ADU rules in Anaheim, CA β also called accessory dwelling unit regulations or granny flat ordinances β cover setbacks, owner-occupancy, parking, and permit requirements.
Anaheim regulates accessory dwelling units under AMC Section 18.38.015 and state law. One ADU is allowed per single-family lot with an existing or proposed primary home. JADUs up to 500 sq ft are permitted within the existing residence.
AMC Section 18.38.015 governs ADUs and JADUs in Anaheim. Detached new-construction ADUs require 4-foot rear and side setbacks. Conversions of legally established structures are exempt from setback requirements. Detached ADUs on multi-family lots may be up to 18 feet tall plus 2 feet for roof pitch. On single-family lots the ADU cannot exceed the primary dwelling height. JADUs must be contained entirely within a single-family residence including attached garage and have independent exterior access. Maximum ADU size is 800 sq ft on single-family properties with a minimum of 150 sq ft. Garage conversions do not require replacement parking. Garage door facing a public right-of-way must be maintained.
Building without permit: stop-work order and fines. Unpermitted ADU occupancy may face code enforcement action and daily penalties.
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Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle adu rules.
See how Anaheim's adu rules rules stack up against other locations.
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