In order for property to be considered as blighted and subject to increased taxation, the property must be determined:

1. Unfit for human habitation or unfit for commercial, industrial, or business use and not in compliance with applicable codes; or
2. Vacant and being used in connection with the commission of drug crimes; or
3. Constituting an endangerment to the public health or safety as a result of unsanitary or unsafe conditions; and
4. Not a dwelling house, which is being used as the primary residence of one or more persons.