Indiana Code Title 36. Local Government § 36-7-9-4

(1) in an impaired structural condition that makes it unsafe to a person or property;

(2) a fire hazard;

(3) a hazard to the public health;

(4) a public nuisance;

(5) dangerous to a person or property because of a violation of a statute or ordinance concerning building condition or maintenance;  or

(6) vacant or blighted and not maintained in a manner that would allow human habitation, occupancy, or use under the requirements of a statute or an ordinance;

(1) An unsafe building and the tract of real property on which the unsafe building is located.

(2) A tract of real property, not including land used for production agriculture, that does not contain a building or structure or contains a building or structure that is not considered an unsafe building, if the tract of real property is: