, resorts
Commonly Misrepresented?
Marketed as "beachfront"
CRZ-II
Permitted Use
Built-up urban municipal areas (66 panchayats added in 2019 CZMP)
Requires CRZ Clearance?
Yes, on landward side
Prohibited Without?
Construction on seaward side
Commonly Misrepresented?
Confused with CRZ-III rural
CRZ-III A
Permitted Use
Densely populated rural; NDZ 50 m from HTL (37 panchayats in Kerala)
Requires CRZ Clearance?
Beyond NDZ only
Prohibited Without?
Construction inside 50 m
Commonly Misrepresented?
Quoted as "approved layout"
CRZ-III B
Permitted Use
Sparse rural; NDZ 200 m from HTL
Requires CRZ Clearance?
Beyond NDZ only
Prohibited Without?
Anything inside 200 m
Commonly Misrepresented?
Sold without disclosure
CRZ Backwater Islands
Permitted Use
HTL to 20 m landward
Requires CRZ Clearance?
Limited dwellings only
Prohibited Without?
Resorts, multi-storey
Commonly Misrepresented?
Sold as "private island plots"
CRZ-IV B
Permitted Use
Backwaters and tidal water bodies
Requires CRZ Clearance?
Fishing only
Prohibited Without?
Reclamation, dwellings
Commonly Misrepresented?
Sold as "houseboat plots"
Zone Code
Permitted Use
Requires CRZ Clearance?
Prohibited Without?
Commonly Misrepresented?
CRZ-I A
Mangroves, sand dunes, turtle nesting, Vembanad CVCA
No new construction; only utility
Any building
Sold as "lakefront resort plots"
CRZ-I B
Inter-tidal between LTL and High Tide Line
Salt works, pipelines only
Houses, resorts
Marketed as "beachfront"
CRZ-II
Built-up urban municipal areas (66 panchayats added in 2019 CZMP)
Yes, on landward side
Construction on seaward side
Confused with CRZ-III rural
CRZ-III A
Densely populated rural; NDZ 50 m from HTL (37 panchayats in Kerala)
Beyond NDZ only
Construction inside 50 m
Quoted as "approved layout"
CRZ-III B
Sparse rural; NDZ 200 m from HTL
Beyond NDZ only
Anything inside 200 m
Sold without disclosure
CRZ Backwater Islands
HTL to 20 m landward
Limited dwellings only
Resorts, multi-storey
Sold as "private island plots"
CRZ-IV B
Backwaters and tidal water bodies
Fishing only
Reclamation, dwellings
Sold as "houseboat plots"
If a builder shows you a panchayat permit but no KCZMA recommendation, treat it the way the Supreme Court treated Maradu: void from the start. The 1996 KCZMP remained operative for clearance decisions until the 2019 plans were notified, and many disputed parcels still get adjudicated against the older map. The No Development Zone (NDZ) stacks on top of any local Town and Country Planning approval.
Growth Corridors Around Kochi, Vembanad and the Malabar Coast
Kerala's coastal property market splits into three personalities. The Kochi-Ernakulam axis is mostly CRZ-II urban with selective backwater CRZ-IV B exposure. The Vembanad backwaters Kochi to Alappuzha stretch is a Critical Vulnerable Coastal Area (CVCA) with the strictest restrictions. The Malabar coast (Kozhikode, Kannur, Kasaragod) is mixed CRZ-III A and III B, where the CZMP 2019 Kerala has reclassified 37 panchayats from CRZ-III B to III A, reducing NDZ from 200 m to 50 m.
The corridors most asked about, mapped against CRZ classification under the 2019 CZMP.
Maradu, Kochi (Chilavannoor lake)
Zone (Kerala CZMP 2019)
CRZ-II under 2019; CRZ-III in 1996 plan
Growth Driver
Urban redevelopment
Known Risk
Pre-2019 permits still litigable
Marine Drive, Kochi
Zone (Kerala CZMP 2019)
CRZ-II + CRZ-IV B
Growth Driver
Premium waterfront
Known Risk
Reclamation history scrutinised
Vembanad lake, Alappuzha
Zone (Kerala CZMP 2019)
CVCA + CRZ-I A
Growth Driver
Houseboat tourism
Known Risk
Blanket restriction; private builds blocked
Kovalam, Thiruvananthapuram
Zone (Kerala CZMP 2019)
CRZ-III mix
Growth Driver
Tourism, leisure
Known Risk
NDZ enforced; Hazard line marked
Bekal, Kasaragod
Zone (Kerala CZMP 2019)
CRZ-III + CRZ-I sand dunes
Growth Driver
BTDC tourism push, fort
Known Risk
Dune buffer locks parcels
Kannur airport ribbon
Zone (Kerala CZMP 2019)
CRZ-III B fringe
Growth Driver
Connectivity, NRI demand
Known Risk
Fringe parcels misquoted as "outside CRZ"
Backwater islands (Kumarakom, Vypin)
Zone (Kerala CZMP 2019)
20 m CRZ from HTL
Growth Driver
Resort, second home market
Known Risk
20 m island rule; no relaxation
Corridor / Locality
Zone (Kerala CZMP 2019)
Growth Driver
Known Risk
Maradu, Kochi (Chilavannoor lake)
CRZ-II under 2019; CRZ-III in 1996 plan
Urban redevelopment
Pre-2019 permits still litigable
Marine Drive, Kochi
CRZ-II + CRZ-IV B
Premium waterfront
Reclamation history scrutinised
Vembanad lake, Alappuzha
CVCA + CRZ-I A
Houseboat tourism
Blanket restriction; private builds blocked
Kovalam, Thiruvananthapuram
CRZ-III mix
Tourism, leisure
NDZ enforced; Hazard line marked
Bekal, Kasaragod
CRZ-III + CRZ-I sand dunes
BTDC tourism push, fort
Dune buffer locks parcels
Kannur airport ribbon
CRZ-III B fringe
Connectivity, NRI demand
Fringe parcels misquoted as "outside CRZ"
Backwater islands (Kumarakom, Vypin)
20 m CRZ from HTL
Resort, second home market
20 m island rule; no relaxation
The most misunderstood corridor is the Vembanad backwater belt. Buyers see houseboats and tourism activity and assume resorts are unlocked. Vembanad is a Critical Vulnerable Coastal Area listed in CRZ Notification 2019 itself, with CRZ-I A status across mangrove and Pokkali stretches. Private resort approvals here face both KCZMA clearance and CVCA-specific restrictions, and post-Maradu the courts treat panchayat permits in this belt with deep suspicion.
Frequently Asked Questions
What is Kerala CRZ and how does it apply to my plot?
Kerala CRZ** covers the entire 580 km coastline within 500 metres of HTL, plus 50 metres along tidal creeks and 20 metres along backwater islands. It is governed by CRZ Notification 2019 and the state CZMP under KCZMA, with the 1996 plan still relevant for pre-2019 disputes.
How do I check if my plot in Kerala falls under CRZ?
Match your survey number against the approved 2019 CZMP map on the KCZMA portal. The plot will read CRZ-I, II, III A, III B, IV, or backwater island. The 2019 CZMP for 10 districts has been approved; cross-check with the older 1996 plan if your purchase predates that.
Can I build a house near a Kerala beach or backwater?
Yes, but only beyond the NDZ in CRZ-III, on the landward side of existing roads in CRZ-II, and never within 20 m of a backwater island's HTL. KCZMA clearance is mandatory regardless of panchayat or municipal permits, as the Maradu demolition confirmed.
What is the No Development Zone for Kerala CRZ-III?
NDZ in CRZ-III A and CRZ-III B depends on Census 2011 density. CRZ-III A (37 Kerala panchayats above 2,161 per sq km) gets 50 m. CRZ-III B gets 200 m. Along tidal water bodies, NDZ is 50 m or creek width, whichever is less.
Who gives CRZ clearance in Kerala?
KCZMA recommends clearance for CRZ-II and CRZ-III projects through the Parivesh portal under MoEFCC F.No. IA3-12/1/2022-IA.III dated 29.11.2022. Local Self Government Institutes handle initial verification. CRZ-I and CRZ-IV proposals require MoEFCC clearance at the Centre.
What happened in the Maradu flats case?
The Supreme Court ordered demolition of five Kochi apartment complexes on 8 May 2019 for building permits issued by Maradu panchayat without KCZMA approval in CRZ-III. Four buildings were imploded on 11-12 January 2020. Owners later got refunds without interest.
Are backwater islands in Kerala under CRZ?
Yes. CRZ on coastal and backwater islands extends from the High Tide Line to 20 metres landward, applied uniformly under CRZ Notification 2019. Vypin, Kumarakom, and other backwater islands fall under this rule, and the 20 m setback applies regardless of how the local panchayat classifies the area.
Does the new CZMP 2019 reduce the NDZ in Kerala?
Yes. Total NDZ area in Kerala dropped from 239.431 sq km under CRZ 2011 to 108.397 sq km under the 2019 CZMP. 37 village panchayats moved from 200 m NDZ to 50 m NDZ as CRZ-III A, and 66 panchayats were brought into CRZ-II.
Disclaimer
Data Source & Verification
Source
Official Kerala Coastal Zone Management Authority documents
Official Website
kcza.kerala.gov.in
Coordinate Reference System
EPSG:4326 (WGS 84)
Geometry Type
Polygon / MultiPolygon
Data Format
Vector (GeoJSON) + Raster Tiles
Last Verified
2026
Status
Active