In 2018, the municipality chose not to exercise its right of pre-emption during the sale of my property. Today, after my buyer withdrew, I am putting my property back on the market. Does the urban pre-emption right apply again?

Yes. The law provides that when the seller has not sold their property within three years following the municipality’s decision not to exercise its pre-emption right, the municipality regains this right (Art. L213-8, paragraphe 2, Urban Planning Code).