Beach Builders Custom Homes offers full-service ADU and garage conversion services in Los Angeles and Orange County. From permits to construction, they build granny flats, backyard cottages, and JADUs with smart home tech, earning homeowners $1,200–$1,600/month.
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L Square Construction is an ADU contractor serving Los Angeles & Orange County, CA. They offer full-service design-build ADU solutions including detached units, in-law suites, garage conversions, and energy-efficient builds with solar integration.
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Angelus Construction is a Los Angeles ADU contractor with 30+ years of experience. They offer full-service ADU design, permitting, and construction, plus residential remodeling across Los Angeles and Ventura Counties.
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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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South Land Remodeling is an LA-based ADU contractor with 20+ years of experience. They offer full-service ADU construction, garage conversions, room additions, and permit management across Los Angeles and the San Fernando Valley.
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Giani Construction ADU & Remodel is a California-based contractor specializing in ADUs, garage conversions, JADUs, granny flats, and home remodeling, managing design, permitting, and construction from start to finish.
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Joseph Construction Builders LLC is a licensed detached ADU builder in Newport Beach & Costa Mesa, CA, with 30+ years of experience. Services include detached ADUs, garage conversions, JADUs, and home additions across Orange County.
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Quality First Builders offers full-service ADU construction across LA County since 2014. They handle design, permits, and building in-house for detached ADUs, garage conversions, JADUs, and in-law suites.
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Flip It Homes Inc. is a Southern California ADU builder with 10+ years of experience in garage conversions, new construction ADUs, and home renovations across Los Angeles, San Fernando Valley, and surrounding communities.
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Horizon Remodeling Inc. is a full-service residential remodeling company offering kitchen, bathroom, roofing, flooring, painting, and ADU conversions. Dedicated project managers coordinate all trades, keeping projects on schedule and within budget.
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Ted Design Build is an LA-based ADU contractor offering full-service design, permitting, and construction. Specializing in detached ADUs, garage conversions, and in-law suites across Los Angeles and Glendale.
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ADU Los Angeles (ADLA) is a specialized ADU contractor serving LA County. They offer consulting, custom design, construction, garage conversions, basement ADUs, attached and detached units, helping homeowners maximize property value.
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Unlimited Construction & Remodeling (UCR), a licensed Beverly Hills contractor, serves LA, Orange & Ventura Counties. Specializing in garage conversions, ADUs & home remodeling, this family-owned firm delivers budget-conscious, code-compliant residential & commercial renovations.
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LADU is a full-service ADU builder in Los Angeles managing design, permits, and construction end-to-end. Serving LA, Orange, San Diego & more counties, they offer custom and prefab ADUs with transparent pricing and free on-site evaluations.
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Accessory Dwelling Units (ADUs) offer California property owners passive income, elderly care solutions, and property value growth. Since 2020 legislation, ADU permits are easier to obtain. Construction costs range $350–$450/sq ft, with rental income potential up to $4,000/month.
read moreLos Angeles is widely recognized as one of the most active cities in the United States for Accessory Dwelling Unit (ADU) construction. With a severe housing shortage, high property values, and progressive local ordinances, Los Angeles homeowners are increasingly turning to ADU contractors to maximize their property's potential. The city's unique urban density, diverse neighborhoods — from Silver Lake to the San Fernando Valley — and its Mediterranean climate make ADUs a practical and financially rewarding investment for property owners across the region.
Working with an experienced ADU contractor in Los Angeles is essential due to the city's complex regulatory environment. The Los Angeles Department of Building and Safety (LADBS) oversees ADU permitting, and contractors must be well-versed in both California state ADU laws and local LA-specific ordinances. Key regulations include:
Skilled ADU builders in Los Angeles work on a wide variety of ADU types to suit the city's diverse housing stock. The most common types include detached ADUs (DADUs), attached ADUs, garage conversions, and Junior ADUs (JADUs). Garage conversions are particularly popular in LA given the abundance of single-car and two-car garages throughout neighborhoods like Koreatown, Echo Park, and Reseda. JADUs, which are up to 500 square feet and created within the existing primary residence, offer a cost-effective option for homeowners looking to add rental income with minimal construction.
Hiring a licensed and insured ADU contractor in Los Angeles is not just recommended — it is legally required. All contractors must hold a valid California Contractors State License Board (CSLB) license. Reputable ADU contractors in LA will handle the full permitting process through LADBS, ensure compliance with Title 24 energy efficiency standards, and coordinate with utility providers for proper connections. Given LA's seismic activity, contractors must also ensure that all ADU construction meets strict earthquake safety and structural requirements under the California Building Code.
When searching for the best ADU contractor in Los Angeles, CA, homeowners should look for professionals with proven local experience, strong portfolios of completed LA projects, and transparent pricing. Request multiple bids, verify CSLB license status, and check reviews on platforms like Houzz, Yelp, and the Better Business Bureau. A qualified contractor will guide you through design, permitting, construction, and final inspection — turning your ADU vision into a compliant, high-quality reality.