Kernrechtsfrage
Whether a waived co-ownership share accrues to the remaining co-owner(s) or becomes ownerless.
Extrahierter Entscheid
A waived co-ownership share accrues to the remaining co-owner(s), who must be registered accordingly.
Extrahierte Begründung
The court followed the prevailing Swiss doctrine: the co-ownership share is only the numerical expression of participation in the common ownership. Waiver therefore means the departing co-owner leaves the community, which is reduced to the remaining co-owners and whose shares increase proportionally by accrual. No case law opposed this view.