This is actually a joke i have told my wife who has family in Florida: The only way i would buy property in Florida is if im allowed to build an artificial hill/mountain on it, so that in 100 years my family will own a private island.
I wonder if there is a long term business model here... Invest in land and prepare it to survive being surrounded by water, build infrastructure etc and then sell it to the same type of people who buy bunkers for end of the world situations.
You're behind the game. Seriously, there was a major supreme court ruling in 2013 that allowed floating homes to be legally classified as homes instead of marine vessels which affords a whole slew of critical protections and distinctions. In everything from protection against seizure to the coast guard not being able to walk into your home to inspect for life jackets.
Kind of makes you wonder why we haven't already been doing this on areas just off the current coast. Guess that old saying really is accurate -- necessity is the mother invention. Dutch Docklands is one of the companies building these new facilities. Their mock ups [1] look amazing.