I suggest that you make a friend or friends at city hall. Being friendly and eager to learn from the inspectors vast knowledge flatters the guy. If possible borrow or buy a city firefighter's T-shirt that has the city firefighter logo on it.. Be a productive member of society.. All that BS aside - people at the city have a job to do.. There job is to follow as many codes and impress as many supervisors as they can - while not allowing something unsafe to be built on their watch.
YOU want a structure that is not common to them so it is easier for them to say no than to try to figure out how to pass your weird ideas, plans and 'kooky' dreams. (Kooky to them not to us.) If you present a plan that they can pass they will unless you brought attitude -then they can find loopholes galore that will allow them to reject. Sorry butt go up there with your best attitude then kiss ass and brown nose your way into their hearts until they are with you on this not against you. There is a city inspector that still asks about how I'm doing to this day. (I just found out about this from my plumber neighbor.)
Anyway my first suggestion to anyone is to buy
land that has no zoning nor any restrictions. That being hard or impractical for some situations, then try to figure out what building would be easiest to get by the inspection... Like a small barn or storage shed - build this first and hook electricity up to it. Then wait a few months and apply for a remodel permit and remodel the shed into have a loft or living area.
In my case I could not do any of the utilities myself if it was considered a new build...but if they considered it a remodel - then there were many things I could do myself... If you are aware of your cities codes you can figure out all kindza ways around doing everything yourself.
Next time go with NO ZONING and NO RESTRICTIONS. You're on your own there and building safe is your responsibility - but you don't need inspectors nor permits.