ADU Contractors near Sunnyvale, CA
Hamilton Exteriors
21634 Redwood Road, Castro Valley, CA 94546
24 miles
Hamilton Exteriors builds detached ADUs, garage conversions, and JADUs across 6 Bay Area counties. Licensed (CSLB #1078806), insured, and bonded. Projects run 5–9 months with fixed-price contracts. CalHFA grants and $0-down financing available.<... read more
Adria Design + Build
648 Paco Drive, Los Altos, CA 94024
4 miles
We guide you through design options and material choices, taking precise measurements to create a custom plan that perfectly fits your property. This careful planning ensures that your new ADU will seamlessly blend with your existing space and mee... read more
HDR Remodeling
5677 Horton Street, Emeryville, CA 94608
34.8 miles
HDR Remodeling is a Bay Area Design Build firm since 1987, specializing in kitchen remodels, bathroom renovations, and home improvements across Oakland, Berkeley, Alameda, and the East Bay, backed by an experienced team of architects and designers... read more
Eagle ADU
2678 North Main Street, Walnut Creek, CA 94597
37.6 miles
Eagle ADU is a licensed ADU builder in Northern California offering three signature models: Eagle Studio ($180K–$220K), Eagle One ($230K–$280K), and Eagle Two ($310K–$360K), with rental income potential up to $4,000/month.
read more
SOD Home Group
367 Santana Hts, San Jose, CA 95128
6.1 miles
SOD Home Group builds attached & detached ADUs, including granny flats, in-law suites, garage conversions & backyard cottages. Licensed ADU contractor (Lic. 942085) helping homeowners expand living space efficiently.
read more
ADU Premium - Eco Tiny Houses
3421 Hollis Street, Oakland, CA 94608
33.8 miles
ADU Premium builds eco-friendly, RVIA-certified tiny homes and ADA-accessible ADUs. Models range from 90–360 sq ft, starting at $49,200. Includes permits, delivery, and installation. Financing available via RV loans, HELOC, and more.
read more
King David Construction
3000 El Camino Real, Palo Alto, CA 94306
6.9 miles
King David Construction is a Palo Alto ADU contractor offering full-service design, permitting & construction across the Bay Area. Specializing in detached ADUs, garage conversions & in-law suites.
read more
Edri Construction, Inc. Mill Valley
1 Belvedere Pl, Mill Valley, CA 94941
46.2 miles
Edri Construction, Inc. is a Mill Valley-based Bay Area ADU contractor offering full-service accessory dwelling unit construction, including garage conversions, detached ADUs, JADUs, and in-law suites, with permit handling and energy-efficient bui... read more
Realty Builders Inc.
50 California Street, San Francisco, CA 94111
34.9 miles
Realty Builders Inc. is a licensed ADU contractor specializing in custom accessory dwelling units, including in-law suites, granny flats, garage conversions & rental units, offering streamlined permitting & guaranteed workmanship.
read more
Loona Construction Inc.
8407 Central Avenue, Newark, CA 94560
9.3 miles
Loona Construction Inc. is a San Francisco ADU contractor specializing in detached ADUs, garage conversions, attached ADUs, and JADUs. They handle design, permitting, and construction, helping homeowners add rental income or family housing.
read more
LiveLarge
2380 Qume Drive, Fruitdale, CA 95131
7.6 miles
LiveLarge Home is a California prefab ADU builder offering full-service solutions from permits to final inspection. Build times start at 4–6 weeks, with fixed pricing from $412/sq. ft. Models range from studios to 2-bed/2-bath units with premium... read more
Santa Cruz Construction Experts
303 Potrero Street, Santa Cruz, CA 95060
27.7 miles
Santa Cruz Construction Experts builds ADUs in Scotts Valley, CA, including detached units, granny flats & in-law suites. They also construct pool houses, garages & outdoor spaces, ensuring local code compliance.
read more
Optivest Build
1580 3rd Avenue, Walnut Creek, CA 94597
37.1 miles
Optivest Build is a licensed general contractor offering ADU construction, garage conversions, home additions, renovations, and new builds. They manage permits, design, and inspections, delivering residential and commercial projects on time and wi... read more
PCI Construction Inc
2682 Middlefield Road, Redwood City, CA 94063
12.5 miles
PCI Construction Inc is a trusted ADU contractor offering custom accessory dwelling units, garage conversions, granny flats, and in-law suites. Licensed, bonded, and insured, they handle permitting, design, and construction efficiently.
read more
Vargas Construction
16064 Vía Harriet, San Lorenzo, CA 94580
22.3 miles
Vargas Construction is a California ADU contractor offering detached, attached, garage, junior, and multifamily ADUs. They handle design, permitting, and construction with energy-efficient materials, custom interiors, and full amenities in 2–6 m... read more
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.