ADU Contractors near Sunnyvale, CA
Keller Williams Palo Alto
2825 El Camino Real, Palo Alto, CA 94306
6.9 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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Elite ADU Santa Cruz
347 Soquel Avenue, Santa Cruz, CA 95062
27.8 miles
Elite Construction builds ADUs in Santa Cruz County, offering detached units, garage conversions & addition ADUs. Projects range 250–1,200 sq ft, cost $115K–$450K, and take 6–9 months. Free estimates available.
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C.J. Skeeles General Contractor
24845 Canyon View Court, Hayward, CA 94541
19.7 miles
C.J. Skeeles General Contractor specializes in ADU construction in Hayward, Oakland & San Francisco, CA. Services include detached ADUs, garage conversions & interior conversions, all built to California zoning & permitting requirement... read more
Metricon Homes
2010 Crow Canyon Road, Suite 100, San Ramon, CA 94583
27.5 miles
Metricon Homes offers ADU construction and garage conversion services. Choose from 5 sizes: Marigold, Camellia, Magnolia, Dahlia, and Sunflower. Their Design to Doorstep process covers custom design to completion. Licensed contractor: Tobin Brinke... read more
DreamHome Remodeling & Builders
36 Harold Avenue, Santa Clara, CA 95050
5.1 miles
ExpandADU | Prefab ADUs
41111 Mission Boulevard, Fremont, CA 94539
9.5 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, an... read more
Urban Shore Builders
226 Delfino Avenue, Point Richmond, CA 94801
42.5 miles
Urban Shore Builders offers full-service ADU design & construction, including garage conversions, detached units & additions. As a turnkey ADU contractor, they handle permits, design & build. Services include plumbing, electrical, HVAC... read more
Aboveboard Construction
3950 Bramble Lane, Santa Cruz, CA 95062
28.8 miles
Aboveboard Construction Inc. serves Santa Cruz County & Los Gatos with 20+ years in residential construction. Services include new homes, ADUs, remodels, additions, kitchens, bathrooms, decking, fencing & repairs.
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ADU Builders Group
15166 Los Gatos Boulevard, Los Gatos, CA 95032
10.1 miles
ADU Builders Group is a Bay Area family-owned ADU contractor with 21+ years of experience. They build attached, detached, converted, and junior ADUs, offering full design-build services, permitting support, a 3-year warranty, and a 10-year structu... read more
Bay Builders & Remodeling
800 Charcot Avenue, San Jose, CA 95131
6.5 miles
Bay Builders & Remodeling specializes in custom ADU construction across Santa Clara, San Mateo, and East Bay. Services include attached, detached, garage conversions, and JADUs, helping homeowners add rental income, family housing, or workspac... read more
Intelligent Choice Builders
1437 Park Avenue, San Jose, CA 95126
6.9 miles
Intelligent Choice Builders is a licensed Bay Area ADU contractor serving Palo Alto, Cupertino, San Jose & Sunnyvale. They build detached ADUs, garage conversions, granny flats & more, managing permits, design & construction end-to-end... read more
Andrew G. Construction
2000 Broadway Ste. #152, Redwood City, CA 94061
13.1 miles
Home by Tom
1990 North California Boulevard, Walnut Creek, CA 94596
36.2 miles
Home by Tom is a Bay Area ADU contractor with 21+ years of experience serving Walnut Creek. They build detached ADUs, attached ADUs, and garage conversions, managing design, permits, and construction for rental income or multi-generational living.... read more
Harmony Design & Development
5880 3rd Street, San Francisco, CA 94124
34.6 miles
Harmony Design & Development builds custom ADUs across the San Francisco Bay Area, including detached units, garage conversions, and in-law suites. They manage permits, design, and construction from start to finish.
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Reno Revive Remodeling
2655 Stanwell Drive, Concord, CA 94520
41.5 miles
Whether you’re planning a rental unit, a guest house, or a private suite for family, RenoRevive will help you design and build a fully functional ADU that fits your needs, your lot, and your long-term goals.
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Other cities in California
What you need to know
ADU Contractors in Sunnyvale: Building in the Heart of Silicon Valley
Sunnyvale, California, sits at the core of Silicon Valley, making it one of the most competitive housing markets in the nation. With a median home price well above the national average and a dense population of tech professionals, the demand for additional living space has never been higher. ADU contractors in Sunnyvale are uniquely positioned to help homeowners maximize their property value while addressing the city's ongoing housing shortage. Whether you're looking to house family members or generate rental income, building an Accessory Dwelling Unit (ADU) in Sunnyvale is a smart investment.
Sunnyvale ADU Regulations and Zoning Requirements
Before breaking ground, it's essential to understand Sunnyvale's specific ADU regulations. The city follows California state law (AB 68, SB 9, and related legislation) while also enforcing its own local guidelines. Key rules that experienced ADU contractors in Sunnyvale, CA 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 setback is typically required for new detached ADUs.
- Height limits: Detached ADUs are generally limited to 16 feet in height, though this can vary based on proximity to the main structure.
- Owner-occupancy: Sunnyvale has suspended owner-occupancy requirements in line with California state law through at least 2025.
- Parking: ADUs within half a mile of public transit may be exempt from additional parking requirements.
Types of ADUs Built by Sunnyvale Contractors
Skilled ADU builders in Sunnyvale work on a variety of unit types to suit different lot sizes and homeowner goals. The most common types include:
- Detached ADUs: Standalone structures built in the backyard, offering maximum privacy.
- Attached ADUs: Units connected to the primary home, sharing at least one wall.
- Garage Conversions: Transforming an existing garage into a livable space, a popular and cost-effective option in Sunnyvale.
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing footprint of the primary residence.
Why Hire a Local ADU Contractor in Sunnyvale?
Working with a licensed ADU contractor familiar with Sunnyvale's permitting process can save you significant time and money. Local contractors understand the city's Community Development Department requirements, can efficiently submit plans through Sunnyvale's online permitting portal, and have established relationships with local inspectors. Given the high cost of land and construction in Santa Clara County, hiring an experienced professional ensures your project stays on budget and complies with all local codes.
From permit acquisition to final inspection, the right Sunnyvale ADU contractor will guide you through every step of the process, helping you unlock the full potential of your property in one of California's most desirable cities.