When a plan for proposed major streets or other public improvements has been adopted, and when building and setback lines, centerlines for proposed streets, or the limits of proposed sites for public improvements have been carefully determined and accurately delineated on maps recommended by the planning and zoning commission and adopted by the city council, no building permit shall be issued for, and no new building or structure shall be erected within building or setback lines or within the proposed sites for public improvements, or within the right-of-way for proposed streets.

(Code 1964, § 19.620)

     State law reference(s)--Similar provisions, RSMo. § 89.100.