ADU Contractors near Berkeley, CA
Element Home Remodeling
800 West El Camino Real, Mountain View, CA 94040
35.2 miles
Element Home Remodeling is a Mountain View ADU contractor offering full design-build services in Silicon Valley. They specialize in garage conversions, backyard cottages, in-law suites & rental units, serving Palo Alto, Sunnyvale & San Jose.
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Edri Construction, Inc. Burlingame
1350 Old Bayshore Hwy, Burlingame, CA 94010
19.8 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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Harmony Design & Development
5880 3rd Street, San Francisco, CA 94124
9 miles
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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DeBrus Construction LLC
820 Arguello Boulevard, San Francisco, CA 94118
12 miles
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 conversions, and full remodels with transparent pricing.
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G Squared Construction
67 Martha Road, Orinda, CA 94563
6.1 miles
Wellmade
2371 Verna Court, San Leandro, CA 94577
12.8 miles
Wellmade is a California prefab ADU builder specializing in panelized accessory dwelling units. Founded in 2020, they've completed 200+ projects, reducing construction waste by 85%. Serving CA, OR, and WA with all-inclusive pricing.
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Ingenious General Construction
2890 North Main Street, Walnut Creek, CA 94597
12.2 miles
Ingenious General Construction is a BBB-certified, licensed contractor in Walnut Creek, CA, serving the East Bay. With 20 years of experience, they offer ADUs, kitchen & bathroom remodeling, home additions, pool construction, and landscaping.
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Clever Design & Remodeling
1630 Oakland Road, San Jose, CA 95131
39.8 miles
Clever Design & Remodeling builds ADUs across the San Francisco Bay Area, including garage conversions, attached, detached, and junior ADUs. Services cover permits, construction, interior design, and landscaping. Average ADU cost is ~$145,000.
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Manzanita Design Build
408 48th Street, Oakland, CA 94609
2.8 miles
Manzanita Design Build is an East Bay ADU contractor specializing in accessory dwelling units. Serving Berkeley, Oakland, Alameda & more. New ADU construction starts ~$300K, 5–8 month build time. Licensed (#1034108) & insured.
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HDR Remodeling
5677 Horton Street, Emeryville, CA 94608
2.4 miles
HDR Remodeling is a Bay Area Design Build firm since 1987, specializing in kitchen remodels, bathroom renovations, and home improvements across Oakland, Berkeley, Alameda, and the East Bay, backed by an experienced team of architects and designers.
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Baystar - Garage Remodel
2074 Walsh Avenue, Santa Clara, CA 95050
38.8 miles
Bay Star Garage transforms garages into functional spaces in Santa Clara & Livermore, CA. Services include remodeling, flooring, EV charging, lighting, conversions & cabinets. Licensed, bonded & insured contractor specializing in ADUs and garage upgrades.
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DeHaro Construction Inc
6411 Brisa Street, Livermore, CA 94550
31.1 miles
Deharo Construction is a trusted ADU builder serving Livermore, Pleasanton, and Dublin. Specializing in accessory dwelling units, new construction, and home additions, they deliver custom granny flats, detached ADUs, and in-law suites across the Tri-Valley area.
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ADU Premium - Eco Tiny Houses
3421 Hollis Street, Oakland, CA 94608
3.1 miles
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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Andrew G. Construction
2000 Broadway Ste. #152, Redwood City, CA 94061
26.8 miles
San Francisco ADU Solutions
967 Connecticut Street, San Francisco, CA 94107
12.5 miles
ADUs (accessory dwelling units) are self-contained homes on existing properties. California's 2020 laws simplified ADU permits statewide. Alpha ADU Solutions, a San Francisco-based ADU builder with 100+ team members, specializes in granny flats, garage conversions & in-law suites.
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Other cities in California
What you need to know
Berkeley's Progressive ADU Policies: A City Leading the Way
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.
Understanding Berkeley's ADU Regulations
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:
- Size limits: 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 setback is typically required for new detached ADUs.
- Height restrictions: Detached ADUs are generally limited to 16 feet in height, though this can vary by zone.
- Historic districts: Berkeley has several historic districts where additional design review may be required, adding complexity to the permitting process.
- Parking requirements: In most cases, ADUs in Berkeley do not require additional parking spaces, especially when located near transit corridors.
The Permitting Process for ADUs in Berkeley
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.
Why Hire a Local Berkeley ADU Contractor?
Choosing a licensed ADU contractor based in Berkeley offers significant advantages. Local contractors understand the nuances of building in the East Bay, including:
- Familiarity with Berkeley's specific zoning maps and overlay districts
- Established relationships with local building inspectors and planning staff
- Experience navigating hillside construction challenges and seismic safety requirements
- Knowledge of utility connection requirements through PG&E and EBMUD
Maximizing Your ADU Investment in Berkeley
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.