The review authority may grant a variance only in those cases where findings are made that all of the following conditions and criteria are met:
A. There are unusual, exceptional or extraordinary circumstances or conditions applying to the property that do not apply generally to other property in the same vicinity or district. Such conditions may include topography, unique natural conditions, surroundings and size or unusual shape of the lot.
B. The unusual circumstances or conditions and the strict application of this title cause the loss of a substantial property right possessed by the owners of other properties in the same vicinity or district.
C. The granting of a variance to remedy the hardship will not be detrimental to the public welfare or injurious to properties in the vicinity or district in which the property is located and the variance will be in general keeping with the purpose and intent of this title.
D. The variance approved will be for the least amount that will make possible the legal use of the land, building or structure and will not provide a special privilege inconsistent with the limitations upon use of other properties in the vicinity or use district.
E. The variance will not adversely affect the realization of the comprehensive plan.
F. The need for the variance was not caused by the actions of the applicant or property owner.