Questione giuridica chiave
Whether the appellants had standing to invoke arbitrary application of § 71 PBG/ZH and property protection
Decisione estratta
The complaint was inadmissible on this point because the appellants did not show how the alleged deviation from the ordinary building rules affected their own legally protected interests.
Motivazione estratta
Neighbor standing exists only for norms protecting neighbors; the appellants relied on general aesthetic objections and did not explain a concrete adverse effect.