Greenwood Custom Builders, Inc.

765 Old County Road, San Carlos, CA 94070 14 miles

California Bay Builders & Remodeling

2150 N 1st Street Suite 400, San Jose, CA 95131 33.4 miles

Bay Area design-build ADU specialists. One project, one point of contact — design, engineering, permitting, and construction from start to finish. CSLB #1130783.

Intelligent Choice Builders

1437 Park Avenue, San Jose, CA 95126 35.4 miles

Licensed Eco-Friendly

Intelligent Choice Builders is a licensed Bay Area ADU contractor serving Palo Alto, Cupertino, San Jose & Sunnyvale. They build detached ADUs, garage conversions, granny flats & more, managing permits, design & construction end-to-end.

DeHaro Construction Inc

6411 Brisa Street, Livermore, CA 94550 36.2 miles

Deharo Construction is a trusted ADU builder serving Livermore, Pleasanton, and Dublin. Specializing in accessory dwelling units, new construction, and home additions, they deliver custom granny flats, detached ADUs, and in-law suites across the Tri-Valley area.

Smith and Son Construction

1771 Vineyard Drive, Antioch, CA 94509 42.3 miles

At Smith and Son Construction, they specialize in designing and building high-quality ADUs in San Leandro, CA. Whether you envision a private guest house, a rental unit, or a home office, they deliver innovative designs, expert craftsmanship, and a stress-free construction experience.

S.D White Construction Inc

1151 Hensley Street, Richmond, CA 94801 20.4 miles

Licensed 20 years in business

S.D White Construction Inc, a licensed Bay Area ADU contractor with 20+ years experience, builds detached, attached, garage conversion & above-garage ADUs in Richmond, CA. Full-service from design & permits to final inspection, completed in 3–5 months.

Green Living Builders, LLC

833 Bancroft Way, Berkeley, CA 94710 16 miles

Licensed Eco-Friendly Free Consultation

Green Living Builders LLC is a licensed, bonded Berkeley CA general contractor specializing in ADU construction, garage conversions, home remodels, and new builds across the East Bay. Diamond Certified with deep local expertise.

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What you need to know

Searching for top Attached ADU ADU Contractors in South San Francisco, 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 South San Francisco 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.

South San Francisco 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 South San Francisco, California, and get started today.

Attached ADU near South San Francisco, CA