Junior ADU (JADU) near Mission Viejo, CA
Fullerton ADU Builder
125 North Euclid Street, Fullerton, CA 92832
24.5 miles
Fullerton ADU Builder offers expert ADU construction services including detached ADUs, garage conversions, JADUs, in-law suites & home additions. 10+ years experience, licensed & insured, transparent pricing, free consultations & full permit handling.
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Martins Construction Corp
1666 Courtney Ave., Los Angeles, CA 90046
47.4 miles
California's 2020 ADU laws allow two ADUs on single-family lots, reduced setbacks, larger units up to 800 sq ft, no owner-occupancy rules until 2025, faster approvals, and expanded parking exemptions statewide.
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Paramount Manufactured Sales
11759 Magnolia Avenue, Riverside, CA 92503
25.7 miles
Paramount Manufactured Sales in Riverside offers Skyline Homes-built ADUs for Southern California homeowners in LA, Orange, Riverside, San Bernardino & San Diego Counties. Models range from 479–849 sq ft. California law now allows detached ADUs up to 1,200 sq ft.
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Kuhlman Scott Architects
607 North Vulcan Avenue, Encinitas, CA 92024
43.2 miles
Kuhlman Scott Architects specializes in custom ADU design across San Diego County. Led by Todd Kuhlman, with 30+ years of experience, the firm creates detached ADUs, garage conversions, and JADUs tailored for quality, livability, and long-term property value.
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The ADU Pro
15338 Central Avenue, Chino, CA 91710
25.4 miles
The ADU Pro® is a licensed ADU contractor in Chino, CA, serving Fontana and Southern California. Specializing exclusively in ADU construction, they offer detached ADUs, garage conversions, and granny flats with a lifetime transferable warranty.
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Custom ADU Builder
113 West Santa Fe Avenue, Fullerton, CA 92832
23.7 miles
Full-service ADU contractor offering design, permitting, and construction of detached ADUs, attached ADUs, JADUs, and garage conversions. Most builds complete in 3–5 months. Includes quartz countertops, tile showers, and luxury vinyl flooring. Rental prep support available.
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Lunasol construction
5857 Owens Avenue, Carlsbad, CA 92008
40 miles
Lunasol Construction is a San Diego ADU contractor specializing in detached ADUs, garage conversions, and JADUs. They offer custom designs for in-law suites, rental units, and granny flats, helping homeowners add value and living space.
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King Home Remodeling
1012 West Beverly Boulevard, Montebello, CA 90640
39.1 miles
King Home Remodeling builds detached, attached, garage conversion, basement, and junior ADUs in Montebello. Services include design, permitting, construction, and inspections. Local zoning, size limits, and parking rules apply.
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Beach Builders Custom Homes
13001 Seal Beach Boulevard, Seal Beach, CA 90740
26.8 miles
Beach Builders Custom Homes offers full-service ADU and garage conversion services in Los Angeles and Orange County. From permits to construction, they build granny flats, backyard cottages, and JADUs with smart home tech, earning homeowners $1,200–$1,600/month.
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Calpacific Constracting
24024 Outrigger Drive, Canyon Lake, CA 92587
24.4 miles
Calpacific Contracting builds ADUs, casitas & garage conversions across Riverside, Orange, LA & San Bernardino Counties. 80+ years experience. Full-service: permits, design, construction & inspections handled end-to-end.
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Bourke Construction
30802 South Coast Hwy, Laguna Beach, CA 92651
8.5 miles
Bourke Construction builds custom ADUs in Orange County, including detached units, garage conversions, and JADUs. They manage design, permits, and construction, helping homeowners add rental income, multi-generational living space, or property value.
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What you need to know
Searching for top Junior ADU (JADU) ADU Contractors in Mission Viejo, 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 Mission Viejo 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.
Mission Viejo 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 Mission Viejo, California, and get started today.