ADU plans in Irvine
ADU plans for Irvine homeowners.
Irvine homeowners can add a detached ADU, an attached ADU or a junior ADU on most single-family lots. We design to Irvine’s requirements and handle the city submittal.
Building an ADU in Irvine
What to know before you start.
Based on the city’s published ADU information as of October 2026. Rules change; we confirm the requirements for your address before design.
- Applications go through Irvine’s online submittal system, IrvineReady!
- The city’s ADU package includes the application, an ADU verification form, a hold harmless affidavit, a development standards checklist, and school fee and Transportation Corridor Agency forms.
- Irvine is setting up a pre-approved ADU plan program. Custom plans let you fit the unit to your lot and layout.
- Our studio is in Irvine, at 4000 Barranca Parkway.
Sources: City of Irvine: ADUs, Irvine Building & Inspections, and the HCD ADU Handbook.
Our ADU package
One flat fee, permit-ready.
- Site visit and measurements
- Layout and elevations you approve first
- Architectural, structural and MEP plans
- Title 24 energy and CALGreen documents
- Submittal to Irvine and plan-check corrections