Attached ADU in California
8A-Concrete & Construction
Fresno St, Fresno, CA 93703
8A-Concrete & Construction builds ADUs, garage conversions, and room additions in Fresno, Clovis & Visalia. Services cover foundation, framing, electrical, plumbing & interior finishes. Projects managed from permit to final inspection.... read more
Humboldt ADU
3015 H Street, Eureka, CA 95501
Humboldt ADU is a Humboldt County program helping homeowners build Accessory Dwelling Units (ADUs) like granny flats or backyard cottages to boost affordable housing. It offers guides on types, permits, financing, and construction.
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DreamHome Remodeling & Builders
36 Harold Avenue, Santa Clara, CA 95050
RnD Builders Inc
21250 Califa Street, Woodland Hills, CA 91367
RnD Builders is a top-rated ADU builder and design-build firm serving Ventura County and Los Angeles County, specializing in ADU construction, home additions, remodels, and outdoor projects with a client-focused approach.
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Box Construction
30906 Wealth Street, Murrieta, CA 92563
The ADU Company
504 East Navilla Place, Covina, CA 91723
The ADU Company, a licensed ADU contractor in Covina, CA, serves greater Los Angeles with expert accessory dwelling unit design and construction, including garage conversions, detached ADUs, JADUs, home additions, remodels, and more.
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Get Bizzy LLC
150 Riverbank Lane, Heritage Ranch, CA 93446
Get Bizzy LLC specializes in garage-to-ADU conversions in San Luis Obispo County. They handle permits, design, construction & inspections for 1, 2 & 3-car garages, creating fully legal, California-compliant accessory dwelling units.
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ADU Services Tarzana
18340 Ventura Boulevard, Tarzana, CA 91356
Milanco Building Group (MBG) is a certified general contracting company that offers extremely competitive prices while working under all the proper licenses and insurances.
We are a full turn-key company that performs projects in the commerc... read more
DREC Construction Services
15338 Central Avenue, Chino, CA 91710
DREC Construction Services is a licensed ADU builder in Glendale, CA, with 10+ years of experience. They handle design, permitting, and construction of ADUs for rental income, family housing, and home offices, offering a transferable lifetime warr... read more
Ruiz 805 Builders
1820 San Ramon Road, Paso Robles, CA 93422
Ruiz 805 Builders is a Paso Robles, CA construction company serving the Central Coast. They specialize in concrete work, retaining walls, stamped concrete, and full-scope ADU construction, collaborating with architects for quality results.
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Atlas Construction
101 Jefferson Drive, Menlo Park, CA 94025
Atlas General Construction delivers complete ADU construction for detached, attached, and converted structures. Our team manages every phase of development including zoning research, architectural coordination, structural engineering, Title 24 com... read more
Harmony Design & Development
5880 3rd Street, San Francisco, CA 94124
Harmony Design & Development builds custom ADUs across the San Francisco Bay Area, including detached units, garage conversions, and in-law suites. They manage permits, design, and construction from start to finish.
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OC Master ADU Construction
809 East Katella Avenue, Orange, CA 92867
OC Master ADU Construction builds ADUs across Orange County, offering detached units, garage conversions, JADUs & attached additions. Services include design, permitting & full construction management for rental income or family housing.read more
Waconah Construction
616 Edgewood Street, Inglewood, CA 90302
Waconah Construction builds custom ADUs in West Los Angeles, including backyard cottages, garage conversions, above-garage units, and granny flats. Serving Santa Monica, Venice, Brentwood & Beverly Hills, they guide homeowners through design, ... read more
San Diego Granny Flat ADU Builders Construction
1200 Paseo Magda, Chula Vista, CA 91910
Family-owned Home Kitchen Bath Remodeling of San Diego offers 20+ years of expert kitchen, bathroom, ADU, flooring, and interior remodeling services. Competitive pricing, 3D design, guaranteed completion dates, and financing options available.
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Other cities in California
What you need to know
Searching for top Attached 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 Attached 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 Attached 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 Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Attached ADU ADU Contractors in California, and get started today.