Question juridique clé
Whether denying retroactive recovery of erroneously calculated connection fees violated municipal autonomy.
Solution extraite
No. The federal court held that the cantonal court's refusal to allow a supplementary charge was not arbitrary and did not infringe municipal autonomy.
Motifs extraits
The municipality had no discretion under § 22 VRG/SO; the decisive question was whether the lower court's application of withdrawal rules was arbitrary. The court accepted the high weight of legal certainty and reliance interests for finalized fee decisions.