ADU Contractors near Sonoma, CA
Bay Area Home Remodelers
225 Schwerin Street, San Francisco, CA 94134
40.2 miles
Bay Area Home Remodelers builds ADUs in Daly City, San Francisco & San Jose. Services include garage conversions, granny flats, JADUs & detached units. Full project support from permits to completion.
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Regency Construnction & Remodeling BA
The Paramount, 95 3rd St, San Francisco, CA 94103
34.9 miles
Regency Construction & Remodeling BA is a San Francisco ADU contractor offering new builds, space conversions, and prefab ADU solutions. They handle design to completion, manage permits, and ensure compliance with local zoning laws.
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Parsa Construction
1105 Fair Weather Circle, Concord, CA 94518
34.4 miles
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, design, and build.
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GR Innovative Builders Inc.
12488 San Pablo Avenue, Richmond, CA 94805
25.2 miles
GR Innovative Builders Inc. is a Bay Area ADU contractor specializing in accessory dwelling units, granny flats, and in-law suites. Completed projects in Richmond, Oakland, Lafayette & Pinole. Featured in Sunset Magazine.
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Edri Construction, Inc. Berkeley
2120 University Ave, Berkeley, CA 94704
30.7 miles
Edri Construction, Inc. is a Berkeley-based general contractor specializing in ADU construction across the Bay Area. Services include garage conversions, detached ADUs, attached additions, granny flats, and custom interiors, with full project management from permits to finishing.
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Edri Construction, Inc. Mill Valley
1 Belvedere Pl, Mill Valley, CA 94941
27.3 miles
Edri Construction, Inc. is a Mill Valley-based Bay Area ADU contractor offering full-service accessory dwelling unit construction, including garage conversions, detached ADUs, JADUs, and in-law suites, with permit handling and energy-efficient building.
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Lion ADU Builders
456 Cavour Street, Oakland, CA 94618
34.9 miles
Lion ADU Builders is an Oakland ADU contractor offering detached ADUs, garage conversions, in-law suites, and custom builds. They manage design, permits, and construction, helping homeowners add space and property value across the Bay Area.
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NorCal ADU Builders
San Francisco, CA 94104
34.5 miles
NorCal ADU Builders is a California-based full-service ADU contractor handling planning, permits, Title 24 compliance, and construction—including foundation, framing, roofing, plumbing, and interior finishes—for detached ADUs, garage conversions, and backyard cottages.
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JS Design & Build
1518 Yajome Street, Napa, CA 94559
9.6 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, consistent quality, and on-time, on-budget completion.
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E&E General Construction Inc
601 21st, Richmond, CA
25.3 miles
E&E General Construction Inc (License #1067263) specializes in ADU construction and garage conversions in Richmond, CA. Services include detached ADUs, attached units, and garage conversions across the Bay Area. Free estimates available.
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Larson Shores Architects
1295 Alabama Street, San Francisco, CA 94110
36.4 miles
Larson Shores Architects is a San Francisco-based firm offering residential, ADU, and commercial design services. Founded in 2007 by Josh Larson, they specialize in new builds, garage conversions, in-law suites, and full permit navigation across the Bay Area.
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West Coast ADU
4245 Hargrave Avenue, Santa Rosa, CA 95407
18.2 miles
West Coast ADU is a California-based ADU builder offering prefab & manufactured accessory dwelling units. They help homeowners add rental income, house family members & boost property value with streamlined permitting & construction.
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Edri Construction, Inc. Burlingame
1350 Old Bayshore Hwy, Burlingame, CA 94010
48.3 miles
Edri Construction, Inc. in Burlingame offers full-service ADU construction across the Bay Area, including garage conversions, detached ADUs, attached additions, and custom interiors, with energy-efficient builds and multi-generational living solutions.
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Hilario Construction
Santa Rosa, CA 95405
15.5 miles
Hilario Construction is a Santa Rosa ADU contractor offering full-service accessory dwelling unit construction, including permits, design, and turnkey delivery. Serving Santa Rosa, Windsor, and Petaluma, they build detached ADUs, granny flats, and in-law suites compliant with California ADU laws.
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AKD Homes
3518 Arden Rd, Hayward, CA 94545
50 miles
AKD Homes is a Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design and build, including detached ADUs, custom designs, and conversions from Berkeley to San Jose.
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Other cities in California
What you need to know
ADU Contractors in Sonoma, CA: Building in Wine Country's Historic Town
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.
Sonoma ADU Regulations and Zoning Requirements
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:
- Maximum ADU size: Detached ADUs in Sonoma are generally permitted up to 1,200 square feet, subject to lot size and zoning district.
- Height restrictions: Detached ADUs are typically limited to 16 feet in height, though this can vary based on proximity to the main dwelling.
- Setback requirements: A minimum 4-foot rear and side setback is required for most ADU constructions.
- Historic preservation: Properties near or within Sonoma's historic districts may require additional design review to ensure compatibility with the surrounding architecture.
- Owner-occupancy rules: As of 2020, California state law removed owner-occupancy requirements for ADUs through 2025, providing more flexibility for Sonoma homeowners.
Why Hire a Local ADU Contractor in Sonoma?
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.
Types of ADUs Commonly Built in Sonoma
Experienced ADU contractors in Sonoma can assist with a variety of ADU types suited to the area's property styles:
- Detached ADUs: Standalone structures ideal for larger lots common in Sonoma's residential neighborhoods.
- Attached ADUs: Additions connected to the primary home, maximizing existing footprints.
- Garage Conversions: Transforming existing garages into livable spaces, a popular and cost-effective option.
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing primary residence.
Start Your Sonoma ADU Project Today
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.