Hendersonville, TN Accessory Structures: ADU Owner Occupancy (2026)

At least one owner of the premises must reside in either the principal dwelling or the accessory apartment (attached to or within) or dwelling (detached) or both. For purposes of this section, "reside" means that this is the owner's primary place of residence for at least 75% of the year.

C. The people residing in the principal dwelling, the accessory apartment, and detached dwelling must be parents, grandparents, great grandparents, children, step-children, inlaws, or niece(s) or nephew(s) of one or more of the people residing in the other dwelling, or they may be a domestic employee of the people residing in the dwelling or a family member of the employee(s).

D. There shall be only one water and one gas utility meter and connection to serve both the principal dwelling and accessory apartment or dwelling.

E. The lot shall have only one driveway to serve both the principal dwelling and the accessory apartment or dwelling.

F. At least four off-street parking spaces must be provided. Garage or carport spaces do not count toward meeting this requirement.

G. An instrument must be recorded with the Sumner County Registrar's office covenanting that the property will be used in accordance with the terms of this Ordinance. The covenant shall run with the land and be binding to future property owners.

H. A Zoning Permit shall be secured for an accessory apartment or accessory dwelling prior to construction and/or occupancy of the accessory apartment or accessory dwelling.