ADU Contractors near Westminster, CA
ADU Homes, Inc.
245 East 3rd Street, Long Beach, CA 90802
9.7 miles
ADU Homes is a full-service ADU contractor in Los Angeles & Orange County offering design-build solutions. They handle design, permitting & construction with fixed pricing. Options include studios, 1-3 bed units & carriage units.
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EAM Development & Construction
15300 Ventura Boulevard, Sherman Oaks, CA 91403
38.8 miles
EAM Development & Construction is a California-based licensed contractor specializing in ADU and JADU garage conversions. Services include design, permitting, structural work, energy-efficient systems, and full construction compliant with Cali... read more
Infinity ADU
645 West 15th Street, Long Beach, CA 90813
11.8 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
Creative Innovation Developers
1812 W Burbank Blvd, Burbank, CA 91506
36.8 miles
Creative Innovation Developers is a residential construction and remodeling company offering design through build services, including home additions, kitchen remodels, bathroom remodels, flooring, and painting, using 3D renderings for clear projec... read more
Orange Innovation
4949 Bilmoor Avenue, Tarzana, CA 91356
42.5 miles
Orange Innovation Inc is an ADU builder offering full-service design, engineering, and construction. Specializing in detached ADUs, granny flats, and in-law suites, they manage projects from concept to completion with a focus on budget and timelin... read more
A.G.A. Construction Inc
18375 Ventura Boulevard, Tarzana, CA 91356
42.7 miles
A.G.A. Construction Inc is a Los Angeles ADU contractor specializing in accessory dwelling units & JADUs. Services include custom design, permits, plumbing, electrical & energy-efficient construction to maximize property value.
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EZ ADU & Garage Conversion
300 South Harbor Boulevard, Anaheim, CA 92805
7 miles
EZ ADU & Garage Conversion is a trusted ADU builder and garage conversion contractor in Orange County, CA. They offer custom ADU construction, garage conversions, design, and permitting services for homeowners seeking quality living space solu... read more
Tiny Topanga
120 South Topanga Canyon Boulevard, Los Angeles, CA 90290
42 miles
Tiny Topanga is a family-run Los Angeles builder of custom, RV-certified tiny homes on wheels, handling design, construction, delivery, and installation nationwide. Offering custom and ready-made models, financing options, and a six-to-seven-month... read more
MTZ Contractors
3515 Atlantic Avenue, Long Beach, CA 90807
11.8 miles
Looking for the best ADU construction? Choose Mtz Contractors Inc to completely transform your property, known for constructing excellent ADUs in Long Beach CA. We create and build Accessory Dwelling Units that meet your precise requirements for q... read more
Doran Companies LLC
1041 N Cypress St, La Habra, CA 90631
13.4 miles
At Doran Companies LLC, we specialize in creating accessory dwelling units (ADUs) that are not just spaces, but extensions of your home’s character. Whether you’re considering garage conversions, new construction, or in-law suites, our experti... read more
Garage Conversion by Pearl Remodeling
6803 Yarmouth Avenue, Reseda, CA 91335
43 miles
Pearl Remodeling is a Los Angeles ADU contractor specializing in garage conversions, granny flats & in-law suites. With 10+ years experience, they handle design, permits & construction under California's SB-1069 ADU laws.
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Ultra-Unit Architectural Studio
1327 Loma Avenue, Long Beach, CA 90804
9.3 miles
Ultra-Unit Architectural Studio, based in Long Beach, CA, offers architecture and construction services for ADUs, residential, multifamily, and commercial projects. Led by Cameron Crockett AIA, LEED, with 25+ years experience. Free initial consult... read more
Supreme Remodeling Inc.
5000 Van Nuys Boulevard, Van Nuys, CA 91403
38.4 miles
Supreme Remodeling Inc. is a licensed Los Angeles general contractor with 30+ years of experience. Services include kitchen & bathroom remodeling, ADU construction, garage conversions, room additions, and new home builds across LA, Ventura &am... read more
Sea Pointe Design & Remodel
576 Wald, Irvine, CA 92618
17.1 miles
Considering an ADU in California? Sea Pointe Design & Remodel helps homeowners plan and build accessory dwelling units, including garage conversions, granny flats, and backyard cottages, handling permits, design, and construction.
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The Los Angeles ADU Builders
240 South Beverly Drive, Beverly Hills, CA 90212
32 miles
Los Angeles ADU Builders is a licensed ADU contractor in Beverly Hills offering custom ADU design, garage conversions, detached ADUs, JADUs & in-law suites. CSLB certified, fully insured, with expert permit handling & transparent pricing.<... read more
Other cities in California
What you need to know
ADU Contractors in Westminster, CA: Building in Orange County's Little Saigon
Westminster, California, famously known as the home of Little Saigon, the largest Vietnamese-American community in the United States, is a vibrant city in Orange County with a dense residential landscape. This unique cultural and demographic character has driven significant demand for Accessory Dwelling Units (ADUs) in Westminster, as multigenerational living is a deeply rooted tradition in many of the city's households. Experienced ADU contractors in Westminster understand this cultural context and specialize in designing spaces that accommodate extended families while maximizing property value.
Westminster ADU Regulations and Zoning Requirements
ADU contractors working in Westminster must navigate both California state ADU laws and the city's local ordinances. Following California's landmark ADU legislation, Westminster has aligned its policies to encourage ADU development. Key regulations that contractors and homeowners must be aware of include:
- ADUs are permitted in single-family and multifamily residential zones throughout Westminster
- Detached ADUs can be up to 1,200 square feet in size
- Junior ADUs (JADUs) are allowed up to 500 square feet within the existing primary structure
- Setback requirements typically require 4-foot side and rear yard setbacks for new detached ADUs
- ADUs under 750 square feet are exempt from impact fees under California law
- Owner-occupancy requirements have been suspended through 2025 per state law
Why Hire a Local Westminster ADU Contractor?
Hiring a licensed ADU contractor familiar with Westminster is essential for a smooth building process. Local contractors have established relationships with the City of Westminster Community Development Department and understand the permitting timelines and plan check requirements specific to this city. Westminster's older housing stock, with many homes built in the 1950s through 1970s, often presents unique challenges such as outdated electrical panels, older plumbing systems, and slab foundations that require expert evaluation before ADU construction begins.
Types of ADUs Built in Westminster
Professional ADU contractors in Westminster offer a full range of construction options tailored to the city's typical lot sizes and home configurations:
- Detached ADUs – Standalone backyard units ideal for rental income or family use
- Attached ADUs – Additions connected to the primary residence
- Garage Conversions – A popular and cost-effective option given Westminster's many single-car garages
- Junior ADUs (JADUs) – Interior conversions within the existing home footprint
Maximize Your Westminster Property with a Trusted ADU Contractor
With median home values rising across Orange County, adding an ADU in Westminster is one of the smartest investments a homeowner can make. Whether you're looking to house family members, generate rental income, or increase your property's resale value, working with a qualified, licensed ADU contractor in Westminster, CA ensures your project is completed on time, on budget, and fully up to code.