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Phoenix, AZ

Garage conversion plans in Phoenix, AZ

Converting an existing garage is usually the cheapest way to add a rentable unit: the slab, walls, and roof already exist, so budgets typically run well under a detached new build. The make-or-break checks are ceiling height (7 ft minimum for habitable rooms), slab condition, and how far utilities have to travel.

ADU and small-dwelling rules vary by city — check local zoning, setbacks, and permit requirements before building. Several states now require streamlined ADU review; your local planning department is the authority.

What a 400 sq ft unit rents for around Phoenix

$1,140–$1,780/mo long-term · $110–$200/night short-term

Rough metro bands — an estimate, not advice. Run your own numbers.

Plans that fit this project

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Plans are design starting points checked against 2021 IRC geometry rules — not permit documents. Local codes and objective standards in Phoenix govern; confirm with your building department or a licensed professional.