55 ILCS 5/5-30019
A certificate of economic hardship shall be issued by a preservation commission established pursuant to this Division upon a determination by it that the failure to issue a certificate of appropriateness has denied, or will deny, the owner of a landmark or of a property within a preservation district all reasonable use of, or return on, the property. Application for a certificate of economic hardship shall be made on a form and in a manner as prescribed by the preservation commission. The preservation commission may schedule a public hearing concerning the application and provide notice in the same manner as in Section 5-30014 and conduct the hearing concerning economic hardship in the same manner as provided in Section 5-30015.
55 ILCS 5/5-30019