Question juridique clé
Whether the appeal against the cantonal remand decision with cost allocation was admissible without irreparable harm.
Solution extraite
The remand decision was an interlocutory decision; the contested cost allocation could be challenged later after the final decision, so no irreparable harm was shown.
Motifs extraits
Under Art. 93(1)(a) BGG, an interlocutory decision is appealable only if it causes irreparable harm. A cost ruling in a remand decision can be reviewed together with the subsequent final decision, even if the property is later sold; therefore the appellant retained an effective later remedy.