Accessory dwelling unit permit cost — Phoenix, AZ
Last updated: September 24, 2026
What affects the price
Building an ADU involves several moving parts that shape your total budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.
About this service
Permitting is a necessary step that varies significantly depending on your local city or county regulations. These fees often cover zoning reviews, impact assessments, and building inspections. Because every jurisdiction has different fee structures, these costs fluctuate based on where your property is located. We help you navigate these requirements during the planning phase to ensure everything is handled correctly. Exact pricing confirmed free on the call.
Frequently asked in Phoenix
What's involved in ADU construction in Phoenix?
How do I find a reputable ADU builder in Phoenix?
What ADU services are available for Phoenix homeowners?
Accessory dwelling unit services in Phoenix cover everything from design to construction. We offer comprehensive support to ensure your project meets all local requirements. This includes understanding Phoenix zoning laws. Get expert advice and a clear path forward. Call us for details on our ADU services.
What's the typical cost to build an ADU in Phoenix?
Where can I find accessory dwelling unit contractors near me in Phoenix?
What does an accessory dwelling unit contractor do in Phoenix?
An accessory dwelling unit contractor in Phoenix manages the entire building process. This includes planning, obtaining permits, and overseeing construction. They ensure the ADU meets all Phoenix building codes and your specific design preferences. Trust a local pro for quality work. Call us to discuss your needs.
How do I find an accessory dwelling unit near me in Phoenix?
Also serving nearby: Glendale · Scottsdale · Tempe · Peoria · Surprise
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Phoenix — population 1,650,070; about 3,183 residents per square mile across 518.3 sq mi. ZIP codes covered include 85001, 85002, 85003, 85004, 85005, 85006, 85007, 85008.
Neighborhoods served in Phoenix: Arcadia, Camelback East, Central Phoenix, North Mountain Village, South Mountain Village, Biltmore — and every surrounding area.
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