Accessory dwelling unit services — Irvine, CA | AccessoryDwellingUnit Services

Looking for accessory dwelling unit services in Irvine, CA? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Irvine and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

These services cover the end-to-end process of adding a secondary home to your property. This includes initial zoning checks, architectural design, permit filing, and final construction. You need these services when you want to create a separate living space for family, guests, or as a rental unit, but don’t want to manage the complex legal and structural requirements on your own.

Frequently asked in Irvine

What are the disadvantages of ADUs?

Disadvantages of adding an ADU in Irvine might include the initial construction costs and potential impacts on your yard space or privacy. You'll also want to consider how it fits with your existing home's architecture. A consultation with a local professional can help you evaluate these factors for your Irvine property.

How much does an ADU cost in California?

What are the rules for ADUs in California?

Is ADU allowed in Maryland?

This service specializes in accessory dwelling units within California, specifically cities like Irvine. Maryland has its own set of ADU laws and requirements. For information regarding ADUs in Maryland, you would need to seek out a local service provider in that state.

What are the rules for ADU in California?

California's ADU legislation sets a baseline, but local nuances in cities like Irvine are crucial. These can include specific design guidelines and requirements for utility connections. A local expert will be familiar with the exact Irvine ordinances affecting your ADU build.

Also serving nearby: Santa Ana · Costa Mesa · Mission Viejo · Orange · Garden Grove

All cities in California →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

314,621residents

4,795per sq mile

8ZIP codes served

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 Town Center, Woodbridge, Stonegate, Turtle Rock, Shady Canyon — and every surrounding area.