A buffer area shall be required for churches or other places of worship along each boundary of the lot that is contiguous to property zoned for residential use in the Borough of Little Ferry or any adjacent municipality. The buffer area shall be seventy-five (75) feet in width for the entire length of each side of the lot that abuts any property zoned for residential use in the Borough of Little Ferry or any adjacent municipality. In the event that the buffer area required above would result in a buffer area that exceeds fifteen (15%) percent of the existing total area of the lot, then, in such event, the buffer area for that lot may be reduced in width so that the same constitutes twenty-five (25) feet or fifteen (15%) percent of the lot area, whichever is greater.