- › Detached ADU
- › Attached ADU
- › Garage Conversion
- › Basement Conversion
- › Junior ADU (JADU)
- › Prefab / Modular ADU
- › Tiny House
ADU Contractors near Berkeley, CA
Excellent Home Remodeling
1310 Alma Avenue, Walnut Creek, CA 94596 11.6 milesExcellent Home Remodeling offers professional home addition services in Sonoma, helping homeowners expand living spaces, add bedrooms, bathrooms, home offices, or in-law suites. They handle planning and execution tailored to each property's needs.... read more
Gordon Reese
100 Pringle Avenue, Walnut Creek, CA 94596 11.8 milesGordon Reese Design Build is a licensed ADU contractor in Walnut Creek, CA, with 41+ years of experience. They offer custom ADU design and construction, 3D renderings, transparent pricing, serving the Bay Area including Danville, Lafayette & C... read more
Clever Design & Remodeling
1630 Oakland Road, San Jose, CA 95131 39.8 milesClever 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
Luma Dwellings Home Builder
63 Hazel Tree Ridge, Orinda, CA 94563 5.2 milesWe 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
Devart8 Builders
1828 South Milpitas Boulevard, Milpitas, CA 95035 37.8 milesDevArt8 Builders is a design-build ADU contractor based in Milpitas, building detached backyard ADUs, garage conversions and junior ADUs across Santa Clara County, San Mateo County and Fremont. One team handles the design, engineering, city permit... read more
ADORE Homes
180 East Sunnyoaks Avenue, Campbell, CA 95008 45.1 milesADORE Homes is a California ADU contractor specializing in detached ADUs, garage conversions, JADUs & in-law suites. They manage design, permitting & construction, helping homeowners add value & living space.
read moreDeHaro Construction Inc
6411 Brisa Street, Livermore, CA 94550 31.1 milesDeharo 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 T... read more
Anura Design
367 Civic Drive, Pleasant Hill, CA 94523 13.2 milesAnura Design specializes in ADU design, offering styles from modern farmhouse and contemporary steel to Mediterranean stucco. Their interiors feature open-concept layouts, natural wood tones, and refined finishes tailored to compact, functional li... read more
Shed Shop
3201 Diablo Avenue, Hayward, CA 94545 17.9 milesShed Shop offers ADUs (Accessory Dwelling Units) via their Mini Cottage program. Sizes range from 192 to 480 sq. ft. Services include foundation, plumbing, electrical, permits & more. Available in select cities.
read moreType Five
1336 Channing Way, Berkeley, CA 94702 0.8 milesType Five is a Berkeley, CA-based ADU builder offering custom backyard cottages, granny flats & in-law suites. They combine modular design, transparent pricing & streamlined construction for stress-free, high-quality detached ADUs built to... read more
Mission Home Remodeling
475 Gough Street, San Francisco, CA 94102 10.4 milesAKD Homes
3518 Arden Rd, Hayward, CA 94545 19.5 milesAKD 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.
read moreUrban Building Workshop
130 Bush Street, San Francisco, CA 94104 8.8 milesUrban Building Workshop is a full-service architecture firm in the Bay Area specializing in custom homes, remodels, and ADUs. Experts in Marin County, San Francisco, and Sonoma County permitting, they deliver efficient, light-filled designs.
read moreAdria Design + Build
648 Paco Drive, Los Altos, CA 94024 35.6 milesWe 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
Other cities in California
- North Highlands
- Sacramento
- North Hollywood
- Agoura Hills
- Encino
- Los Angeles
- Tarzana
- Long Beach
- Hollywood
- Glendale
- Valley Village
- Pasadena
- Burbank
- Downey
- Beverly Hills
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.