Accessory Structures in Newport Beach, CA (2026)
5 verified accessory structures rules for Newport Beach, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Newport Beach allows accessory dwelling units under NBMC Chapter 20.48 in compliance with California ADU law. The city has adopted specific development standards for ADUs including size limits, setbacks, and parking requirements.
Newport Beach ADU Rules & Regulations
Some RestrictionsShed Rules
Newport Beach regulates sheds and accessory structures under NBMC Title 20 zoning and Title 15 building codes. Small sheds under 120 square feet may be exempt from building permits but must still meet zoning setbacks.
Newport Beach Shed & Storage Building Rules
Some RestrictionsGarage Conversions
Newport Beach allows garage conversions to ADUs under California ADU law, which preempts local parking replacement requirements. Converting a garage to general living space outside ADU provisions requires replacing lost parking per NBMC Title 20.
Newport Beach Garage Conversion Rules
Some RestrictionsCarport Rules
Newport Beach requires building permits for carport construction and regulates their size, location, height, and setbacks through zoning code Title 20. Carports in residential zones must comply with lot coverage limits and cannot encroach into required setback areas without a variance or modification permit from the Planning Division.
Newport Beach Carport Construction Regulations
Some RestrictionsTiny Homes
Newport Beach regulates tiny homes and small dwellings through its zoning and building codes. Factory-built tiny homes on permanent foundations may qualify as accessory dwelling units under state ADU law. Tiny homes on wheels are classified as recreational vehicles and cannot be used as permanent residences in residential zones.
Newport Beach Tiny Home and Small Dwelling Rules
Heavy RestrictionsLooking for Orange County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Newport Beach city rules.
Accessory Structures in Orange County →