Questione giuridica chiave
Whether the cantonal court violated municipal autonomy by annulling the PPA for lack of detailed architectural integration rules
Decisione estratta
No. In a sensitive site with high patrimonial value, the plan had to contain specific rules on integration; the cantonal court did not act arbitrarily or exceed its powers.
Motivazione estratta
The PPA fixed only dimensions and buildable area, but not roof form, cornice height, façades, or similar integration criteria. A mere reference to the general aesthetic clause was insufficient for such a sensitive perimeter.