- › Detached ADU
- › Attached ADU
- › Garage Conversion
- › Basement Conversion
- › Junior ADU (JADU)
- › Prefab / Modular ADU
- › Tiny House
ADU Contractors near San Rafael, CA
New Avenue, Inc
2120 University Avenue, Berkeley, CA 94704 16.1 milesNew 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 one roof.
read moreADU San Mateo
3 East 3rd Avenue, San Mateo, CA 94401 31.4 milesAt 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 clear, fast, and stress free.
read moreKing David Construction
3000 El Camino Real, Palo Alto, CA 94306 44.5 milesKing David Construction is a Palo Alto ADU contractor offering full-service design, permitting & construction across the Bay Area. Specializing in detached ADUs, garage conversions & in-law suites.
read moreEdri Construction, Inc. Walnut Creek
1990 N California Blvd Ste 20, Walnut Creek, CA 94596 25.5 milesEdri Construction, Inc. is a Walnut Creek-based ADU contractor serving the Bay Area. They specialize in garage conversions, detached ADUs, attached additions, in-law suites, and JADUs, handling design, permitting, and project management.
read moreLuma Dwellings Home Builder
63 Hazel Tree Ridge, Orinda, CA 94563 20 milesWe are a family-first, boutique residential design & build firm serving the Orinda and East Bay community. We’re not just service providers — we’re your neighbors. We understand the local permitting process, the hillside terrain, the fire-hazard restrictions, and the thoughtful planning needed to create homes that truly work for East Bay families.
read moreDeBrus Construction LLC
820 Arguello Boulevard, San Francisco, CA 94118 15.3 milesDeBrus Construction LLC is a San Francisco general contractor specializing in seismic retrofits, foundation repair, ADU construction, and home remodeling. Led by Malcolm DeBrus, the company handles mandatory soft story retrofits, garage conversions, and full remodels with transparent pricing.
read moreParsa Construction
1105 Fair Weather Circle, Concord, CA 94518 28.5 milesParsa 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.
read moreADU Home Addition
68 Centre Street, Mountain View, CA 94041 47.9 milesADU Home Addition is a leading Bay Area ADU contractor with 12+ years of experience. They specialize in custom ADU construction, in-law suites, garage conversions, home additions, and rental-optimized ADUs, handling design, permits, and full construction.
read moreEagle ADU
2678 North Main Street, Walnut Creek, CA 94597 25.4 milesEagle ADU is a licensed ADU builder in Northern California offering three signature models: Eagle Studio ($180K–$220K), Eagle One ($230K–$280K), and Eagle Two ($310K–$360K), with rental income potential up to $4,000/month.
read moreOther cities in California
- North Highlands
- Sacramento
- North Hollywood
- Agoura Hills
- Encino
- Los Angeles
- Tarzana
- Long Beach
- Hollywood
- Glendale
- Valley Village
- Pasadena
- Burbank
- Downey
- Beverly Hills
What you need to know
Building ADUs in San Rafael: Navigating Marin County's Unique Landscape
San Rafael, the county seat of Marin County, presents a distinctive set of opportunities and challenges for homeowners looking to build an Accessory Dwelling Unit (ADU). Known for its hillside terrain, historic neighborhoods, and strict environmental protections, San Rafael requires experienced ADU contractors who understand the city's specific zoning codes, fire safety requirements, and design standards. With the Bay Area's ongoing housing shortage, ADUs in San Rafael have become an increasingly popular solution for homeowners seeking rental income or multigenerational living arrangements.
San Rafael ADU Regulations and Zoning Requirements
San Rafael follows California state ADU law while also enforcing its own local ordinances. Homeowners and ADU contractors in San Rafael must navigate regulations set by both the City of San Rafael Community Development Department and, in some cases, Marin County guidelines. Key regulatory considerations include:
- Maximum ADU size: Detached ADUs can be up to 1,200 square feet, while Junior ADUs (JADUs) are capped at 500 square feet.
- Setback requirements: A minimum 4-foot rear and side yard setback is typically required for new detached ADUs.
- Height limits: Detached ADUs are generally limited to 16 feet in height, though this can vary by zone.
- Fire safety compliance: Given San Rafael's proximity to high fire hazard severity zones, ADU contractors must adhere to strict fire-resistant construction materials and defensible space requirements.
- Historic district considerations: Neighborhoods like the Canal District and areas near downtown may have additional design review requirements.
Why Hire a Local ADU Contractor in San Rafael?
Working with a local ADU contractor in San Rafael is essential for a smooth permitting and construction process. Local contractors are familiar with the City of San Rafael's Building Division permit process, plan check timelines, and the specific inspectors who review ADU projects. They also understand the challenges of building on Marin County's hilly, sometimes unstable terrain, which may require additional geotechnical assessments and specialized foundation work.
Types of ADUs Popular in San Rafael
San Rafael homeowners commonly pursue several types of ADU projects, depending on their property layout and goals:
- Garage Conversion ADUs: Converting existing attached or detached garages is a cost-effective option popular in San Rafael's older residential neighborhoods.
- Detached New Construction ADUs: Ideal for larger lots, these standalone units offer maximum privacy for tenants or family members.
- Junior ADUs (JADUs): Created within the existing footprint of a single-family home, JADUs are a budget-friendly option with a streamlined permitting process.
Start Your San Rafael ADU Project Today
Whether you're looking to add rental income, house a family member, or increase your property value, partnering with a qualified ADU contractor in San Rafael, California is the first step. Make sure your contractor is licensed by the California Contractors State License Board (CSLB), carries proper insurance, and has verifiable experience with ADU projects in Marin County. A well-built ADU in San Rafael can be a long-term investment in one of the Bay Area's most desirable communities.