What the county actually requires, who to call, and where people get caught out.
No owner-builder opt-out of any kind; even a building-permit-exempt shed under 200 sq ft still requires a $15 Zoning Clearance Permit, and the county's published enforcement stance includes removal of unpermitted structures at the owner's expense and hearing-officer fines up to $750 for individuals — the strictest and most urbanized (Prescott/Verde Valley) of the five.
Call the office above and describe your actual build. Two things catch dome builders out in every Arizona county, whatever the permit light says: septic is regulated by the state regardless of what the county does about buildings, and no permit means no certificate of occupancy — which usually means no conventional mortgage and no standard homeowner's insurance, and a cash-buyers-only sale later.
Snow load is the other one. At elevation in Arizona it is a real engineering number, not a formality — the calculator works it out for your site.
Work out your dome's struts, hubs and cost →
This is a plain-English summary of published county rules, gathered for Tom & Courtney's Desert Domes — it is not legal advice, and codes change. The county office above is the authority; confirm with them before you buy materials.