Detached ADU in California
Element Home Remodeling
800 West El Camino Real, Mountain View, CA 94040
Element Home Remodeling is a Mountain View ADU contractor offering full design-build services in Silicon Valley. They specialize in garage conversions, backyard cottages, in-law suites & rental units, serving Palo Alto, Sunnyvale & San Jos... read more
Hubbell & Hubbell Architects, Inc.
1970 Sixth Avenue, San Diego, CA 92101
Accessory Dwelling Units (ADUs) add value and flexibility to California properties. Learn about ADU regulations, design options like garage conversions, and how Hubbell & Hubbell Architects can help you build a compliant granny flat or guest h... read more
SD Build Co
4015 Park Boulevard, San Diego, CA 92103
SD Build Co is an ADU builder in Imperial Beach, CA, offering full-scope construction services including detached ADUs, garage conversions & granny flats. They handle design, permits, zoning compliance & customization.
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Esco Builders Inc
Downey, CA 90242
Just ADUs
979 Palm Valley Circle, Chula Vista, CA 91915
Just ADUs is San Diego's top award-winning ADU contractor with 20+ years experience. They build custom ADUs, garage conversions & granny flats. Projects range $100K–$300K, taking 6–12 months, with full permitting support included.
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MTR
1984 Enterprise Boulevard, West Sacramento, CA 95691
MTR (Modern Technology Resources Inc.) offers full-service ADU design and construction in Sacramento, CA. Services include custom builds, garage conversions, permit management, and prefab options—helping homeowners add value with functional, aff... read more
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 commerc... read more
Rost Architects
8855 Research Drive, Irvine, CA 92618
Plan your ADU project with expert guidance. Rost Architects covers key factors like setbacks, height limits, floor area, utilities, and local guidelines to help homeowners avoid costly mistakes and build compliant, well-designed accessory dwelling... read more
Greenwood Custom Builders, Inc.
765 Old County Road, San Carlos, CA 94070
ADU Cities
1420 East Katella Avenue, Anaheim, CA 92867
ADU Cities is a California design-build firm specializing in ADUs, JADUs, garage conversions, and remodels. They manage design, permitting, and construction, helping homeowners add living space, boost property value, or generate rental income.
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Nagar Builders Inc.
6245 Wilshire Boulevard, Los Angeles, CA 90048
Nagar Builders Inc. is a Los Angeles construction company offering ADU construction, garage conversions, kitchen and bathroom remodeling, room additions, roofing, electrical work, and commercial remodeling since 2019.
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En Builders Inc.
18375 Ventura Boulevard, Tarzana, CA 91356
En Builders Inc. is an ADU contractor offering granny flats, garage conversions, JADUs, and 2nd story ADUs. They also provide kitchen remodeling, bathroom remodeling, room additions, roofing, solar solutions, and more.
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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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Hardt Construction Services
2900 East Belle Terrace, Bakersfield, CA 93307
In addition to remodeling projects, the team at HCS specializes in the new construction of Accessory Dwelling Units (ADUs) in Bakersfield as well. From the ground up, we will work with you every step of the way – bringing your blueprint to fruit... read more
AKD Homes
3518 Arden Road, Hayward, CA 94545
AKD Homes is a SF Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design, permits, and construction, including detached ADUs, granny flats, and custom builds ranging from 400–750 sq. ft.
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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.