105 ILCS 5/10-23.3
After provision has been made for the payment of all school expenses, to appropriate from the educational fund school funds or to borrow funds for the purchase of real estate and for the improvement by construction of buildings or other structures, or improved real estate in a deteriorated or uninhabitable condition, for vocational and other educational training of pupils, and as incident thereto and when authorized or requested by resolution adopted by the affirmative vote of two-thirds of the members of the school board, to acquire title to the real estate in the name of the school district and sell and convey it; provided: that no such property shall be so bought or used as a schoolhouse or for permanent use as school property; that such property so purchased and improved shall be sold or otherwise disposed of within 5 years from the date of its acquisition; that not more than one piece of real estate to be improved and one piece of improved real state in a deteriorated or uninhabitable condition may be so purchased for each secondary school or area vocational center which offers vocational training within the school district for any such purpose in any one calendar year, unless additional properties are examined and approved by the Superintendent of the Educational Service Region in the county in which the district is located, for larger training programs necessitating more property to accommodate larger student enrollments; and that no such real estate may be acquired for any such purpose by means of eminent domain proceedings. If the school board does not hold legal title to the school site or other school property that is to be used for any purpose authorized by this Section, then upon the adoption of the resolution by 2/3 of the board members of the district requesting the conveyance of a school site or other school property or a portion thereof the trustees of schools or other school official having legal title to such property shall convey such property to such school district as provided in Section 5-21.
105 ILCS 5/10-23.3