65 ILCS 5/11-12-8
The corporate authorities of the municipality shall determine whether a proposed plat of subdivision or resubdivision complies with the official map. To secure such determination, the person requesting the subdivision or resubdivision shall file four copies of a plat thereof with the clerk of the municipality, and shall furnish therewith four copies of all data necessary to show compliance with all applicable municipal regulations and shall make application for preliminary or final approval of the proposed plat.
Whenever the reasonable requirements provided by the ordinance including the official map shall indicate the necessity for providing for a school site, park site, or other public lands within any proposed subdivision for which approval has been requested, and no such provision has been made therefor, the municipal authority may require that lands be designated for such public purpose before approving such plat. Whenever a final plat of subdivision, or part thereof, has been approved by the corporate authorities as complying with the official map and there is designated therein a school site, park site or other public land, the corporate authorities having jurisdiction of such use, be it a school board, park board or other authority, such authority shall acquire the land so designated by purchase or commence proceedings to acquire such land by condemnation within one year from the date of approval of such plat; and if it does not do so within such period of one year, the land so designated may then be used by the owners thereof in any other manner consistent with the ordinance including the official map and the zoning ordinance of the municipality.
The corporate authorities may by ordinance provide that a plat of subdivision may be submitted initially to the plan commission for preliminary approval. The application for preliminary approval shall show location and width of proposed streets and public ways, shall indicate proposed location of sewers and storm drains, proposed dedication of public grounds, if any, lot sizes, proposed easements for public utilities, and proposed method of sewage and waste disposal, but need not contain specifications for proposed improvements.
The plan Commission shall approve or disapprove the application for preliminary approval within 90 days from the date of the application or the filing by the applicant of the last item of required supporting data, whichever date is later, unless such time is extended by mutual consent. If such plat is disapproved, then within said 90 days the plan commission shall furnish to applicant in writing a statement setting forth the reason for disapproval and specifying with particularity the aspects in which the proposed plat fails to conform to the ordinances including official map. If such plat is approved the corporate authority shall accept or reject said plat within 30 days after its next regular stated meeting following the action of the plan commission. Preliminary approval shall not qualify a plat for recording.
Application for final approval of a plat shall be made not later than one year after preliminary approval has been granted. This application must be supported by such drawings, specifications and bond as may be necessary to demonstrate compliance with all requirements of this statute and such regulations as the corporate authorities may provide by ordinance under authority of this statute. This Section is subject to the provisions of Section 11-39-3 of this Code.
The applicant may elect to have final approval of a geographic part or parts of the plat that received preliminary approval, and may delay application for approval of other parts until a later date or dates beyond one year with the approval of the municipal authorities; provided, all facilities required to serve the part or parts for which final approval is sought have been provided. In such case only such part or parts of the plat as have received final approval shall be recorded.
When a person submitting a plat of subdivision or resubdivision for final approval has supplied all drawings, maps and other documents required by the municipal ordinances to be furnished in support thereof, and if all such material meets all municipal requirements, the corporate authorities shall approve the proposed plat within 60 days from the date of filing the last required document or other paper or within 60 days from the date of filing application for final approval of the plat, whichever date is later. The applicant and the corporate authorities may mutually agree to extend the 60 day period.
Except as provided in Section 3 of the Public Construction Bond Act, the corporate authorities may provide that any person, firm or corporation seeking approval of a subdivision or resubdivision map or plat shall post a good and sufficient cash bond, irrevocable letter of credit, or surety bond with the municipal clerk in a penal sum sufficient to cover the estimate made by the municipal engineer, or other authorized person, of expenditures, including but not limited to reasonable inspection fees to be borne by the applicant, necessary to conform to the requirements established and conditioned upon completion of said requirements in a reasonable time. The corporate authorities may, by ordinance, prescribe the form of the cash bond, irrevocable letter of credit, or surety bond and may require surety to be approved by the corporate authorities; provided, that a municipality may permit the depositing of cash or other security acceptable to the corporate authorities, to complete the improvements required in lieu of a bond if it shall so provide by ordinance; and further provided, that no bond or security shall be required to be filed until the corporate authorities have approved the plat in all other respects and have notified the applicant of such approval. If the corporate authorities require a cash bond, letter of credit, surety, or any other method to cover the costs and expenses and to insure completion of the requirements, the requirements shall be subject to the provisions of Section 11-39-3 of this Code.
If the preliminary or final plat is approved, the municipal clerk shall attach a certified copy of the order or resolution of approval to a copy of the plat. If the proposed plat is disapproved, the order or resolution shall state the reasons for the disapproval, specifying with particularity the aspects in which the proposed plat fails to conform to the official map. A copy of the order or resolution shall be filed in the office of the municipal clerk.
If the corporate authorities fail to act upon the final plat within the time prescribed the applicant may, after giving 5 days written notice to the corporate authorities, file a complaint for summary judgment in the circuit court and upon showing that the corporate authorities have failed to act within the time prescribed the court shall enter an order authorizing the recorder to record the plat as finally submitted without the approval of the corporate authorities. A plat so recorded shall have the same force and effect as though that plat had been approved by the corporate authorities. If the corporate authorities refuse to act upon the final plat within the time prescribed and if their failure to act thereon is wilful, upon such showing and upon proof of damages the municipality shall be liable therefor.
65 ILCS 5/11-12-8