Greenwood Custom Builders, Inc.

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

AKD Homes

3518 Arden Road, Hayward, CA 94545 17 miles

AKD Homes is a SF Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design, permits, and construction, including detached ADUs, granny flats, and custom builds ranging from 400–750 sq. ft.

Dwelling Lab

21 El Caminito, Walnut Creek, CA 94598 26.6 miles

Dwelling Lab is an Oakland-based ADU design firm offering full-service planning, schematic design, construction drawings, permitting, and construction oversight for detached ADUs, attached additions, and garage conversions.

Alameda Tiny Homes

2315 Lincoln Avenue, Alameda, CA 94501 12.5 miles

New Avenue, Inc

2120 University Avenue, Berkeley, CA 94704 17.2 miles

14 years in business Eco-Friendly

New Avenue, Inc is a full-service design-build company serving the San Francisco Bay Area and Portland, OR since 2011. They specialize in ADUs, custom homes, renovations, additions, and Enclaves, managing design, permitting, and construction under... read more

Atlas Construction

101 Jefferson Drive, Menlo Park, CA 94025 17.9 miles

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

Burton Builders LLC

32 9th Street, Richmond, CA 94801 19.4 miles

Burton Builders LLC is a trusted construction company specializing in ADU construction, single-family, multifamily, and commercial builds. Known for quality workmanship and client-focused service, they deliver expert results on every project.

Home by Tom

1990 North California Boulevard, Walnut Creek, CA 94596 26.1 miles

Licensed 21 years in business

Home by Tom is a Bay Area ADU contractor with 21+ years of experience serving Walnut Creek. They build detached ADUs, attached ADUs, and garage conversions, managing design, permits, and construction for rental income or multi-generational living.... read more

Home WiP Construction Concierge

171 Main St 261, Los Altos, CA 25.3 miles

9 Builders

San Jose, CA 95122 39.1 miles

Licensed Eco-Friendly Luxury Builds

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.

Anura Design

367 Civic Drive, Pleasant Hill, CA 94523 29.3 miles

Luxury Builds

Anura Design specializes in ADU design, offering styles from modern farmhouse and contemporary steel to Mediterranean stucco. Their interiors feature open-concept layouts, natural wood tones, and refined finishes tailored to compact, functional li... read more

Joy Line Homes

3110 Mission Drive, Capitola, CA 95065 46.1 miles

Prefab Specialist Luxury Builds

Joy Line Homes offers the ADURA ADU Series — factory-built backyard cottages and granny flats featuring modern design, high-end finishes, and durable materials. An affordable, plan-based ADU solution for homeowners seeking quality detached acces... read more

Clarity Construction

111 North Market Street, San Jose, CA 95113 36.1 miles

Clarity Construction is a Bay Area contractor specializing in ADUs, home additions, and remodeling in Sunnyvale, Palo Alto, and South San Francisco. Services include backyard ADU builds, in-law suites, permits, and kitchen remodels.

JS Design & Build

1518 Yajome Street, Napa, CA 94559 45.4 miles

JS Design & Build is a full-service ADU builder with the experience to navigate local codes, streamline approvals, and deliver exceptional results. Their in-house team of designers, builders, and project managers ensures seamless communication... read more

Kyvos Construction

430 Railroad Avenue, Pittsburg, CA 94565 38.3 miles

Luxury Builds

Kyvos Construction offers home remodeling & ADU construction in Concord, CA. Services include kitchen & bathroom renovations, room additions, garage conversions, detached & attached ADUs, granny flats, and in-law suites.

Other cities in California

What you need to know

ADU Contractors in South San Francisco: Building in the Industrial City of the Peninsula

South San Francisco, famously known as the "Industrial City" — a title proudly displayed on Sign Hill — is a unique Bay Area community that has evolved far beyond its industrial roots. Today, it is home to a thriving biotech corridor and a growing residential population. With housing demand at an all-time high in San Mateo County, ADU contractors in South San Francisco are playing a critical role in helping homeowners maximize their property potential and address the local housing shortage.

Understanding South San Francisco ADU Regulations

ADU contractors working in South San Francisco must navigate both California state ADU laws and the city's own municipal codes. South San Francisco falls under the jurisdiction of San Mateo County guidelines while also maintaining its own zoning ordinances. Key regulations that experienced ADU builders in South San Francisco must be familiar with include:

Why Hire a Local ADU Contractor in South San Francisco?

Hiring a licensed ADU contractor with local South San Francisco experience is essential. The city's terrain includes hillside lots — particularly near Sign Hill and the areas bordering San Bruno Mountain State Park — which can present unique grading and foundation challenges. A knowledgeable contractor will understand how to handle these site-specific conditions while keeping your project compliant and on budget.

Types of ADUs Commonly Built in South San Francisco

Depending on your property type and goals, skilled South San Francisco ADU contractors can help you build:

The Value of ADUs in South San Francisco's Housing Market

With proximity to San Francisco, the SFO airport corridor, and major biotech employers like Genentech, South San Francisco has consistently strong rental demand. Adding an ADU can significantly increase your property value and generate steady rental income. Working with a reputable ADU contractor in South San Francisco, CA ensures your project meets all local building codes, passes inspections, and is completed efficiently — giving you the best return on your investment.

ADU Contractors near South San Francisco, CA