Kernrechtsfrage
Whether the heirs had standing to challenge the alleged breach of noise protection rules (OPB/SIA 181).
Extrahierter Entscheid
They lacked standing because the alleged noise impacts concerned mainly the occupants of the host building, not the appellants as nearby neighbors.
Extrahierte Begründung
The record did not show that the appellants would be affected more intensely than the general public; no immediate neighborhood noise impact was demonstrated.