The process is very involved as you'll have to navigate pre-construction activities that involve architectural plans and approval from the city and then the construction activities (Shovel to soil) take anywhere from 5-9 months depending on how much your building. 

If cleared brush, than no root systems to hold soils. 

Have you completed a geotechnical study & are the soils good?

*the site currently needs to pass certain soil tests to make sure it is clear to develop, so this is a higher risk area for investment since it is not certain if the tests will come back positive till around the beginning of 2025.

The challenge is I don't where you are but how is the soil?

The other thing to consider is the age and if you add a second floor will the entire structure need to be brought up to code for hurricane and wind.I live in a neighborhood where the homes are older (not in florida) and the foundations are hollow core CMU and adding a second floor would not be feasible due to soil bearing.

Underneath the surface its a little more dicey and one has to be very calculating.

.✅ Radon is a radioactive gas that is released from granite into the soil that is known to cause cancer, and can leach right into your home.✅ Any home built before 1980, likely has cast iron or clay sewer lines which will deteriorate over time.These issues can be avoided.

If you've lived in your town or city for 5 or 10 or 20 years, you will know things about it I can never know and thus you have a distinct advantage over me when it comes to investing - you know what a good price is, what a bad neighborhood is, what house looks good on paper but is underneath the airport flight path, and so on. 

The re-vitalization of Flagler st by Moishe Mana, the big bets billionaire Ken Griffin is making on this city, brightline train, the Beckham soccer stadium will be ready for N America World cup 2026, the double decker hwy $840M Signature bridge connecting downtown miami and miami beach and the 30 acre park underneath it.