[PurpleMountains]

A conservation easement in Florida has nothing to do with eminent domain. It is a way to keep farm lands and natural habitats in a natural state while the value (and taxes) on nearby properties are being developed. It is voluntary and to the benefit of both the public and the landowner and his heirs. I can't see why a developer would ever trade a CE for a permit, because the CE would prevent development.

[Jacquerie]

No, it is not eminent domain but a close first cousin. A portion of the developable land set in a CE is essentially owned by the government in all but name and done under duress. It is a form of extortion by government. No CE, no development will be allowed on the entire parcel. That government expropriates most of the property rights for what it considers to be a worthwhile purpose is not a sufficient reason. That was the reasoning in Kelo, denounced by all except radical liberals.