1. If the building collapses, the owner of the lower floor shall rebuild their lower floor as it was before. If they refrain and the owner of the upper floor rebuilds it with their permission or the Court's permission, they shall have recourse for the share of the owner of the lower floor in what they have spent. 2. If the owner of the lower floor refrains and the owner of the upper floor rebuilds the building without the permission of the Court or the owner of the lower floor, they may have recourse against the owner of the lower floor for their share of the value of the building at the time of reconstruction. 3. If the owner of the upper floor rebuilds the lower floor without first referring the matter to the owner of the lower floor and establishing their refusal, the owner of the upper floor is deemed to have acted gratuitously and shall have no right of recourse. 4. The owner of the upper floor may, in the two cases provided for in Paragraphs (1) and (2) of this Article, prevent the owner of the lower floor from disposing of and using the property until their right is satisfied. They may also lease it with the court's permission and recover their right from the rent.
Interpretation and application must be checked against the official text and current version.