Junior ADU (JADU) in California
The Los Angeles ADU Builders
240 South Beverly Drive, Beverly Hills, CA 90212
Los Angeles ADU Builders is a licensed ADU contractor in Beverly Hills offering custom ADU design, garage conversions, detached ADUs, JADUs & in-law suites. CSLB certified, fully insured, with expert permit handling & transparent pricing.
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IA Builders
10736 Jefferson Blvd, Unit 703, Culver City, CA 90230
IA Builders is a Los Angeles construction company offering new home builds, remodeling, additions, and ADU construction. Services include garage conversions, detached ADUs, and in-law suites, delivered with quality craftsmanship and transparent pricing.
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GLAD Construction ADU Builders
3600 Madison Avenue, North Highlands, CA 95660
California offers ADU funding via CalHome, LEAP, LHTF, REAP, SB 2 grants & CDBG. Local programs in San Diego, San Jose & more aid homeowners. GLAD Construction ADU Builders guides projects from permits to completion.
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LRL Builders
1661 Botelho Drive, Walnut Creek, CA 94596
Bela Development
1023 Abbot Kinney Boulevard, Venice, CA 90291
Bela Development is an LA-based design-build firm with 15+ years specializing in ADU construction, garage conversions, detached ADUs, and JADUs. They manage design, permitting, and build under one roof, delivering legal living spaces that boost property value by 20–30%.
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CCS Inc.
5535 Balboa Boulevard, Encino, CA 91316
CCS Inc. offers ADU construction, garage conversions, remodeling & permit services in Long Beach, CA. Costs range from $100K–$400K+, with timelines of 4–14 months. Free consultations available for eligible residential properties.
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California Bay Builders & Remodeling
2150 N 1st Street Suite 400, San Jose, CA 95131
Bay Area design-build ADU specialists. One project, one point of contact — design, engineering, permitting, and construction from start to finish. CSLB #1130783.
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Jay Remodeling
15219 Sunset Boulevard, Los Angeles, CA 90272
Jay Remodeling is a licensed ADU contractor in Los Angeles offering attached, detached, garage conversion, basement, and Junior ADUs. They handle design, permitting, and construction, helping homeowners add rental income or family space while boosting property value.
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Build Method Construction
12304 Moorpark St. Ste 102, Studio City, CA 91604
Build Method Construction is a licensed ADU contractor in Los Angeles County with 25+ years of experience. They build detached ADUs, garage conversions, JADUs, and more—handling design, permits, and construction for single and multi-family properties.
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Collins Remodeling
2651 Blanding Avenue, Alameda, CA 94501
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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Pasadena Master ADU Builder
930 East Colorado Boulevard, Pasadena, CA 91106
Pasadena Master ADU Builder is a top ADU contractor in San Gabriel Valley, offering detached ADUs, garage conversions, and JADUs. With 20+ years experience, 150+ projects, and 98% satisfaction, they deliver compliant, high-quality builds boosting property value by 20–30%.
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Benavides Builders Inc
Thousand Oaks, CA
Benavides Builders Inc is a trusted ADU contractor specializing in detached & attached ADUs, garage conversions, JADUs, and hillside builds. They offer single & two-story units, granny flats, in-law suites, and casitas for residential properties.
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Stephens Brothers Construction
31779 Fallbrook Circle, Murrieta, CA 92563
Stephens Brothers Construction is Temecula & Murrieta's top ADU builder since 2011, offering detached ADUs, JADUs, garage conversions & casitas. Costs from $300–$350/sq ft. Licensed, hands-on, and serving all of Riverside County.
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The ADU Guru
3438 Troy Drive, Los Angeles, CA 90068
The ADU Guru is a full-service ADU contractor in Los Angeles & Orange County, specializing in garage conversions, detached ADUs & granny flats. With 100+ units completed, they offer $0 down, free 3D design & tenant placement.
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Gather ADU
19849 Nordhoff Street, Los Angeles, CA 91324
Gather ADU is a Los Angeles-based ADU specialist with 10+ years of experience and 127+ completed projects. Services include feasibility analysis, permits, financing, and construction for detached ADUs, garage conversions, attached ADUs, and JADUs across LA County.
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Other cities in California
What you need to know
Searching for top Junior ADU (JADU) ADU Contractors in California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Junior ADU (JADU) 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 Junior ADU (JADU) 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 Junior ADU (JADU) experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Junior ADU (JADU) ADU Contractors in California, and get started today.