New Double-Wide

I own my land. I purchased a new double-wide mobile home to replace my old mobile home. It will be placed about 15 feet behind the old home. Do I have to remove the old home before installing the new home in Calcasieu Parish, Louisiana? If so, can I purchase a 90-day extension? We are still living in the old home. But as soon as the new home is on line, and the old home empty, We will remove it as soon as practical.