Attached ADU in California
The ADU Dudes
Livermore, CA
The ADU Dudes is a Bay Area & Northern California ADU contractor offering ADU construction, JADUs, garage conversions, home additions & new builds. Licensed under San Andres Construction (#1081083), serving San Jose, Oakland, Fremont &... read more
Collins Remodeling
2651 Blanding Avenue, Alameda, CA 94501
Collins Remodeling is a licensed ADU contractor in Alameda, CA, specializing in detached ADUs, garage conversions, JADUs, and granny flats. They manage permitting, design, and construction, helping homeowners add value and rental income.
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Masterful Construction
3 3rd Avenue, San Mateo, CA 94401
Masterful Construction is a San Mateo ADU contractor serving the Bay Area. They build detached ADUs, garage conversions, and in-law suites, handling design, permits, and construction. Discounts available for military and first responders.
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Marini Construction
11155 Foothill Avenue, Gilroy, CA 95020
At Michael Marini Construction, we know that the journey starts with understanding both the potential and the requirements involved. With years of experience guiding clients through everything from design ideas to local building rules, we’re her... read more
HRC Construction
4305 Caterpillar Road, Redding, CA 96003
Willbii
2158 Huntington Drive, San Marino, CA 91108
Willbii is a California ADU contractor specializing in granny flats, garage conversions, and in-law suites. They guide homeowners from consultation to construction, handling permits and design. ADUs can generate up to $5,000/month in rental income... read more
Kuhlman Scott Architects
607 North Vulcan Avenue, Encinitas, CA 92024
Kuhlman Scott Architects specializes in custom ADU design across San Diego County. Led by Todd Kuhlman, with 30+ years of experience, the firm creates detached ADUs, garage conversions, and JADUs tailored for quality, livability, and long-term pro... read more
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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Silver Moccasin Builders
2613 Pasadena Avenue, Los Angeles, CA 90031
Santa Cruz Construction Experts
303 Potrero Street, Santa Cruz, CA 95060
Santa Cruz Construction Experts builds ADUs in Scotts Valley, CA, including detached units, granny flats & in-law suites. They also construct pool houses, garages & outdoor spaces, ensuring local code compliance.
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The ADU Guru
3438 Troy Drive, Los Angeles, CA 90068
The ADU Guru is a full-service ADU contractor in Los Angeles & Orange County, specializing in garage conversions, detached ADUs & granny flats. With 100+ units completed, they offer $0 down, free 3D design & tenant placement.
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DeHaro Construction Inc
6411 Brisa Street, Livermore, CA 94550
Deharo Construction is a trusted ADU builder serving Livermore, Pleasanton, and Dublin. Specializing in accessory dwelling units, new construction, and home additions, they deliver custom granny flats, detached ADUs, and in-law suites across the T... read more
Build ADU Home Remodel
4780 West Mission Boulevard, Montclair, CA 91762
Build ADU Home Remodel is a trusted, licensed general contractor serving homeowners throughout the Inland Empire with full-service ADU construction. Whether you're looking to add rental income, house extended family, or increase your property valu... read more
ATARI Home Builders
19720 Ventura Boulevard, Woodland Hills, CA 91364
Atari Home Builders is a licensed California general contractor serving Woodland Hills & Greater LA. Specializing in custom homes, ADUs, garage conversions, kitchen & bathroom remodeling, and fire rebuilds.
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Home Revive Builders
15559 Union Ave #234, Los Gatos, CA 95032
Home Revive Builders is a licensed ADU contractor in the Bay Area, CA, specializing in garage conversions, detached ADUs, in-law suites, and more. Full-service projects include design, permits, plumbing, electrical, and finishing.
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Other cities in California
What you need to know
Searching for top Attached 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 Attached 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 Attached 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 Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Attached ADU ADU Contractors in California, and get started today.