Free is subjective, and since there are variations of the regulations by municipality, you can choose from the spectrum of lax laws + dangerous to strict laws +

Free is subjective, and since there are variations of the regulations by municipality, you can choose from the spectrum of lax laws + dangerous to strict laws + safe. Your preferred location, however, may not align with your preferred regulations. Or you can do like we do here in Berkeley and build whatever you want because your neighbors also have illegal additions so they're not gonna squeal.