Questione giuridica chiave
Whether the municipal additional sewer connection fee violated Art. 49 BV and the wastewater 'polluter pays' principle because it was calculated solely on the increase in the official property value.
Decisione estratta
No. For one-time connection fees, using the official value or building-insurance value as a proxy for the benefit conferred is compatible with the polluter-pays principle.
Motivazione estratta
Art. 60a GSchG primarily governs periodic user fees; for connection fees, the legislature may also use benefit-oriented criteria. The official value is an accepted proxy for the advantage of the sewer connection, and the new value increase caused by the renovation justified a supplementary fee.