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Cost of accessory dwelling unit — Phoenix, AZ

Looking for cost of accessory dwelling unit in Phoenix, AZ? Call AccessoryDwellingUnit Direct for a free estimate — no obligation. Licensed adu builders serve Phoenix and the surrounding area, and you'll get straight answers on timing and what affects the price.

Thinking about adding an accessory dwelling unit (ADU) to your Phoenix property? It's a great way to increase your home's utility and value, whether you're in Arcadia or the West Valley. Licensed, insured pros serve every neighborhood in Phoenix. Phoenix has been actively promoting ADUs, but understanding the city's specific zoning and building codes is essential for a smooth process. We can help you navigate these requirements and explore design options that fit your needs. One quick call gets you a free quote—no obligation. Same-day appointments are often available in Phoenix. Let's discuss how an ADU can work for your home.

What affects the price

Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.

About this service

Building an ADU involves several variables that shift your final total, such as the size of the unit, whether you choose a detached structure or a garage conversion, and the complexity of your site’s plumbing and electrical needs. We help you navigate these choices to keep your project on track. Exact pricing confirmed free on the call.

Frequently asked in Phoenix

What are the disadvantages of ADUs in Phoenix?

In Phoenix, potential disadvantages can include ensuring proper utility connections and adhering to specific setback and lot coverage requirements. You'll also need to consider parking solutions and any potential impacts on your existing home's systems. The permitting process, while streamlined, still requires careful attention to detail.

How much does an ADU cost in Phoenix?

The cost of an ADU in Phoenix varies widely based on its size, the chosen design, and site-specific conditions. Factors like foundation type, material selection, and any necessary utility upgrades will influence the final price. A personalized quote is the most accurate way to determine your project's cost.

What are the rules for ADUs in Phoenix?

Phoenix has specific ordinances for ADUs, generally allowing them in most residential zones. Key regulations involve size limitations, setback requirements from property lines, and height restrictions. It's important to verify your property's zoning designation and any specific ADU allowances.

Is an ADU allowed in Phoenix?

Yes, accessory dwelling units are allowed in Phoenix and are actively encouraged by the city. Phoenix has worked to simplify the process for homeowners. You'll need to ensure your ADU complies with all local zoning ordinances, including those related to size, placement, and parking.

What is the $40,000 grant in California for ADU?

While California has such incentives, funding opportunities differ significantly by state and locality. You would need to research any available programs within Arizona or Phoenix.

Can I build an ADU in my backyard in Scottsdale?

Building an ADU in your backyard in Scottsdale is subject to Scottsdale's specific zoning ordinances. While it often aligns with Phoenix-area trends, you'll need to confirm if ADUs are permitted and what the requirements are for size, setbacks, and utilities. A consultation can help clarify possibilities.

Also serving nearby: Glendale · Scottsdale · Tempe · Peoria · Surprise

All cities in Arizona →

More on this: HUD ADU resources — ADU policy and financing research.

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Service area details

1,650,070residents
3,183per sq mile
8ZIP codes served

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, Downtown Phoenix, North Phoenix, Ahwatukee, West Phoenix — and every surrounding area.

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