ADU Contractors near Los Altos, CA
Northbay Home Solutions
47 Paul Drive, San Rafael, CA 94903
47 miles
Northbay Home Solutions offers full-service ADU construction in San Rafael, San Francisco & North Bay. Services include detached ADUs, garage conversions & JADUs, covering design, permits & build.
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E&E General Construction Inc
601 21st, Richmond, CA
41.5 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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LRL Builders, Inc.
1661 Botelho Drive, Walnut Creek, CA 94596
36.4 miles
LRL Builders, Inc. is a licensed ADU contractor in Walnut Creek, CA, specializing in detached, attached, garage conversion, and junior ADUs. They handle design, permitting, and construction, serving Walnut Creek and surrounding Bay Area communities.
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OCA Builders | Construction Company & ADU Contractor
245 20th Avenue, Santa Cruz, CA 95062
28.2 miles
OCA Builders is a trusted Santa Cruz general contractor specializing in ADU construction, custom homes, kitchen & bathroom remodeling, room additions, and commercial build-outs, delivering quality craftsmanship with deep local zoning expertise.
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DSA Architects
1107 Virginia Street, Berkeley, CA 94702
36.4 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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Larson Shores Architects
1295 Alabama Street, San Francisco, CA 94110
33.7 miles
Larson Shores Architects is a San Francisco-based firm offering residential, ADU, and commercial design services. Founded in 2007 by Josh Larson, they specialize in new builds, garage conversions, in-law suites, and full permit navigation across the Bay Area.
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Apex Homes ADU Design-Builder
10050 North Foothill Boulevard, Cupertino, CA 95014
3.5 miles
Apex Homes is a full-service ADU builder in the South Bay Area, serving Campbell, Palo Alto & South San Jose. They offer detached ADUs, granny flats & in-law suites, with pre-designed floor plans from $185,000.
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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, garage conversions & in-law suites.
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Baystar - Garage Remodel
2074 Walsh Avenue, Santa Clara, CA 95050
7.4 miles
Bay Star Garage transforms garages into functional spaces in Santa Clara & Livermore, CA. Services include remodeling, flooring, EV charging, lighting, conversions & cabinets. Licensed, bonded & insured contractor specializing in ADUs and garage upgrades.
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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 6 months.
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ADORE Homes
180 East Sunnyoaks Avenue, Campbell, CA 95008
10.4 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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Vought Construction
734 Gilman Street, Berkeley, CA 94710
37 miles
Imagine the possibilities that a beautifully crafted ADU (accessory dwelling unit) brings to your Berkeley or Bay Area property. Whether it’s creating a cozy retreat for guests, a comfortable living space for family members, or an additional source of income through rental, design your ADU to enrich your life.
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ADU Crew
6680 Alhambra Avenue, Martinez, CA 94553
43.9 miles
Your Prefab ADU will be delivered and installed to your site. All ready to enjoy a sustainable home to last for generations.
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Reno Revive Remodeling
2655 Stanwell Drive, Concord, CA 94520
42.6 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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SF Bay ADU
111 North Market Street, San Jose, CA 95113
11.3 miles
SF Bay ADU is a full-service Bay Area ADU contractor offering design, permitting, and construction for units from 600–1,200 sq ft. Options include studio, 2bed/2bath, garden cottage, and in-law suites for rental income or multigenerational living.
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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.