Land Use & Zoning

In Tennessee, an 'accessory dwelling unit' (ADU) is typically defined as:

AA commercial unit attached to a residential structure
BA secondary housing unit on a single-family lot, either attached or detached from the primary residence✓ Correct
CA unit required by zoning for agricultural workers
DA mobile home on a permanent foundation

Explanation

An ADU (accessory dwelling unit, in-law suite, granny flat) is a secondary residential unit on a single-family lot, creating additional housing supply. Many Tennessee municipalities are updating zoning codes to facilitate ADUs.

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