Detached ADU near Foothill Ranch, CA
Avorino
360 E 1st St #355, Tustin, CA 92780
28.7 miles
Avorino specializes in ADU construction, offering detached, attached, garage conversion, and above-garage units. Projects range from $250K–$400K, covering design, permitting, and build phases over 10–14 months.
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Ataman Studio
13151 Fountain Park Drive, Los Angeles, CA 90094
50 miles
Ataman Studio is a trusted ADU contractor in Los Angeles, serving all of California. Full-service design, permitting, and construction for detached ADUs, garage conversions, and in-law units, with compliance to local zoning and state regulations.
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YOR Construction & Investments
12135 Miranda Street, Valley Village, CA 91607
48 miles
An ADU (accessory dwelling unit) is a secondary home on a residential lot. Garage conversion ADUs are cost-effective, blending with existing homes. YOR Construction & Investments specializes in Los Angeles ADU garage conversions.
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ADU Maxx
4401 Atlantic Avenue, Long Beach, CA 90807
40.2 miles
Golden ADU
640 S Curson Ave #603, Los Angeles, CA 90036
48.3 miles
Golden ADU, serving Southern California since 2021, specializes in custom ADU construction including garage conversions and detached backyard cottages. They offer flexible financing with no upfront costs, completing most projects in 6–12 months.
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Pixel Arch LLC
24001 Calle De La Magdalena, Laguna Hills, CA 92653
35.3 miles
Pixel Arch LLC, Glendale CA, offers residential architecture services including custom home design, ADUs, garage conversions, duplexes & remodeling. Permit-ready plans, Title 24 reports & 3D renderings for California clients.
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OC Builders Group
600 West Santa Ana Boulevard, Santa Clara, CA 92701
30.3 miles
OC Builders Group specializes in ADU construction in California, offering detached ADUs, garage conversions, granny flats & in-law suites. They help homeowners navigate permits, zoning & state regulations to add rental income or housing value.
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MyADU4Less
579 West County Line Road, Calimesa, CA 92320
29.2 miles
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.
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Custom ADU Builder
113 West Santa Fe Avenue, Fullerton, CA 92832
26 miles
Full-service ADU contractor offering design, permitting, and construction of detached ADUs, attached ADUs, JADUs, and garage conversions. Most builds complete in 3–5 months. Includes quartz countertops, tile showers, and luxury vinyl flooring. Rental prep support available.
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Otto ADU
2926 Denby Avenue, Los Angeles, CA 90039
41.3 miles
Otto ADU is a licensed Los Angeles ADU builder specializing in garage conversions, detached ADUs, JADUs & granny flats. Serving LA County with 100+ completed units, adding avg. $185K in home value.
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Heart Construction
10867 Fruitland Drive, Studio City, CA 91604
45.7 miles
Heart Construction builds ADUs in Los Angeles, offering detached, attached, garage conversions, JADUs & more. Full-service from permits to completion. Ideal for rental income, multigenerational living & property value growth.
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Blue Dog Construction
4199 Flat Rock Road, Riverside, CA 92505
14.8 miles
AMG Construction
4237 West 142nd Street, Long Beach, CA 90250
38.4 miles
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.
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The ADU Pro
15338 Central Avenue, Chino, CA 91710
11.2 miles
The ADU Pro® is a licensed ADU contractor in Chino, CA, serving Fontana and Southern California. Specializing exclusively in ADU construction, they offer detached ADUs, garage conversions, and granny flats with a lifetime transferable warranty.
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Pasadena Master ADU Builder
930 East Colorado Boulevard, Pasadena, CA 91106
31.4 miles
Pasadena Master ADU Builder is a top ADU contractor in San Gabriel Valley, offering detached ADUs, garage conversions, and JADUs. With 20+ years experience, 150+ projects, and 98% satisfaction, they deliver compliant, high-quality builds boosting property value by 20–30%.
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What you need to know
Searching for top Detached ADU ADU Contractors in Foothill Ranch, 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 Foothill Ranch 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.
Foothill Ranch 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 Foothill Ranch, California, and get started today.