ADU Contractors near Fullerton, CA
Oasis Builders
11500 West Olympic Boulevard, Los Angeles, CA 90064
31.4 miles
Oasis Builders is a trusted ADU contractor serving Greater Los Angeles, specializing in detached ADUs, attached ADUs, and garage conversions. Costs range from $100K–$300K, with timelines of 6–12 months. Full-service: permits, blueprints & turnkey construction.
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Leonard ADU Garage Convert
6100 Teesdale Avenue, North Hollywood, CA 91606
32.4 miles
Leonard Garage Conversion is a trusted ADU contractor in Los Angeles with 20+ years of experience. Specializing in garage conversions, granny flats, and JADUs, they offer quality builds, code compliance, and competitive pricing.
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AD Remodeling & Construction
7040 Darnoch Way, West Hills, CA 91307
46.6 miles
AD Remodeling & Construction offers room additions and ADU services, including design, permitting, and construction. They build detached ADUs, in-law suites, granny flats, and room additions tailored to client needs and local regulations.
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California Dream Builders
13623 Victory Boulevard, North Hollywood, CA 91401
32.4 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 cottages across California.
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Pomona General Contractors
3191 W Temple Ave Suite 130, Pomona, CA 91768
13.3 miles
Pomona General Contractors offers ADU construction in Pomona, including detached ADUs, attached ADUs, and garage conversions. Services cover permitting, 3D design, energy-efficient builds, and full construction management for granny flats, in-law suites, and backyard cottages.
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Addition Builders La
1352 Palms Blvd, Los Angeles, CA 90291
31.8 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.
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ADU Maxx
4401 Atlantic Avenue, Long Beach, CA 90807
15.4 miles
OC Master ADU Construction
809 East Katella Avenue, Orange, CA 92867
7.2 miles
OC Master ADU Construction builds ADUs across Orange County, offering detached units, garage conversions, JADUs & attached additions. Services include design, permitting & full construction management for rental income or family housing.
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Jay Remodeling
15219 Sunset Boulevard, Los Angeles, CA 90272
33.5 miles
Jay Remodeling is a licensed ADU contractor in Los Angeles offering attached, detached, garage conversion, basement, and Junior ADUs. They handle design, permitting, and construction, helping homeowners add rental income or family space while boosting property value.
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Calpacific Constracting
24024 Outrigger Drive, Canyon Lake, CA 92587
41.7 miles
Calpacific Contracting builds ADUs, casitas & garage conversions across Riverside, Orange, LA & San Bernardino Counties. 80+ years experience. Full-service: permits, design, construction & inspections handled end-to-end.
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Build ADU Home Remodel
4780 West Mission Boulevard, Montclair, CA 91762
17.9 miles
Build ADU Home Remodel is a trusted, licensed general contractor serving homeowners throughout the Inland Empire with full-service ADU construction. Whether you're looking to add rental income, house extended family, or increase your property value, we build ADUs that meet your needs and exceed your expectations.
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Bunch Design
2718 West Avenue 34, Los Angeles, CA 90065
29.2 miles
ADUs (granny flats/backyard cottages) boost property value & rental income. Bunch Design, LA, offers custom & pre-designed ADUs: Garage Studio ($300K+), Cottage ($400K+), Stop Making Sense ($425K+), and Step ADU ($425K+).
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DB Construction
4555 Valley Boulevard, Los Angeles, CA 90032
27.4 miles
DB Construction is a full-service ADU contractor in Greater Los Angeles, building detached ADUs, garage conversions, JADUs, in-law suites, and room additions. They manage permits in-house, offering transparent costs and turn-key project completion.
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Velmor Construction
19559 Vanowen Street, Los Angeles, CA 91335
42.4 miles
Velmor Construction offers full-scope ADU construction in Reseda, covering custom design, permitting, and build. Services include detached ADUs, garage conversions, and in-law suites using quality materials and local code compliance.
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LA Family Builders
6355 California 27, Los Angeles, CA 91367
27.6 miles
LA Family Builders is a California general contractor specializing in ADU construction across Los Angeles. Services include detached ADUs, garage conversions, granny flats, JADUs, and casitas, covering Beverly Hills, Pasadena, Malibu, and more.
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Other cities in California
What you need to know
ADU Contractors in Fullerton, CA: Building in a Historic and Vibrant City
Fullerton, California, is a city known for its rich historic downtown, thriving arts scene, and a large student population thanks to California State University, Fullerton (CSUF). With a growing demand for housing and a diverse mix of older single-family homes and newer developments, ADU contractors in Fullerton are in high demand. The city's unique blend of historic neighborhoods and modern development makes accessory dwelling units (ADUs) an attractive solution for homeowners looking to add rental income, house family members, or increase property value.
Fullerton ADU Regulations and Zoning Requirements
ADU contractors working in Fullerton must navigate both California state ADU laws and the City of Fullerton's local ordinances. Fullerton falls under the jurisdiction of Orange County and follows state guidelines under AB 68, AB 881, and SB 13, which streamlined ADU approvals across California. Key regulations that experienced Fullerton ADU contractors must be familiar with include:
- Setback requirements: ADUs in Fullerton generally require a minimum 4-foot side and rear setback.
- Height limits: Detached ADUs are typically limited to 16 feet in height, though this can vary based on proximity to the main dwelling.
- Maximum ADU size: Detached ADUs can be up to 1,200 square feet, while attached ADUs are limited to 50% of the primary dwelling's square footage.
- Owner-occupancy rules: As of 2020, California law removed owner-occupancy requirements for ADUs built before 2025, giving Fullerton homeowners more flexibility.
- Parking requirements: In many cases, especially near transit corridors, parking requirements for ADUs may be waived.
Types of ADUs Built by Fullerton Contractors
Skilled ADU builders in Fullerton offer a variety of ADU types to suit different property layouts and homeowner needs. Given the prevalence of older ranch-style homes and bungalows in neighborhoods like Sunny Hills and Raymond Hills, garage conversions and detached backyard cottages are especially popular. Common ADU types include:
- Detached ADUs (backyard cottages or casitas)
- Attached ADUs (additions to the primary home)
- Garage conversion ADUs (converting existing garages into living spaces)
- Junior ADUs (JADUs) — up to 500 sq ft within the existing home footprint
Why Hire a Local Fullerton ADU Contractor?
Hiring a local ADU contractor in Fullerton ensures that your project is handled by professionals who understand the City of Fullerton's permitting process, building department requirements, and inspection protocols. Local contractors are familiar with the Fullerton Building and Safety Division and can efficiently manage permit applications, plan checks, and construction timelines. Whether you're near the CSUF campus looking to create student housing or in a quiet residential neighborhood seeking a multigenerational living solution, a qualified Fullerton ADU contractor can help you maximize your property's potential while staying fully compliant with all local and state regulations.