Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
About this service
Using an ADU as a rental involves converting a space on your property into a legal unit you can lease to tenants. This provides a steady stream of passive income, but it requires compliance with local landlord-tenant laws and ADU-specific zoning rules regarding long-term or short-term rentals. You need this service when you want to maximize your property's financial potential. Costs depend on the level of interior finish and separate utility metering. Exact pricing confirmed free on the call.
Frequently asked in Irvine
Are prefabricated accessory dwelling units a good option in Irvine?
What is the process for finding an accessory dwelling unit near me in Irvine?
What types of accessory dwelling units are available?
What does an accessory dwelling unit contractor do in Irvine?
An accessory dwelling unit (ADU) contractor in Irvine manages the entire process of building your ADU, from initial design and obtaining permits to construction and final inspection. They ensure compliance with all state and local building codes, including California's ADU laws. Their expertise covers foundation work, framing, utility hookups, and all interior and exterior finishes.
What is involved in accessory dwelling unit construction in Irvine?
What are the services offered for ADU construction in Irvine?
What is the estimated cost of accessory dwelling unit construction in Irvine?
Also serving nearby: Santa Ana · Costa Mesa · Mission Viejo · Orange · Garden Grove
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Irvine — population 314,621; about 4,795 residents per square mile across 65.6 sq mi. ZIP codes covered include 92602, 92603, 92604, 92606, 92612, 92614, 92616, 92617.
Neighborhoods served in Irvine: University Park, Oak Creek, Quail Hill, Woodbridge, Northwood — and every surrounding area.
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