Palaeoethnographic studies of Late Glacial hunter-gatherers in the Paris Basin have for many years focused on dwelling practices at the level of both occupation units and camps. A parallel research orientation has attempted to identify the authors of lithic and bone/ antler production. This approach has been particularly fruitful in the context of Magdalenian sites, but was not applied to an Azilian site until 1994, in the context of excavations at Le Closeau. In the earliest level of this site, classic studies allowed the identification of highly structured dwelling units, while the relations between them were determined through lithic refitting. Recent analyses associating data concerning seasonality, the utilisation of space and quantities of abandoned artefacts open new perspectives for understanding the economic and social organisation of Azilian territory.