The airport height clearances already granted near your land
Drop a pin and see the height clearances the Airports Authority of India has issued within 1.5 km, each with its permissible top elevation, the height that leaves above the ground the applicant declared, the date and the certificate itself. The most restrictive one nearby comes first.
Free. Sign in once with your phone to run it.
- The most restrictive clearance nearby named first, because that is the one that shapes expectations
- The Authority's own certificate attached to every result
- The modelled zoning limit alongside, so the granted figures can be read against it
Freeevery run
What we need
One thing at a time. Fill it in and press Run.
The answer
From the register, with its date and source.
Nothing run yet. The answer appears here with everything this mini adds:
- The most restrictive clearance nearby named first, because that is the one that shapes expectations
- The Authority's own certificate attached to every result
- The modelled zoning limit alongside, so the granted figures can be read against it
Issued height clearances, briefly
A height clearance NOC is the Airports Authority of India's no-objection certificate for a structure near an aerodrome, fixing the highest point it may reach above mean sea level at those coordinates.
- Register starts
- 1 Jan 2016
The Authority publishes every height clearance it has issued since then. Older ones are not in it.
- Search radius
- 1.5 km
Every clearance within a kilometre and a half of the pin, ordered by the figure that constrains that spot most.
- Aerodromes
- 12
Clearances issued around Chennai, Coimbatore, Madurai, Tiruchirappalli, Tuticorin, Salem, Vellore, Hosur, Neyveli, Puducherry and others in the register.
How to find airport height NOCs issued near a plot
- 1
Place the pin
Tap the plot on the map, paste a Google Maps link, or use your location while you stand there.
- 2
Press Run
The register is read around the pin, and the zoning map limit at the same spot is added alongside.
- 3
Open the certificates
Each result links to the Authority's own certificate, so every figure can be checked against the document.
Issued clearances and the zoning map limit
Two ways to answer how tall you can build near an airport, and what each one is.
| Issued clearances | Zoning map limit | Your own NOC | Building permit | |
|---|---|---|---|---|
| What it is | What the Authority granted to others nearby | What the zoning maps allow at a point, in principle | The Authority's clearance for your coordinates | The local body's approval to build |
| Evidence | The certificate itself | The map | The certificate itself | The permit |
| Lets you build | No | No | Clears the height only | Yes, with every other clearance |
When it helps with land
Settling a height argument
When a seller or an architect quotes a height, the neighbours' certificates show what the Authority has actually allowed in that pocket.
Before you apply
See the figures granted around you and the ground levels those applicants declared, then apply for your own.
Checking a certificate
Match the certificate you were shown against the Authority's published record for the same place.
A neighbour's clearance is not permission for your plot: it belongs to those coordinates and the ground level that applicant declared. Only the Authority can issue one for your land, and a height NOC is not a building approval.
Questions people ask
Can I find out what height the Airports Authority has allowed near my land?
Yes. Drop a pin above and press Run. Every height clearance the Authority has issued within 1.5 km since 1 January 2016 is listed, with the permissible top elevation, the height above the declared ground and the certificate.
Does a neighbour's clearance mean I can build to the same height?
No. A clearance is issued for one set of coordinates and for the ground level that applicant declared, so two neighbouring plots can hold different figures. It is evidence of what has been allowed nearby, and only the Authority can issue one for your own land.
What is the difference between permissible top elevation and building height?
The certificate fixes a top elevation above mean sea level, not a height above your plot. The structure height is that elevation minus the site elevation the applicant declared, and nothing may project above it, including the water tank, lift room or antenna.
What does "(Restricted)" beside a figure mean?
It is a word the Authority prints on a large minority of certificates and never defines. It does not mean zero: a certificate reading 352.1 m (Restricted) on ground declared at 306.65 m still leaves 45 metres. Read the certificate and confirm the position with the aerodrome NOC desk.
Why does one result show a range instead of a figure?
Because that certificate clears a transmission line, a wind park or a viaduct, many separate structures with a different permitted top at each. The range is what the certificate covers, not a limit for any one structure, and the result names the structure nearest the pin.
How long does a height clearance last?
Eight years from the date the NOC was issued, extendable to at most twelve years from that date. Each result shows the valid-up-to date, and an expired one is a record of what was once allowed, not a live permission.
Nothing came back. Does that mean there is no height limit?
No. It means the Authority has issued nothing within 1.5 km since the register begins on 1 January 2016, which is common away from the approach paths. The airport height mini reads the zoning map limit at the same pin.
Can I check a NOC someone has shown me?
Yes. Choose "A certificate number" and type the NOC ID printed on it, for example CHEN/SOUTH/B/090217/244038. The Authority's own entry comes back with the permitted top elevation and the certificate, to compare with the paper.
Can I search by survey number or by a builder's name?
Yes. Choose "A survey number" with the village, or "An owner, builder or applicant", and add the aerodrome to narrow it. Each certificate issued for them since 1 January 2016 is listed.
Is this free?
Yes.