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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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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American Builders is a San Francisco ADU contractor specializing in garage conversions, detached units, in-law suites & basement conversions. They handle permits, zoning, and deliver code-compliant accessory dwelling units on time and on budget.
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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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Metricon Homes offers ADU construction and garage conversion services. Choose from 5 sizes: Marigold, Camellia, Magnolia, Dahlia, and Sunflower. Their Design to Doorstep process covers custom design to completion. Licensed contractor: Tobin Brinker, License #1128717.
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DNM Architecture is a California-based firm specializing in ADU design and permitting. Their ADUxDNM program covers site analysis, design, permitting, and construction management, offering detached ADUs, garage conversions, and more.
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Licensed ADU contractor Full Steam Ahead Construction serves East Bay homeowners with custom accessory dwelling units, including garage conversions, backyard cottages & in-law suites. Serving Concord, Oakland, Berkeley & more.
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Home Quality Remodeling Inc. is a licensed Bay Area general contractor (CSLB #838832) with 20+ years of experience. Services include kitchen & bathroom remodeling, room additions, ADUs, and outdoor living across Concord, San Jose, and Paramus, NJ.
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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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We 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.
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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 source of income through rental, design your ADU to enrich your life.
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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 one roof.
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Harmony Design & Development builds custom ADUs across the San Francisco Bay Area, including detached units, garage conversions, and in-law suites. They manage permits, design, and construction from start to finish.
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Inspired ADUs is an architect-led ADU design firm serving the Bay Area and Southern California. With 20+ years of experience and 250+ ADUs permitted, they offer custom, panelized, and modular ADU solutions, plus interior design and SB9 lot split services.
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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.
read moreSonoma, 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.