Junior ADU (JADU) near Costa Mesa, CA

Ohayon Construction is a licensed Los Angeles ADU contractor since 2008. They build detached ADUs, garage conversions, attached ADUs & JADUs. Serving Beverly Hills, Santa Monica & more. Free consultation available.

ADU Los Angeles (ADLA) is a specialized ADU contractor serving LA County. They offer consulting, custom design, construction, garage conversions, basement ADUs, attached and detached units, helping homeowners maximize property value.

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.

ADUs BY JACK is a full-service ADU contractor in Greater Los Angeles, led by Jack Topalian with 30+ years experience. Specializing in detached ADUs, garage conversions, JADUs, and granny flats across Burbank, Encino, Tujunga & more.

Custom ADU Builder specializes in detached ADUs, attached ADUs, garage conversions & JADUs. Projects complete in ~3 months. Pricing starts at $235/sqft. Turn-key builds include quartz countertops, tile showers & luxury vinyl flooring.

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.

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.

A1 ADU Contractor specializes in garage conversions and custom ADU construction throughout Los Angeles and the San Fernando Valley. With over 15 years of experience, our team provides complete design, permitting, and construction services to transform underutilized spaces into beautiful, functional living areas. Whether you're creating a rental unit, guest house, home office, or multi-family dwelling, we deliver high-quality craftsmanship and personalized solutions tailored to your needs.

Structura Remodeling is an LA-based licensed ADU contractor specializing in Accessory Dwelling Units, garage conversions & JADUs. Costs range $115K–$145K. Financing options include HELOC & construction loans. Free consultation available.

Sennikoff Architects, based in California, specializes in ADU design, custom homes, and remodels in Long Beach and Southern California. Led by licensed architect Steven Sennikoff, the firm offers detached ADUs, garage conversions, and JADUs with full permit coordination.

ADU Custom Homes is a licensed California ADU contractor with 35+ years of experience serving LA, Orange & Riverside counties. They specialize in detached ADUs, garage conversions & additions, managing projects from permits to Certificate of Occupancy.

Motif Architecture offers ADU, JADU, and garage conversion design services in Orange County, CA. Their five-phase process covers space planning, permitting, and construction. Projects include backyard cottages and garage-to-ADU conversions in Costa Mesa and Irvine.

Aspace Studios is an LA-based design-build firm specializing in ADUs and residential expansions. They handle detached, attached, garage conversion, and JADU projects, guiding homeowners through design, permitting, and construction.

SouthStar USA offers ADU construction in Riverside & Orange County, CA. Services include detached ADUs, attached ADUs, garage conversions & JADUs. Quality builds, permit-compliant, with transparent pricing for every project stage.