The binding legal principle established is that co-ownership constitutes bound co-ownership where there exists a separate and distinct legal relationship between the co-owners, extrinsic to the co-ownership itself, of which the co-ownership is merely one consequence. Such extrinsic relationships can be created by commercial agreement between contracting parties, and are not limited to conventional categories like partnership or marriage in community. In bound co-ownership, the actio communi dividundo is unavailable until the primary relationship creating the co-ownership is terminated in accordance with its terms. The characterization of co-ownership as bound or free must be determined by examining the nature and terms of the relationship between the parties, not by starting from a presumption that all co-ownership is free unless expressly excluded. Where the subject of a transaction is a business enterprise comprising both the business itself and immovable properties on which it operates, the co-ownership must be analyzed in relation to the business relationship as the primary subject, not merely the consequential co-ownership of the immovable properties.