Detached ADU in California
Element Homes
188 Acalanes Drive, Sunnyvale, CA 94086
Element Homes is a California ADU contractor offering full-service design, permitting, and construction. They build detached ADUs, garage conversions, and in-law suites across the Bay Area, with in-house teams, warranties, and free estimates.
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QUH Studio
120 East Tehachapi Boulevard, Tehachapi, CA 93561
QUH Studio, based in Tehachapi, CA, offers ADU design, architectural drafting, and construction documents for California homeowners. Services include floor plans, 3D renderings, permit support, and interior architecture for residential and commercial projects.
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Ruland Design Group
3245 University Avenue, San Diego, CA 92104
Ruland Design Group offers expert ADU design services in San Diego, including garage conversions, detached ADUs, JADUs & more. With 600+ completed designs, they guide clients from concept to permit-ready plans.
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Sideline Builders Inc
4676 Hessel Road, Sebastopol, CA 95472
If you’re considering adding an accessory dwelling unit to your home, contact your local ADU contractors near Sebastopol: Sightline Builders. Locally owned and operated in Sonoma County, they have over 28 years of experience in the construction industry.
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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 Tri-Valley area.
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DR Build ADU specialist
3635 Bonita Farms Court, Bonita, CA 91902
Dr Build ADU Specialist's mission is to build affordable high-quality Accessory Dwelling Units (ADU’s/Granny Flats) that the average person can afford.
Always providing the best with our friendly, understanding, bilingual builders and sales personal.
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RnD Builders Inc
21250 Califa Street, Woodland Hills, CA 91367
RnD Builders is a top-rated ADU builder and design-build firm serving Ventura County and Los Angeles County, specializing in ADU construction, home additions, remodels, and outdoor projects with a client-focused approach.
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NorCal ADU Builders
San Francisco, CA 94104
NorCal ADU Builders is a California-based full-service ADU contractor handling planning, permits, Title 24 compliance, and construction—including foundation, framing, roofing, plumbing, and interior finishes—for detached ADUs, garage conversions, and backyard cottages.
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All Shapes Construction & Design
14320 Ventura Boulevard, West Hills, CA 91423
All Shapes Construction & Design (ASCD) is a Southern California contractor with 20+ years of experience offering ADU construction, garage conversions, kitchen & bathroom remodeling, room additions, and custom homes across Los Angeles.
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United Builders Development, Inc
25350 Magic Mountain Parkway, Santa Clarita, CA 91355
Building an ADU boosts property value, generates rental income, and offers flexible living space. United Builders, a licensed ADU contractor, delivers expert design-build solutions, garage conversions, and custom ADUs on time and within budget.
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Vision Home Remodeling
7717 Owensmouth Avenue, Canoga Park, CA 91304
Vision Home Remodeling Inc. offers full-service ADU construction in Los Angeles, including detached units, attached dwellings, casitas, and rental-ready granny flats. Services cover design, permitting, and ground-up builds tailored to LA zoning laws.
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Kyvos Construction
430 Railroad Avenue, Pittsburg, CA 94565
Kyvos Construction offers home remodeling & ADU construction in Concord, CA. Services include kitchen & bathroom renovations, room additions, garage conversions, detached & attached ADUs, granny flats, and in-law suites.
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Ritz ADU Design Build
7878 Clairemont Mesa Boulevard, San Diego, CA 92111
RITZ ADU Design Build has served San Diego County since 1965, offering full-service ADU construction including granny flats, garage conversions, backyard offices & rental units. Expert planning, 3D design, permitting & builds that boost property value.
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Organic ADU
4432 Ingraham Street, San Diego, CA 92109
California ADUs (granny flats) add rental income or family housing to existing lots. Detached units up to 1,200 sq ft are allowed. Building costs start at $1,200/sq ft. Hire a specialized ADU contractor in San Diego for permits and zoning compliance.
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Merced County Builders
2222 M Street, Los Banos, CA 95340
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.