Article 1383 C ter of the French General Tax Code
Unless the municipality or public inter-municipal cooperation body with its own tax system decides otherwise, in accordance with the conditions laid down in I of Article 1639 A bis, properties located in the priority urban policy neighbourhoods defined in article 5 of Law no. 2014-173 of 21 February 2014 programming for the city and urban cohesion are exempt from property tax on built properties for a period of five years….