Newport Beach ADU Rules

A two-page overview of the City’s ADU ordinance, with details about size limits, parking, exemptions, and more. Adopted August 26, 2025 and effective September 9, 2025.

Note: Confirm all details with City staff while planning your ADU.

Other Rules Resources

• Single Water and Sewer Connections - September 9, 2021 Memorandum

• Adopted Ordinance No. 2023-2 Title 20 – Planning and Zoning ADU Regulations

• Adopted Ordinance No. 2023-8 Title 21 - LCP Implementation Plan ADU Regulations

• Safe ADU Program Flyer

Presentations and Meetings

• Planning Commission Session Related to Accessory Dwelling Units - September 9, 2021

  • Staff Report

  • Presentation

• March 23, 2022 Community Meeting PowerPoint Presentation