Questão jurídica principal
Whether the administrative federal appeal was admissible against a cantonally based exception permit under spatial planning law.
Decisão extraída
The administrative appeal was not admissible because the challenged exception permit rested on cantonal and communal law, not on directly applicable federal law.
Fundamentação extraída
Art. 23 RPG refers exception permits within the building zone to cantonal law and does not itself create an independent federal-law decision subject to administrative appeal.