No building or structure, use of which shall be voluntarily abandoned or which shall be reconstructed, altered, moved, remodeled or otherwise voluntarily changed, as to conform to the provisions or any of the provisions of this chapter, shall be changed back in any degree, extent or manner to any previous nonconforming or any other nonconforming use, size, type, character or location; nor shall any lands, the use of which shall be changed from a nonconforming to a conforming use or purpose, be changed back in any degree, extent or manner to its previous or any other nonconforming use or purpose, whether as to improvement, size, street frontage or otherwise.