Kernrechtsfrage
Whether the cantonal court arbitrarily interpreted the municipal industrial-zone rule and wrongly required a building permit for the station-service shop.
Extrahierter Entscheid
The cantonal court's interpretation was not arbitrary: the shop could be treated as accessory to the vehicle-sales business and the zone already tolerated mixed industrial and commercial uses.
Extrahierte Begründung
The Federal Court held that many non-industrial businesses already existed in the zone, the municipality had tolerated this mix, and the shop's size and function did not compel a stricter exclusion. The municipal practice could still be tightened in the future, so the judgment was not arbitrary in result.