Adu housing — 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
ADU housing refers to the creation of independent living quarters on the same lot as a primary residence. This includes everything from detached backyard cottages to converted garages or above-garage apartments. You need this if you are looking to increase the value of your property, generate rental income, or provide long-term housing for guests. It is an effective way to maximize your land use while maintaining the character of your existing home and neighborhood environment.
Frequently asked in Phoenix
What's involved in accessory dwelling unit construction in Phoenix?
How much does an ADU typically cost in Phoenix?
Can I find accessory dwelling unit contractors near me in Phoenix?
What does 'accessory dwelling unit' even mean for my Phoenix property?
An accessory dwelling unit (ADU) is a secondary housing unit on a single-family home lot in Phoenix. It's a self-contained living space with its own kitchen, bathroom, and entrance. ADUs can be attached or detached from the main house. They offer flexible housing solutions for residents in Phoenix. Consider it an extra living space for family or rental income.
What permits are needed for an ADU in Phoenix?
Are there 24-hour ADU services available in Phoenix?
Where can I find a reliable accessory dwelling unit contractor 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, Biltmore, Downtown Phoenix, Camelback East, North Mountain — and every surrounding area.
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