The rules, regulations and standards set forth in Sections 35-18 through 35-23 shall be considered the minimum requirements for the protection of the public health, safety and welfare of the citizens of the Borough. Any action taken by the Planning Board under the terms of Sections 35-18 through 35-23 shall give primary consideration to such matters and to the welfare of the entire community. However, if the applicant can clearly demonstrate that, because of peculiar conditions pertaining to his land, the literal enforcement of Sections 35-18 through 35-23 is impracticable or will exact undue hardship, the Planning Board may permit such variances as may be reasonable, within the general purpose and intent of the rules, regulations and standards established by Sections 35-18 through 35-23.