Co-ownership of a home is the shared ownership of a property by two or more proprietors. In legal terms, each co-owner holds a proportional share of the asset —an undivided interest— and has all the rights of real ownership: the right to use the asset, to receive any income it produces, to transfer their share, to benefit from its appreciation, and to participate in decisions about the asset.
In Spain, co-ownership is regulated primarily in the Civil Code, articles 392 to 406. These articles establish the rights and obligations of co-owners, the rules for managing the common property, and the grounds for terminating co-ownership.
Two main types of co-ownership exist in practice:
Ordinary co-ownership (proindiviso)
The classic form, frequently arising from inheritance: several heirs jointly receive a property. Each has their proportional share but the property isn't physically divided. The problem with proindiviso is that any co-owner can demand division of the common asset at any time (art. 400 CC), which can force a sale or judicial division.
Managed co-ownership (modern model)
The model represented by Vivla, where co-ownership is structured through a Sociedad Limitada (SL). The SL owns the property, and the co-owners are SL shareholders with proportional shares. This structure provides legal stability, eliminates the risk of the proindiviso division action, facilitates share transfer and enables professional asset management.
Managed co-ownership is also known internationally as «co-ownership», «fractional ownership» or «propiedad fraccionada», although these terms have no direct translation in Spanish law.

