ADU Contractors near Rancho Cucamonga, CA
OC Builders Group
600 West Santa Ana Boulevard, Santa Clara, CA 92701
31.6 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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The ADU Builder Inc
3639 Atlantic Avenue, Long Beach, CA 90807
41.7 miles
Los Angeles ADU contractor The ADU Builder offers 10+ years of experience in ADU construction, garage conversions, JADUs, custom homes & remodels. They guide clients through design, permits, financing & building with quality craftsmanship.
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Ghouse Technologies
20720 Ventura Blvd Suite 100, Los Angeles, CA 91364
49.3 miles
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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Easton Designs
960 North Tustin Street, Orange, CA 92867
28.6 miles
Easton Designs and Consulting (EDC) is an Orange County, CA home design, architecture, and remodeling firm. Services include ADU construction, kitchen remodels, room additions, pools, and outdoor living. Free consultations available.
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Superior ADUs
6 Venture, Irvine, CA 92618
33.9 miles
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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Peck General Construction
18734 Lilac Street, Hesperia, CA 92345
26.2 miles
Peck General Construction builds ADUs in Orange County, Los Angeles & Inland Empire. Services include garage conversions, detached backyard cottages & granny flats. Full-service from permits to final inspection under a Design-Build model.
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Heart Construction
10867 Fruitland Drive, Studio City, CA 91604
45.9 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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Rost Architects
8855 Research Drive, Irvine, CA 92618
34.6 miles
Plan your ADU project with expert guidance. Rost Architects covers key factors like setbacks, height limits, floor area, utilities, and local guidelines to help homeowners avoid costly mistakes and build compliant, well-designed accessory dwelling units.
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Homeplex
421 West Broadway, Long Beach, CA 90802
43.7 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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Capital Construction
41558 Eastman Drive, Murrieta, CA 92562
42.8 miles
Capital 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.
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Fullerton ADU Builder
125 North Euclid Street, Fullerton, CA 92832
27.7 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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MTZ Contractors
3515 Atlantic Avenue, Long Beach, CA 90807
41.7 miles
Looking for the best ADU construction? Choose Mtz Contractors Inc to completely transform your property, known for constructing excellent ADUs in Long Beach CA. We create and build Accessory Dwelling Units that meet your precise requirements for quality.
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MyADU4Less
579 West County Line Road, Calimesa, CA 92320
29.3 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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DB Construction
4555 Valley Boulevard, Los Angeles, CA 90032
46.9 miles
DB Construction is a full-service ADU contractor in Greater Los Angeles, building detached ADUs, garage conversions, JADUs, in-law suites, and room additions. They manage permits in-house, offering transparent costs and turn-key project completion.
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Aligcus
1841 South San Gabriel Boulevard, San Gabriel, CA 91776
30 miles
Aligcus 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.
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Other cities in California
What you need to know
ADU Contractors in Rancho Cucamonga: Building in the Inland Empire's Premier City
Rancho Cucamonga, nestled at the foothills of the San Gabriel Mountains in San Bernardino County, is one of Southern California's most desirable cities. Known for its master-planned communities, excellent schools, and proximity to both Los Angeles and the Inland Empire's business hubs, this city presents unique opportunities for homeowners looking to maximize their property value. ADU contractors in Rancho Cucamonga are in high demand as residents seek to add accessory dwelling units to their properties, whether for rental income, multigenerational living, or increased home equity.
Understanding Rancho Cucamonga's ADU Regulations
Before breaking ground, it's essential to understand the local rules governing ADU construction in Rancho Cucamonga. The city follows California's statewide ADU laws (AB 68, AB 881, and SB 13), but also enforces its own municipal guidelines. Key regulations include:
- ADUs can be attached or detached from the primary residence
- Maximum ADU size is generally up to 1,200 square feet for detached units
- Junior ADUs (JADUs) are permitted up to 500 square feet within the existing home footprint
- Setback requirements typically require a minimum of 4 feet from rear and side property lines
- Owner-occupancy requirements have been relaxed per state law through 2025
- Separate utility connections may be required depending on the unit type
Why Hire a Local ADU Contractor in Rancho Cucamonga?
Working with an experienced ADU contractor familiar with Rancho Cucamonga is critical to a smooth building process. Local contractors understand the city's specific permitting process through the Community Development Department, as well as the soil and grading considerations unique to properties near the Cucamonga-Guasti Regional Park area and the alluvial fan terrain at the base of the mountains. They are also familiar with HOA restrictions that are common in Rancho Cucamonga's many planned communities, which can add an additional layer of approval requirements beyond city permits.
The ADU Building Process in Rancho Cucamonga
A qualified ADU contractor will guide homeowners through every step of the process, including:
- Initial site assessment and feasibility study
- Architectural design and drafting of plans
- Submission of permit applications to the City of Rancho Cucamonga
- Coordination with utility providers such as Southern California Edison and Cucamonga Valley Water District
- Construction and inspections
- Final certificate of occupancy
Maximize Your Investment with a Rancho Cucamonga ADU
With the Rancho Cucamonga real estate market remaining competitive and rental demand strong throughout San Bernardino County, adding an ADU is a smart financial move. Experienced ADU contractors in Rancho Cucamonga can help you navigate local regulations, manage construction timelines, and deliver a high-quality unit that adds lasting value to your property. Contact a licensed local ADU contractor today to get started on your project.