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 California and New Jersey.
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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... read more
DeBrus 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 conversion... read more
Todd Jersey Architecture (TJA) is a Berkeley-based sustainable design firm serving the SF Bay Area. Specializing in ADUs, remodels, new homes & historic preservation, TJA combines 30+ years of experience with a performance-driven, eco-consciou... read more
Soliz General Construction & Painting Inc is a Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design and construction, including permits, structural work, and finishing for granny flats, in-law suites, and ba... read more
C.J. Skeeles General Contractor specializes in ADU construction in Hayward, Oakland & San Francisco, CA. Services include detached ADUs, garage conversions & interior conversions, all built to California zoning & permitting requirement... 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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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 t... read more
Vitalize Build is a Bay Area ADU contractor offering design and construction services for detached ADUs, garage conversions, and in-law suites. They provide preapproved, predesigned, and custom layouts ranging from 238 to 1,200 sq ft.
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AKD Homes is a SF Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design, permits, and construction, including detached ADUs, granny flats, and custom builds ranging from 400–750 sq. ft.
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Bay Villa Builders brings over 50 years of combined experience in crafting expertly designed ADUs that enhance both your home's functionality and its value. An Accessory Dwelling Unit, or ADU, serves as an additional living space on your property.... read more
ADU Premium builds eco-friendly, RVIA-certified tiny homes and ADA-accessible ADUs. Models range from 90–360 sq ft, starting at $49,200. Includes permits, delivery, and installation. Financing available via RV loans, HELOC, and more.
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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 mana... read more
UDA ADU is a California ADU contractor specializing in detached ADUs, garage conversions, JADUs, and in-law suites. They handle design, permitting, and construction, offering homeowners a streamlined, full-service ADU building experience.
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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... read more
Berkeley, California has long been recognized as one of the most forward-thinking cities in the Bay Area when it comes to Accessory Dwelling Units (ADUs). As a city with a strong commitment to addressing its housing shortage and promoting sustainable urban development, Berkeley has embraced ADU construction as a key solution. The city's proximity to UC Berkeley drives consistent housing demand, making ADUs an especially attractive investment for homeowners looking to generate rental income or house family members.
Working with experienced ADU contractors in Berkeley is essential, as the city has specific zoning laws and building codes that must be carefully followed. Berkeley falls under both California state ADU laws and its own local ordinances. Key regulations include:
The Berkeley Planning and Development Department oversees ADU permits. Homeowners must submit detailed plans for review, which typically include architectural drawings, site plans, and structural engineering documents. Berkeley has worked to streamline its ADU permitting process in alignment with California's AB 68 and SB 9 legislation, aiming to reduce approval times. However, projects in hillside areas or near fault zones may require additional geological assessments, making it even more important to hire knowledgeable local ADU contractors familiar with Berkeley's unique terrain.
Choosing a licensed ADU contractor based in Berkeley offers significant advantages. Local contractors understand the nuances of building in the East Bay, including:
With Berkeley's median rental rates among the highest in the nation, a well-built ADU can generate substantial monthly income. Whether you're converting a garage, building a backyard cottage, or adding a junior ADU within your existing home, working with a qualified Berkeley ADU contractor ensures your project is completed on time, within budget, and fully compliant with all local and state regulations. Start your ADU journey today and contribute to Berkeley's growing housing solutions.