(1) That there are unique physical circumstances or conditions, including irregularity, narrowness or shallowness of lot size or shape or exceptional topographical or other physical conditions peculiar to the particular property and that the unnecessary hardship is due to such conditions and not the circumstances of conditions generally created by the provisions of this chapter in the neighborhood or district in which the property is located;
(2) That, because of such physical circumstances or conditions, there is no possibility that the property can be developed in strict conformity with the provisions of this chapter and the authorization of a variance is therefore necessary to enable the reasonable use of the property;
(3) That such unnecessary hardship had not been created by the appellant;
(4) That the variance, if authorized, will not alter the essential character of the neighborhood or district in which the property is located nor substantially or permanently impair the appropriate use of development of adjacent property nor be detrimental to the public welfare; and
(5) That the variance, if authorized, will represent the minimum variance which will afford relief and the least modification possible of the regulation in issue.