ADU Contractors near Cupertino, CA
Valley Boutique Builders
153 2nd Street, Los Altos, CA 94022
5.9 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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Custom Home
2092 Concourse Drive, San Jose, CA 95131
10.3 miles
Custom Home is a Bay Area ADU contractor (CSLB #986048) with 160+ projects since 2005. They build detached, attached, junior ADUs & garage conversions across South Bay & Peninsula, with costs from $120K–$500K+.
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SFBay ADU
111 North Market Street, San Jose, CA 95113
8.5 miles
SFBay ADU is a Bay Area ADU contractor offering full-service design, permitting, and construction. Specializing in 600–1,200 sq ft units, they offer studio, 2-bed, garden cottage, and in-law suite options, with projects completed in as little as 6 months.
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Edri Construction, Inc. San Francisco
701 Cortland Avenue, San Francisco, CA 94110
35.5 miles
Edri Construction, Inc. is a San Francisco-based ADU contractor offering full-service accessory dwelling unit construction across the Bay Area, including garage conversions, detached ADUs, granny flats, and energy-efficient home additions with in-house project management.
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Elite Construction Services Inc
347 Soquel Avenue, Santa Cruz, CA 95062
23.3 miles
Elite Construction Services Inc is a Santa Cruz County remodeling company with 20+ years of experience. They offer kitchen remodels, bathroom renovations, whole-home projects, and ADU construction across Aptos, Capitola, Soquel, and surrounding areas.
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CDU Inc.
#595 San Ramon Valley Blvd, Danville, CA 94526
35.2 miles
CDU Inc. offers expert ADU construction & remodeling in the Greater Bay Area. Services include new builds, garage conversions, electrical, plumbing & custom design to boost property value & functionality.
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Geico Builders
1901 Harrison Street, Oakland, CA 94612
35.9 miles
Geico Builders offers ADU services including detached ADUs, attached ADUs, Junior ADUs, garage conversions, and home additions. Ideal for rental income, family housing, or maximizing space on your existing property.
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ExpandADU | Prefab ADUs
41111 Mission Boulevard, Fremont, CA 94539
14.1 miles
ExpandADU is a California-based prefab ADU builder offering full-service accessory dwelling unit construction, including consultation, design, planning, and build. Serving the Bay Area and beyond, they specialize in detached ADUs, granny flats, and JADUs.
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Bayside Builders Group
1151 Harbor Bay Parkway, Alameda, CA 94502
30.4 miles
Bayside Builders Group is a licensed Bay Area ADU contractor with 25+ years of experience. Services include detached ADUs, garage conversions, and in-law suites. Serving Oakland, San Jose, San Francisco, and surrounding counties.
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Ability Drafting Services
19020 Karen Drive, Salinas, CA 93907
49.4 miles
ADUs are secondary residential units on the same lot as a primary home. Ability Drafting Services assists homeowners with ADU design and permitting, covering detached, attached, and garage conversion types, preparing full drawing sets for approval.
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Green Living Builders, LLC
833 Bancroft Way, Berkeley, CA 94710
40.2 miles
Green Living Builders LLC is a licensed, bonded Berkeley CA general contractor specializing in ADU construction, garage conversions, home remodels, and new builds across the East Bay. Diamond Certified with deep local expertise.
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California Building and Remodeling
1900 Camden Avenue, Albany, CA 95124
7.8 miles
California Building and Remodeling offers ADU construction, kitchen & bathroom remodeling, roofing, and concrete services in Albany, CA and the Bay Area. Experienced ADU contractor serving Albany, Berkeley, Richmond & more.
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Samara
2840 Bay Road, Redwood City, CA 94063
16.6 miles
Samara's Backyard ADU offers prefab accessory dwelling units for California homeowners. Five sizes available, including the 950 sq ft XL 10. Factory-built, fire-resistant, energy-efficient, with full-service permitting, installation & flexible financing.
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Bay Area Home Remodelers
225 Schwerin Street, San Francisco, CA 94134
33.7 miles
Bay Area Home Remodelers builds ADUs in Daly City, San Francisco & San Jose. Services include garage conversions, granny flats, JADUs & detached units. Full project support from permits to completion.
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亞華建築YAHUA CONSTRUCTION
650Bfremont Ave, Los Altos, CA 94024
5.9 miles
YAHUA Construction Inc. is a California-based licensed general contractor with 20+ years of experience. Specializing in ADUs, remodeling, MEP, roofing, and more, they serve the Bay Area with quality, sustainable construction.
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Other cities in California
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.