Stephens Brothers Construction is Temecula & Murrieta's top ADU builder since 2011, offering detached ADUs, JADUs, garage conversions & casitas. Costs from $300–$350/sq ft. Licensed, hands-on, and serving all of Riverside County.
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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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RD Fast Construction offers ADU garage conversions in Los Angeles, helping homeowners add property value, rental income, guest space, or housing for adult children using existing infrastructure for cost-effective results.
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Builderwell is an ADU contractor in Orange County, CA, offering full-service design-build solutions for custom accessory dwelling units, including guest houses, in-law suites, and rental units across Irvine, Newport Beach, and Laguna Hills.
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ADU Hotline offers affordable ADU design and permitting in Southern California. From granny flats to garage conversions, they handle the full process in 3–4 weeks, helping homeowners add rental income or family housing efficiently.
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High Power Construction, based in Compton, CA, offers ADU contractor services including detached units, garage conversions, granny flats, and in-law suites. Serving the greater Los Angeles area with quality craftsmanship.
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La Tour Builders offers expert ADU construction in Laguna Niguel, CA, including garage conversions, detached units & attached additions. Licensed, insured & code-compliant, they help homeowners add rental income or multigenerational living 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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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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The ADU Company, a licensed ADU contractor in Covina, CA, serves greater Los Angeles with expert accessory dwelling unit design and construction, including garage conversions, detached ADUs, JADUs, home additions, remodels, and more.
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OC Builders Group specializes in ADU construction in California, offering detached ADUs, garage conversions, granny flats & in-law suites. They help homeowners navigate permits, zoning & state regulations to add rental income or housing value.
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Sten Engineering is a Los Angeles firm specializing in ADU design, structural engineering, and garage conversions. Led by licensed P.E. Evgeny Nagovitsyn, they handle permits, structural plans, and ADU builds across Southern California.
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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 California building codes.
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Building an ADU in Riverside takes 8–16 months. JDB Builders guides homeowners through design (1–3 months), permitting (2–4 months), construction (4–8 months), and final inspections (1–2 months) for granny flats, garage conversions, and more.
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Kyra Construction is an experienced ADU contractor offering detached ADUs, garage conversions, in-law suites, JADUs, granny flats, and backyard cottages. They handle permits, zoning, and full construction, delivering quality accessory dwelling units tailored to each homeowner.
read moreGarden Grove, located in the heart of Orange County, California, is one of the most culturally diverse cities in the state, home to the largest Vietnamese-American community in the United States — known as Little Saigon. With a dense residential population and a strong tradition of multigenerational living, ADU contractors in Garden Grove are in high demand. Homeowners across this vibrant city are increasingly turning to Accessory Dwelling Units (ADUs) to accommodate extended family members, generate rental income, or simply maximize the value of their properties.
Before breaking ground, it's essential to understand the local rules that govern ADU construction in Garden Grove. The city follows California state ADU law (AB 68, SB 13, AB 881, and subsequent legislation), but also enforces its own municipal guidelines. Key regulations include:
Working with an experienced ADU contractor familiar with Garden Grove's permitting process can save homeowners significant time and money. The Garden Grove Building and Safety Division oversees permit applications, inspections, and code compliance. A knowledgeable local contractor will understand how to navigate the city's plan check process efficiently, helping to avoid costly delays. They will also be familiar with the specific soil conditions, utility infrastructure, and neighborhood zoning designations common throughout Garden Grove's residential areas.
Given the city's mix of single-family homes and older residential lots, Garden Grove ADU contractors frequently work on the following project types:
Whether you're looking to house a family member or create a long-term rental income stream, building an ADU in Garden Grove is a smart investment. Make sure to partner with a licensed, insured, and locally experienced ADU contractor who understands both California state law and Garden Grove's specific municipal requirements. Getting the right team on your side from the start ensures a smoother build, faster approvals, and a higher-quality finished product.