Edrington and Associates helps property owners add ADUs—garage conversions, detached units, or Junior ADUs. They offer ADU Feasibility Studies in three packages and a free 15-minute consultation to explore options.
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Northbay Home Solutions offers full-service ADU construction in San Rafael, San Francisco & North Bay. Services include detached ADUs, garage conversions & JADUs, covering design, permits & build.
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Jeff Martinez Construction Inc. builds ADUs in Oakley, CA with 27+ years of experience. Services include detached ADUs, garage conversions, permits, finishing, and landscape integration across Contra Costa County.
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RWB Construction is a Lafayette, CA-based ADU contractor serving the Bay Area. They build detached ADUs, garage conversions, granny flats & in-law suites, managing design, permitting, and construction from start to finish.
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We Do Construction specializes in ADU garage conversions across the San Francisco Bay Area. Licensed and insured, they handle permitting, 3D planning, construction, and interior design, offering free estimates for homeowners.
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ProStruct Engineering offers ADU structural engineering services across California, providing permit-ready plans and calculations for detached ADUs, garage conversions, granny flats, and more, with a 2–3 week turnaround.
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Nestadu is a full-service ADU builder offering custom site-built and prefab accessory dwelling units. Prefab models range from $115K–$317K. Custom builds start at $400/sq ft. Financing options include HELOCs, construction loans, and CA grants.read more
CDU Inc. offers expert ADU construction & remodeling in the Greater Bay Area. Services include new builds, garage conversions, electrical, plumbing & custom design to boost property value & functionality.
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Tiny House Basics designs custom tiny house trailers with insulated floors, no thermal bridging, and build-ready delivery. Models range from 10–50ft, up to 12ft wide, in bumper pull or gooseneck styles. Lifetime consulting included.
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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, d... read more
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 ... read more
Sonoma, California, is a city steeped in history, known for its iconic Sonoma Plaza — the largest plaza in California — and its position at the heart of one of the world's most celebrated wine regions. Building an Accessory Dwelling Unit (ADU) in Sonoma comes with unique considerations, as contractors must navigate the city's commitment to preserving its historic character while meeting the growing demand for additional housing. Working with experienced ADU contractors in Sonoma, CA is essential to ensure your project aligns with local aesthetics, zoning requirements, and state regulations.
ADU construction in Sonoma is governed by both California state law and the City of Sonoma's local ordinances. Under California's updated ADU laws (AB 68, SB 13, and related legislation), homeowners have expanded rights to build ADUs and Junior ADUs (JADUs) on their properties. However, Sonoma's local planning department enforces specific guidelines that contractors must follow:
Hiring a local ADU contractor in Sonoma means working with professionals who understand the nuances of building in Wine Country. Local contractors are familiar with the City of Sonoma's permit process, the planning department's expectations, and the architectural styles that complement the area's historic and rural character. They can help streamline the permitting process, which typically involves submitting plans to the City of Sonoma Community Development Department for review and approval.
Experienced ADU contractors in Sonoma can assist with a variety of ADU types suited to the area's property styles:
Whether you're looking to create rental income, house extended family, or increase your property value, building an ADU in Sonoma is a smart investment. Connect with a qualified ADU contractor in Sonoma, California who can guide you through design, permitting, and construction — ensuring your project meets all local and state requirements while honoring the charm of this historic Wine Country city.