Team All Star Construction (CSLB #1009760) is a California-licensed design-build contractor specializing in Accessory Dwelling Units (ADUs) for homeowners across Southern California. The company serves San Bernardino County, Riverside County, Orange County, Los Angeles County, San Diego County, and Ventura County.
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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 seeking rental income or multigenerational housing.
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Long Beach Elite ADU Solutions specializes in ADU construction and garage conversions in Long Beach, CA. Services include detached ADUs, JADUs, basement and above-garage units. 15+ years experience, 150+ completed projects.
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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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Accessory Dwelling Units (ADUs) offer California property owners passive income, elderly care solutions, and property value growth. Since 2020 legislation, ADU permits are easier to obtain. Construction costs range $350–$450/sq ft, with rental income potential up to $4,000/month.
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Zieba Builders, a Southern California design-build firm, was named one of the top 7 ADU contractors in Long Beach by Home Builder Digest. They specialize in custom homes, garage conversions, granny flats & detached ADUs.
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A1 ADU Contractor specializes in garage conversions and custom ADU construction throughout Los Angeles and the San Fernando Valley. With over 15 years of experience, our team provides complete design, permitting, and construction services to transform underutilized spaces into beautiful, functional living areas. Whether you're creating a rental unit, guest house, home office, or multi-family dwelling, we deliver high-quality craftsmanship and personalized solutions tailored to your needs.
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Paramount Manufactured Sales in Riverside offers Skyline Homes-built ADUs for Southern California homeowners in LA, Orange, Riverside, San Bernardino & San Diego Counties. Models range from 479–849 sq ft. California law now allows detached ADUs up to 1,200 sq ft.
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US Modular Inc. is a trusted ADU builder in Riverside County, CA, with 35+ years of experience. They offer prefab ADUs, garage conversions & casitas starting at $150,000, completed in 6–9 months.
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Leonard Garage Conversion is a trusted ADU contractor in Los Angeles with 20+ years of experience. Specializing in garage conversions, granny flats, and JADUs, they offer quality builds, code compliance, and competitive pricing.
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Building an ADU in Riverside takes 8–16 months. JDB Builders guides homeowners through design (1–3 months), permitting (2–4 months), construction (4–8 months), and final inspections (1–2 months) for granny flats, garage conversions, and more.
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Sterling-Watson Collective is a full-service ADU contractor in Los Angeles offering design, permitting, structural engineering & construction management for accessory dwelling units, helping homeowners add rental units, guest suites & more.
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Nagar Builders Inc. is a Los Angeles construction company offering ADU construction, garage conversions, kitchen and bathroom remodeling, room additions, roofing, electrical work, and commercial remodeling since 2019.
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ABODU offers factory-built, fire-resistant ADUs installed in a single day. HCD-approved and AB 462-compliant, their prefab units help wildfire rebuild families return home faster, with Certificates of Occupancy issued before primary dwelling completion.
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Angelus 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 moreRancho 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.
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:
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.
A qualified ADU contractor will guide homeowners through every step of the process, including:
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.