Structura Remodeling is an LA-based licensed ADU contractor specializing in Accessory Dwelling Units, garage conversions & JADUs. Costs range $115K–$145K. Financing options include HELOC & construction loans. Free consultation 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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Vision ADU is a California ADU contractor specializing in detached ADUs, garage conversions, attached ADUs, and JADUs. They offer full-service design, permitting, and construction to help homeowners add value or rental income.
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ADU1 helps multifamily property owners add ADUs to boost income. Add up to 25% more units plus 2 detached ADUs. Services include a $250 feasibility report, full design-build, and free weekly Q&A sessions every Wednesday.
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Milanco Building Group (MBG) is a certified general contracting company that offers extremely competitive prices while working under all the proper licenses and insurances.
We are a full turn-key company that performs projects in the commercial, residential, industrial markets and more. We have a management team that has 30+ years of experience to ensure a smooth project, such as full communication with the client, timely scheduling, great customer service and attention to details.
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New Birth Builders believes that a room addition or Garage Conversion is a great way to increase your home’s value and this new space can be used in a variety of ways. For most homeowners adding a room is less cost efficient and stressful than having to sell their home and move to a bigger home.
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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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Ivy Builders is a top ADU contractor in Los Angeles & Orange County, specializing in detached ADUs, granny flats & backyard cottages. Offering pre-approved plans, full permitting, and custom builds ranging from $200K–$500K.
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Foothill Renovators offers home remodeling, ADU construction, new builds, and additions. Services include flooring, roofing, electrical, plumbing, and more. They handle permits and full project management for detached ADUs, granny flats, and garage conversions.
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Los Angeles Advanced ADU Builders offers full-service ADU construction across LA, including garage conversions, detached units, JADUs & prefab ADUs. With 20+ years experience & 500+ builds, they handle design, permits & zoning compliance.
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Experience a personalized approach to ADU construction with GO ADU. From initial design concepts to permits, construction, and financing, we offer a seamless, all-in-one solution customized to your needs. With owner involvement at every stage, your project is in caring and capable hands.
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Licensed Long Beach general contractor Urban Construction & Design Solutions (CA #1030683) specializes in ADU construction, garage conversions, kitchen remodels, bathroom renovations & home additions across Greater LA and Orange County.
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Joel & Co. Construction, serving Los Angeles since 1983, offers expert residential & commercial construction, including custom homes, kitchen & bathroom remodels, ADUs, room additions, and general contracting across Beverly Hills, Santa Monica & beyond.
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Eco Grizzly is a licensed Southern California ADU contractor (CSLB #1077111) building detached ADUs, garage conversions, JADUs, and above-garage units. They handle permits, architectural plans, and full construction across LA, Ventura, Orange, and Riverside counties.
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Building an ADU boosts property value, generates rental income, and offers flexible living space. United Builders, a licensed ADU contractor, delivers expert design-build solutions, garage conversions, and custom ADUs on time and within budget.
read moreDowney, California, is a historically rich city in Los Angeles County, famously known as the location where NASA's Space Shuttle was built. Today, this vibrant city of approximately 113,000 residents is experiencing a surge in Accessory Dwelling Unit (ADU) construction, as homeowners look to maximize their property value and address Southern California's ongoing housing shortage. Hiring experienced ADU contractors in Downey, CA is essential to navigating the city's specific building requirements and making the most of your investment.
As part of Los Angeles County's broader jurisdiction, Downey follows both California state ADU laws and its own local municipal codes. Since California's landmark ADU legislation took effect, cities like Downey must permit ADUs on single-family and multifamily residential lots. Key regulations that your ADU contractor must be familiar with include:
Choosing the right ADU builder in Downey means finding a licensed contractor who understands both state law and local permitting processes through the Downey Community Development Department. A qualified contractor should handle everything from architectural design and permit applications to foundation work, utility connections, and final inspections. Look for contractors who are licensed by the California Contractors State License Board (CSLB) and have a proven track record of completed ADU projects in the greater Los Angeles area.
Given Downey's mix of post-war single-family homes and larger residential lots, several ADU types are particularly well-suited to the area:
With rising property values and strong rental demand throughout the Los Angeles metropolitan area, building an ADU in Downey is a smart long-term investment. Work with a trusted, local ADU contractor in Downey, California to ensure your project meets all code requirements, stays on budget, and adds lasting value to your property.