No sub­di­vi­sion plat or re‑plat shall be filed for record or record­ed in the Office of the Recorder of Deeds, unless and until the approval of the Coun­ty Board is endorsed there­on. No lot shall be sold for such sub­di­vi­sion plat or re‑plat until it has been approved by the Coun­ty Board and filed for record in the Office of the Recorder of Deeds as here­in pro­vid­ed.