This layer contains the rents of the apartments as they are advertised in the real estate ads. Thus, only new rents are taken into account and not current contracts. Rents are expressed at municipal level in euros per square meter and refer to the average rent over a one-year period. The number of observations reported corresponds to the number of offers after selections and processing. Rents are calculated from data of real estate advertisements published in the daily and specialized press and on the Internet.