Article R1511-4 of the French General Code of Local Authorities
I. – For the application of this section, the market value of the land or buildings used as a reference for determining the amount of aid that may be granted by the local authorities and their groupings, under the conditions laid down in Article L. 1511-3, is set by the departmental or, where applicable, regional director of public finance or by an expert. In cases where its opinion is required…