ADU Contractors near Berkeley, CA
DevArt8 Builders
1828 South Milpitas Boulevard, Milpitas, CA 95035
38.3 miles
DevArt8 Builders specializes in ADU construction in Gilroy, offering floor plans from 350–650 sq. ft. They handle permits, ensure zoning compliance, and build detached ADUs, attached units, and garage conversions tailored to each property.
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Valley Boutique Builders
153 2nd Street, Los Altos, CA 94022
35.1 miles
Valley Boutique Builders is a licensed Bay Area ADU contractor offering full-service accessory dwelling unit construction, custom home additions, kitchen and bathroom remodeling, and new construction with free initial consultations.
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NorCal ADU Builders
San Francisco, CA 94104
8.7 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 conversio... read more
Decor Builders
800 Charcot Avenue, San Jose, CA 95131
39.2 miles
Decor Builders is a San Jose-based ADU contractor with 15+ years of Bay Area experience. They offer full-service ADU design and construction, including granny flats and in-law suites, handling permits, engineering, and project management.
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Luma Dwellings Home Builder
63 Hazel Tree Ridge, Orinda, CA 94563
5.2 miles
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 fir... read more
PCI Construction Inc
2682 Middlefield Road, Redwood City, CA 94063
27.2 miles
PCI Construction Inc is a trusted ADU contractor offering custom accessory dwelling units, garage conversions, granny flats, and in-law suites. Licensed, bonded, and insured, they handle permitting, design, and construction efficiently.
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Bobcat Builders
East Palo Alto, CA 94303
28.6 miles
Bobcat Builders is a Bay Area ADU contractor specializing in accessory dwelling units in Palo Alto. They offer attached & detached ADUs, garage conversions, granny flats & in-law suites, backed by a Two Year Satisfaction Guarantee.
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Eano
42514 Albrae St, Fremont, CA 94583
26.1 miles
Eano offers custom on-site ADU design and build services, handling permits, construction, and financing. Their app tracks progress in real time. Licensed pros average 10+ years experience. Flexible 0% interest financing options available.
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Adria Design + Build
648 Paco Drive, Los Altos, CA 94024
35.6 miles
We guide you through design options and material choices, taking precise measurements to create a custom plan that perfectly fits your property. This careful planning ensures that your new ADU will seamlessly blend with your existing space and mee... read more
HBC Construction
41060 High Street, Fremont, CA 94538
29.1 miles
HBC Construction, based in Fremont, CA, specializes in ADU building, garage conversions, new homes & additions across the Bay Area. Licensed, code-compliant, full-service from planning to completion.
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Edri Construction, Inc. Walnut Creek
1990 N California Blvd Ste 20, Walnut Creek, CA 94596
11.7 miles
Edri Construction, Inc. is a Walnut Creek-based ADU contractor serving the Bay Area. They specialize in garage conversions, detached ADUs, attached additions, in-law suites, and JADUs, handling design, permitting, and project management.
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Rosegold Builders, Inc.
358 South Abbott Avenue, Milpitas, CA 95035
36.7 miles
Rosegold Builders builds custom ADUs across the Bay Area and Los Angeles, handling permits, zoning, and construction. Services include garage conversions, backyard cottages, and rental units designed to boost property value.
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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.... read more
9 Builders
San Jose, CA 95122
44.6 miles
9 Builders is a Bay Area ADU contractor offering full-service design, permits & construction. Specializing in detached ADUs, garage conversions & additions, costs range $150K–$350K, taking 8–14 months to complete.
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J.A. Meija Construction
5430 Commerce Boulevard, Rohnert Park, CA 94928
40.6 miles
J.A. Mejia Construction is a licensed ADU builder & home addition contractor in Sonoma County & the Bay Area. Services include detached ADUs, garage conversions, in-law suites & second-story additions in Santa Rosa, Petaluma & beyo... read more
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.