This article will apply to all mobile homes located on private property within the Town of Ashley, Indiana, from June 9, 1964, except that owners of mobile homes situated on private property at the time of this article is enacted will not be required to revise their esisting installations to conform to the provisions herein. However, it shall be mandatory that these provisions be strictly adhered to if any changes or additions to mobile homes or utility systems existingatthe time this article is enacted are undertaken by the owners. (Ore No. 64- 2, § 1A, 6-9-64)