Detached ADU in California
GR Innovative Builders Inc.
12488 San Pablo Avenue, Richmond, CA 94805
GR Innovative Builders Inc. is a Bay Area ADU contractor specializing in accessory dwelling units, granny flats, and in-law suites. Completed projects in Richmond, Oakland, Lafayette & Pinole. Featured in Sunset Magazine.
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La Tour Builders
23362-G Via Fabricante, Mission Viejo, CA 92691
La Tour Builders offers expert ADU construction in Laguna Niguel, CA, including garage conversions, detached units & attached additions. Licensed, insured & code-compliant, they help homeowners add rental income or multigenerational living space.
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Build My Casita
652 Gilman Street, Palo Alto, CA 94301
SDS Homes
42400 Winchester Road, Temecula, CA 92590
SDS Homes Construction is a Temecula, CA design-build contractor specializing in ADUs, granny flats, and Casitas. They offer turnkey services from design to permitting and construction, serving Temecula and Murrieta homeowners.
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Remodeling Heroes
2150 Shattuck Avenue, Berkeley, CA 94704
Remodeling Heroes is a licensed ADU contractor in the SF Bay Area offering garage conversions, detached ADUs, in-law suites, permits, and full project management for code-compliant, lot-smart accessory dwelling unit construction.
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Bunch Design
2718 West Avenue 34, Los Angeles, CA 90065
ADUs (granny flats/backyard cottages) boost property value & rental income. Bunch Design, LA, offers custom & pre-designed ADUs: Garage Studio ($300K+), Cottage ($400K+), Stop Making Sense ($425K+), and Step ADU ($425K+).
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Ability Drafting Services
19020 Karen Drive, Salinas, CA 93907
ADUs are secondary residential units on the same lot as a primary home. Ability Drafting Services assists homeowners with ADU design and permitting, covering detached, attached, and garage conversion types, preparing full drawing sets for approval.
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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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Harrod Built
1345 Riverside Avenue, Paso Robles, CA 93446
Harrod Built is a design-build ADU contractor serving San Luis Obispo County. They specialize in detached ADUs, garage conversions, and in-law suites, managing design, permitting, and construction for Central Coast homeowners.
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Royalty Builders
20812 Ventura Boulevard, Woodland Hills, CA 91364
Royalty Builders is a full-service ADU builder in Los Angeles offering in-house design, engineering & construction. They provide competitive pricing, permit management & turnkey delivery for detached ADUs from 500–750 SF.
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IL Total Design
9655 Granite Ridge Drive, San Diego, CA 92123
IL Total Design & Build is a San Diego ADU specialist offering full-service design, permitting, and construction for granny flats, garage conversions, detached ADUs, and JADUs. They also provide home additions and remodeling across San Diego County.
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Green Tech
5605 Woodman Avenue, Van Nuys, CA 91401
Green Tech Remodeling offers full-service construction, renovation, and ADU projects including garage conversions, kitchen and bathroom remodels, home additions, flooring, roofing, electrical, plumbing, and more, with 3D design previews included.
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Homestead ADU
3705 Meadow View Drive, Redding, CA 96002
Homestead ADU offers turnkey accessory dwelling units for California homeowners. Models range from 451 to 1,200 sq ft. Offsite modular construction cuts costs by 30% and delivers units in 6–7 months. Serving Shasta & San Luis Obispo County.
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Tiny Home Associates
740 Hilltop Drive, Chula Vista, CA 91911
Veteran-owned US ADU & tiny home builder serving San Diego & LA County. Premium materials, ANSI A119.5-compliant builds, Class A fire ratings, 3D design, site assessment, permitting support & NOAH/RVIA certification included.
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Collins Remodeling
2651 Blanding Avenue, Alameda, CA 94501
Collins Remodeling is a licensed ADU contractor in Alameda, CA, specializing in detached ADUs, garage conversions, JADUs, and granny flats. They manage permitting, design, and construction, helping homeowners add value and rental income.
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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.