Detached ADU in California
Realty Builders Inc.
50 California Street, San Francisco, CA 94111
Realty Builders Inc. is a licensed ADU contractor specializing in custom accessory dwelling units, including in-law suites, granny flats, garage conversions & rental units, offering streamlined permitting & guaranteed workmanship.
read more
YOR Construction
12135 Miranda Street, Valley Village, CA 91607
An ADU (accessory dwelling unit) is a secondary home on a residential lot. Garage conversion ADUs are cost-effective options. YOR Construction, an LA-based ADU contractor, specializes in garage conversions tailored to homeowner needs.
read more
EG CONSTRUCTION | ADU Builder San Diego
2434 Fenton Street, Chula Vista, CA 91914
EG Construction is a trusted San Diego ADU builder offering full-service design, permits & construction. They provide a Price Guarantee & 60-Day Completion Guarantee. Serving all of San Diego County. License #864642.
read more
Buildwright Construction
5320 Satsuma Avenue, North Hollywood, CA 91601
Buildwright Construction offers full-service ADU construction, including detached ADUs, granny flats, in-law suites, and JADUs. They handle planning, permits, and building, helping property owners add rental income, guest space, or multi-generational living.
read more
JC Construction & Remodeling
4909 Auburn Boulevard, Sacramento, CA 95841
JC Construction & Remodeling is a Sacramento ADU builder with 26+ years of experience and 426+ completed projects. Services include detached ADUs, garage conversions, room additions, and remodels across Sacramento, Roseville, Folsom, and nearby areas.
read more
Sacramento ADU Builder
180 Promenade Circle, Sacramento, CA 95834
Sacramento's trusted ADU builder specializes in designing and constructing Accessory Dwelling Units. Licensed contractors offer quality work, on-time delivery, and competitive pricing, helping homeowners boost property value, earn rental income, and house family members.
read more
Calpacific Constracting
24024 Outrigger Drive, Canyon Lake, CA 92587
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.
read more
Bundle ADU
545 East Clark Avenue, Orcutt, CA 93455
Bundle ADU is a California-based full-service ADU contractor offering custom accessory dwelling units from 400–1,200 sq ft, starting at $200/sq ft. Services include design, permitting, and construction with ~4-month build times.
read more
Level Up Contractor
6700 Fallbrook Avenue, West Hills, CA 91307
Level Up Contractor is an ADU builder in Los Angeles offering garage conversions, detached ADUs, and JADUs. Services include full permitting, design-build, and LADBS coordination. Costs range from $100K to $450K depending on project type.
read more
LNL Construction
8698 Elk Grove Blvd, Elk Grove, CA 95624
LNL Construction is a Sacramento ADU contractor offering full-service builds, from design to completion. Founded by Landon Linville with 30+ years experience, they handle permits, zoning, and all ADU types. Costs range from $150K to $300K+.
read more
Snap ADU
1223 Cleveland Avenue, San Diego, CA 92103
SnapADU is San Diego's largest detached ADU design-build company, completing 100+ builds with a 4.9+ rating. They offer in-house design, permitting, and construction with fixed pricing across San Diego County.
read more
US Modular Inc.
579 West County Line Road, Calimesa, CA 92320
US Modular Inc. is a trusted ADU builder in Riverside County, CA, with 35+ years of experience. They offer prefab ADUs, garage conversions & casitas starting at $150,000, completed in 6–9 months.
read more
ADU by Kn Remodeling
19709 Ventura Boulevard, Woodland Hills, CA 91364
KN Remodeling is a certified ADU contractor serving Los Angeles, Woodland Hills, Simi Valley & Thousand Oaks. Specializing in detached ADUs, attached ADUs & garage conversions, they handle design, permits & construction with 100+ ADU plans completed.
read more
Forever Builders Inc
9619 Chesapeake Drive, San Diego, CA 92123
Forever Builders Inc is San Diego's premier ADU contractor, specializing in granny flats, in-law suites, and detached accessory dwelling units. They handle design, permitting, construction, and finishing, delivering high-quality, custom ADU solutions for homeowners.
read more
GR Innovative Builders Inc.
12488 San Pablo Avenue, Richmond, CA 94805
GR Innovative Builders Inc. is a Bay Area ADU contractor specializing in accessory dwelling units, granny flats, and in-law suites. Completed projects in Richmond, Oakland, Lafayette & Pinole. Featured in Sunset Magazine.
read more
Other cities in California
What you need to know
Searching for top Detached 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 Detached 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 Detached 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 Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Detached ADU ADU Contractors in California, and get started today.