Kernrechtsfrage
Whether the public-law appeal against the building permit was admissible and whether the appellant had standing.
Extrahierter Entscheid
The public-law appeal was the correct remedy, and the neighbor had standing, but requests beyond annulment were inadmissible.
Extrahierte Begründung
The permit was challenged mainly on arbitrariness in cantonal law and on constitutional property rights; the appellant was directly affected by the adjoining construction.