Detached ADU in California
USModular Inc.
579 West County Line Road, Calimesa, CA 92320
USModular Inc. is a Temecula, CA ADU builder specializing in modular, prefabricated construction. Units are up to 90% factory-built, completed in ~120 days, and comply with IRC and local codes. Services include feasibility studies, design, enginee... read more
Carlsbad Custom ADU Builders
2382 Faraday Avenue, Carlsbad, CA 92008
Carlsbad Custom ADU Builders specializes in custom ADU construction, detached units, granny flats, in-law suites & backyard offices. Offering transparent pricing, flexible financing & full-service solutions to maximize property value in Carlsbad.
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Custom ADU Builder
113 West Santa Fe Avenue, Fullerton, CA 92832
Full-service ADU contractor offering design, permitting, and construction of detached ADUs, attached ADUs, JADUs, and garage conversions. Most builds complete in 3–5 months. Includes quartz countertops, tile showers, and luxury vinyl flooring. R... read more
Green Room Design-Build
136 North Acacia Avenue, Solana Beach, CA 92075
Solana Beach is a beautiful coastal community in the City of San Diego, where property values and flexible living are priced at a premium. An accessory dwelling unit (ADU) provides you with the opportunity to take advantage of this by increasing y... read more
Griggs Construction
6118 Market Street, Oakland, CA 94608
Regency Construnction & Remodeling BA
The Paramount, 95 3rd St, San Francisco, CA 94103
Regency Construction & Remodeling BA is a San Francisco ADU contractor offering new builds, space conversions, and prefab ADU solutions. They handle design to completion, manage permits, and ensure compliance with local zoning laws.
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IND Construction
16430 Ventura Boulevard, Encino, CA 91436
At IND, we have a talented team of contractors, project leads, designers, and installers dedicated to creating your perfect home remodel or updating any interior or exterior project. We begin by scheduling a meeting with one of our exceptional IND... read more
HardyBuilt Custom Construction Inc.
1151 Hayes Road, McKinleyville, CA 95519
HardyBuilt Custom Construction Inc. is a licensed General Contractor in Humboldt County, CA, specializing in custom homes, ADU builds, whole house remodels, additions, and kitchen & bathroom renovations built for Marine Climate Zone 4C.
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Peak Construction and Design
71471 San Gorgonio Rd, Rancho Mirage, CA 92270
Peak Construction and Design LLC builds custom ADUs in Springfield, OR, including detached cottages, attached units, in-law suites, and rental spaces. Expert ADU contractor offering full design-to-build services tailored to your property.
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Delerio Construction
3741 West Gettysburg Avenue, Fresno, CA 93722
Delerio Construction, serving Fresno since 2006, specializes in ADU building and home remodeling. They offer flexible ADU designs for extra living space, home offices, or rentals, plus kitchen, bathroom, flooring, and window services.
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Kellow Construction
310 East Micheltorena Street, Santa Barbara, CA 93101
Kellow Construction offers full-service ADU construction in Santa Barbara County, handling design, permitting, and building. Options include detached, attached, garage conversion, and Junior ADUs. Key regulations cover size limits, setbacks, parki... read more
Talmadge Construction Inc
8070 Soquel Drive, Aptos, CA 95003
Talmadge Construction Inc is a Santa Cruz County home remodeling company specializing in ADUs, garage conversions, granny flats, and in-law suites. Known for craftsmanship and clear communication, they offer design consultations for residential pr... read more
Crest Backyard Homes - ADU Builders San Diego CA
2982 Ora Avo Terrace, Vista, CA 92084
Crest Backyard Homes is San Diego's trusted ADU builder, specializing in prefab, detached ADUs, granny flats & garage conversions. Their all-inclusive team guides homeowners from design to completion, ensuring code-compliant, high-quality acce... read more
Kol & Co
23431 Blue Bird Dr, Lake Forest, CA 92630
Kol & Co. is an ADU contractor serving Orange County, West LA & North San Diego. With 15+ years in design-build, they handle detached ADUs, garage conversions, JADUs & more—managing permits, design, and construction under one roof.read more
Dobson Construction Inc.
5021 Blum Road, Martinez, CA 94553
Dobson Construction Inc. is a Bay Area ADU contractor with 16+ years of experience building home additions, detached ADUs, guest suites, and garage conversions. They handle design, permits, and construction for functional, value-adding residential... read more
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.