You have to truly be in the absolutely middle of nowhere with an amazingly huge amount of land to actually be able to "do what you want" in a reasonable manner without someone telling you no.
And I'm talking about stuff that couldn't be seen from off your property line. So many county regulations and such these days - some places 100+ miles from the nearest international airport had county building restrictions nearly as bad as the suburban development I lived in.
It's been a very eye opening and incredibly sad process for me. Land of the free indeed. It seems there is increasingly nowhere left to run away from petty authoritarians.
In my county there are inspectors for water and septic. That's all. So that had to be to code.
Everything else is up to the landowner.