Kernrechtsfrage
Whether Art. 24 RPG applied because the previous special zoning order had become void after demolition of the hotel
Extrahierter Entscheid
The special planning order remained formally valid; demolition did not make it void, and the area remained subject to a planning duty rather than Art. 24 RPG.
Extrahierte Begründung
Defects in a planning act are generally only voidable. Demolition of the hotel created at most changed circumstances; such substantive changes require formal plan amendment or withdrawal of approval, not a finding of nullity.