Accessory dwelling unit contractor

Looking for accessory dwelling unit contractor in Phoenix, AZ? Call AccessoryDwellingUnit Direct 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 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

A contractor oversees the physical construction, managing the subcontractors, materials, and daily site operations. You need a contractor when you have your designs finalized and are ready to transition into the building phase. They ensure the foundation is poured correctly, the framing is solid, and the utilities are hooked up safely. A good contractor acts as your primary point of contact, keeping the work on schedule while maintaining high standards of quality for your new dwelling.

Frequently asked in Phoenix

What are the disadvantages of ADUs in Phoenix?

One disadvantage might be navigating Phoenix's specific zoning laws and ensuring your ADU meets lot coverage and setback requirements. Water access and drainage can also be considerations in the desert climate. You'll want to discuss any potential impacts on your existing utilities with a professional. They can help identify these challenges.

How much does an ADU cost in Phoenix?

What are the rules for ADUs in Phoenix?

Phoenix has specific regulations for accessory dwelling units, covering aspects like minimum unit size, setbacks from property lines, and parking requirements. The city's zoning ordinance details these rules. It's crucial to work with a contractor who is knowledgeable about these specific Phoenix regulations.

Is ADU allowed in Maryland?

Accessory dwelling units are permitted in Maryland, but the specific rules and regulations can vary significantly by county and municipality. Maryland has statewide guidelines that local jurisdictions must adhere to. If your project is in Maryland, you'll need local expertise for compliance.

What are the rules for ADU in California?

California has state laws designed to facilitate ADU construction, with specific standards for size and permitting. These rules are distinct from those in Phoenix. Local cities in California may also have their own additional requirements. Always confirm the rules for your exact location.

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, North Phoenix, Central Phoenix, Scottsdale, Tempe, Glendale — and every surrounding area.