We are supposed to get building permits for any building we put up but as long as it isn't on concrete foundation they let them pass and don't fine if they find out about it (so far). My small barn is a pole barn. If I can ever get DH to move up to our "front forty" (0.77 acre) into a Yurt it will certainly be "pole" (pier and beam) foundation. Only problem with raised is snakes and other critters love to get and/or nest under them. (DIY grey water and composting toilet, almost off-grid with solar generator and solar panels I already have. Rain collection but some city water.) We can't build home on less than 1 acre but I'll "rent" a room from neighbor and Yurt will be a "storage" shed. The darn plot is zoned commercial in the middle of miles of residential. It was zoned that way with a 60 ft easement connecting to what is now the Audubon Society refuge but was originally planned as subdivisions early 70's. Our small plot was meant for construction equipment storage and access to deep woods planned for development. City never built the planned addition of road at the end of our dead end road, than doGness, to connect street to that area of woods.
This is just above size not needing a permit and the reason for foundation is town has fears of sheds etc being blown around in winds so they have to be anchored. I do have a portable carport that will go up after inspection Though it has 2x12 skids that I drive rebar thru to anchor it. It doesn't move
