Attached ADU in California
iHome Design & Remodel
614 South Euclid Street, Fullerton, CA 92832
iHome Design & Remodel specializes in custom ADU and casita construction, offering full-service builds from design to completion. Services include garage conversions, detached ADUs, permit handling, and free 3D consultations for homeowners.
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MTZ Contractors
3515 Atlantic Avenue, Long Beach, CA 90807
Looking for the best ADU construction? Choose Mtz Contractors Inc to completely transform your property, known for constructing excellent ADUs in Long Beach CA. We create and build Accessory Dwelling Units that meet your precise requirements for quality.
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Rosegold Builders, Inc.
358 South Abbott Avenue, Milpitas, CA 95035
Rosegold Builders builds custom ADUs across the Bay Area and Los Angeles, handling permits, zoning, and construction. Services include garage conversions, backyard cottages, and rental units designed to boost property value.
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LA Developing Inc.
8504 Firestone Boulevard, Downey, CA 90241
An Accessory Dwelling Unit (ADU) adds value, rental income, and flexibility to your property. LA Developing Inc. specializes in ADU construction in Los Angeles, offering garage conversions, detached builds, and attached additions with full project support.
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Epic Modulars
157 North 4th Street, San Jose, CA 95112
Epic Modulars delivers fast, flexible, and customizable solutions for homes and ADUs. Their manufactured homes and ADUs are built in controlled factory environments, ensuring superior quality, faster timelines, and predictable costs.
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IBA Builders
13743 Ventura Boulevard, Sherman Oaks, CA 91423
Garage conversion to ADU in Los Angeles requires structural upgrades, permits, and utility connections. IBA Builders evaluates ceiling height, slab condition, setbacks, and utility access before design begins, ensuring code compliance and accurate project scoping.
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Green Tech
5605 Woodman Avenue, Van Nuys, CA 91401
Green Tech Remodeling offers full-service construction, renovation, and ADU projects including garage conversions, kitchen and bathroom remodels, home additions, flooring, roofing, electrical, plumbing, and more, with 3D design previews included.
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ADU Ventura County
2734 Johnson Drive, Ventura, CA 93003
ADU Ventura County builds accessory dwelling units including detached ADUs, garage conversions, granny flats, and Casitas. With 10+ years of experience, they offer free consultations, budget estimates, and full construction management for Ventura County homeowners.
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West Coast Building and Design
9511 Nicole Way, Santee, CA 92071
West Coast Building and Design builds ADUs in California, including granny flats, garage conversions, and detached units. They help homeowners boost property value, house family members, or earn rental income through structured, process-driven construction.
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Cozy ADU
Citrus Heights, CA 95610
Cozy ADU is a full-service ADU contractor in Greater Sacramento, CA, building detached ADUs, garage conversions, guest houses & more. Turnkey process from permits to construction. Free consultation available.
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Marini Construction
11155 Foothill Avenue, Gilroy, CA 95020
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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DREC Construction Services
15338 Central Avenue, Chino, CA 91710
DREC Construction Services is a licensed ADU builder in Glendale, CA, with 10+ years of experience. They handle design, permitting, and construction of ADUs for rental income, family housing, and home offices, offering a transferable lifetime warranty.
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ASL Remodeling
690 Saratoga Avenue, San Jose, CA 95129
ASL Remodeling is a California licensed ADU contractor (CSLB #1060310) with 20+ years experience and 300+ completed projects. Services include detached ADUs, garage conversions, granny flats, JADUs, and in-law suites with full design-build support.
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Infinity ADU
645 West 15th Street, Long Beach, CA 90813
Infinity ADU is a top ADU contractor in Long Beach, CA, specializing in attached, detached ADUs, granny flats & garage conversions. They handle design, permitting & construction, ensuring full local code compliance for a stress-free build.
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ADU Designers & Builders
2461 East Orangethorpe Avenue, Fullerton, CA 92831
ADU Designers & Builders is a full-service ADU contractor in Fullerton, CA, offering detached ADUs, garage conversions, attached ADUs & JADUs across Southern California, with expert design, permitting, solar integration & 0% financing options.
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Other cities in California
What you need to know
Searching for top Attached ADU ADU Contractors in California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Attached ADU ADU Contractor in California ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Attached ADU professionals can guide you through every step.
California homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Attached ADU ADU Contractors in California, and get started today.