Detached ADU near Diamond Bar, CA
View ADU Builders
18740 Ventura Boulevard, Tarzana, CA 91356
43.2 miles
View ADU Builders is a trusted Los Angeles ADU contractor specializing in detached ADUs, garage conversions, attached ADUs & in-law suites. Costs range from $80K–$350K+. Free 3D design consultations available.
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Ataman Studio
13151 Fountain Park Drive, Los Angeles, CA 90094
35.2 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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Avorino
360 E 1st St #355, Tustin, CA 92780
17.5 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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Heart Construction
10867 Fruitland Drive, Studio City, CA 91604
33.1 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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Otto ADU
2926 Denby Avenue, Los Angeles, CA 90039
28 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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San Gabriel Valley ADU
1841 South San Gabriel Boulevard, Rosemead, CA 91776
16.8 miles
San Gabriel Valley ADU Construction Contractors build & convert ADUs, granny flats, garage conversions & in-law suites across Pasadena, Arcadia & nearby cities. Expert permitting, design & cost management for LA County homeowners.
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MGMW Remodeling
11041 Santa Monica Blvd #301, Los Angeles, CA 90025
28 miles
MGMW Remodeling INC is a Los Angeles ADU contractor specializing in accessory dwelling units. Services include detached ADU construction, garage conversions, architectural design, permitting, and full project management from planning to completion.
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Homeplex
421 West Broadway, Long Beach, CA 90802
27 miles
Prefab vs. stick-built ADUs explained. Homeplex offers the Clever ADU, an HCD-certified modular unit built all-electric in a factory, saving 5–6 months vs. traditional construction. Costs vary based on site conditions.
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1 Degree Construction
13107 Ventura Boulevard, Studio City, CA 91604
34.9 miles
1 Degree Construction is a Los Angeles ADU builder & home addition contractor. Services include detached ADUs, garage conversions, second-story additions & in-law suites. Projects range from $30K to $150K+.
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Fullerton ADU Builder
125 North Euclid Street, Fullerton, CA 92832
11.4 miles
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.
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Raudes Construction
18414 Eddy Street, Northridge, CA 91325
44.3 miles
Raudes Construction builds ADUs including garage conversions, granny flats & detached units. They handle permits, zoning compliance & full construction. Costs range from $50K to $300K+, with timelines of 3–6 months.
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iHome Design & Remodel
614 South Euclid Street, Fullerton, CA 92832
11.8 miles
iHome Design & Remodel specializes in custom ADU and casita construction, offering full-service builds from design to completion. Services include garage conversions, detached ADUs, permit handling, and free 3D consultations for homeowners.
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ADU Builders CA
6464 Sunset Boulevard, Los Angeles, CA 90028
30.3 miles
ADU Builders is a licensed Los Angeles ADU contractor with 15 years of experience. They offer detached, attached, garage conversion, and JADU construction, managing permits, design, and inspections per California ADU building codes.
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Aspace Studios
p.o. box 851, Glendora, CA 91741
9.7 miles
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.
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YOR Construction
12135 Miranda Street, Valley Village, CA 91607
35.5 miles
An ADU (accessory dwelling unit) is a secondary home on a residential lot. Garage conversion ADUs are cost-effective options. YOR Construction, an LA-based ADU contractor, specializes in garage conversions tailored to homeowner needs.
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What you need to know
Searching for top Detached ADU ADU Contractors in Diamond Bar, 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 Diamond Bar 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.
Diamond Bar 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 Diamond Bar, California, and get started today.