Section 105 ILCS 35/5 - Notice of proposed school(a) To protect the safety and welfare of children in a community and the rights of their families, in any municipality with a population greater than 1,000,000, the board of education of the school district constituted by that municipality shall give written notice of any proposed construction of a building to be used as a school or any conversion of an existing building to new use as a school. The notice shall be sent by certified mail, return receipt requested, to each owner of residential property the lot line of which is contiguous with or within 250 feet of the lot line of the site on which the school is proposed to be constructed or the site of the building that is proposed to be converted to use as a school.(b) The notice shall identify the site described in subsection (a) and shall state the date, time, and place of a public hearing to be held on the proposed construction or conversion.