ADU Contractors near Santa Ana, CA
Kirmina Construction
8615 Mesa Oak Drive, Riverside, CA 92508
29.3 miles
Kirmina Construction (License #1124572) is a licensed general contractor in Riverside, CA, offering home additions, ADUs, garage conversions, room extensions, and outdoor living spaces across Riverside, San Bernardino, and Orange County.
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Calcons
7838 Truxton Avenue, Los Angeles, CA 90045
33.4 miles
Calcons is a California-based ADU contractor specializing in detached ADUs, garage conversions, JADUs, granny flats, and backyard cottages. They manage permits, design, and construction for homeowners seeking to add livable space.
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Vision ADU
1440 South State College Boulevard, Anaheim, CA 92806
5.2 miles
Vision ADU is a California ADU contractor specializing in detached ADUs, garage conversions, attached ADUs, and JADUs. They offer full-service design, permitting, and construction to help homeowners add value or rental income.
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California Construction Center Inc
12509 Oxnard Street, North Hollywood, CA 91606
41.6 miles
California Construction Center Inc. specializes in garage conversions and ADU services in Concord and San Francisco County. They transform garages into guest suites, rental units, and home offices, ensuring code compliance and quality craftsmanshi... read more
Builderwell
9641 Irvine Center Drive, Irvine, CA 92618
7.3 miles
Builderwell is an ADU contractor in Orange County, CA, offering full-service design-build solutions for custom accessory dwelling units, including guest houses, in-law suites, and rental units across Irvine, Newport Beach, and Laguna Hills.
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United State Of The Art Construction
18034 Ventura Boulevard, Encino, CA 91316
47.3 miles
Licensed LA construction firm United State Of The Art Construction specializes in ADU building and luxury home renovations across Brentwood, Beverly Hills & Malibu. Offering eco-friendly builds, full remodels & free consultations.
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Suncoast Construction Inc.
428 Sleeping Indian Road, Vista, CA 92057
48.5 miles
Suncoast Construction Inc. is a licensed ADU contractor in Oceanside, CA, building detached ADUs, garage conversions, JADUs & attached units per Oceanside's 2022 ADU Ordinance. No short-term rentals permitted.
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Huntington Beach Pro ADU Builder
7772 Warner Avenue, Huntington Beach, CA 92647
8.7 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
Cornejos Builders
8909 Elmont Avenue, Downey, CA 90240
20.7 miles
Cornejos Builders offers ADU construction, garage conversions & home additions in LA & Orange County. 24 ADUs completed in 4 years. Costs range $80K–$250K. Licensed, insured, bonded. 1-year warranty included.
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Homeplex
421 West Broadway, Long Beach, CA 90802
18.3 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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Step Up Builders Inc
16250 Ventura Boulevard, Encino, CA 91436
45.5 miles
Step Up Builders Inc is a Class A licensed ADU contractor in Encino, CA, serving Los Angeles, San Fernando Valley & Inland Empire. 30+ years experience in detached ADUs, garage conversions, JADUs & remodels. Free estimates available.
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Unlimited Construction & Remodeling, Inc
8500 Wilshire Boulevard, Beverly Hills, CA 90211
36.3 miles
Unlimited Construction & Remodeling (UCR), a licensed Beverly Hills contractor, serves LA, Orange & Ventura Counties. Specializing in garage conversions, ADUs & home remodeling, this family-owned firm delivers budget-conscious, code-co... read more
Custom ADU Builder
Los Angeles, CA 90012
30.1 miles
Custom ADU Builder specializes in detached ADUs, attached ADUs, garage conversions & JADUs. Projects complete in ~3 months. Pricing starts at $235/sqft. Turn-key builds include quartz countertops, tile showers & luxury vinyl flooring.
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Fassino Development
4275 Linda Vista Drive, Fallbrook, CA 92028
48.6 miles
California ADUs are self-contained units on single-family lots, offering rental income, family housing, and no land purchase. Build up to 1,200 sq ft. Fassino Development guides homeowners through ADU construction, ensuring local code compliance.<... read more
California Backyard Homes Inc
6230 Wilshire Boulevard, Los Angeles, CA 90048
35.7 miles
California Backyard Homes Inc specializes in prefab ADUs, tiny houses, and modular homes across California. Starting from $44,500, they offer turnkey installation including permits and utility connections, with financing available up to 23 years.<... read more
Other cities in California
What you need to know
ADU Contractors in Santa Ana: Building in One of California's Most Densely Populated Cities
Santa Ana, California, is one of the most densely populated cities in the entire United States, making Accessory Dwelling Units (ADUs) an especially valuable housing solution for homeowners looking to maximize their property's potential. With a population exceeding 310,000 residents packed into just over 27 square miles, the demand for additional housing in Santa Ana is significant. Experienced ADU contractors in Santa Ana understand the unique challenges and opportunities that come with building in such a compact urban environment, from navigating tight lot sizes to working within the city's specific zoning regulations.
Santa Ana Zoning and ADU Regulations You Need to Know
Santa Ana falls under both California state ADU law and its own local municipal codes. The city has adopted regulations consistent with California's statewide ADU legislation, which has been significantly liberalized in recent years. Key regulations that qualified ADU builders in Santa Ana must navigate include:
- 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.
- Setback requirements: A minimum 4-foot setback from rear and side property lines is required for most new detached ADUs.
- Height limits: Detached ADUs are typically limited to 16 feet in height, though this can vary based on proximity to public transit.
- Owner-occupancy rules: California suspended owner-occupancy requirements for ADUs built between 2020 and 2025, giving Santa Ana homeowners added flexibility.
- Parking requirements: ADUs located within half a mile of public transit may be exempt from additional parking requirements.
Types of ADUs Built by Santa Ana Contractors
Professional ADU contractors serving Santa Ana, CA are experienced in constructing a variety of ADU types suited to the city's diverse housing stock, which includes many older single-family homes and multi-family properties. Common ADU types include:
- Detached ADUs – Standalone structures built in backyards, ideal for rental income or multigenerational living.
- Attached ADUs – Units added directly to the existing home, sharing at least one wall.
- Garage Conversion ADUs – Converting existing garages into livable space, a popular option in Santa Ana's older neighborhoods.
- Junior ADUs (JADUs) – Units up to 500 square feet created within the existing primary residence.
Why Hire a Local ADU Contractor in Santa Ana?
Hiring a licensed and experienced local ADU contractor in Santa Ana is critical to ensuring your project meets all city and state requirements. Local contractors are familiar with the City of Santa Ana's Planning and Building Agency permitting process, typical soil and foundation conditions in the area, and the architectural styles common to Orange County neighborhoods. A knowledgeable contractor will help streamline permit approvals, manage construction efficiently, and deliver a compliant, high-quality ADU that adds lasting value to your property.