ADU Contractors near Cupertino, CA
DSA Architects
1107 Virginia Street, Berkeley, CA 94702
40.6 miles
DSA Architects designed an 850 sq. ft. second-floor ADU in Berkeley Hills for multi-generational living. Features 2 beds, 1 bath, open layout, Tilden Park views, roof deck, solar PV, heat pumps, and gray-water system.
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Valley Home Builders inc.
3466 Edward Avenue, Santa Clara, CA 95054
6.6 miles
Valley Home Builders Inc. is a Silicon Valley design-build contractor serving Santa Clara & San Mateo Counties. Founded in 2005, they specialize in kitchen remodeling, ADU construction, and home renovations across San Jose, San Mateo & bey... read more
Greenwood Custom Builders, Inc.
765 Old County Road, San Carlos, CA 94070
16.9 miles
ENE Smarthome, Inc.
690 Saratoga Avenue, San Jose, CA 95129
4 miles
ENE Smarthome, Inc. is a Bay Area contractor offering home remodeling, ADU construction, smart home upgrades, and accessibility improvements. Services include garage conversions, granny flats, aging-in-place remodels, and SB9-compliant ADU project... read more
Urban Building Workshop
130 Bush Street, San Francisco, CA 94104
38.1 miles
Urban 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.
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Santa Cruz Green Builders
303 Potrero Street, Santa Cruz, CA 95060
23.1 miles
Santa Cruz Green Builders offers design+build services in Santa Cruz with 17 years of experience. Specializing in ADUs, remodels, new homes & green building, they handle everything from design to construction using sustainable practices.
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AKD Homes
3518 Arden Road, Hayward, CA 94545
21.3 miles
AKD Homes is a SF Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design, permits, and construction, including detached ADUs, granny flats, and custom builds ranging from 400–750 sq. ft.
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Todd Jersey Architecture
1321 Eighth Street, Berkeley, CA 94710
40.8 miles
Todd Jersey Architecture (TJA) is a Berkeley-based sustainable design firm serving the SF Bay Area. Specializing in ADUs, remodels, new homes & historic preservation, TJA combines 30+ years of experience with a performance-driven, eco-consciou... read more
Gordon Reese
100 Pringle Avenue, Walnut Creek, CA 94596
40.8 miles
Gordon 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
Dwelling Lab
21 El Caminito, Walnut Creek, CA 94598
40.6 miles
Dwelling Lab is an Oakland-based ADU design firm offering full-service planning, schematic design, construction drawings, permitting, and construction oversight for detached ADUs, attached additions, and garage conversions.
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E&E General Construction Inc
601 21st, Richmond, CA
45.8 miles
E&E General Construction Inc (License #1067263) specializes in ADU construction and garage conversions in Richmond, CA. Services include detached ADUs, attached units, and garage conversions across the Bay Area. Free estimates available.
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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
Quality Choice Construction & Painting
900 Doolittle Drive, Oakland, CA 94577
28.9 miles
Quality Choice Construction & Painting offers ADU construction services including studio, 1-bedroom, and 2-bedroom units. Options include garage conversions, backyard cottages, and detached ADUs for rental income or multi-generational living.<... read more
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
Keller Williams Palo Alto
2825 El Camino Real, Palo Alto, CA 94306
9 miles
Acton ADU is a Bay Area ADU contractor founded by Stan Acton with 30+ years of experience. They offer full-service ADU design, construction, garage conversions, and permitting across San Jose and the broader Bay Area.
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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.