Detached ADU in California
Coastal ADU Construction
1050 Opportunity Drive, San Francisco, CA 95678
Coastal ADU Construction is a Bay Area design/build contractor specializing in accessory dwelling units. They handle detached ADUs, garage conversions, in-law suites, and granny flats, managing both design and construction while navigating local zoning regulations.
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S.D White Construction Inc
1151 Hensley Street, Richmond, CA 94801
S.D White Construction Inc, a licensed Bay Area ADU contractor with 20+ years experience, builds detached, attached, garage conversion & above-garage ADUs in Richmond, CA. Full-service from design & permits to final inspection, completed in 3–5 months.
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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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Pinnacle Construction
6132 Innovation Way, San Diego, CA 92009
Pinnacle Construction Services Inc. offers expert metal stud framing and drywall for ADU projects in San Diego County, including detached ADUs, garage conversions, and attached additions, with 30+ years of subcontracting experience.
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New Dawn Construction
14900 Ventura Blvd Unit #330, Sherman Oaks, CA 91403
New Dawn Construction is an ADU contractor specializing in detached ADUs, garage conversions, in-law suites, granny flats, JADUs, and backyard cottages. They guide homeowners through design, permitting, and construction for flexible housing solutions.
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Resilient Homes Inc.
South Lake Tahoe, CA 96150
Resilient Homes Inc is a licensed ADU contractor offering custom accessory dwelling units, including granny flats, in-law suites, and rental units. They handle permitting, design, and construction with guaranteed workmanship and budget transparency.
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LRL Builders
1661 Botelho Drive, Walnut Creek, CA 94596
LiveLarge
2380 Qume Drive, Fruitdale, CA 95131
LiveLarge Home is a California prefab ADU builder offering full-service solutions from permits to final inspection. Build times start at 4–6 weeks, with fixed pricing from $412/sq. ft. Models range from studios to 2-bed/2-bath units with premium finishes.
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WD-4D Builders
121 West Ridgecrest Boulevard, Ridgecrest, CA 93555
WD-4D Builders specializes in ADU construction and garage conversions across California. Services include detached ADUs, granny flats, casitas, and garage-to-living-space conversions, covering design, permitting, and build from start to finish.
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ADU Garage Experts
2999 Overland Ave. Suite 103, Los Angeles, CA 90064
ADU Garage Experts, a Southern California structural engineering firm, specializes in ADU planning and drafting. They offer garage conversions from ~$70/sqft, attached and detached ADUs, helping homeowners add rental income or living space.
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AKD Homes
3518 Arden Rd, Hayward, CA 94545
AKD Homes is a Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design and build, including detached ADUs, custom designs, and conversions from Berkeley to San Jose.
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Aspace Studios
p.o. box 851, Glendora, CA 91741
Aspace Studios is an LA-based design-build firm specializing in ADUs and residential expansions. They handle detached, attached, garage conversion, and JADU projects, guiding homeowners through design, permitting, and construction.
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EcoSmart Builders
21300 Victory Boulevard, Calabasas, CA 91367
EcoSmart Builders is a licensed Southern California ADU contractor specializing in accessory dwelling units, home expansions, and fire rebuilds. Serving Los Angeles County, they manage design, permitting, and construction of detached, attached, garage conversion, and junior ADUs.
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JL Building Group
9424 Chesapeake Drive, San Diego, CA 92123
JL Building Group builds ADUs, granny flats, and garage conversions across San Diego County, including Carlsbad, Escondido & Chula Vista. They handle permits, design, and construction for rental units or family living spaces.
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Aligcus
1841 South San Gabriel Boulevard, San Gabriel, CA 91776
Aligcus is an experienced ADU contractor specializing in detached ADUs, garage conversions, JADUs, granny flats, in-law suites, and backyard cottages. They guide homeowners through permitting and construction for all accessory dwelling unit 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.