Detached ADU in California
Valley Home Builders inc.
3466 Edward Avenue, Santa Clara, CA 95054
Valley Home Builders Inc. is a Silicon Valley design-build contractor serving Santa Clara & San Mateo Counties. Founded in 2005, they specialize in kitchen remodeling, ADU construction, and home renovations across San Jose, San Mateo & beyond.
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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 spaces.
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ADU Builders
6464 Sunset Boulevard, Hollywood, CA 90028
ADU Builders is a licensed Los Angeles ADU contractor with 15 years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs, handling permits, design, and inspections for stress-free ADU construction.
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Adorn Construction Group
West End Rd., Arcata, CA 95521
Adorn Construction Group in Arcata, CA specializes in custom ADU construction, including detached ADUs and backyard cottages. They offer full-service builds compliant with local codes, helping homeowners add living space or rental income.
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Backyard Homes
2800 5th Street, Davis, CA 95618
Backyard Homes is a top ADU builder in Sacramento with 80+ completed units. They offer detached, attached, and conversion ADUs, handling design, permitting, and construction for a seamless experience across the greater Sacramento region.
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Cousin Gary Homes - Chico
13468 California 99, Chico, CA 95973
Cousin Gary Homes, serving Chico since 1972, offers a wide range of ADU models—from 439 to 1,177 sq ft—including granny flats and backyard cottages. Visit their showroom at 13468 Highway 99 North to explore options.
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KGA Construction Inc
400 L Street, Rio Linda, CA 95673
KGA Construction Inc offers turnkey ADU construction in Sacramento, including garage conversions, detached ADUs, and backyard cottages. Services cover design, permits, and build management for accessory dwelling units that add lasting property value.
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Schaefer Custom Homes
4251 South Higuera Street, San Luis Obispo, CA 93401
Schaefer Custom Homes builds ADUs in San Luis Obispo County, offering full ADUs, JADUs, garage conversions & detached units. They manage permits, design & construction for rental income, family living & more.
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Home Remodeling Center
830 Los Vallecitos Boulevard, San Marcos, CA 92069
Home Remodeling Center in San Marcos offers custom ADU construction, kitchen, bathroom, and whole house remodels. From design to completion, they prioritize clear communication, budget transparency, and free consultations for granny flats, in-law suites, and more.
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Builderwell
9641 Irvine Center Drive, Irvine, CA 92618
Builderwell is an ADU contractor in Orange County, CA, offering full-service design-build solutions for custom accessory dwelling units, including guest houses, in-law suites, and rental units across Irvine, Newport Beach, and Laguna Hills.
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Vision ADU
1440 South State College Boulevard, Anaheim, CA 92806
Vision ADU is a California ADU contractor specializing in detached ADUs, garage conversions, attached ADUs, and JADUs. They offer full-service design, permitting, and construction to help homeowners add value or rental income.
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SF Bay ADU
111 North Market Street, San Jose, CA 95113
SF Bay ADU is a full-service Bay Area ADU contractor offering design, permitting, and construction for units from 600–1,200 sq ft. Options include studio, 2bed/2bath, garden cottage, and in-law suites for rental income or multigenerational living.
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Jaws Construction Services
14000 Kelso Road, Byron, CA 94514
Jaws Construction Services builds ADUs, garage conversions, and JADUs. They handle permits, HOA coordination, and offer site-built or prefab options. East Bay ADUs rent for $1,500–$3,500+/month, potentially boosting property value.
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Tims New Construction
931 Broxton Avenue, Los Angeles, CA 90024
Tims New Construction is a Los Angeles contractor specializing in ADU, Junior ADU, and garage conversions. Services include custom design, permitting, and full builds. They also support SB9 projects, helping homeowners add rental units or family housing.
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OT Bay Builders
1580 Oakland Road, San Jose, CA 95131
OT Bay Builders is a complete remodeling company with over 40 years of combined experience amongst our team. We’re expert Bay Area ADU builders in San Jose with a customer-first mindset. As a full-service ADU builder, you can trust us to remain by your side from the first consultation to the final walkthrough.
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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.