ADU Contractors near Los Altos, CA
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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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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Alon Design & Remodeling
722 Charcot Avenue, San Jose, CA 95131
10.5 miles
Alon Design & Remodeling is a leading ADU contractor offering detached, attached, garage conversion, basement, and JADU options. ADUs boost property value, generate rental income, and provide independent living spaces with full amenities.
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AKD Homes
3518 Arden Rd, Hayward, CA 94545
17.5 miles
AKD Homes is a Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design and build, including detached ADUs, custom designs, and conversions from Berkeley to San Jose.
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Custom Home
2092 Concourse Drive, San Jose, CA 95131
11.6 miles
Custom Home is a Bay Area ADU contractor (CSLB #986048) with 160+ projects since 2005. They build detached, attached, junior ADUs & garage conversions across South Bay & Peninsula, with costs from $120K–$500K+.
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Mana Construction Inc
531 Ridge Ave, Vallejo, CA 94591
49.7 miles
Wellmade
2371 Verna Court, San Leandro, CA 94577
23.7 miles
Wellmade is a California prefab ADU builder specializing in panelized accessory dwelling units. Founded in 2020, they've completed 200+ projects, reducing construction waste by 85%. Serving CA, OR, and WA with all-inclusive pricing.
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ExpandADU | Prefab ADUs
41111 Mission Boulevard, Fremont, CA 94539
12.6 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
CityPaks
San Francisco, CA 95130
33.6 miles
CityPaks is a minority & woman-owned ADU builder in the San Francisco Bay Area specializing in affordable, sustainable backyard cottages & detached ADUs using SIP panels. No crane needed, no sales tax, pre-approved in San Jose.
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Dream Build Services
3654 Thornton Ave, Fremont, CA 94536
14.2 miles
Dream Build Services is a full-service ADU contractor in Fremont, CA, offering detached ADUs, garage conversions, basement conversions, and JADUs. Services include design, permits, electrical, plumbing, HVAC, and solar integration across the East ... read more
Second Dwellings
100 Higgins Canyon Road, Half Moon Bay, CA 94019
17.2 miles
ResCom ADU, LLC
675 Ygnacio Valley Rd B213, Walnut Creek, CA CA 94596
37.2 miles
ResCom ADU is a full-service ADU builder in Walnut Creek, CA, offering design, permits, engineering, construction & hookups. With 100+ years of combined experience, they deliver custom, cost-effective accessory dwelling units using SIPs & ... read more
AK Pahulu Construction
1353 B Street, Hayward, CA 94541
21.5 miles
AK Pahulu Construction, a licensed Bay Area general & concrete contractor since 2015, offers custom homes, ADUs, remodeling, framing & more. Serving Oakland, San Jose, Fremont & beyond. Projects range from $10K–$2M.
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Collins Remodeling
2651 Blanding Avenue, Alameda, CA 94501
28.7 miles
Collins Remodeling is a licensed ADU contractor in Alameda, CA, specializing in detached ADUs, garage conversions, JADUs, and granny flats. They manage permitting, design, and construction, helping homeowners add value and rental income.
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AKD Homes
3518 Arden Road, Hayward, CA 94545
17.5 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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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.