Garage Conversion in California
Peck General Construction
18734 Lilac Street, Hesperia, CA 92345
Peck General Construction builds ADUs in Orange County, Los Angeles & Inland Empire. Services include garage conversions, detached backyard cottages & granny flats. Full-service from permits to final inspection under a Design-Build model.
read more
G.J. Gardner Homes Sacramento
700 Alhambra Boulevard, Sacramento, CA 95816
An ADU (accessory dwelling unit) is a self-contained living space on the same property as a primary home. G.J. Gardner Homes Sacramento offers expert ADU construction in California, guiding clients through a 7-step process from consultation to handover.
read more
ADU Builders Group
15166 Los Gatos Boulevard, Los Gatos, CA 95032
ADU Builders Group is a Bay Area family-owned ADU contractor with 21+ years of experience. They build attached, detached, converted, and junior ADUs, offering full design-build services, permitting support, a 3-year warranty, and a 10-year structural guarantee.
read more
Homes by Hedges
PO Box 2586, Valley Center, CA 92082
Homes by Hedges is an experienced ADU contractor in North San Diego County, building granny flats, casitas & garage conversions. Serving Valley Center, Escondido & more for 25+ years, managing permits & local zoning regulations.
read more
Hubbell & Hubbell Architects, Inc.
1970 Sixth Avenue, San Diego, CA 92101
Accessory Dwelling Units (ADUs) add value and flexibility to California properties. Learn about ADU regulations, design options like garage conversions, and how Hubbell & Hubbell Architects can help you build a compliant granny flat or guest house.
read more
CSL Quality Construction
659 3rd Avenue, Chula Vista, CA 91910
CSL Quality Construction is a trusted ADU contractor in San Diego County, offering full-service design, permits, construction, and renovations. ADUs can boost property value by 20–30% and generate rental income.
read more
Fullerton ADU Builder
125 North Euclid Street, Fullerton, CA 92832
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.
read more
DevArt8 Builders
1828 South Milpitas Boulevard, Milpitas, CA 95035
DevArt8 Builders specializes in ADU construction in Gilroy, offering floor plans from 350–650 sq. ft. They handle permits, ensure zoning compliance, and build detached ADUs, attached units, and garage conversions tailored to each property.
read more
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.
read more
Aurea Construction
516 Pennsfield Place, Thousand Oaks, CA 91360
Aurea Construction, based in Thousand Oaks, CA, specializes in ADUs, garage conversions, room additions, sunrooms & second story additions. They manage full projects from design to permits, serving local homeowners seeking quality home expansion solutions.
read more
MyADU4Less
579 West County Line Road, Calimesa, CA 92320
MyADU4Less is a Southern California ADU builder specializing in prefabricated accessory dwelling units. Offering models from 160–1,200 sq ft, they handle design, permitting, and construction. CalHFA grants up to $40,000 may apply.
read more
K&S Design Build
11115 Aqua Vista Street, Los Angeles, CA 9160
K&S Design Build specializes in ADU construction and garage conversions, offering full design-build services from concept to completion. They handle permits, city regulations, and create granny flats, in-law suites, backyard cottages, and rental units.
read more
Velazquez Construction
156 Casillas Avenue, Freedom, CA 95019
Velazquez Construction is a licensed, bonded general contractor (Lic. #1081720) with 18+ years serving Watsonville, Santa Cruz, Monterey & San Jose. Specializing in ADUs, garage conversions, remodels & home additions.
read more
San Diego ADU Specialists
347 3rd Avenue, Chula Vista, CA 91910
San Diego ADU Specialists, a division of Wizdom Construction Inc., builds custom ADUs, granny flats & garage conversions. Services include new construction, design, and renovations—boosting property value and rental income.
read more
OCA Builders
331 Soquel Avenue, Santa Cruz, CA 95062
OCA Builders offers ADU design & construction in Santa Cruz County, including detached, attached, garage conversion, internal & junior ADUs. They use county-approved floor plans to streamline permitting and reduce timelines.
read more
Other cities in California
What you need to know
Searching for top Garage Conversion ADU Contractors in California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Garage Conversion 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 Garage Conversion 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 Garage Conversion experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Garage Conversion ADU Contractors in California, and get started today.