Land Use & Zoning

In Arizona, an 'accessory dwelling unit' (ADU) or 'granny flat' is:

AA separate structure on a commercial property
BA secondary residential unit on the same lot as the primary residence, either attached or detached✓ Correct
CA temporary structure allowed only during construction
DOnly permitted in agricultural zones

Explanation

An ADU (accessory dwelling unit) is a secondary, independent living space on a single-family lot—either attached to the main home (like a basement apartment) or detached (like a backyard cottage). Arizona has limited local restrictions on ADUs to increase housing supply.

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