A luxury real estate portal has listed the "Salzburg Castle," formerly known as the Porsche Villa, for sale at 12.7 million euros. The property includes a unique legal entitlement to a private tunnel and underground garage passing through the Kapuzinerberg. Salzburg's mayor has confirmed that these specific rights will be transferred to the new owners. However, the arrangement has sparked political controversy. The Green Party is calling for the reversal of this "perpetual easement." They argue against the continued existence of such exclusive private privileges. The sale now highlights a clash between high-end real estate and public urban policy.