35 ILCS 200/16-80: Reduced assessment of homestead property.

In any county with fewer than 3,000,000 inhabitants, if the board of review lowers the assessment of a particular parcel on which a residence occupied by the owner is situated, the reduced assessment, subject to equalization, shall remain in effect for the remainder of the general assessment period as provided in Sections 9-215 through 9-225, unless the taxpayer, county assessor, or other interested party can show substantial cause why the reduced assessment should not remain in effect, or unless the decision of the board is reversed or modified upon review.