70 ILCS 1205/8-12

In addition to other powers and authority now possessed by it, every park district shall have the power:

(1) To lease from any public building commission created pursuant to the provisions of the Public Building Commission Act, approved July 5, 1955, and as amended from time to time, any real or personal property for the purpose of securing office or other space for its administrative corporate functions for a period of time not exceeding twenty years;

(2) To pay for the use of this leased property in accordance with the terms of the lease; and

(3) To enter into such lease without making a previous appropriation for the expense thereby incurred.