Modular accessory dwelling unit — 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
A modular ADU is built in a factory and then transported to your property to be assembled on a foundation. You should consider this if you want a faster construction timeline and less disruption in your backyard. Because the units are built off-site, they are often cost-effective and efficient. We help you choose the right model and ensure the site is ready for delivery. Exact pricing confirmed free on the call.
Frequently asked in Phoenix
What makes an ADU affordable in Phoenix?
Affordability in Phoenix ADUs often depends on size and material choices. Simpler designs and standard finishes generally reduce costs. Using pre-approved plans can also lower design fees. Discussing these options with the pros is key to finding an affordable solution for your Phoenix property.
What ADU services are available in Phoenix?
Are detached ADUs common in Phoenix?
Who builds ADUs in Phoenix?
How do I find an ADU builder near me in Phoenix?
What does an accessory dwelling unit service entail in Phoenix?
An accessory dwelling unit service in Phoenix covers everything from initial planning to project completion. This includes design, permitting assistance, and construction management. The goal is a hassle-free build for your secondary unit. The pros ensure all aspects of your ADU project are handled.
What's the cost of an accessory dwelling unit 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, Camelback East, Downtown Phoenix, North Central Phoenix, Uptown Phoenix — and every surrounding area.
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