4 Best ADU Builders in Gilbert, Arizona

Verified ADU contractors and builders in Gilbert, AZ

Showing 14 of 4 listings

Everything Residential and Commercial

Transform your underutilized garage into valuable living space with expert conversion services in Gilbert, AZ, including custom designs for bedrooms, offices, studios, and recreational areas. Our experienced team handles every aspect of your garage-to-living-space conversion, from permits and structural modifications to finishing touches that seamlessly integrate with your home.

+1 480-798-7060
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One Hat ADU

Transform your Gilbert home with a professional ADU builder specializing in accessory dwelling units that maximize your property's potential and rental income. From design to completion, we handle every aspect of creating a separate living space that meets local codes and your family's needs.

+1 480-805-5875
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RezCom Builders

RezCom Builders is a full-service custom home builder specializing in residential and commercial structures, including pools, landscaping, and outdoor spaces. With over 30 years of experience, the team combines passion and innovation to bring clients’ dreams to life, using the latest technology and materials to ensure exceptional results.

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RG Construction Services, LLC AZ

Specializing in ADU construction throughout Gilbert, Arizona, we transform properties into multi-unit homes with expert planning and quality craftsmanship. From initial design to final inspection, we handle all aspects of building accessory dwelling units for homeowners looking to maximize their property value and rental potential.

+1 480-725-3001
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Frequently Asked Questions — ADU Builders in Gilbert

How much does it cost to hire an ADU builder in Gilbert?

ADU construction costs in Gilbert, Arizona vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Gilbert to get accurate quotes for your specific project.

How long does it take to build an ADU in Gilbert?

In Gilbert, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on Arizona local regulations. Prefab and modular ADUs often have faster timelines than site-built units.

Do I need a permit to build an ADU in Gilbert?

Yes, a building permit is required for ADU construction in Gilbert, Arizona. Your ADU builder will typically handle the permit application as part of their service. Arizona has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.

What types of ADUs can be built in Gilbert?

Common ADU types in Gilbert include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Gilbert ADU builder can advise on what's allowed on your specific parcel.

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