2. Air Rights – you can increase the value of a particular parcel of real estate by purchasing the air rights of another parcel. Done correctly, the value of the additional square footage that you can develop will far outweigh the cost of the air rights required.
New York City is the market in the US where air rights are particularly valuable and sought after.
It’s also a very complicated market with a lot of regulation and many variables contributing to just how valuable the air rights are at that point in time.