Attached ADU in California
Reno Revive Remodeling
2655 Stanwell Drive, Concord, CA 94520
Whether you’re planning a rental unit, a guest house, or a private suite for family, RenoRevive will help you design and build a fully functional ADU that fits your needs, your lot, and your long-term goals.
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Infinity ADU
645 West 15th Street, Long Beach, CA 90813
Infinity ADU is a top ADU contractor in Long Beach, CA, specializing in attached, detached ADUs, granny flats & garage conversions. They handle design, permitting & construction, ensuring full local code compliance for a stress-free build.... read more
Decor Builders
800 Charcot Avenue, San Jose, CA 95131
Decor Builders is a San Jose-based ADU contractor with 15+ years of Bay Area experience. They offer full-service ADU design and construction, including granny flats and in-law suites, handling permits, engineering, and project management.
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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.read more
OCA Builders
331 Soquel Avenue, Santa Cruz, CA 95062
OCA Builders offers ADU design & construction in Santa Cruz County, including detached, attached, garage conversion, internal & junior ADUs. They use county-approved floor plans to streamline permitting and reduce timelines.
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Bobcat Builders
East Palo Alto, CA 94303
Bobcat Builders is a Bay Area ADU contractor specializing in accessory dwelling units in Palo Alto. They offer attached & detached ADUs, garage conversions, granny flats & in-law suites, backed by a Two Year Satisfaction Guarantee.
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Home Quality Remodeling
1070 Concord Avenue, Concord, CA 94520
Home Quality Remodeling Inc. is a licensed Bay Area general contractor (CSLB #838832) with 20+ years of experience. Services include kitchen & bathroom remodeling, room additions, ADUs, and outdoor living across Concord, San Jose, and Paramus,... read more
Potato Construction
8326 East Valley Boulevard, Rosemead, CA 91770
Potato Construction Inc., based in Rosemead, CA, is a licensed ADU contractor with 15+ years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs across the San Gabriel Valley and greater Los Angeles area.
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Falcon Builders Group
8825 Aero Drive, San Diego, CA 92123
Falcon Builders Group is a San Diego ADU contractor specializing in detached ADUs, garage conversions, JADUs, in-law suites, and casitas. They guide homeowners through design, permitting, and construction to add functional, value-boosting living s... read more
Cavalier Builders Inc
20121 Ventura Boulevard, Woodland Hills, CA 91364
Cavalier Builders offers professional and affordable services for homeowners looking to build an ADU. ADUs can add significant value to your property, provide additional living space, or generate income as a rental. Our expertise in design, constr... read more
9 Builders
San Jose, CA 95122
9 Builders is a Bay Area ADU contractor offering full-service design, permits & construction. Specializing in detached ADUs, garage conversions & additions, costs range $150K–$350K, taking 8–14 months to complete.
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Barcci Builders
16185 Los Gatos Boulevard, Los Gatos, CA 95032
Barcci Builders specializes in ADU construction across the Bay Area, offering design, permitting, and build services. With 40+ completed units, they handle JADUs, garage conversions, attached, and detached ADUs, with costs ranging from $60K to $40... read more
Granny Homes
16 Richards Drive, Roseville, CA 95678
Granny Homes, founded by Jason Lewis, is a Sacramento-based ADU contractor specializing in attached ADUs, detached backyard cottages, and garage conversions. They offer full-service design, permitting, and construction for functional, affordable a... read more
Robert Wise Construction
9320 Gaston Court, Truckee, CA 96161
Robert Wise Construction, a Truckee, CA ADU contractor, guides homeowners through costs ($350K-$600K+), permitting, and mountain-specific challenges like snow-load engineering, septic evaluation, and California ADU law for garage conversions and d... read more
USA Builders Pro
2900 Bristol Street, Costa Mesa, CA 92626
USA Builders Pro offers 20+ years of ADU construction and home addition services. Specializing in detached & attached ADUs, room additions, permits, and zoning compliance, they help homeowners boost property value and living space.
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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.