2918. A person who has for 10 years possessed, as owner, an immovable that is not registered in the land register may acquire the ownership of it only upon a judicial demand.
The possessor may, under the same conditions, exercise the same right in respect of a registered immovable where the owner of the immovable is not identified in the land register; the same rule applies where the owner is dead or an absentee at the beginning of the 10-year period or where the land register indicates that the immovable has become a thing without an owner.