ADU Contractors near Los Altos, CA
Burton Builders LLC
32 9th Street, Richmond, CA 94801
41.6 miles
Burton Builders LLC is a trusted construction company specializing in ADU construction, single-family, multifamily, and commercial builds. Known for quality workmanship and client-focused service, they deliver expert results on every project.
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Regency Construnction & Remodeling BA
The Paramount, 95 3rd St, San Francisco, CA 94103
33.4 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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San Francisco ADU Solutions
967 Connecticut Street, San Francisco, CA 94107
33.7 miles
ADUs (accessory dwelling units) are self-contained homes on existing properties. California's 2020 laws simplified ADU permits statewide. Alpha ADU Solutions, a San Francisco-based ADU builder with 100+ team members, specializes in granny flats, g... read more
SFBay ADU
111 North Market Street, San Jose, CA 95113
11.3 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... read more
Element Homes
188 Acalanes Drive, Sunnyvale, CA 94086
3.9 miles
Element Homes is a California ADU contractor offering full-service design, permitting, and construction. They build detached ADUs, garage conversions, and in-law suites across the Bay Area, with in-house teams, warranties, and free estimates.
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Greenwood Custom Builders, Inc.
765 Old County Road, San Carlos, CA 94070
12.5 miles
GR Innovative Builders Inc.
12488 San Pablo Avenue, Richmond, CA 94805
41.5 miles
GR Innovative Builders Inc. is a Bay Area ADU contractor specializing in accessory dwelling units, granny flats, and in-law suites. Completed projects in Richmond, Oakland, Lafayette & Pinole. Featured in Sunset Magazine.
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Aboveboard Construction
3950 Bramble Lane, Santa Cruz, CA 95062
28.2 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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Kyvos Construction
430 Railroad Avenue, Pittsburg, CA 94565
46.2 miles
Kyvos Construction offers home remodeling & ADU construction in Concord, CA. Services include kitchen & bathroom renovations, room additions, garage conversions, detached & attached ADUs, granny flats, and in-law suites.
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Eco Scale Construction
Sunnyvale, CA 94085
4.6 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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Top Rated Builders
5450 Thornwood Drive, San Jose, CA 95123
15.3 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
Andrew G. Construction
2000 Broadway Ste. #152, Redwood City, CA 94061
10.9 miles
DevArt8 Builders
1828 South Milpitas Boulevard, Milpitas, CA 95035
11.6 miles
DevArt8 Builders specializes in ADU construction in Gilroy, offering floor plans from 350–650 sq. ft. They handle permits, ensure zoning compliance, and build detached ADUs, attached units, and garage conversions tailored to each property.
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Manzanita Design Build
408 48th Street, Oakland, CA 94609
33.4 miles
Manzanita Design Build is an East Bay ADU contractor specializing in accessory dwelling units. Serving Berkeley, Oakland, Alameda & more. New ADU construction starts ~$300K, 5–8 month build time. Licensed (#1034108) & insured.
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Vargas Construction
16064 Vía Harriet, San Lorenzo, CA 94580
22.8 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 Los Altos: Building in One of Silicon Valley's Most Prestigious Communities
Los Altos, California, is one of the most affluent and sought-after communities in Santa Clara County, consistently ranking among the wealthiest cities in the United States. With median home values well above $3 million and a strong demand for housing in the heart of Silicon Valley, ADU contractors in Los Altos are experiencing a significant surge in project requests. Homeowners are increasingly turning to Accessory Dwelling Units (ADUs) as a smart way to add rental income, house family members, or increase overall property value in this competitive real estate market.
Los Altos ADU Regulations and Zoning Requirements
Working with an experienced ADU contractor in Los Altos is essential because the city follows California state ADU law while also maintaining its own local guidelines under the jurisdiction of Santa Clara County planning regulations. Los Altos is a predominantly single-family residential community, and most properties fall under R1 zoning. Key regulations that ADU 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 setback is required for newly constructed detached ADUs.
- Height limits: Detached ADUs are typically limited to 16 feet in height.
- Owner-occupancy rules: As of 2020, California state law removed owner-occupancy requirements until 2025, giving Los Altos homeowners more flexibility.
- Parking requirements: One replacement parking space may be required if an existing garage is converted, though many exemptions apply.
Types of ADUs Built by Los Altos Contractors
Skilled ADU builders in Los Altos work on a variety of project types to suit the unique needs of local homeowners. Given the large lot sizes common in Los Altos, detached ADUs are particularly popular. Common ADU types include:
- Detached backyard cottages or guest houses
- Garage conversions and detached garage ADUs
- Attached ADUs with separate entrances
- Junior ADUs (JADUs) created from existing interior space
Why Hiring a Local ADU Contractor in Los Altos Matters
Choosing a licensed and experienced ADU contractor familiar with Los Altos can make a significant difference in your project's success. Local contractors understand the nuances of working with the City of Los Altos Community Development Department, navigating permit timelines, and meeting the high design standards expected in this upscale community. They also have established relationships with local inspectors and subcontractors, helping to keep your project on schedule and within budget.
Whether you're looking to create a multigenerational living space, generate passive rental income, or simply maximize your property's potential, partnering with a qualified ADU contractor in Los Altos, CA is the first step toward a successful build in one of California's most desirable cities.