Questão jurídica principal
Whether the communal sewer connection fee based on building insurance value violates the causation principle or constitutional prohibitions.
Decisão extraída
For a one-time sewer connection fee on a residential building, using the building insurance value as the sole assessment basis is not arbitrary and does not violate the causation principle.
Fundamentação extraída
For connection fees, the causation principle allows consideration of the benefit conferred on the owner; for residential buildings the insurance value is generally a reliable proxy for that benefit and also tends to reflect expected wastewater volume. The commune's rule included an exception for extraordinary cases, and the luxury features of the house could justify a higher fee.