Detached ADU in California

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.

EcoSmart Builders is a licensed Southern California ADU contractor specializing in accessory dwelling units, home expansions, and fire rebuilds. Serving Los Angeles County, they manage design, permitting, and construction of detached, attached, ga... read more

AMG Construction INC offers residential & commercial remodeling, new builds, ADU construction, room additions, and roofing services. Licensed and insured, they handle full projects from design to completion.

ADU Builders California is a tech-driven ADU contractor offering detached ADUs, granny flats & garage conversions statewide. Costs range $30K–$300K+, with builds taking 4–6 months. Free consultations available.

Willbii is a California ADU contractor specializing in granny flats, garage conversions, and in-law suites. They guide homeowners from consultation to construction, handling permits and design. ADUs can generate up to $5,000/month in rental income... read more

Home Revive Builders is a licensed ADU contractor in the Bay Area, CA, specializing in garage conversions, detached ADUs, in-law suites, and more. Full-service projects include design, permits, plumbing, electrical, and finishing.

GetApprovedADU is a consulting firm specializing in ADU and JADU approvals. They assist with detached ADUs, garage conversions, granny flats, and attached units, helping homeowners boost property value and expand affordable housing options.

Are you considering adding an Accessory Dwelling Unit (ADU) to your property in Napa Valley, California? At Vino Design Build, we specialize in helping homeowners like you design, plan, and construct ADUs that enhance your property’s value and f... read more

Cairn Collaborative designed a 1,000 sq ft Passive House ADU in San Luis Obispo. This fossil-fuel-free, 3-bed/2-bath unit features airtight construction, heat pumps, HRV system, and thermally broken windows for minimal energy costs and long-term p... read more

HardyBuilt Custom Construction Inc. is a licensed General Contractor in Humboldt County, CA, specializing in custom homes, ADU builds, whole house remodels, additions, and kitchen & bathroom renovations built for Marine Climate Zone 4C.

ADU Conversion is a California-based ADU contractor specializing in detached ADUs, garage conversions, Junior ADUs, and attached units. They manage design, permitting, and construction, ensuring compliance with California ADU laws for homeowners s... read more

Loona Construction Inc. is a San Francisco ADU contractor specializing in detached ADUs, garage conversions, attached ADUs, and JADUs. They handle design, permitting, and construction, helping homeowners add rental income or family housing.

Apex ADU Builders is a Los Angeles-based contractor specializing in accessory dwelling unit construction. Services include new builds, garage conversions, permitting, and design. Costs range from $80K–$400K, with potential ROI 35% higher than ho... read more

Jay Remodeling is a licensed ADU contractor in Los Angeles offering attached, detached, garage conversion, basement, and Junior ADUs. They handle design, permitting, and construction, helping homeowners add rental income or family space while boos... read more