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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Geico Builders offers ADU services including detached ADUs, attached ADUs, Junior ADUs, garage conversions, and home additions. Ideal for rental income, family housing, or maximizing space on your existing property.
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The ADU Dudes is a Bay Area & Northern California ADU contractor offering ADU construction, JADUs, garage conversions, home additions & new builds. Licensed under San Andres Construction (#1081083), serving San Jose, Oakland, Fremont & more.
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ENE Smarthome, Inc. is a Bay Area contractor offering home remodeling, ADU construction, smart home upgrades, and accessibility improvements. Services include garage conversions, granny flats, aging-in-place remodels, and SB9-compliant ADU projects.
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Green Living Builders LLC is a licensed, bonded Berkeley CA general contractor specializing in ADU construction, garage conversions, home remodels, and new builds across the East Bay. Diamond Certified with deep local expertise.
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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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CDU Inc. offers expert ADU construction & remodeling in the Greater Bay Area. Services include new builds, garage conversions, electrical, plumbing & custom design to boost property value & functionality.
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At Michael Marini Construction, we know that the journey starts with understanding both the potential and the requirements involved. With years of experience guiding clients through everything from design ideas to local building rules, we’re here to help make your ADU dreams become a reality while enhancing your property value.
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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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Remodeling Heroes is a licensed ADU contractor in the SF Bay Area offering garage conversions, detached ADUs, in-law suites, permits, and full project management for code-compliant, lot-smart accessory dwelling unit construction.
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We are a family-first, boutique residential design & build firm serving the Orinda and East Bay community. We’re not just service providers — we’re your neighbors. We understand the local permitting process, the hillside terrain, the fire-hazard restrictions, and the thoughtful planning needed to create homes that truly work for East Bay families.
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ADU Home Addition is a leading Bay Area ADU contractor with 12+ years of experience. They specialize in custom ADU construction, in-law suites, garage conversions, home additions, and rental-optimized ADUs, handling design, permits, and full construction.
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Bobcat Builders is a Bay Area ADU contractor specializing in accessory dwelling units in Palo Alto. They offer attached & detached ADUs, garage conversions, granny flats & in-law suites, backed by a Two Year Satisfaction Guarantee.
read moreLos 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.
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:
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:
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.