Tennessee Code Title 66. Property § 66-9-101

(1) “Historically significant” means any structure more than fifty (50) years old; and

(2) “Preservation restriction” means a right, whether or not stated in the form of a restriction, easement, covenant or condition, in any deed, will or other instrument executed by or on behalf of the owner of the land or in any order of taking, appropriate to preservation of either a structure or a structure and the land upon which such structure is located, historically significant for its architecture or archaeology, to prohibit or limit any or all of the following: