Tenn. Code § 13-21-104
An ordinance adopted by a municipality under this part shall provide that the public officer may determine that a structure is unfit for human occupation or use if the public officer finds that conditions exist in such structure which are dangerous or injurious to the health, safety or morals of the occupants of such structure, the occupants of neighboring structures or other residents of such municipality. Such conditions may include the following, without limiting the generality of the foregoing: defects therein increasing the hazards of fire, accident, or other calamities; lack of adequate ventilation, light, or sanitary facilities; dilapidation; disrepair; structural defects; or uncleanliness. Such ordinance may provide additional standards to guide the public officer, or the public officer's agents, in determining the fitness of a dwelling for human occupation or use.
T.C.A. § 13-21-104