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Detached ADU near Diamond Bar, CA
Blue Dog Construction
4199 Flat Rock Road, Riverside, CA 92505 19.7 milesSuperior ADUs
6 Venture, Irvine, CA 92618 23.8 milesThe 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.
read moreADU Los Angeles
3744 Flower St, Los Angeles, CA 90007 27 milesADU Los Angeles (ADLA) is a specialized ADU contractor serving LA County. They offer consulting, custom design, construction, garage conversions, basement ADUs, attached and detached units, helping homeowners maximize property value.
read moreADU1
19326 Ventura Boulevard, Los Angeles, CA 91356 42.5 milesADU1 helps multifamily property owners add ADUs to boost income. Add up to 25% more units plus 2 detached ADUs. Services include a $250 feasibility report, full design-build, and free weekly Q&A sessions every Wednesday.
read moreJean Prescott Studio
120 Newport Center Dr, Newport Beach, CA 92660 27 milesJean Prescott Studio offers ADU design, construction, and home remodeling services in San Clemente. Services include kitchen remodels, bathroom renovations, room additions, permit management, and custom ADU plans for rental income or flexible living.
read moreVelmor Construction
19559 Vanowen Street, Los Angeles, CA 91335 44 milesVelmor Construction offers full-scope ADU construction in Reseda, covering custom design, permitting, and build. Services include detached ADUs, garage conversions, and in-law suites using quality materials and local code compliance.
read moreHomeplex
421 West Broadway, Long Beach, CA 90802 27 milesPrefab 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.
read moreADU Builders
6464 Sunset Boulevard, Hollywood, CA 90028 30.3 milesADU Builders is a licensed Los Angeles ADU contractor with 15 years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs, handling permits, design, and inspections for stress-free ADU construction.
read moreA.G.A. Construction Inc
18375 Ventura Boulevard, Tarzana, CA 91356 43.1 milesA.G.A. Construction Inc is a Los Angeles ADU contractor specializing in accessory dwelling units & JADUs. Services include custom design, permits, plumbing, electrical & energy-efficient construction to maximize property value.
read more1 Degree Construction
13107 Ventura Boulevard, Studio City, CA 91604 34.9 miles1 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+.
read moreAngelus Construction
330 Arden Avenue, Glendale, CA 91203 27.5 milesAngelus Construction is a Los Angeles ADU contractor with 30+ years of experience. They offer full-service ADU design, permitting, and construction, plus residential remodeling across Los Angeles and Ventura Counties.
read moreCapital Construction
41558 Eastman Drive, Murrieta, CA 92562 44.5 milesCapital Construction Inc. is an experienced ADU contractor building detached ADUs, in-law suites, granny flats, and rental units. Licensed, bonded, and insured, they handle permitting, design, and construction while respecting budgets and timelines.
read moreiHome Design & Remodel
614 South Euclid Street, Fullerton, CA 92832 11.8 milesiHome 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.
read moreAligcus
1841 South San Gabriel Boulevard, San Gabriel, CA 91776 17.1 milesAligcus is an experienced ADU contractor specializing in detached ADUs, garage conversions, JADUs, granny flats, in-law suites, and backyard cottages. They guide homeowners through permitting and construction for all accessory dwelling unit projects.
read moreOther cities in California
- North Highlands
- Sacramento
- North Hollywood
- Agoura Hills
- Encino
- Los Angeles
- Tarzana
- Long Beach
- Hollywood
- Glendale
- Valley Village
- Pasadena
- Burbank
- Downey
- Beverly Hills
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.