ADU Contractors near Fontana, CA

Silver Moccasin Builders

2613 Pasadena Avenue, Los Angeles, CA 90031 43.4 miles

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The Sterling-Watson Collective

1441 Huntington Dr, 1900, South Pasadena, CA 91030 39.8 miles

Licensed Eco-Friendly Luxury Builds

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... read more

Homeplex

421 West Broadway, Long Beach, CA 90802 48 miles

Prefab Specialist Eco-Friendly

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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SouthStar USA

1611 Pomona Road, Corona, CA 92878 16.8 miles

SouthStar USA offers ADU construction in Riverside & Orange County, CA. Services include detached ADUs, attached ADUs, garage conversions & JADUs. Quality builds, permit-compliant, with transparent pricing for every project stage.

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A1 Home Builder

37056 Springfield Street, Palmdale, CA 93552 46.8 miles

Licensed 19 years in business

A1 Home Builder (CA License #885624) is a Lancaster-based ADU contractor and residential builder serving the Antelope Valley since 2006, specializing in garage conversions, detached ADUs, and new single-family home construction.

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Infinity ADU

645 West 15th Street, Long Beach, CA 90813 47.3 miles

Infinity ADU is a top ADU contractor in Long Beach, CA, specializing in attached, detached ADUs, granny flats & garage conversions. They handle design, permitting & construction, ensuring full local code compliance for a stress-free build.... read more

Peck General Construction

18734 Lilac Street, Hesperia, CA 92345 25.5 miles

Luxury Builds

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.<... read more

Okopod

307 North Euclid Way, Anaheim, CA 92801 31.6 miles

Eco-Friendly

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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EG Modern Construction

421 East Elmwood Avenue, Burbank, CA 91501 48.4 miles

Licensed

EG Modern Construction offers full-service ADU design and construction in Los Angeles, including detached ADUs, garage conversions, and JADUs. Licensed and insured, they manage consultation, permitting, and build completion.

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Bartona Builders

331 Delaware Road, Burbank, CA 91504 49.4 miles

Licensed 120 years in business Eco-Friendly

Bartona Builders specializes in ADU construction in Los Angeles, offering detached ADUs, garage conversions, and in-law suites. They manage the full build process, ensuring code-compliant construction that adds value to residential properties.

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FabuHome

9451 Telstar Avenue, El Monte, CA 91731 34.3 miles

FabuHome offers affordable ADU building services, including detached units, in-law suites & backyard cottages. Full-service design to construction, tailored to your budget, helping homeowners add value & flexible living space.

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High Power Construction

3201 N Alameda St Suite E, Compton, CA 90222 45.9 miles

High Power Construction, based in Compton, CA, offers ADU contractor services including detached units, garage conversions, granny flats, and in-law suites. Serving the greater Los Angeles area with quality craftsmanship.

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Aspace Studios

p.o. box 851, Glendora, CA 91741 23.4 miles

Luxury Builds

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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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

LA Developing Inc.

8504 Firestone Boulevard, Downey, CA 90241 39.9 miles

An Accessory Dwelling Unit (ADU) adds value, rental income, and flexibility to your property. LA Developing Inc. specializes in ADU construction in Los Angeles, offering garage conversions, detached builds, and attached additions with full project... read more

Other 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

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:

1. Detached ADUs: Standalone units built in the backyard, ideal for Fontana's spacious residential lots.
2. Garage Conversions: Converting existing attached or detached garages into livable ADU space.
3. Junior ADUs (JADUs): Units up to 500 square feet created within the existing footprint of the primary home.
4. 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.