Attached ADU in California
Sprawl Design
1893 Lorient Place, Chula Vista, CA 91913
Sprawl-Design offers expert ADU design in San Diego, including garage conversions, attached & detached units. Starting from $60K, they manage design to construction with local expertise & budget clarity.
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Elite ADU Santa Cruz
347 Soquel Avenue, Santa Cruz, CA 95062
Elite Construction builds ADUs in Santa Cruz County, offering detached units, garage conversions & addition ADUs. Projects range 250–1,200 sq ft, cost $115K–$450K, and take 6–9 months. Free estimates available.
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Sideline Builders Inc
4676 Hessel Road, Sebastopol, CA 95472
If you’re considering adding an accessory dwelling unit to your home, contact your local ADU contractors near Sebastopol: Sightline Builders. Locally owned and operated in Sonoma County, they have over 28 years of experience in the construction industry.
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Adria Design + Build
648 Paco Drive, Los Altos, CA 94024
We guide you through design options and material choices, taking precise measurements to create a custom plan that perfectly fits your property. This careful planning ensures that your new ADU will seamlessly blend with your existing space and meet all your functional needs.
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IMKAT ADU Builder
1300 National Drive, Sacramento, CA 95834
Experienced ADU builder offering a streamlined 4-phase process: free consultation, pre-construction & permitting, construction, and final handover. Covers granny flats, Casitas, detached ADUs & in-law suites with full transparency.
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Gordon Construction
PO Box 93, Pismo Beach, CA 93448
Gordon Construction builds custom ADUs including detached backyard cottages, garage conversions, above-garage suites, and in-law suites. They manage permitting, design, and full build-out for homeowners looking to add rental units or extra living space.
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Eano
42514 Albrae St, Fremont, CA 94583
Eano offers custom on-site ADU design and build services, handling permits, construction, and financing. Their app tracks progress in real time. Licensed pros average 10+ years experience. Flexible 0% interest financing options available.
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Vargas Construction
16064 Vía Harriet, San Lorenzo, CA 94580
Vargas Construction is a California ADU contractor offering detached, attached, garage, junior, and multifamily ADUs. They handle design, permitting, and construction with energy-efficient materials, custom interiors, and full amenities in 2–6 months.
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ADU Crew
6680 Alhambra Avenue, Martinez, CA 94553
Your Prefab ADU will be delivered and installed to your site. All ready to enjoy a sustainable home to last for generations.
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Southland Remodeling
15021 Ventura Boulevard, Sherman Oaks, CA 91403
Southland Remodeling is a Los Angeles ADU contractor offering detached ADUs, garage conversions, and room additions. With 20+ years experience, they handle design, permits, and construction across LA and San Fernando Valley.
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Icon Construction & Design
619 5th Street, Clovis, CA 93612
Icon Construction & Design is a Fresno & Clovis, CA ADU builder with 20+ years of experience. They specialize in detached ADUs, garage conversions, and attached ADUs, offering modern design, code compliance, and full project management.
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UADU
1702 S. Robertson Blvd. #177, Los Angeles, CA 90035
UADU is a California ADU contractor offering garage conversions, detached, attached, and two-story ADUs. They handle design, permits, and construction. Free feasibility checks available. Projects typically take 4–6 months.
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UNI Construction
1142 South Diamond Bar Boulevard, Diamond Bar, CA 91765
UNI Construction builds detached and attached ADUs, handling site planning, structural engineering, and permit-ready drawings. Options include backyard cottages, granny flats, and in-law suites, all code-compliant and tailored to your property.
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Global Arch Construction
800 Atlantic Street, Roseville, CA 95678
Global Arch Construction builds ADUs in Sacramento, offering detached units, garage conversions & in-law suites. Licensed design-build contractor managing permits, zoning & full construction. Projects completed in 4–8 months.
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Parsa Construction
1105 Fair Weather Circle, Concord, CA 94518
Parsa Construction offers residential & commercial remodeling, ADU construction, and retrofit services. Specializing in kitchen, bathroom, room additions, and accessory dwelling units like granny flats and detached ADUs, they manage permits, design, and build.
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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.