LPI Construction offers custom homes, ADU construction, and solar electric systems. Services cover hillside builds, detached/attached ADUs, garage conversions, and sustainable building practices, managing full project lifecycles from permits to co... read more
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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Sequoia Homes & Backyard Bungalows offer affordable ADU builder services in Carlsbad, CA. From granny flats to in-law suites, they handle design, permits, financing & installation. Projects completed in as little as 8 weeks.
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Proteus Homes is a custom home and ADU builder with 30+ years of experience in the Southwest US. They offer full-service ADU construction, including design, permitting, and panelized off-site fabrication, with move-in-ready homes in under three mo... read more
Baumeister Construction offers full-service ADU construction in Carson, CA, including garage conversions, JADUs & detached units. 20+ years experience, woman-led, covering design, permitting & sustainable builds.
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Kol & Co. is an ADU contractor serving Orange County, West LA & North San Diego. With 15+ years in design-build, they handle detached ADUs, garage conversions, JADUs & more—managing permits, design, and construction under one roof.read more
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.read more
ADU Cities is a California design-build firm specializing in ADUs, JADUs, garage conversions, and remodels. They manage design, permitting, and construction, helping homeowners add living space, boost property value, or generate rental income.
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WM Construction is a licensed ADU contractor in Los Angeles offering full-service builds, from site assessment and design to permitting and post-construction support, helping homeowners add granny flats, garage conversions, and in-law suites compl... read more
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... read more
DB Construction is a full-service ADU contractor in Greater Los Angeles, building detached ADUs, garage conversions, JADUs, in-law suites, and room additions. They manage permits in-house, offering transparent costs and turn-key project completion... read more
AP Remodeling is an ADU contractor offering garage conversions, ground-up ADU builds, and home additions. Projects range from 400 to 1,200+ sq ft with budgets from $20,000 to $300,000+, serving homeowners seeking rental income, in-law suites, or e... read more
Prime Team Builders is a general contracting company serving the Inland Empire, including Pomona, Ontario, Riverside & more. They specialize in kitchen remodeling, bathroom remodeling, and residential renovations throughout Southern California... read more
AMG Construction INC offers residential & commercial remodeling, new builds, ADU construction, room additions, and roofing services. Licensed and insured, they handle full projects from design to completion.
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Temecula ADU Builders is a local ADU contractor helping homeowners add accessory dwelling units, including detached ADUs, garage conversions, and granny flats, for rental income, family housing, or tax benefits in Temecula, CA.
read moreIrvine, California is one of the most meticulously planned cities in the United States, developed largely by the Irvine Company with strict architectural guidelines and community standards. This unique characteristic makes hiring experienced ADU contractors in Irvine especially important. Unlike many other Southern California cities, Irvine's neighborhoods are governed not only by city zoning codes but also by Homeowners Associations (HOAs), which can impose additional design requirements, material restrictions, and approval processes on top of standard city permits.
Irvine follows California state ADU law, which was significantly expanded through legislation including AB 68, AB 881, and SB 13. Under these laws, homeowners in Irvine can build Accessory Dwelling Units (ADUs) and Junior ADUs (JADUs) on single-family and multifamily lots. Key local regulations include:
One of the most significant challenges for ADU construction in Irvine is navigating HOA restrictions. Many Irvine communities — including those in Woodbridge, Northwood, Turtle Rock, and Quail Hill — have active HOAs with architectural review committees. While California law (Civil Code Section 4751) limits HOAs from outright prohibiting ADUs, they can still regulate exterior appearance, materials, colors, and landscaping. A knowledgeable Irvine ADU contractor will manage both city permit submissions and HOA architectural review applications simultaneously to avoid costly delays.
Given Irvine's suburban layout and lot sizes, the most common ADU types built by local contractors include:
When selecting an ADU contractor in Irvine, California, homeowners should look for professionals with proven experience in local permitting, HOA compliance, and California Title 24 energy code requirements. The best contractors will handle everything from design and engineering to permit submission and final inspection. With Irvine's strong rental market and high property values, a well-built ADU can offer significant return on investment while adding functional living space to your property.