Newform Builders specializes in ADU construction for multi-family and mixed-use properties. They handle permits, inspections, and code-compliant builds, including detached, attached, and space-conversion ADUs, ensuring safe, regulation-aligned results from planning to completion.
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California's 2020 ADU laws allow two ADUs on single-family lots, reduced setbacks, larger units up to 800 sq ft, no owner-occupancy rules until 2025, faster approvals, and expanded parking exemptions statewide.
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BuildForm Design is a Los Angeles general contractor offering full-service ADU design, build, and value engineering. With 15 years of experience, they handle basement conversions, detached ADUs, garage conversions, and more across Southern California.
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ORO Coast Builders is an ADU contractor in Los Angeles & the Bay Area with 25+ years of experience. They build detached ADUs, garage conversions, basement conversions & JADUs—fully custom, no prefab.
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High Touch Remodeling is a Los Angeles ADU contractor specializing in garage conversions. They offer full garage-to-ADU buildouts, design planning, space optimization, and code compliance, with free estimates available.
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Silver Hammer Builders is a licensed ADU contractor in Los Angeles with 15+ years of experience. Services include garage conversions, detached ADUs, JADUs & in-law suites. Full project management, permits, and free consultations offered.
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Los Angeles ADU builders with 10+ years experience, 220+ completed projects & 98% client satisfaction. Full-service ADU construction, garage conversions, design, permits & a deferred payment program—no payments until your ADU is rental-ready.
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Cavalier Builders offers professional and affordable services for homeowners looking to build an ADU. ADUs can add significant value to your property, provide additional living space, or generate income as a rental. Our expertise in design, construction, and regulations ensure you receive a high-quality addition to your home and property, giving you the peace of mind that your investment is secure.
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ADU Garage Experts, a Southern California structural engineering firm, specializes in ADU planning and drafting. They offer garage conversions from ~$70/sqft, attached and detached ADUs, helping homeowners add rental income or living space.
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KN Remodeling is a certified ADU contractor serving Los Angeles, Woodland Hills, Simi Valley & Thousand Oaks. Specializing in detached ADUs, attached ADUs & garage conversions, they handle design, permits & construction with 100+ ADU plans completed.
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Morrison Construction offers expert ADU building services in West Hills, handling everything from planning to completion. Services include custom design, construction, plumbing, electrical, and interior finishes for granny flats, rental units, and in-law suites.
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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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Diditan Group is a Los Angeles ADU contractor offering garage conversions, granny flats, JADUs & detached ADUs. They manage design, permitting & construction, helping homeowners add value & livable space.
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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.
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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.
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.