IAF Air Funnel Zones - Dibrugarh

Here is the mistake that costs Dibrugarh buyers time. They assume the airports authority handles the paperwork. Around a military base like Chabua, it does not.

This table shows the height restrictions near military airfield surfaces and what each means for a plot around Chabua.

Read that last row twice. Any structure within the restricted radius needs a No Objection Certificate before you build, whatever its height. For Chabua, defence authorities issue NOC decisions, not the civil airports authority, because military aerodromes control their own airspace surfaces. The rules mirror the same NOC obstacle limitation surfaces logic the AAI uses elsewhere, but the desk you apply to is different. A seller who waves an old plan and says the height is fine is guessing. Get the survey number checked against the funnel line first, then talk price. Skip that step and you can own land you are not allowed to build up on.

Not every Dibrugarh locality sits under the funnel, and the difference decides what you can build. Distance from the runway ends is the number that matters, not distance from the town centre.

This table sorts the district's active corridors by their relationship to the airbase.

The corridor buyers misjudge most is Chabua itself. Land here is genuinely affordable, and listings sit within walking distance of the perimeter, which reads like a bargain. The catch is structural. These are the plots most exposed to the approach funnel, so a two-storey plan may clear while anything taller stalls at the defence NOC. The new emergency landing strip at Moran, a 4.2 km corridor on NH-37 where a C-130J has already landed, signals that this whole belt is a live operational zone, not a quiet frontier. Buy for a modest home and you are likely fine. Buy expecting an apartment block near the runway and you are buying a fight.