Sightline Construction is a Santa Cruz general contractor specializing in ADUs, new home builds, renovations, remodels, and custom additions. They manage projects from planning to completion, ensuring code compliance and quality craftsmanship.
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Ingenious General Construction is a BBB-certified, licensed contractor in Walnut Creek, CA, serving the East Bay. With 20 years of experience, they offer ADUs, kitchen & bathroom remodeling, home additions, pool construction, and landscaping.<... read more
ON Design & Remodeling is a Bay Area ADU builder offering home additions, garage conversions, granny flats, and in-law suites. They help homeowners expand living space, boost property value, and generate rental income.
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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
Bay Star Garage transforms garages into functional spaces in Santa Clara & Livermore, CA. Services include remodeling, flooring, EV charging, lighting, conversions & cabinets. Licensed, bonded & insured contractor specializing in ADUs ... read more
GADI Construction, led by Nadav, specializes in ADU construction, home expansions, garage conversions & granny flats. Known for detailed planning, clear communication & professional client guidance throughout every project phase.
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Crane Construction is a licensed Bay Area general contractor based in Walnut Creek, CA. They specialize in design-build projects, ADUs, garage conversions, remodeling, and new construction for residential and commercial clients. Free estimates ava... read more
Apex ADU Builders is a Los Angeles-based contractor specializing in accessory dwelling unit construction. Services include new builds, garage conversions, permitting, and design. Costs range from $80K–$400K, with potential ROI 35% higher than ho... read more
Collins Remodeling is a licensed ADU contractor in Alameda, CA, specializing in detached ADUs, garage conversions, JADUs, and granny flats. They manage permitting, design, and construction, helping homeowners add value and rental income.
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At ADU San Mateo, we combine architectural insight, construction experience, and deep knowledge of Bay Area zoning laws to deliver high quality accessory dwelling units from design through move in. Our mission is simple: to make building your ADU ... read more
Imagine the possibilities that a beautifully crafted ADU (accessory dwelling unit) brings to your Berkeley or Bay Area property. Whether it’s creating a cozy retreat for guests, a comfortable living space for family members, or an additional sou... read more
CityPaks is a minority & woman-owned ADU builder in the San Francisco Bay Area specializing in affordable, sustainable backyard cottages & detached ADUs using SIP panels. No crane needed, no sales tax, pre-approved in San Jose.
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Dream Build Services is a full-service ADU contractor in Fremont, CA, offering detached ADUs, garage conversions, basement conversions, and JADUs. Services include design, permits, electrical, plumbing, HVAC, and solar integration across the East ... read more
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.
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:
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.
Depending on your property type and goals, skilled South San Francisco ADU contractors can help you build:
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.