Detached ADU in California
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.
read more
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.
read more
Bay Area Home Remodelers
225 Schwerin Street, San Francisco, CA 94134
Bay Area Home Remodelers builds ADUs in Daly City, San Francisco & San Jose. Services include garage conversions, granny flats, JADUs & detached units. Full project support from permits to completion.
read more
KGM Construction
1508 Mill Street, San Luis Obispo, CA 93401
Founded in 1986 by Mike Morain, KGM Construction is an A+ BBB-rated contractor offering residential remodeling, new home construction, ADUs, granny flats, garage conversions, commercial builds, and storm damage restoration with 35+ years of experience.
read more
Adapt Dwellings
5944 Claremont Avenue, Oakland, CA 94618
ADUs add rental income & property value. Services include garage conversions, detached ADUs, JADUs & granny flats. ADU Feasibility Studies cover code, utilities & ROI. Architectural services via Adapt Dwellings ensure smooth approval to construction.
read more
Soliz General Construction & Painting Inc
10069 Bernhardt Drive, Oakland, CA 94603
Soliz General Construction & Painting Inc is a Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design and construction, including permits, structural work, and finishing for granny flats, in-law suites, and backyard cottages.
read more
Katz Design & Builders inc
316 Culver Boulevard, Playa Del Rey, CA 90293
Katz Design & Builders Inc offers full-service ADU construction across Los Angeles and Orange County. Services include detached ADUs, garage conversions, attached ADUs, and JADUs, all built to California Title 24 and local zoning standards.
read more
Aspace Studios
p.o. box 851, Glendora, CA 91741
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.
read more
Dagan Design & Construction
1106 2nd Street, Encinitas, CA 92024
Dagan Design & Construction (DDC), founded in 2012 in Encinitas, CA, offers custom home design, luxury renovations, interior design, and general contracting across Southern California and nationwide.
read more
New Birth Builders
11500 West Olympic Boulevard, Los Angeles, CA 90064
New Birth Builders believes that a room addition or Garage Conversion is a great way to increase your home’s value and this new space can be used in a variety of ways. For most homeowners adding a room is less cost efficient and stressful than having to sell their home and move to a bigger home.
read more
EHM Construction
3966 Falcon Street, San Diego, CA 92103
EHM Construction offers ADU design and building services in San Diego, CA. Projects include detached two-story ADUs with roof decks, garages, and scenic views in neighborhoods like Mission Hills and South Park.
read more
USA Builders Pro
2900 Bristol Street, Costa Mesa, CA 92626
USA Builders Pro offers 20+ years of ADU construction and home addition services. Specializing in detached & attached ADUs, room additions, permits, and zoning compliance, they help homeowners boost property value and living space.
read more
Sten Engineering
601 South Brand Boulevard, San Fernando, CA 91340
Sten Engineering is a Los Angeles firm specializing in ADU design, structural engineering, and garage conversions. Led by licensed P.E. Evgeny Nagovitsyn, they handle permits, structural plans, and ADU builds across Southern California.
read more
CRS Builders Inc.
4891 Ronson Court, San Diego, CA 92111
Expert ADU builder serving San Diego, including La Jolla, Chula Vista & Encinitas. Full-service accessory dwelling unit construction: planning, design & permitting. In-house team ensures quality granny flats & backyard cottages built to code.
read more
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.
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.