Questione giuridica chiave
Whether the appellants had standing to challenge the cantonal judgment under Art. 89(1)(a) BGG.
Decisione estratta
No standing existed because they had not participated in the cantonal proceedings and the judgment did not create legal effects for them.
Motivazione estratta
The Federal Court held that the appellants were not parties to the cantonal case, were not named in the judgment, and were not legally bound by it. Any future procedure concerning their parcel would have to include them with full party rights; until then, they were not directly affected.