Detached ADU in California
Fontana General Contractors
14189 Foothill Boulevard, Fontana, CA 92335
Fontana General Contractors builds custom ADUs, including detached units, garage conversions, and in-law suites. They handle permits, zoning, and full construction management, helping property owners add value and flexible living space.
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Falcon Builders Group
8825 Aero Drive, San Diego, CA 92123
Falcon Builders Group is a San Diego ADU contractor specializing in detached ADUs, garage conversions, JADUs, in-law suites, and casitas. They guide homeowners through design, permitting, and construction to add functional, value-boosting living space.
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OCA Builders | Construction Company & ADU Contractor
245 20th Avenue, Santa Cruz, CA 95062
OCA Builders is a trusted Santa Cruz general contractor specializing in ADU construction, custom homes, kitchen & bathroom remodeling, room additions, and commercial build-outs, delivering quality craftsmanship with deep local zoning expertise.
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The ADU Pro
15338 Central Avenue, Chino, CA 91710
The ADU Pro® is a licensed ADU contractor in Chino, CA, serving Fontana and Southern California. Specializing exclusively in ADU construction, they offer detached ADUs, garage conversions, and granny flats with a lifetime transferable warranty.
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Thousand Oaks Elite ADU Builder
1343 East Thousand Oaks Boulevard, Thousand Oaks, CA 91362
Thousand Oaks Elite ADU Builder specializes in detached ADUs, attached ADUs, and garage conversions. Services include design, permitting, and full construction, built to California Title 24 standards for rental, multigenerational living, or home office use.
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Design and Construction by M&M
100 South Murphy Ave STE 200, Sunnyvale, CA 94086
Bay Area general contractor Design and Construction by M&M specializes in ADUs, remodeling, room additions, and custom builds. Serving Burlingame, Los Altos, and Campbell, they manage design, permitting, and construction. Free consultations available.
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San Diego ADU Specialists
347 3rd Avenue, Chula Vista, CA 91910
San Diego ADU Specialists, a division of Wizdom Construction Inc., builds custom ADUs, granny flats & garage conversions. Services include new construction, design, and renovations—boosting property value and rental income.
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Alon Design & Remodeling
722 Charcot Avenue, San Jose, CA 95131
Alon Design & Remodeling is a leading ADU contractor offering detached, attached, garage conversion, basement, and JADU options. ADUs boost property value, generate rental income, and provide independent living spaces with full amenities.
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Catalyst Construction
6135 Big Bend Drive, Roseville, CA 95678
Ground Up Builders
14520 Erwin Street, Van Nuys, CA 91411
Ground Up Builders helps Alhambra homeowners build fully permitted ADUs, including garage conversions, detached units, and backyard cottages. As a design-build ADU contractor, they manage design, permitting, and construction.
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Mana Construction Inc
531 Ridge Ave, Vallejo, CA 94591
Leonard ADU Garage Convert
6100 Teesdale Avenue, North Hollywood, CA 91606
Leonard Garage Conversion is a trusted ADU contractor in Los Angeles with 20+ years of experience. Specializing in garage conversions, granny flats, and JADUs, they offer quality builds, code compliance, and competitive pricing.
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Baum Construction & Development Inc
2900 Fidler Avenue, Long Beach, CA 90815
ADUs (accessory dwelling units) are self-contained homes on existing properties, ideal for rentals or multi-generational living. Costs range $100K–$200K. Baum Construction & Development Inc builds ADUs in Long Beach, CA.
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ADU Builders Bay Area
111 N Market St Suite 1150, San Jose, CA 95113
ADU Builders Bay Area specializes in detached ADUs, garage conversions, in-law suites & more. Expert ADU contractors offering transparent pricing, full permitting & quality construction throughout the Bay Area.
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Legacy Builders & Design Inc
1226 Park Street, Paso Robles, CA 93446
Legacy Builders & Design Inc is a Central Coast California general contractor serving San Luis Obispo County. Specializing in ADUs, custom homes, whole home remodels, additions, and production framing for residential and commercial projects.
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Other cities in California
What you need to know
Searching for top Detached ADU ADU Contractors in California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Detached ADU ADU Contractor in California 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 Detached ADU professionals can guide you through every step.
California homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Detached ADU ADU Contractors in California, and get started today.