Cornejos Builders offers ADU construction, garage conversions & home additions in LA & Orange County. 24 ADUs completed in 4 years. Costs range $80K–$250K. Licensed, insured, bonded. 1-year warranty included.
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iHome Design & Remodel specializes in custom ADU and casita construction, offering full-service builds from design to completion. Services include garage conversions, detached ADUs, permit handling, and free 3D consultations for homeowners.
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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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Romano Builders specializes in ADU construction in Los Angeles, offering detached, attached, garage conversion, and junior ADUs. Costs range $300–$600/sq ft, with rental income potential of $1,500–$4,000+/month.
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USA Builders Pro offers 20+ years of ADU construction and home addition services. Specializing in detached & attached ADUs, room additions, permits, and zoning compliance, they help homeowners boost property value and living space.
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A1 ADU Contractor specializes in garage conversions and custom ADU construction throughout Los Angeles and the San Fernando Valley. With over 15 years of experience, our team provides complete design, permitting, and construction services to transform underutilized spaces into beautiful, functional living areas. Whether you're creating a rental unit, guest house, home office, or multi-family dwelling, we deliver high-quality craftsmanship and personalized solutions tailored to your needs.
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An Accessory Dwelling Unit (ADU) adds value, rental income, and flexibility to your property. LA Developing Inc. specializes in ADU construction in Los Angeles, offering garage conversions, detached builds, and attached additions with full project support.
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All Inclusive ADU is a licensed ADU contractor serving Orange, Riverside, Los Angeles & San Diego Counties. They offer full-service ADU construction including detached ADUs, garage conversions & JADUs with fixed pricing and a 365-day warranty.
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RIA Group Construction (CA Lic. #1143899) is a full-service design-build contractor in Orange County, CA. Specializing in home renovations, new builds, ADUs, kitchen & bathroom remodeling, and pool construction.
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Buildoly is an ADU contractor offering full-service construction for detached ADUs, garage conversions, granny flats, JADUs, and backyard cottages. They manage design, permitting, and building, helping homeowners add rental income or family housing.
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Cahla Construction Group is a licensed ADU contractor in Los Angeles offering ADU construction, garage conversions, kitchen & bathroom remodeling, home additions, and general contracting for residential and commercial clients.
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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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Aligcus is an experienced ADU contractor specializing in detached ADUs, garage conversions, JADUs, granny flats, in-law suites, and backyard cottages. They guide homeowners through permitting and construction for all accessory dwelling unit projects.
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Rockwood Homes Inc., based in Torrance, CA, specializes in ADU construction, garage conversions, and home remodeling across Los Angeles County, serving cities like Long Beach, Downey, and Whittier.
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Garage conversion to ADU in Los Angeles requires structural upgrades, permits, and utility connections. IBA Builders evaluates ceiling height, slab condition, setbacks, and utility access before design begins, ensuring code compliance and accurate project scoping.
read moreWest Hills is a quiet, family-oriented neighborhood located in the western San Fernando Valley of Los Angeles. Known for its spacious lots, hillside terrain, and suburban character, West Hills presents unique opportunities for homeowners looking to add an Accessory Dwelling Unit (ADU) to their property. The larger lot sizes common in this area make it an ideal location for detached ADUs, garage conversions, and junior ADUs (JADUs). Working with experienced ADU contractors in West Hills is essential to navigating the specific topographical and regulatory challenges this community presents.
Since West Hills falls within the jurisdiction of the City of Los Angeles, ADU projects here must comply with the LA Department of Building and Safety (LADBS) guidelines. Key regulations include:
Parts of West Hills feature sloped and hillside terrain, which can significantly impact ADU construction costs and timelines. Experienced ADU contractors in West Hills understand the need for thorough geotechnical reports, proper grading permits, and hillside-specific foundation work. These factors can add complexity to your project, making it critical to hire a contractor familiar with Los Angeles hillside construction requirements and the additional scrutiny that LADBS applies to projects in these zones.
Choosing the right contractor for your ADU project in West Hills can make a significant difference in both cost and outcome. Look for contractors who offer the following:
Adding an ADU to your West Hills property is a smart investment. Whether you're looking to generate rental income, house extended family members, or increase your home's resale value, a well-built ADU can deliver significant returns. With median home values in West Hills consistently above the LA average, the return on investment for a professionally built ADU is especially strong. Partner with a qualified West Hills ADU contractor today to start planning your project.