65 ILCS 5/9-2-34
Any final judgment rendered by a court upon any finding of any jury or of any judge where trial by jury is waived by the parties concerned, shall be a lawful and sufficient condemnation of the land or property to be taken, upon the payment of the net amount of the finding, as hereinafter provided. It shall be final and conclusive as to the damages and benefits caused by the improvement, unless the judgment is appealed from. But no appeal shall delay proceedings under the ordinance, if the petitioner files in the case its written election to proceed with the improvement notwithstanding that appeal and deposits, as directed by the court, the amount of judgment and costs, after deducting the benefits assessed and adjudged against that property, if any. If the petitioner so elects to make such a deposit prior to the final determination of any appeal, it shall thereby become liable to pay to the owners of and parties interested in the property in question, the difference, if any, between the amount so deposited and the amount ultimately adjudged to be the just compensation to be paid on account of the property, and interest on any such difference at the rate of 5% annually from the date of the making of the deposit, and costs.
65 ILCS 5/9-2-34