Key concept in divided co-ownership, the destination determines the affectation of the private and common portions. It also determines the extent of co-owners' rights and protects the collective interest. It generally constitutes all the conditions under which a co-owner has acquired his private portion. The declaration of co-ownership (constitutive act of co-ownership) determines the destination of the immovable, the destination of the private portions, and the destination of the common portions.