Co-ownership is a modality of property in virtue of which the property of an immovable is distributed by lots in between co-owners. The term co-ownership often refers to the judicial state of property relative to the modality of property. The creation of a divided co-ownership can be relatively long and complex and implies the participation of many professionnals, including the land surveyor.

Divided co-ownership is used in Québec in order to designate the « condo » type of property. It is often used in opposition with undivided co-ownership which wrongly designates another modality of property in which many persons own the same object or piece of land without possible material division of themselves. In divided co-ownership, each owner is proprietor of a privative part (condo) and a share of the common part (parking, walls, etc.). Undivided co-ownership is, most of the time, seen when two or more persons decide to buy one house for example. Both modality of property have their own characteristics and should not be put into opposition since they are not contraries by definition.