81. If the putting in default referred to in section 80 has no effect within the delay mentioned therein, a judge of the Superior Court sitting in the district where the immoveable is situated may, upon motion presented even during the suit, require the owner or occupant of the immoveable to take the steps required to abate the nuisance or unsanitary condition within the delay he determines or prevent its return, and order that on failure to do so within the delay prescribed, the municipality may itself take the required steps at the expense of the owner or occupant.
When the owner and occupant of the immoveable are unknown, cannot be found or are uncertain, the judge may authorize the applicant to take forthwith the required steps to remedy the situation and claim the cost of it from the owner or occupant.
Such expenses and costs shall be assimilated to municipal taxes.