(35 ILCS 200/21-350)
    Sec. 21-350. Period of redemption. Property sold under this Code may be redeemed at any time before the expiration of 2 years from the date of sale, except that:
        (a) If on the date of sale the property is vacant
    
non-farm property or property containing an improvement consisting of a structure or structures with 7 or more residential units or that is commercial or industrial property, it may be redeemed at any time before the expiration of 6 months from the date of sale if the property, at the time of sale, was for each of 2 or more years delinquent or forfeited for all or part of the general taxes due on the property.
        (b) If on the date of sale the property sold was
    
improved with a structure consisting of at least one and not more than 6 dwelling units it may be redeemed at any time on or before the expiration of 2 years and 6 months from the date of sale. If, however, the court that ordered the property sold, upon the verified petition of the holder of the certificate of purchase brought within 4 months from the date of sale, finds and declares that the structure on the property is abandoned, then the court may order that the property may be redeemed at any time on or before the expiration of 2 years from the date of sale. Notice of the hearing on a petition to declare the property abandoned shall be given to the owner or owners of the property and to the person in whose name the taxes were last assessed, by certified or registered mail sent to their last known addresses at least 5 days before the date of the hearing.
        (c) If the period of redemption has been extended by
    
the certificate holder as provided in Section 21-385, the property may be redeemed on or before the extended redemption date.
(Source: P.A. 86-286; 86-413; 86-418; 86-949; 86-1028; 86-1158; 86-1481; 87-145; 87-236; 87-435; 87-895; 87-1189; 88-455.)