Thirty days after the posting of the resolution declaring any buildings a nuisance the City Council of the City of Sebastopol shall be deemed to have acquired the jurisdiction to abate such nuisance by razing or removing the building unless the nuisance is abated by the owner or other person interested within the 30-day period or any extension thereof granted by the City Council as provided herein.

In the event the nuisance is not abated within the time prescribed, the City Council may thereupon raze and remove the building so declared to constitute a nuisance or have the same done under its direction and supervision.