High-rise buildings near airports

The civil aviation authority (caa) is lifting the noc condition for high-rise construction near lahore, karachi, islamabad and multan airports. Except for area marked for the air operations usage. (ref link: https://www.Zameen.Com/news/noc-condition-for-high-rises-near-airport-facilities-to-be-lifted.Html)
What i want to ask is, will it be a good investment to purchase land near islamabad airport? How is the demand in the market? And how to know which area is marked off-limits for high rise construction? Should we contact caa?