Mo. Rev. Stat. § 80.190
Whenever the board of trustees of any town or village shall determine to have any sidewalk built or repaired, as contemplated by section 80.180, the said board of trustees shall cause at least ten days' notice, in writing, to be served on the owner or owners of any such property or lot in said town or village, which said notice shall require such owner or owners of such property or lot to begin to build, repair and complete the building and repairing of any such sidewalk in reasonable time thereafter; which said notice shall contain a description of each property or lot as aforesaid, and a general description of the character of such sidewalk, giving the length and breadth of such sidewalk and the material of which all or any part thereof shall be composed; and if, at the expiration of fifteen days after the service of said notice, if in writing, or if by publication, at the end of four weeks after said publication, said owner or owners as aforesaid shall not in good faith have commenced to build and repair any such sidewalk as aforesaid, and complete the same in reasonable time thereafter in the judgment of the board of trustees, said board of trustees shall cause such sidewalk to be built or repaired at the expense of such town or village, the cost and expense of which shall constitute a lien on the property or lot along which said sidewalk may be built or repaired as aforesaid, and the said town or village may enforce the said lien against such property or lot in any court of competent jurisdiction; and in such cases a certified copy of any special tax bill for such work, approved by the board of trustees, shall in all cases be prima facie evidence that the work therein stated was done along the property therein mentioned and the amount thereof as stated therein is due and correct and the provisions of the law and ordinances have been carried out; provided, the owner or owners of said property or lot may pay into the treasury of said town or village the cost and expense of building or repairing said sidewalk by the town or village, at any time before the sale of said property or lot for such cost and expense.
§ 80.190, RSMo