Before a replacement manufactured home is placed on the same lot or location within an existing park, a plot plan, drawn to scale, showing the location of the replacement manufactured home on the lot on which it is to be located, together with the location of homes and the boundary line of the park on each adjacent lot, shall be submitted to the Zoning Administrator. Where no lot lines exist for individual lots within a manufactured home park, a lot line shall be deemed to exist equidistant from two adjacent manufactured homes unless a parking apron, accessory structure or other circumstances require the location of an adjacent lot line at a different location.