Dholera Air Funnel Zones: Building Height Restrictions
AAI

Overview
Every plot within 20 km of the Dholera International Airport's Aerodrome Reference Point falls under an AAI-regulated airspace layer. This is the Dholera Airport height restriction zone land buying check that almost no broker explains upfront. The airport, currently under construction near Navagam village in Dholera taluka, Ahmedabad district, is being developed by Dholera International Airport Company Limited (DIACL) across a 1,426-hectare site. Under the Ministry of Civil Aviation (Height Restrictions for Safeguarding of Aircraft Operations) Rules, 2015, every structure in the zone requires a verified height clearance.
Why the Dholera Airport CCZM Creates a Silent Height Cap Over TP1 and TP2 Plots
Dholera is unique among Indian real estate markets. Buyers are checking TP scheme approvals, NA status, and DSIRDA sanctions, which is correct. What almost none of them are checking is whether their DSIRDA-approved plot also falls inside the AAI air funnel zone, which imposes a completely separate, legally senior height cap that DSIRDA itself cannot override.
Under the MoCA 2015 Rules, AAI issues Color Coded Zoning Maps (CCZM) covering all areas within 20 km of an airport's Aerodrome Reference Point. The CCZM assigns each grid a permissible top elevation measured in meters above mean sea level (AMSL). The maximum permissible height for any structure is calculated as the CCZM permitted top elevation minus the site elevation. Dholera's terrain sits at roughly 10 to 15 meters AMSL, meaning the effective building height ceiling is considerably tighter than buyers assume when they read only the DSIRDA General Development Control Regulations (GDCR). The table below shows the standard AAI CCZM height bands relevant to an under-construction greenfield airport.
Red / Inner
Typical Distance from ARP
Immediately adjacent (0–1 km)
Max Permissible Height (AMSL)
Highly restricted
AAI NOC Required?
Yes, mandatory clearance
Grey
Typical Distance from ARP
1–3 km
Max Permissible Height (AMSL)
Up to 77 m AMSL
AAI NOC Required?
Yes, AAI NOC
Yellow
Typical Distance from ARP
3–6 km
Max Permissible Height (AMSL)
Up to 95 m AMSL
AAI NOC Required?
Yes, AAI NOC
Pink
Typical Distance from ARP
6–10 km
Max Permissible Height (AMSL)
Up to 115 m AMSL
AAI NOC Required?
Yes, AAI NOC
Green
Typical Distance from ARP
10–15 km
Max Permissible Height (AMSL)
Up to 135 m AMSL
AAI NOC Required?
Yes, AAI NOC
Blue
Typical Distance from ARP
15–20 km
Max Permissible Height (AMSL)
Up to 155 m AMSL
AAI NOC Required?
Yes, AAI NOC
Zone
Typical Distance from ARP
Max Permissible Height (AMSL)
AAI NOC Required?
Red / Inner
Immediately adjacent (0–1 km)
Highly restricted
Yes, mandatory clearance
Grey
1–3 km
Up to 77 m AMSL
Yes, AAI NOC
Yellow
3–6 km
Up to 95 m AMSL
Yes, AAI NOC
Pink
6–10 km
Up to 115 m AMSL
Yes, AAI NOC
Green
10–15 km
Up to 135 m AMSL
Yes, AAI NOC
Blue
15–20 km
Up to 155 m AMSL
Yes, AAI NOC
The critical trap: AAI's rules apply from the date the airport is technically cleared, not from the date operations begin. Dholera received site clearance in July 2014 and environmental ministry approval in December 2015. The CCZM obligation has therefore been active for years, covering plots that sellers routinely market as unrestricted. If a developer cannot show you a NOCAS-generated height clearance letter alongside the DSIRDA NOC, the project has not completed its full legal stack.
Navagam, Kamiyala and the Airport Influence Corridor: Where Dholera Airport Zone Rules Bite Hardest
Dholera's planned residential development is concentrated in TP1 and TP2 town planning schemes, primarily in the activation area and surrounding villages, including Kamiyala and areas flanking the Ahmedabad-Dholera Expressway. The airport site at Navagam sits at coordinates 22°35′22″N 72°28′06″E. The 20 km AAI influence radius from that ARP directly overlaps with all of TP1, TP2, and the corridors most aggressively marketed as residential investment zones.
The table below maps sourced Dholera locality data against airport zone exposure.
Navagam (airport site)
Zone Position
Immediately adjacent
Growth Driver
DIACL airport infrastructure; 75 ha commercial allocation
Key Risk for Buyers
Red/Grey zone: near-zero buildable height for private structures
Kamiyala
Zone Position
Within 5–8 km of ARP
Growth Driver
Proximity to DSIR Activation Area; expressway access
Key Risk for Buyers
Yellow–Pink zone; NOCAS clearance mandatory before any building permission
TP2 Activation Area (near ABCD Building)
Zone Position
10–15 km from ARP
Growth Driver
DSIRDA-serviced plots; metro alignment; Tata Semiconductor proximity
Key Risk for Buyers
Green zone: height clearance via NOCAS; AMSL calculation is critical
TP1 Expansion Zone (outer SIR boundary)
Zone Position
15–20 km from ARP
Growth Driver
Affordable entry pricing; next-phase development
Key Risk for Buyers
Blue zone; NOC required for structures above 155 m AMSL; standard NOCAS check sufficient
Corridor / Locality
Zone Position
Growth Driver
Key Risk for Buyers
Navagam (airport site)
Immediately adjacent
DIACL airport infrastructure; 75 ha commercial allocation
Red/Grey zone: near-zero buildable height for private structures
Kamiyala
Within 5–8 km of ARP
Proximity to DSIR Activation Area; expressway access
Yellow–Pink zone; NOCAS clearance mandatory before any building permission
TP2 Activation Area (near ABCD Building)
10–15 km from ARP
DSIRDA-serviced plots; metro alignment; Tata Semiconductor proximity
Green zone: height clearance via NOCAS; AMSL calculation is critical
TP1 Expansion Zone (outer SIR boundary)
15–20 km from ARP
Affordable entry pricing; next-phase development
Blue zone; NOC required for structures above 155 m AMSL; standard NOCAS check sufficient
The most misread situation in Dholera involves plots marketed as "airport proximity" investments inside TP2 that sit in Green or Yellow zones. Sellers use airport adjacency as a price driver, while simultaneously ignoring that the same adjacency imposes AAI height restrictions that DSIRDA approvals alone cannot resolve. A plot with full DSIRDA, NA, and RERA clearances but no NOCAS height clearance is incomplete. Construction on that plot cannot legally begin until the AAI clearance is in hand.
Frequently Asked Questions
What is the height restriction zone around Dholera airport?
Covers all land within 20 km of the ARP at Navagam. AAI's CCZM assigns each grid a permissible top elevation in AMSL minus your plot's verified site elevation.
Do I need an AAI NOC to buy or build near Dholera International Airport?
No NOC needed to purchase land. But construction requires an AAI NOC via NOCAS before DSIRDA issues building permission, regardless of your TP scheme approval status.
What is the CCZM for Dholera Airport, and how do I access it?
Published by AAI and accessible at nocas2.aai.aero. Enter your WGS-84 plot coordinates to find your zone color and permissible top elevation. Applies from the technical clearance date, not the airport opening.
How do I check if my Dholera plot falls inside the air funnel zone?
Log on to NOCAS, enter WGS-84 coordinates, and input the licensed surveyor-certified site elevation. Plots above 300 sq m need all four corners. The system returns your zone color and NOC requirement.
What documents do I need to buy a plot in Dholera SIR near the airport?
DSIRDA layer: NA order, NOC, TP approval, title deed, and 7/12 extract. Airport layer: NOCAS height clearance letter. Both stacks are independent; missing either means an incomplete legal transaction.
Can I build a house near Dholera airport in an approved TP zone?
Yes, but two approvals are mandatory: DSIRDA construction permission under GDCR and an AAI NOC confirming your height doesn't breach the CCZM permissible top elevation. Proceeding with only one is a violation.
What is NOCAS, and how do I apply for height clearance near Dholera Airport?
AAI's online NOC portal at nocas2.aai.aero. Submit WGS-84 coordinates, surveyor-certified site elevation, and building plans. Processing takes three weeks. An approved NOC is valid for eight years.
What is the difference between the Dholera SIR TP zone and the AAI airport funnel zone?
TP zones regulate land use, FAR, and setbacks under the Gujarat SIR Act. AAI funnel zones regulate absolute building height in AMSL under central aviation law. Both must be satisfied independently before construction.
Disclaimer
Data Source & Verification
Source
Official Airports Authority of India (AAI) / Directorate General of Civil Aviation (DGCA) documents
Official Website
aai.aero
Coordinate Reference System
EPSG:4326 (WGS 84)
Geometry Type
Polygon / MultiPolygon
Data Format
Raster Tiles (from GeoTIFF)
Last Verified
2026
Status
Active
