Where practical difficulties, unnecessary hardships or results inconsistent with the general purposes of this chapter may result from the strict and literal interpretation and enforcement of the provisions hereof, the planning commission, upon the verified application of any property owner or lessee of the property affected, shall have authority to grant, upon such terms and conditions as it deems necessary, such variances therefrom as may be in harmony with their general purpose and intent so that the spirit of this chapter shall be observed, public safety and welfare secured and substantial justice done.
(Prior code § 22.7 (part))