The Bareilly Air Funnel Zone covers the construction height restrictions radiating from Trishul Air Base in Izzatnagar, one of the Indian Air Force's largest airbases, which also hosts Bareilly Airport as a civil enclave operating under the Regional Connectivity Scheme. Every structure within 20 km of the Aerodrome Reference Point needs a No Objection Certificate under the Ministry of Civil Aviation's GSR 751(E) rules, and Bareilly's dual role as both an active defence installation and a fast-growing civilian gateway means two separate clearance processes can apply to the same plot. This page explains what each height surface actually permits, what Bareilly's specific history means for construction here, and which localities carry the tightest ceilings.
Trishul Air Base has never been an ordinary regional airfield. Established under Central Air Command in the mid-1960s, it has historically housed some of the IAF's most sensitive aircraft, including electronic warfare and reconnaissance squadrons, and it remains home to the 117 Helicopter Unit raised in 1971. Bareilly Airport, the public-facing civil enclave inaugurated in 2019 with commercial operations beginning in 2021 under the UDAN scheme, sits inside that same base rather than as a separate facility. That single-site arrangement is the key fact buyers need before assuming this is a straightforward civilian airport case.
Zone Type
Location
Height Cap
Requires
Commonly Misrepresented?
No-construction strip
Within 500 metres of the runway strip
No construction permitted at all
Not applicable, an absolute prohibition
Rarely, the restriction is usually visible on the ground
Inner Horizontal Surface
Up to 4 km from the Aerodrome Reference Point
Maximum 45 metres
AAI NOC for civilian construction, alongside Indian Air Force review given the base's defence status
Yes, plots near Izzatnagar are marketed without disclosing that both AAI and IAF review can apply
Outer Horizontal Surface
4 km to 15 km radius
Height increases 1 metre for every 20 metres of distance, capped at 300 metres
AAI NOC still mandatory at every distance
Sometimes assumed unrestricted once past 4 km, which is incorrect
Approach or Funnel Surface
Runway 11/29 approach and departure path, both ends
Height equals 2 percent of distance from the runway edge, a 1:50 slope
AAI NOC via NOCAS, with IAF clearance where the base's operational interests are directly affected
Yes, land under the direct flight path is sold as ordinary residential without disclosing the slope-based cap
Zone Type
Location
Height Cap
Requires
Commonly Misrepresented?
No-construction strip
Within 500 metres of the runway strip
No construction permitted at all
Not applicable, an absolute prohibition
Rarely, the restriction is usually visible on the ground
Inner Horizontal Surface
Up to 4 km from the Aerodrome Reference Point
Maximum 45 metres
AAI NOC for civilian construction, alongside Indian Air Force review given the base's defence status
Yes, plots near Izzatnagar are marketed without disclosing that both AAI and IAF review can apply
Outer Horizontal Surface
4 km to 15 km radius
Height increases 1 metre for every 20 metres of distance, capped at 300 metres
AAI NOC still mandatory at every distance
Sometimes assumed unrestricted once past 4 km, which is incorrect
Approach or Funnel Surface
Runway 11/29 approach and departure path, both ends
Height equals 2 percent of distance from the runway edge, a 1:50 slope
AAI NOC via NOCAS, with IAF clearance where the base's operational interests are directly affected
Yes, land under the direct flight path is sold as ordinary residential without disclosing the slope-based cap
Because Trishul is a joint civil-military site rather than two separate aerodromes, the practical effect for a buyer is not overlapping funnel zones from different bases, as seen elsewhere, but a single zone where two different authorities can each have a say on the same application.
AAI processes the routine civilian height clearance through NOCAS, but any construction proposal that touches on the base's operational or security interests can draw a parallel Air Force review, and that second layer does not run on a published civilian timeline.
The airport's own growth adds urgency to getting this right. Aircraft movements at Bareilly jumped 33.8 percent in the most recent reporting year, even as the passenger base remains modest at just over 121,000 annually.
That kind of rapid movement growth on a shared runway makes strict enforcement of the height envelope more likely going forward, not less, since a growing civil operation on a defence-run base tends to tighten obstacle clearance scrutiny rather than relax it.
Land around a single combined base still varies sharply by distance and position relative to the runway, even without a second aerodrome's zone to account for.
Corridor / Locality
Zone Status
Growth Driver
Known Risk
Izzatnagar, immediate Trishul Air Base vicinity
Inner Horizontal Surface and Funnel
Direct proximity to the civil enclave terminal, inside one of the IAF's largest airbases
The base's history hosting sensitive squadrons adds a defence-review dimension beyond ordinary civil aviation caution
Pilibhit Bypass Road corridor
Funnel or Outer Horizontal Surface, depending on exact alignment
Direct road access to the terminal, in a semi-urban mix of residential plots and farmland
Confirm whether a plot sits directly under the runway 11/29 approach path before pricing it as frontage land
Bareilly city core, roughly 6 km from the airport
Outer Horizontal Surface
Established urban demand, plus the fastest regional growth in aircraft movements under UDAN
Still requires an AAI or IAF NOC; rapid traffic growth does not loosen the height formula
Ahmednagar and surrounding farmland villages
Outer Horizontal Surface, largely agricultural
Airport-driven land value uplift on parcels near Izzatnagar
UP's Section 80 conversion process still applies on top of the height NOC, not instead of it
Corridor / Locality
Zone Status
Growth Driver
Known Risk
Izzatnagar, immediate Trishul Air Base vicinity
Inner Horizontal Surface and Funnel
Direct proximity to the civil enclave terminal, inside one of the IAF's largest airbases
The base's history hosting sensitive squadrons adds a defence-review dimension beyond ordinary civil aviation caution
Pilibhit Bypass Road corridor
Funnel or Outer Horizontal Surface, depending on exact alignment
Direct road access to the terminal, in a semi-urban mix of residential plots and farmland
Confirm whether a plot sits directly under the runway 11/29 approach path before pricing it as frontage land
Bareilly city core, roughly 6 km from the airport
Outer Horizontal Surface
Established urban demand, plus the fastest regional growth in aircraft movements under UDAN
Still requires an AAI or IAF NOC; rapid traffic growth does not loosen the height formula
Ahmednagar and surrounding farmland villages
Outer Horizontal Surface, largely agricultural
Airport-driven land value uplift on parcels near Izzatnagar
UP's Section 80 conversion process still applies on top of the height NOC, not instead of it
The Pilibhit Bypass Road stretch is where the most active mispricing tends to happen, since it offers genuine road access to a growing terminal while also sitting closest to the runway's operational footprint. A parcel that looks like straightforward commercial frontage on that road can carry a materially lower height cap than an equivalent parcel a few hundred metres further from the centerline, purely because of where it falls on the approach surface's sliding scale.
Farmland toward Ahmednagar carries a second layer entirely: even once a height NOC is secured, the underlying khatauni still needs a genuine Section 80 conversion order under the UP Revenue Code before any construction, agricultural status and airport proximity are two separate questions that both need clearing.
Anything wrong, outdated, or missing we want to hear it.
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