Orange County Construction

1173 North Red Gum Street, Anaheim, CA 92806 8 miles

New Era Home Services

New Era Home Services LLC is a full-service ADU builder specializing in custom accessory dwelling units, including granny flats, rental units, and garage conversions, guiding homeowners through design, permitting, and construction.

Urban Construction & Design Solutions

3490 East Spring Street, Long Beach, CA 90806 18.4 miles

Licensed

Licensed Long Beach general contractor Urban Construction & Design Solutions (CA #1030683) specializes in ADU construction, garage conversions, kitchen remodels, bathroom renovations & home additions across Greater LA and Orange County.

Ivy Builders

12100 Wilshire Boulevard, Los Angeles, CA 90025 39.7 miles

Ivy Builders is a top ADU contractor in Los Angeles & Orange County, specializing in detached ADUs, granny flats & backyard cottages. Offering pre-approved plans, full permitting, and custom builds ranging from $200K–$500K.

LA Developing Inc.

8504 Firestone Boulevard, Downey, CA 90241 19.9 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 support.

Platinum Home Builders

5170 Sepulveda Boulevard, Los Angeles, CA 91403 43.4 miles

Platinum Home Builders & Design Inc. builds ADUs in Los Angeles, offering detached, attached, garage conversion, and above-garage units. They handle permits, design, and construction, with projects typically completed in 4–6 months.

Bourke Construction

30802 South Coast Hwy, Laguna Beach, CA 92651 16.7 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 value.

Rockwood Homes

10017 Walnut Street, Bellflower, CA 90706 16.9 miles

Eco-Friendly

Rockwood Homes Inc., based in Torrance, CA, specializes in ADU construction, garage conversions, and home remodeling across Los Angeles County, serving cities like Long Beach, Downey, and Whittier.

ADU Resource Center

600 North Brand Boulevard, Glendale, CA 91203 35.9 miles

Licensed 20 years in business Luxury Builds

ADU Resource Center is a Glendale, CA-based ADU contractor with 600+ completed units. They offer full-service ADU building, including design, permitting, financing, and construction of detached, attached, and garage conversion ADUs across Southern California.

Structura Remodeling

1702 South Robertson Boulevard, Los Angeles, CA 90035 32.4 miles

Licensed Eco-Friendly

Structura Remodeling is an LA-based licensed ADU contractor specializing in Accessory Dwelling Units, garage conversions & JADUs. Costs range $115K–$145K. Financing options include HELOC & construction loans. Free consultation available.

Ohayon Construction

Los Angeles, CA 90012 30.1 miles

Licensed 17 years in business

Ohayon Construction is a licensed Los Angeles ADU contractor since 2008. They build detached ADUs, garage conversions, attached ADUs & JADUs. Serving Beverly Hills, Santa Monica & more. Free consultation available.

Silver Moccasin Builders

2613 Pasadena Avenue, Los Angeles, CA 90031 30.3 miles

Golden ADU

640 S Curson Ave #603, Los Angeles, CA 90036 37.4 miles

4 years in business Luxury Builds

Golden ADU, serving Southern California since 2021, specializes in custom ADU construction including garage conversions and detached backyard cottages. They offer flexible financing with no upfront costs, completing most projects in 6–12 months.

BSPK Design

685 Venice Boulevard, Venice, CA 90291 37.6 miles

BSPK Design is a Venice, CA residential studio founded by Chris Faulhammer & Roman Reiterer, with 50+ years combined experience. Services include custom homes, fire rebuilds & prefab NextGen Building. Multiple Houzz Best of Design award winners.

Waconah Construction

616 Edgewood Street, Inglewood, CA 90302 31.4 miles

Eco-Friendly

Waconah Construction builds custom ADUs in West Los Angeles, including backyard cottages, garage conversions, above-garage units, and granny flats. Serving Santa Monica, Venice, Brentwood & Beverly Hills, they guide homeowners through design, permitting, and construction.

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:

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:

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.

ADU Contractors near Santa Ana, CA