Accessory dwelling unit near me — Phoenix, AZ | AccessoryDwellingUnit Services

Looking for accessory dwelling unit near me in Phoenix, AZ? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Phoenix and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

Searching for an ADU near you helps you find companies that actively serve your specific neighborhood or county. Because building regulations change from one city to the next, working with a team that operates in your immediate area is essential for a smooth permit process. You need this when you are in the research phase and want to find a partner who has experience navigating your specific local municipal building department.

Frequently asked in Phoenix

What are the disadvantages of ADUs in Phoenix?

Potential disadvantages of ADUs in Phoenix include the upfront construction costs and the need to navigate local zoning regulations, which can sometimes be complex. You'll also want to consider the impact on your existing yard space and privacy. However, the long-term benefits of increased property value and rental income are often significant.

How much does an ADU cost in Phoenix?

The cost of an ADU in Phoenix depends on various factors, including the size, type of construction (detached vs. attached), materials used, and any necessary site preparation. Utility connections and foundation work can also influence the price. For a precise estimate tailored to your Phoenix property, it's best to get a quote from a local ADU specialist.

What are the rules for ADUs in Phoenix?

Is an ADU allowed in Phoenix?

Yes, accessory dwelling units are permitted in Phoenix, provided they comply with the city's zoning and building codes. Phoenix has been making efforts to streamline the ADU approval process. A local ADU expert can confirm your property's eligibility and guide you through the necessary steps.

What are the rules for ADUs in California?

California has state-wide legislation designed to facilitate the creation of accessory dwelling units, setting minimum standards that all cities must follow. Cities can implement additional local rules, but they must align with these state mandates. This approach aims to increase housing options across California.

California has offered financial assistance programs, such as the ADU Grant Program, to help homeowners fund ADU construction. These grants are intended to make ADUs more accessible, especially for lower-income households or those building in underserved areas. It's important to check the current availability and eligibility requirements for these programs.

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

All cities in Arizona →

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

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, Scottsdale, Tempe, Glendale, Paradise Valley, Ahwatukee — and every surrounding area.