Santa Ana Main Library will close on June 20, 2024, for a two-year renovation project. Learn more here.

Can I build a two story ADU?

Attached ADUs may be built up to the same height permitted in the underlying zoning district for the primary building. Detached ADUs may be built up to two stories not exceeding 20 feet in height. Conversion of an existing accessory structure or a portion of the existing primary residence to an ADU is not subject to height requirements.

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