ExpandADU | Prefab ADUs

41111 Mission Boulevard, Fremont, CA 94539 47.5 miles

ExpandADU is a California-based prefab ADU builder offering full-service accessory dwelling unit construction, including consultation, design, planning, and build. Serving the Bay Area and beyond, they specialize in detached ADUs, granny flats, and JADUs.

Eagle ADU

2678 North Main Street, Walnut Creek, CA 94597 41.1 miles

Licensed 12 weeks build time Prefab Specialist

Eagle ADU is a licensed ADU builder in Northern California offering three signature models: Eagle Studio ($180K–$220K), Eagle One ($230K–$280K), and Eagle Two ($310K–$360K), with rental income potential up to $4,000/month.

A+ Construction & Remodeling ADU Builders

3612 Madison Ave #33, North Highlands, CA CA 95660 48.6 miles

Licensed 30 years in business Eco-Friendly

A+ Construction & Remodeling is a top-rated ADU contractor in Greater Sacramento with 30+ years experience. They offer custom ADUs, garage conversions, granny flats & more, managing all permits and zoning compliance. CSLB Licensed #1007869.

prefabADU

1111 Western St, Fairfield, CA CA 94533 43.3 miles

16 years in business 13 weeks build time Prefab Specialist

prefabADU is a Bay Area ADU builder with 16+ years of experience offering affordable kits and plans from under $45K. With 12 state-approved plans valid across California, they simplify permits, design, and installation for homeowners.

Perpetual Homes ADU

4115 Blackhawk Plaza Circle, Danville, CA 94506 35.4 miles

40 years in business Prefab Specialist Eco-Friendly

Perpetual Homes is a Northern California ADU builder with 40+ years of experience. They offer customizable prefab ADUs, a 10-step process, no site work markup, Energy Star insulation, a 7-year warranty, and an A+ BBB rating.read more

Summit Building Group

1401 21st Street, Sacramento, CA 95811 42.6 miles

Eco-Friendly Luxury Builds

Sacramento's Summit Building Group offers full-service ADU construction, including custom design, permitting, garage conversions, and detached units. They serve homeowners seeking rental income, multigenerational living, or guest suites, backed by a lifetime workmanship warranty.

American Helical

1850 Countryside Dr. #1005, Turlock, CA 95380 40.1 miles

Licensed

American Helical (CA LIC #1128975) is a full-service ADU contractor in California offering planning, design, permitting, and construction. A 3rd-generation builder, they provide pre-designed models, custom ADUs, and prefab installs across multiple counties.

MTR – ADU Contractor in West Sacramento, CA

MTR

1984 Enterprise Boulevard, West Sacramento, CA 95691 43.1 miles

MTR (Modern Technology Resources Inc.) offers full-service ADU design and construction in Sacramento, CA. Services include custom builds, garage conversions, permit management, and prefab options—helping homeowners add value with functional, affordable accessory dwelling units.

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What you need to know

Searching for top Prefab / Modular ADU ADU Contractors in Stockton, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Prefab / Modular ADU ADU Contractor in Stockton ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Prefab / Modular ADU professionals can guide you through every step.

Stockton homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Prefab / Modular ADU experts featured here bring local expertise and proven experience to help make your project a success.

Browse our listings to find the best Prefab / Modular ADU ADU Contractors in Stockton, California, and get started today.

Prefab / Modular ADU near Stockton, CA