The following standards shall be followed in substance by the Building Inspector and Council in ordering repair, vacation or demolition of a dangerous building.
(A) If the building can reasonably be repaired, so that it will no longer exist in violation of the terms of this chapter, it shall be ordered repaired.
(B) If the building is in such a condition as to make it dangerous to the health, morals, safety or general welfare of its occupants or of the public, it shall be ordered to be vacated.
(C) In any case where a building is 50% damaged or decayed or deteriorated from its original value or structure, it shall be demolished; and in cases where a building cannot be repaired so that it will no longer exist in violation of the terms of this chapter, it shall be demolished. In all cases where a dangerous building is a fire hazard existing or erected in violation of the terms of this code or of a statute of the State of Minnesota, it shall be demolished.
(`89 Code, § 21.030)