Data from the National Artificialisation Portal [https://artificialisation.developpement-durable.gouv.fr](https://artificialisation.developpement-durable.gouv.fr).
This data is distributed to a communal grid, with a step of annual time, for the period 2009-2021 (from 1 January 2009 to 1 January 2021).
In addition, the data is accessible via [a dashboard](https://cartagene.cerema.fr/portal/apps/dashboards/9810991c73dd463191e84e7111a1b639) and a [dynamic mapping](https://artificialisation.developpement-durable.gouv.fr/cartographie-artificialisation)
The complete methodology, together with the relevant definitions and treatment limits are available on the national portal: [https://artificialisation.developpement-durable.gouv.fr](https://artificialisation.developpement-durable.gouv.fr)
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