Prefab / Modular ADU near Santa Ana, CA
Eureka Modular
2553 Sampson Avenue, Corona, CA 92879
20.9 miles
Eureka Modular builds steel frame modular ADUs and single family homes. Steel framing offers durability, design flexibility, and sustainability. Ideal for detached ADUs, backyard cottages, granny flats, and casitas with efficient, precise construction.
read more
Addition Builders La
1352 Palms Blvd, Los Angeles, CA 90291
39.7 miles
Addition Builders LA is a full-service ADU contractor in Los Angeles offering custom ADUs, prefab units, and garage conversions. Licensed, bonded, and insured, they manage design to construction, completing projects in as little as nine months with transparent pricing.
read more
EHD Builders
18375 Ventura Boulevard, Tarzana, CA 91356
48.2 miles
EHD Builders offers ADU construction services in Los Angeles, CA, including garage conversions, detached units & additions. Costs range from $150K–$350K+. Services cover permits, framing, plumbing, electrical & more.
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
Cali ADU
3705 W Pico Blvd, Ste 1635, Los Angeles, CA 90012
33.8 miles
Cali ADU is a top Los Angeles ADU builder offering custom and pre-designed accessory dwelling units, garage conversions, and granny flats. Fixed pricing, fast permitting, and expert project management ensure stress-free builds from design to move-in.
read more
Los Angeles Advanced ADU Builders
240 South Beverly Drive, Los Angeles, CA 90212
37.3 miles
Los Angeles Advanced ADU Builders offers full-service ADU construction across LA, including garage conversions, detached units, JADUs & prefab ADUs. With 20+ years experience & 500+ builds, they handle design, permits & zoning compliance.
read more
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.
read more
US Modular Inc.
579 West County Line Road, Calimesa, CA 92320
49.7 miles
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.
read more
ORR Construction
1977 Obispo Avenue, Signal Hill, CA 90755
16.5 miles
ADUs are secondary units built on existing lots. ORR Construction builds detached ADUs, garage conversions, JADUs & in-law suites in California. Costs range $50–$300/sq ft. California laws like SB 897 simplify the permitting process.
read more
Ghousetechnologies
20720 Ventura Blvd Suite 100, Los Angeles, CA 91364
35.7 miles
Ghousetechnologies is a California ADU contractor offering steel frame accessory dwelling units. Models range from 360–1,200 sq ft. Builds are fire, flood, earthquake, and hurricane-resistant, eco-friendly, and completed faster than traditional construction.
read more
Other cities in California
What you need to know
Searching for top Prefab / Modular ADU ADU Contractors in Santa Ana, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Prefab / Modular ADU ADU Contractor in Santa Ana ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Prefab / Modular ADU professionals can guide you through every step.
Santa Ana homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Prefab / Modular ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Prefab / Modular ADU ADU Contractors in Santa Ana, California, and get started today.