ADU Contractors near Orange, CA
En Builders Inc.
18375 Ventura Boulevard, Tarzana, CA 91356
48.4 miles
En Builders Inc. is an ADU contractor offering granny flats, garage conversions, JADUs, and 2nd story ADUs. They also provide kitchen remodeling, bathroom remodeling, room additions, roofing, solar solutions, and more.
read more
Infinity ADU
645 West 15th Street, Long Beach, CA 90813
21.5 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
ADU Design Homes
2610 Pacific Avenue, Manhattan Beach, CA 90266
34 miles
ADU Design Homes is a full-service ADU design and build firm in Los Angeles and Orange County. They handle detached ADUs, JADUs, garage conversions, permitting, engineering, and construction under one roof.
read more
California Dream Builders
13623 Victory Boulevard, North Hollywood, CA 91401
40.6 miles
California Dream Builders specializes in ADU design and construction, offering end-to-end services including architectural design, permitting, and full construction management. They build detached ADUs, granny flats, in-law suites, and backyard co... read more
ADU Of Oceanside
5074 Gold Drive, Oceanside, CA 92057
48.4 miles
ADU Of Oceanside is a full-service accessory dwelling unit builder in Oceanside, CA, handling design, permitting, and construction. Led by UC Berkeley-certified owner Colin Pond, they specialize in detached ADUs, granny flats, and garage conversio... read more
Okopod
307 North Euclid Way, Anaheim, CA 92801
6.5 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.
read more
EG Modern Construction
421 East Elmwood Avenue, Burbank, CA 91501
37.6 miles
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.
read more
Bartona Builders
331 Delaware Road, Burbank, CA 91504
38.9 miles
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.
read more
FabuHome
9451 Telstar Avenue, El Monte, CA 91731
22.8 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.
read more
High Power Construction
3201 N Alameda St Suite E, Compton, CA 90222
24 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.
read more
Arrowhead Remodeling & Design
18345 Ventura Boulevard, Tarzana, CA 91356
47.8 miles
Arrowhead Remodeling & Design is a licensed California ADU contractor specializing in detached ADUs, garage conversions, and in-law suites. They offer free in-home consultations and manage projects from planning to completion.
read more
1 Degree Construction
13107 Ventura Boulevard, Studio City, CA 91604
40.6 miles
1 Degree Construction is a Los Angeles ADU builder & home addition contractor. Services include detached ADUs, garage conversions, second-story additions & in-law suites. Projects range from $30K to $150K+.
read more
Aspace Studios
p.o. box 851, Glendora, CA 91741
22.9 miles
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.
read more
Go Home Builders
15132 Ventura Boulevard, Sherman Oaks, CA 91403
43.3 miles
GO Home Builders is a licensed LA construction company specializing in custom homes, ADUs, garage conversions, fire rebuilds, and remodels. Their design-build model streamlines permitting, zoning, and construction across Los Angeles and LA County.
read more
Lux Builders
1020 Manhattan Beach Boulevard, Manhattan Beach, CA 90266
33.5 miles
Lux Builders offers room additions & ADU services in Los Angeles, including detached ADUs, garage conversions & second-story additions. With 20+ years experience, they manage design, permits & construction across LA County.
read more
Other cities in California
What you need to know
ADU Contractors in Orange, CA: Building in a Historic Preservation City
Orange, California is one of the few cities in Southern California with a nationally recognized historic downtown district, known as Old Towne Orange. This unique characteristic means that ADU contractors working in Orange must navigate not only standard California state ADU regulations but also local historic preservation guidelines when projects fall within or near the Old Towne Historic District. Homeowners in these areas may face additional design review requirements to ensure that any accessory dwelling unit complements the architectural character of the surrounding neighborhood.
California State ADU Laws and How They Apply in Orange
Since 2020, California has significantly relaxed statewide ADU regulations, and the City of Orange must comply with these state mandates. Key rules that experienced ADU contractors in Orange work with include:
- ADUs up to 850 square feet (or up to 1,000 sq ft for two or more bedrooms) cannot be denied based on floor area ratio or lot coverage
- Junior ADUs (JADUs) up to 500 square feet can be created within existing single-family homes
- Setback requirements of 4 feet from rear and side property lines for most detached ADUs
- No owner-occupancy requirement through at least January 1, 2025
- Utility connection fees may be waived for ADUs under 750 square feet
Permitting Process for ADUs in Orange, CA
Working with a knowledgeable ADU contractor in Orange is essential to successfully navigating the city's permitting process. The City of Orange Community Development Department handles ADU permit applications, and experienced contractors understand the importance of submitting complete, accurate plans to avoid costly delays. The city generally follows the 60-day permit review timeline mandated by California state law. Projects within the Old Towne Historic District may require additional review by the Old Towne Historic Preservation Committee.
Types of ADUs Commonly Built in Orange, California
Orange's diverse housing stock — ranging from historic Craftsman bungalows near the Plaza to newer tract homes in areas like Serrano Heights and Belmont — creates a variety of ADU opportunities. Skilled ADU contractors in Orange regularly build:
- Detached ADUs — standalone structures in backyards, ideal for rental income or multigenerational living
- Garage Conversions — transforming existing garages into livable ADU spaces
- Attached ADUs — additions connected to the primary residence
- Junior ADUs — interior conversions within the existing home footprint
Choosing the Right ADU Contractor in Orange, CA
When selecting an ADU contractor in Orange, California, homeowners should look for professionals with verified experience in local permitting, familiarity with Orange's zoning codes, and a portfolio of completed ADU projects in the area. A qualified contractor will handle everything from design and engineering to permit submission and final inspection, ensuring your ADU project is completed efficiently, legally, and to the highest standard of quality.