- › Detached ADU
- › Attached ADU
- › Garage Conversion
- › Basement Conversion
- › Junior ADU (JADU)
- › Prefab / Modular ADU
- › Tiny House
ADU Contractors near Phoenix, AZ
Old Reliable Construction
Phoenix, AZ 85029 2.6 milesOld Reliable builds ADUs, casitas & granny flats across Arizona's Valley. As a design-build ADU contractor, they handle floor plans, permits & construction in-house, offering customizable layouts to add property value or rental income.
read moreArizona Garage Builders
20866 West Werner Place, Buckeye, AZ 85396 24.8 milesArizona Garage Builders is an Arizona-based construction company with 25+ years of experience specializing in custom garages, RV garages, casitas, and accessory dwelling units (ADUs). They offer free 3D renderings and a 100% satisfaction guarantee... read more
Phoenix ADU Solutions, Inc.
3207 W Joan De Arc Ave, Phoenix, AZ 85029 3.3 milesPhoenix ADU contractor specializing in custom accessory dwelling units, garage conversions, granny flats & in-law suites. Tailored designs, eco-friendly materials & energy-efficient builds to maximize property value.
read moreAz-Adu
645 East Missouri Avenue, Phoenix, AZ 85012 4.1 milesAzADU (ROC 351233) builds ADUs across Greater Phoenix Valley, offering pre-approved floor plans like The Chameleon, Bisbee & Camelback. Experts in Arizona ADU laws HB 2720 & HB 2928, they handle permits to move-in.
read moreHandi Service
7014 East Camelback Road, Scottsdale, AZ 85251 10.4 milesHandi Services specializes in custom Casitas & ADUs, offering full-service design, permitting & construction. Boost property value, generate rental income & create flexible living spaces tailored to your needs.
read moreNoble General Contractors
4001 East Broadway Road, Phoenix, AZ 85040 12.7 milesNoble 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
Cuneo Construction
34084 N Sandstone Dr, San Tan Valley, AZ 85143 39.7 milesCuneo Construction builds custom ADUs, casitas & homes across Arizona, including Phoenix & East Valley. Licensed (ROC 336498), they offer design-build services, remodels & commercial projects with financing available via Wisetack®.read more
Bello Construction
PO Box 18, Gilbert, AZ 85299 10.3 milesBello Construction, led by Narsay and Sami, specializes in home remodeling and additions. Known for quality workmanship, budget management, and clear communication, they handle projects like bedroom, bathroom, and in-law suite additions.
read moreADU Innovators
3110 North Central Avenue, Phoenix, AZ 85012 6.2 milesADU Innovators is an Arizona ADU contractor serving the Phoenix area, offering turnkey design and construction of accessory dwelling units, casitas, and garage conversions. Pre-designed models range from 400–800 sq ft.
read moreCavco Goodyear
1300 South Litchfield Road, Goodyear, AZ 85338 21.3 milesCavco 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.
read moreCarson Homes
18355 West Whispering Wind Drive, Wittmann, AZ 85361 23 milesCarson Homes builds custom accessory dwelling units for homeowners across Surprise and the West Valley. Whether you need a guest house, rental unit, or space for multigenerational living, Adam Carson manages the entire project from permitting thro... read more
Cavco Phoenix
2502 West Durango Street, Phoenix, AZ 85009 8.6 milesCavco Phoenix offers manufactured and modular homes as ADU solutions, including granny flats and backyard cottages. Factory-built for predictable costs and timelines, units vary in size. Local zoning verification is advised.
read moreValleywide Dig & Haul
14435 North 7th Street, Phoenix, AZ 85022 3.4 milesValleywide 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.
read moreHomework Remodels
4105 North 20th Street, Phoenix, AZ 85016 6 milesHomework Remodels builds custom ADUs in Phoenix & Scottsdale, AZ. From detached casitas to garage conversions, they handle design, permits, and construction for rental income, multi-gen living, or guest quarters.
read moreOther cities in Arizona
- Avondale
- Buckeye
- Bullhead City
- Chandler
- Gilbert
- Golden Valley
- Goodyear
- Mesa
- Oro Valley
- Queen Creek
- San Tan Valley
- Scottsdale
- Tucson
- Wittmann
What you need to know
ADU Contractors in Phoenix, Arizona: Your Guide to Building an Accessory Dwelling Unit
If you're looking for experienced ADU contractors in Phoenix, Arizona, you're not alone. The demand for Accessory Dwelling Units (ADUs) in Phoenix has surged in recent years, driven by rising housing costs, multigenerational living trends, and the opportunity to generate rental income. Whether you're planning a detached guest house, a garage conversion, or an attached in-law suite, hiring the right Phoenix ADU contractor is the key to a successful project.
Understanding Phoenix ADU Regulations
Before breaking ground, it's essential to understand the local rules that govern ADU construction in Phoenix. The City of Phoenix has specific zoning ordinances that ADU contractors in Phoenix must navigate carefully. Key regulations include:
- Minimum lot size: Your property must meet minimum lot size requirements, typically at least 6,000 square feet for most residential zones.
- Size limitations: ADUs in Phoenix are generally limited to a maximum of 1,000 square feet or 50% of the primary dwelling's square footage, whichever is less.
- Setback requirements: ADUs must maintain specific setbacks from property lines, usually a minimum of 5 feet on the sides and rear.
- Height restrictions: Detached ADUs are typically limited to a maximum height of 24 feet.
- Owner-occupancy rules: Phoenix may require the property owner to occupy either the primary residence or the ADU.
- Parking requirements: Additional off-street parking may be required depending on the location and size of the ADU.
A knowledgeable Phoenix ADU builder will be well-versed in these regulations and will handle all necessary permits through the City of Phoenix Development Services Department, ensuring your project stays fully compliant from start to finish.
Why Hire a Specialized ADU Contractor in Phoenix?
Phoenix presents unique construction challenges that make hiring a local ADU contractor especially important. The extreme desert climate, with summer temperatures regularly exceeding 110°F, demands careful attention to insulation, energy-efficient HVAC systems, and heat-resistant building materials. Experienced ADU builders in Phoenix understand how to design and construct units that remain comfortable year-round while keeping utility costs manageable.
Additionally, Phoenix's rapid urban growth means that utility connections, infrastructure considerations, and neighborhood-specific zoning overlays can vary significantly across the metro area. A seasoned Phoenix ADU contractor will have established relationships with local inspectors, utility providers, and suppliers, helping to streamline your project timeline and budget.
What to Look for in a Phoenix ADU Contractor
- Valid Arizona contractor's license and proper insurance coverage
- Proven experience with ADU projects specifically in the Phoenix metro area
- Strong knowledge of Phoenix zoning codes and permitting processes
- Transparent, detailed project estimates and timelines
- Positive local reviews and a solid portfolio of completed ADUs
Investing in an ADU in Phoenix is a smart financial decision that can increase your property value and provide long-term rental income. By partnering with a qualified ADU contractor in Phoenix, AZ, you can bring your vision to life efficiently, legally, and with lasting quality built to withstand the Arizona desert environment.