A Festenummer or Lease number[1] is part of a unit in the Norwegian property register.
Each municipality is divided into a certain number of Gårdsnummers .
Under a Bruksnummer, a Festenummer can be established as an independent unit that can be traded and pledged .
The festenummer indicates that the property is a rental plot, where an annual rental fee is paid to the owner of the Bruksnummer.
A common way of writing a land registry designation is for example.