@Steven Moore i live in Boone.
Rules differ if you're within city limits of Boone or Blowing rock. If you're outside, then you would have to check for POA's as they might have their own restrictions.
As mentioned before, if you go a little farther, outside of city limits and outside of an HOA/POA then you should be fine as less regulations will apply but you would have to read the verbiage in the deeds which will outline the restrictions set for every piece of property.
A knowledgeable agent should be able to help you with that and point you in the right direction.
I would say though that the real estate market in the high country has been insane. 30%+ growth in median sales price from one year ago, very little inventory, get ready for some multiple offer situations. The closer to towns, the worst.
Once again, your best bet might be to look for things much farther to decrease the competition you’ll face.
Good luck!