ADU Contractors near Cupertino, CA
Parsa Construction
1105 Fair Weather Circle, Concord, CA 94518
43.7 miles
Parsa Construction offers residential & commercial remodeling, ADU construction, and retrofit services. Specializing in kitchen, bathroom, room additions, and accessory dwelling units like granny flats and detached ADUs, they manage permits, d... read more
Type Five
1336 Channing Way, Berkeley, CA 94702
40 miles
Type 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
Top Rated Builders
5450 Thornwood Drive, San Jose, CA 95123
11.2 miles
At Top Rated Builders, we offer expert ADU construction services tailored to meet your specific needs. Whether you’re looking to add a studio ADU, a one-bedroom ADU, or a larger family unit, our experienced team will guide you through the entire... read more
Quartz Construction
1777 Hamilton Avenue, San Jose, CA 95125
7.3 miles
Quartz Construction builds ADUs in San Jose, including detached units, garage conversions, and in-law suites. ADUs offer extra space, passive rental income, and multigenerational living solutions for Bay Area homeowners.
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Step-up Construction
398 Bay Street, San Jose, CA 95123
13.2 miles
Step-up Construction is a San Jose ADU contractor specializing in garage conversions, attached additions, and detached backyard ADUs. Costs range from $80K to $475K. They guide homeowners through permits, zoning, and San Jose's ADU regulations.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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Decor Builders
800 Charcot Avenue, San Jose, CA 95131
9 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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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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ADORE Homes
180 East Sunnyoaks Avenue, Campbell, CA 95008
6.1 miles
ADORE 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.
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Eco Scale Construction
Sunnyvale, CA 94085
5.1 miles
Eco Scale Construction builds ADUs in Sunnyvale, Los Altos & Palo Alto, CA. Services include detached ADUs, garage conversions & JADUs. Costs range from $80K–$400K+. Fully compliant with California ADU regulations.
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Element Home Remodeling
800 West El Camino Real, Mountain View, CA 94040
5.2 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 Jos... read more
Alon Design & Remodeling
722 Charcot Avenue, San Jose, CA 95131
9.1 miles
Alon Design & Remodeling is a leading ADU contractor offering detached, attached, garage conversion, basement, and JADU options. ADUs boost property value, generate rental income, and provide independent living spaces with full amenities.
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Mission Home Remodeling
475 Gough Street, San Francisco, CA 94102
37.9 miles
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
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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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.