Question 1

What is the maximum building height allowed near Delhi IGI airport?

Accepted Answer

It depends on which zone your plot falls in. Inside the red zone, the ceiling is 18 m without a prior AAI NOC. In the approach funnel, the cap is 2% of your distance from the runway edge. Check your plot's CCZM grid on NOCAS before assuming any fixed limit.

Question 2

Do I need an AAI NOC to buy a plot near IGI airport in Delhi?

Accepted Answer

You need an AAI NOC before constructing, not before purchasing. However, buying without verifying the CCZM grid height cap is the error that leads to stranded assets. Confirm permissible height before signing any sale agreement.

Question 3

Which areas in Delhi fall inside the IGI airport air funnel zones?

Accepted Answer

Dwarka Sector 8, Mahipalpur, Rangpuri, Kapashera, and Bijwasan are the most directly affected. Parts of Vasant Kunj also sit within height-restricted CCZM grids. The funnel aligns specifically with the runway 27/9 and 28/10 approach and departure paths.

Question 4

How do I check if my Delhi plot is in an airport height restriction zone?

Accepted Answer

Use the NOCAS 2 portal at nocas2.aai.aero. Enter your plot's WGS-84 coordinates and site elevation. The system returns the Permissible Top Elevation for that grid. If the PTE is below your intended build height, an NOC application is mandatory before any local body approval.

Question 5

What is the red zone near IGI airport and how large is it?

Accepted Answer

The red zone is the portion of the AAI CCZM where building heights above 18 m require a mandatory NOC. Its area was reduced from 129 sq km to 60 sq km around IGI after 2020. The funnel and approach paths within that area carry even stricter, site-specific limits.

Question 6

Can I build a multi-storey house in Dwarka Sector 8 near the airport?

Accepted Answer

This is the critical question for that sector: AAI has already halted construction there. Any build requires a fresh AAI NOC showing the proposed height is below the CCZM PTE for your specific coordinates. The DDA has issued formal letters to plot owners in Sector 8 confirming this requirement.

Question 7

What is NOCAS and how do I apply for AAI height clearance in Delhi?

Accepted Answer

NOCAS (No Objection Certificate Application System) is AAI's online portal at nocas2.aai.aero. Register with your email, submit WGS-84 site coordinates and elevation, and the system either auto-settles your case or routes it for manual review by the AAI Delhi office.

Question 8

What happens if a building violates the IGI airport funnel zone height rules?

Accepted Answer

Structures built in violation can be treated as illegal under the Aircraft (Demolition of Obstructions caused by Buildings and Trees) Rules, 1994. State and district authorities are responsible for removal or height reduction. Occupancy certificates can be withheld or cancelled.

1 Verified lands & plots for sale falling under the Delhi Air Funnel Zones.