ADU Contractors near Fontana, CA
Vertebrae
725 South Los Angeles Street, Los Angeles, CA 90014
45.4 miles
Vertebrae is an LA-based, woman-owned architecture studio founded in 2012, specializing in ADU design and small-space living. Award-winning projects include the 2025 Architizer A+ Award and 2023 AIA LA Honor Award winners.
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La Tour Builders
23362-G Via Fabricante, Mission Viejo, CA 92691
34.7 miles
La Tour Builders offers expert ADU construction in Laguna Niguel, CA, including garage conversions, detached units & attached additions. Licensed, insured & code-compliant, they help homeowners add rental income or multigenerational living... read more
GoAdu Construction
1812 West Burbank Boulevard, Burbank, CA 91506
49.1 miles
Experience a personalized approach to ADU construction with GO ADU. From initial design concepts to permits, construction, and financing, we offer a seamless, all-in-one solution customized to your needs. With owner involvement at every stage, you... read more
ADU Los Angeles
3744 Flower St, Los Angeles, CA 90007
47.7 miles
ADU 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.
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Huntington Beach Pro ADU Builder
7772 Warner Avenue, Huntington Beach, CA 92647
43.3 miles
Huntington Beach Pro ADU Builder specializes in ADU construction, garage conversions, and detached ADUs. With 20 years of experience and 500+ projects, they offer full design-build services, permit handling, energy-efficient features, and transpar... read more
Capital Construction
41558 Eastman Drive, Murrieta, CA 92562
38.7 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 timeline... read more
Okopod
307 North Euclid Way, Anaheim, CA 92801
31.6 miles
Okopod's 215 ft² backyard studio ADU features a dual pitch standing seam roof, Natural Thermowood cladding, aluminum doors, a full bathroom, and an anthracite grey pergola with adjustable louvres and slab flooring.
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Socal Upgrades ADU
1288 North Verdugo Road, Glendale, CA 91206
44.2 miles
SoCal Upgrades is a full-service ADU contractor in Los Angeles & Glendale, specializing in detached ADUs, garage conversions, JADUs & granny flats. They handle design, permits, construction & financing for a seamless, turnkey experience.
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Bourke Construction
30802 South Coast Hwy, Laguna Beach, CA 92651
43.4 miles
Bourke Construction builds custom ADUs in Orange County, including detached units, garage conversions, and JADUs. They manage design, permits, and construction, helping homeowners add rental income, multi-generational living space, or property val... read more
ADUscale
528 West Hampshire Avenue, Anaheim, CA 92805
33.4 miles
ADUscale is an independent ADU advisory service offering feasibility assessments, contractor verification, escrow-based payment protection, and construction oversight. Fixed-fee, conflict-free guidance for homeowners planning detached ADUs, garage... read more
JDB Builders - Riverside
11801 Pierce Street, Riverside, CA 92505
11.5 miles
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 ... read more
MGMW Remodeling
11041 Santa Monica Blvd #301, Los Angeles, CA 90025
47.6 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... read more
DREC Construction Services
15338 Central Avenue, Chino, CA 91710
15.6 miles
DREC Construction Services is a licensed ADU builder in Glendale, CA, with 10+ years of experience. They handle design, permitting, and construction of ADUs for rental income, family housing, and home offices, offering a transferable lifetime warr... read more
Potato Construction
8326 East Valley Boulevard, Rosemead, CA 91770
35.9 miles
Potato Construction Inc., based in Rosemead, CA, is a licensed ADU contractor with 15+ years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs across the San Gabriel Valley and greater Los Angeles area.
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Joel & Co. Construction
11693 San Vicente Boulevard, Los Angeles, CA 90049
47.4 miles
Joel & Co. Construction, serving Los Angeles since 1983, offers expert residential & commercial construction, including custom homes, kitchen & bathroom remodels, ADUs, room additions, and general contracting across Beverly Hills, Sant... read more
Other cities in California
What you need to know
ADU Contractors in Fontana, CA: Building in the Inland Empire's Fastest-Growing City
Fontana, California, is one of the fastest-growing cities in the Inland Empire, with a population exceeding 215,000 residents. As housing demand continues to surge in San Bernardino County, more homeowners are turning to Accessory Dwelling Units (ADUs) as a practical solution to increase housing capacity and generate rental income. Finding experienced ADU contractors in Fontana, CA is essential to navigating the city's specific permitting requirements and building codes while maximizing the value of your property.
Fontana ADU Regulations and Permitting Requirements
ADU construction in Fontana is governed by both California state ADU laws and local ordinances enforced by the City of Fontana's Community Development Department. Homeowners and contractors must comply with the following key regulations:
- Setback requirements: ADUs in Fontana typically require a minimum 4-foot setback from side and rear property lines.
- Maximum ADU size: Detached ADUs can be up to 1,200 square feet, while attached ADUs are generally limited to 50% of the primary dwelling's square footage.
- Height limits: Detached ADUs are generally limited to 16 feet in height, though two-story ADUs may be permitted in certain zones.
- Owner-occupancy: California law currently does not require owner-occupancy for ADUs built after 2020, giving Fontana homeowners greater flexibility.
- Utility connections: ADUs may require separate utility connections, and contractors must coordinate with local utility providers serving the Fontana area.
Why Hire a Local ADU Contractor in Fontana?
Working with a licensed ADU contractor familiar with Fontana's building department can significantly streamline the construction process. Local contractors understand the specific soil conditions common in the Inland Empire, the high desert climate considerations that affect insulation and HVAC requirements, and the nuances of working within Fontana's zoning districts. A knowledgeable contractor will handle everything from architectural plans and permit applications to final inspections, ensuring your project meets all California Title 24 energy compliance standards.
Types of ADUs Popular in Fontana
Given Fontana's suburban layout and larger lot sizes compared to coastal California cities, several ADU types are particularly popular among local homeowners:
- Detached ADUs: Standalone units built in the backyard, ideal for Fontana's spacious residential lots.
- Garage Conversions: Converting existing attached or detached garages into livable ADU space.
- Junior ADUs (JADUs): Units up to 500 square feet created within the existing footprint of the primary home.
- Attached ADUs: Additions built directly onto the primary residence, sharing at least one wall.
Start Your Fontana ADU Project Today
Investing in an ADU in Fontana is a smart financial decision in today's competitive Inland Empire real estate market. Whether you're looking to house extended family or generate rental income, hiring a qualified ADU contractor in Fontana, CA ensures your project is completed on time, on budget, and fully compliant with all local and state regulations.