ADU Contractors in Arizona
Arizona Building Contractors
2231 West Diamond Street, Tucson, AZ 85705
Arizona Building Contractors, LLC is a locally owned contractor that builds custom ADUs, casitas, guesthouses, and garage conversions throughout the Tucson metro area. They help clients figure out what's possible and we see every project through f... read more
Hochuli Design & Remodeling Team
2501 Hayden Road, Scottsdale, AZ 85257
Hochuli Design & Remodeling Team is a Phoenix, AZ design-build contractor offering kitchen, bathroom, whole-home remodels & home additions. Their integrated design-construction approach ensures quality, accountability & fewer costly mi... read more
Noble General Contractors
4001 East Broadway Road, Phoenix, AZ 85040
Noble General Contractors offers custom ADU construction and remodeling in Arizona. Services include detached ADUs, garage conversions, in-law suites, kitchen remodeling, flooring, framing, and more. Reliable, detail-focused builders serving Arizo... read more
Cheyenne Construction & Development
19984 E Caesar Rd, Queen Creek, AZ 85142
Cheyenne Construction & Development, serving Arizona's East Valley since 1975, specializes in ADUs, casitas, granny flats, custom homes, and remodeling across Tempe, Chandler, Mesa, Gilbert, and surrounding areas.
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Arizona Casita Builders
20866 W Werner Pl, Buckeye, AZ 85396
Arizona Casita Builders doesn’t just add square footage—we add real financial value. A well-designed casita increases your property’s market worth the moment it’s completed, creating instant equity and long-term return on investment. Wheth... read more
Complete ADU Builders
40 East Adams Street, Tucson, AZ 85705
Complete ADU Builders offers basement and attached ADU conversions in Tucson, AZ. Basement ADUs cost $95K–$180K+; attached ADUs $135K–$250K+. Fully permitted, code-compliant units for rental income or multigenerational living.
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Cavco Goodyear
1300 South Litchfield Road, Goodyear, AZ 85338
Cavco Goodyear, AZ, offers manufactured & modular homes, including ADU, granny flat & Casita options. Factory-built for quality & speed, they serve Goodyear & greater Phoenix. Verify local zoning before purchase.
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Frei Remodeling
3830 East 44th Street, Tucson, AZ 85713
Unstoppable Construction
Tucson, AZ 85705
Tucson's dedicated ADU contractor, Unstoppable Construction, specializes in casitas, guest houses & garage conversions. With 60+ years combined experience, they deliver affordable, high-quality accessory dwelling units across Central Tucson.read more
DwellWell Tiny Homes
Phoenix, AZ 85022
Genio Renovations
6250 East Rose Circle Drive, Phoenix, AZ 85251
Genio Renovations is a Phoenix-based casita builder offering full design-build services for attached and detached casitas across Arizona. They manage permits, construction, and finishes, adding value, privacy, and flexible living space to your pro... read more
Morgan Taylor Homes
10045 East Dynamite Boulevard, Scottsdale, AZ 85262
Morgan Taylor Homes, founded in 2007 in Scottsdale, AZ, has built 1,500+ homes across Arizona. Offering custom builds from turn-key homes to luxury estates, their expert team handles land acquisition, design, and construction.
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Valleywide Dig & Haul
14435 North 7th Street, Phoenix, AZ 85022
Valleywide Dig & Haul offers ADU construction in Phoenix Valley, including casitas, granny flats & garage conversions. Phoenix now allows backyard ADUs up to 1,000 sq ft. Licensed, bonded & woman-owned.
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Easthope Design
Oro Valley, AZ 85755
Easthope Design, led by ADU specialist Richard Esteb, helps Fort Collins homeowners design accessory dwelling units, including garage conversions, granny flats & backyard casitas. 15+ years experience. Serving Northern Colorado.
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Tiny Homes of Tucson
12490 N Lantern Way, Oro Valley, AZ 85755
Tiny Homes of Tucson is a trusted ADU builder in Arizona specializing in detached ADUs, garage conversions, casitas, pool houses & home offices. Full-service design, permitting & construction with flexible financing & workmanship warra... read more
Other cities in Arizona
What you need to know
ADU Contractors in Arizona: Building in the Desert Southwest
Arizona's unique climate and rapid population growth have made Accessory Dwelling Units (ADUs) an increasingly popular housing solution across the state. With scorching summers regularly exceeding 110°F in cities like Phoenix and Tucson, experienced ADU contractors in Arizona must design and build units that prioritize energy efficiency, proper insulation, and heat-resistant materials. The desert environment demands specialized construction knowledge, including the use of stucco exteriors, cool roofing systems, and high-efficiency HVAC solutions that can withstand extreme temperatures year-round.
Arizona ADU Regulations and Zoning Laws
In 2023, Arizona passed House Bill 2720, a landmark piece of legislation that significantly expanded ADU rights across the state. This law requires municipalities to allow ADUs on any single-family or multi-family residential lot, overriding many previously restrictive local zoning ordinances. Skilled Arizona ADU contractors must stay current with both state law and individual city requirements, as cities like Phoenix, Scottsdale, Tempe, and Tucson each maintain their own permitting processes and development standards. Key regulatory considerations include:
- Setback requirements that vary by municipality
- Maximum ADU size limitations, often tied to the primary dwelling's square footage
- Owner-occupancy requirements, which differ by city
- Utility connection and metering regulations
- Parking requirements that may be waived near public transit corridors
What to Look for in an Arizona ADU Contractor
Choosing the right ADU contractor in Arizona is critical to ensuring your project is completed on time, within budget, and in full compliance with local codes. A reputable contractor should hold a valid Arizona Registrar of Contractors (ROC) license, which is required for all residential construction work in the state. When evaluating potential contractors, homeowners should look for:
- Proven experience with ADU construction in Arizona's climate
- Familiarity with local permitting processes in your specific city or county
- A strong portfolio of completed ADU projects
- Transparent pricing and detailed written contracts
- Knowledge of energy-efficient building practices suited to desert environments
Types of ADUs Built by Arizona Contractors
Arizona ADU contractors typically build several types of accessory dwelling units depending on the homeowner's needs and lot configuration. Common options include detached ADUs, which are standalone structures separate from the main home, attached ADUs that share a wall with the primary residence, and garage conversions, which are especially popular in suburban Phoenix neighborhoods. Junior ADUs (JADUs), which are smaller units created within the existing footprint of a home, are also permitted under Arizona state law.
The Growing Demand for ADU Construction in Arizona
With Arizona's population continuing to grow and housing affordability remaining a top concern, the demand for qualified ADU builders in Arizona is stronger than ever. Whether you're looking to house a family member, generate rental income, or increase your property value, working with a licensed and experienced Arizona ADU contractor ensures your investment is protected and your project meets all state and local requirements.