ADU Contractors near Cupertino, CA
ADU Builders Bay Area
111 N Market St Suite 1150, San Jose, CA 95113
8.2 miles
ADU Builders Bay Area specializes in detached ADUs, garage conversions, in-law suites & more. Expert ADU contractors offering transparent pricing, full permitting & quality construction throughout the Bay Area.
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ASL Remodeling
690 Saratoga Avenue, San Jose, CA 95129
4 miles
ASL Remodeling is a California licensed ADU contractor (CSLB #1060310) with 20+ years experience and 300+ completed projects. Services include detached ADUs, garage conversions, granny flats, JADUs, and in-law suites with full design-build support... read more
Vought Construction
734 Gilman Street, Berkeley, CA 94710
41.3 miles
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 sou... read more
Regency Construnction & Remodeling BA
The Paramount, 95 3rd St, San Francisco, CA 94103
37.8 miles
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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OCA Builders
331 Soquel Avenue, Santa Cruz, CA 95062
24 miles
OCA Builders offers ADU design & construction in Santa Cruz County, including detached, attached, garage conversion, internal & junior ADUs. They use county-approved floor plans to streamline permitting and reduce timelines.
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Palo Alto ADU Solutions
2590 Marshall Drive, Palo Alto, CA 94303
9.5 miles
Custom ADU builders in Palo Alto, CA, specializing in granny flats, detached ADUs & backyard cottages. Personalized design, permitting, and full construction management for quality accessory dwelling units.
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Kaplan Architects
49 Zoe Street, San Francisco, CA 94107
37.3 miles
Kaplan Architects added a 280 sq ft ADU to an existing garage in Crocker Highlands, Oakland. Built into a hillside, it features a kitchenette, full bath, and Tudor-style exterior, serving as office, studio, or rental unit.
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Nestadu
100 Shoreline Highway, Mill Valley, CA 94941
46.6 miles
Nestadu is a full-service ADU builder offering custom site-built and prefab accessory dwelling units. Prefab models range from $115K–$317K. Custom builds start at $400/sq ft. Financing options include HELOCs, construction loans, and CA grants.read more
DeHaro Construction Inc
6411 Brisa Street, Livermore, CA 94550
29.8 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 T... read more
Bay Harbor Remodeling and Construction
2121 North California Boulevard, Walnut Creek, CA 94596
40.9 miles
Bay Harbor Remodeling & Construction is a licensed Bay Area contractor with 25+ years of experience. Services include kitchen & bathroom remodeling, ADU conversions, roofing, decks, and more across 50+ California cities.
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GR Innovative Builders Inc.
12488 San Pablo Avenue, Richmond, CA 94805
45.7 miles
GR Innovative Builders Inc. is a Bay Area ADU contractor specializing in accessory dwelling units, granny flats, and in-law suites. Completed projects in Richmond, Oakland, Lafayette & Pinole. Featured in Sunset Magazine.
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ADU Crew
6680 Alhambra Avenue, Martinez, CA 94553
47.7 miles
Your Prefab ADU will be delivered and installed to your site. All ready to enjoy a sustainable home to last for generations.
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Luma Dwellings Home Builder
63 Hazel Tree Ridge, Orinda, CA 94563
39.8 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
Edrington and Associates
5944 Claremont Avenue, Oakland, CA 94618
38.3 miles
Edrington and Associates helps property owners add ADUs—garage conversions, detached units, or Junior ADUs. They offer ADU Feasibility Studies in three packages and a free 15-minute consultation to explore options.
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Larson Shores Architects
1295 Alabama Street, San Francisco, CA 94110
38.2 miles
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
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What you need to know
ADU Contractors in Cupertino, CA: Building in the Heart of Silicon Valley
Cupertino, California, is globally recognized as the home of Apple Inc. and sits at the center of Silicon Valley's booming tech economy. This reputation drives exceptionally high property values and a strong demand for additional housing solutions. ADU contractors in Cupertino are uniquely positioned to help homeowners maximize their property's potential, whether to house family members, generate rental income, or accommodate the area's ever-growing workforce. With median home prices consistently among the highest in Santa Clara County, adding an Accessory Dwelling Unit (ADU) is one of the smartest investments a Cupertino homeowner can make.
Cupertino ADU Regulations and Zoning Requirements
Working with an experienced ADU contractor in Cupertino is essential because the city follows both California state ADU laws and its own local ordinances. Cupertino falls under Santa Clara County jurisdiction for some services but maintains its own Community Development Department, which oversees ADU permits. Key regulations homeowners and contractors must navigate include:
- Maximum ADU size: Detached ADUs can be up to 1,200 square feet, while attached ADUs are generally limited to 50% of the primary dwelling's square footage.
- Setback requirements: A minimum 4-foot rear and side yard setback is required for most new detached ADUs, in compliance with California state law (AB 68).
- Height limits: Detached ADUs are typically limited to 16 feet in height, though two-story ADUs may be permitted under specific conditions.
- Owner-occupancy rules: As of 2020, California state law removed owner-occupancy requirements for ADUs built before 2025, giving Cupertino homeowners more flexibility.
- Parking requirements: ADUs are generally exempt from additional parking requirements when located within half a mile of public transit.
Types of ADUs Built by Cupertino Contractors
Skilled ADU builders in Cupertino are experienced in constructing a wide variety of unit types to suit different lot sizes and homeowner needs. The most common ADU types in the area include:
- Detached ADUs — standalone structures built in the backyard
- Attached ADUs — additions connected to the primary home
- Garage conversion ADUs — transforming existing garages into livable space
- Junior ADUs (JADUs) — units up to 500 square feet created within the existing home
Why Hire a Local ADU Contractor in Cupertino?
Hiring a licensed and experienced local ADU contractor familiar with Cupertino's specific permitting process, school district considerations, and neighborhood aesthetics is critical to a successful project. Local contractors understand the nuances of working with the Cupertino Community Development Department and can help streamline approvals, avoid costly delays, and ensure full compliance with both state and local building codes.
With the demand for housing in Silicon Valley showing no signs of slowing, investing in an ADU in Cupertino is a financially sound decision. Partner with a trusted Cupertino ADU contractor today to begin planning your project and unlock the full potential of your property.