2 Best ADU Builders in Irvine, California
Verified ADU contractors and builders in Irvine, CA
Showing 1–2 of 2 listings
So Cal Casitas and Adu's Inc
Specializing in accessory dwelling unit construction throughout Orange County, this Irvine-based contractor helps homeowners maximize their property value with expertly built ADUs. From initial design consultation to final permitting and installation, they deliver comprehensive ADU solutions tailored to your home and local regulations.
Superior ADUs - ADU Builders Orange County
Superior ADUs specializes in designing and building accessory dwelling units throughout Orange County, helping homeowners maximize their property value and create additional living space on their existing lots. With expertise in ADU construction from planning through completion, they deliver custom solutions tailored to local Irvine and Orange County regulations and your family's needs.
Frequently Asked Questions — ADU Builders in Irvine
How much does it cost to hire an ADU builder in Irvine?
ADU construction costs in Irvine, California vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in Irvine to get accurate quotes for your specific project.
How long does it take to build an ADU in Irvine?
In Irvine, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on California local regulations. Prefab and modular ADUs often have faster timelines than site-built units.
Do I need a permit to build an ADU in Irvine?
Yes, a building permit is required for ADU construction in Irvine, California. Your ADU builder will typically handle the permit application as part of their service. California has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.
What types of ADUs can be built in Irvine?
Common ADU types in Irvine include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local Irvine ADU builder can advise on what's allowed on your specific parcel.