The need to provide accommodation for non-sedentary seasonal workers in order to facilitate their recruitment, which is essential to the preservation and development of economic activities such as tourism and agriculture, is an issue that has been clearly identified by the public authorities as a way of supporting these sectors, but has not been sufficiently addressed. This investigation is based on work carried out by the regional audit chambers of Auvergne Rhône-Alpes, Provence-Alpes-Côte d'Azur and Nouvelle Aquitaine, and on some sixty interviews conducted throughout France. Although there are no consolidated statistics on their numbers, the financial jurisdictions estimate that 400,000 seasonal workers need accommodation close to their place of work. Without local accommodation, recruitment becomes more difficult.