Permit guides
Search the published guide library. Check the conditions, confirm the jurisdiction, then follow the official application path.
A Tucson casita or ADU requires building, zoning and utility review; the City allows one ADU per residential lot subject to size, height and other standards.
Tucson generally requires a residential permit and inspections for porches and regulated decks or patio structures; only a scope that meets every published exemption can proceed without one.
Panel replacement, repair, service increase and electrical reconnection are permit work, although a narrow like-for-like main-breaker replacement can depend on the City policy.
Every residential fence or wall requires zoning review; taller, retaining or special-area work can require engineered building review and inspection.
New or replacement central HVAC and mini-split systems require a trade permit; a same-type, same-size evaporative-cooler replacement can be exempt outside preservation areas.
Tucson uses a residential Addition/Alteration permit for a general remodel, interior demolition, changed walls or openings and regulated trade work.
A same-material roof-surface replacement can be exempt when it is nonstructural and outside a Historic Preservation Zone; structural roof work requires a permit.
A solar system connected to the home electrical service requires a permit; eligible roof-mounted projects can use SolarAPP+.
A tank, tankless or solar water-heater installation requires a trade permit; even a same-type, same-size tank replacement requires a permit and inspection.
Tucson exempts same-size, same-location window or door replacement when no structural framing changes; changed openings and historic or preservation properties require review.