Detached ADU in California
Kitchenfer
7500 Mason Avenue, Winnetka, CA 91306
Kitchenfer is a residential remodeling contractor specializing in kitchen renovation and home improvement. They may also support ADU projects, garage conversions, and in-law suites. Contact them to confirm services and licensing.
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ADU Premium - Eco Tiny Houses
3421 Hollis Street, Oakland, CA 94608
ADU Premium builds eco-friendly, RVIA-certified tiny homes and ADA-accessible ADUs. Models range from 90–360 sq ft, starting at $49,200. Includes permits, delivery, and installation. Financing available via RV loans, HELOC, and more.
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Risecon
2408 Professional Drive, Roseville, CA 95661
Risecon North America is a Sacramento ADU builder and home renovation contractor with 25+ years of experience. They offer on-site ADU construction, home remodeling, permits, in-house design, financing, and a workmanship warranty across California.
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SOD Home Group
367 Santana Hts, San Jose, CA 95128
SOD Home Group builds attached & detached ADUs, including granny flats, in-law suites, garage conversions & backyard cottages. Licensed ADU contractor (Lic. 942085) helping homeowners expand living space efficiently.
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Santa Cruz Construction Experts
303 Potrero Street, Santa Cruz, CA 95060
Santa Cruz Construction Experts builds ADUs in Scotts Valley, CA, including detached units, granny flats & in-law suites. They also construct pool houses, garages & outdoor spaces, ensuring local code compliance.
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SDS Homes
42400 Winchester Road, Temecula, CA 92590
SDS Homes Construction is a Temecula, CA design-build contractor specializing in ADUs, granny flats, and Casitas. They offer turnkey services from design to permitting and construction, serving Temecula and Murrieta homeowners.
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A1 Building Contractors LLC
7630 Sierra drive, Granite Bay, CA 95746
A1 Building Contractors LLC offers general contracting, renovation, and ADU construction services. Specializing in detached ADUs, garage conversions, JADUs, and in-law suites, they manage permits, trades, and timelines for residential and commercial projects.
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ADU4Life
9940 Haskin Ranch Road, Newcastle, CA 95658
ADU4Life is a California-based ADU construction company founded in 2016, offering design, permit, and build services for backyard cottages, granny flats, and in-law suites, with 80+ ADUs completed statewide.
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Framework First ADUs
1610 Moffett Street, Salinas, CA 93905
Framework First is a family-owned ADU builder in Monterey County, CA, with 40+ years of experience. They offer modular ADUs from 450–1,200 sq ft, handling permits, delivery, and installation with transparent pricing.
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Ghouse Technologies
20720 Ventura Blvd Suite 100, Los Angeles, CA 91364
Ghousetechnologies is a California ADU contractor offering steel frame accessory dwelling units. Models range from 360–1,200 sq ft. Builds are fire, flood, earthquake, and hurricane-resistant, eco-friendly, and completed faster than traditional construction.
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USModular Inc.
579 West County Line Road, Calimesa, CA 92320
USModular Inc. is a Temecula, CA ADU builder specializing in modular, prefabricated construction. Units are up to 90% factory-built, completed in ~120 days, and comply with IRC and local codes. Services include feasibility studies, design, engineering, permitting, and installation.
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Superior ADUs
6 Venture, Irvine, CA 92618
The Springfield by Superior ADUs is a 2-bed, 2-bath detached ADU with open-concept living, vaulted ceilings, mini-split HVAC, kitchen island, ample storage, and optional ethanol fireplace—ideal as a granny flat or in-law suite.
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Concept Renovations Inc.
16001 Ventura Boulevard, Encino, CA 91436
Concept Renovations Inc. is a Southern California design-build company with 20+ years in residential remodeling, ADU construction, and garage conversions. They manage design, permitting, and build phases, serving Los Angeles homeowners.
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Infinity ADU
645 West 15th Street, Long Beach, CA 90813
Infinity ADU is a top ADU contractor in Long Beach, CA, specializing in attached, detached ADUs, granny flats & garage conversions. They handle design, permitting & construction, ensuring full local code compliance for a stress-free build.
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Leon's Construction Inc.
3333 Vaca Valley Parkway, Poway, CA 95688
Leon's Construction Inc. offers ADU construction services in Escondido, Encinitas, and San Marcos, CA. They build backyard cottages, basement apartments, tiny homes, and more using durable, energy-efficient materials.
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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.