That because of special circumstances applicable to the property, including its size, shape, topography, location, or surroundings, the strict application of the provisions of this Chapter deprives such property of privileges enjoyed by other property in the vicinity and in an identical zone. For the purposes of this subsection, "special circumstances" shall not include hardships which are self-imposed by the owner of the property;

That the granting of such variance will not constitute a special privilege inconsistent with the limitations upon other properties in the vicinity and zone in which the property is located;

That the granting of such variance will not be detrimental to the public welfare or injurious to property or improvements in the area in which the property is located; and

That the granting of such variance will be substantially in conformance with the General Plan and compatible with the existing patterns of land use and development in the surrounding area.