By organising an architectural competition for the construction of an administrative and cultural centre, the municipal council of Fosses-la-Villein in the province of Namur killed two birds with one stone. Not only do the municipal services now have a building tailored to their needs, but they have also saved a beautiful site that might otherwise have fallen prey to property developers who do not value local heritage. The proposal by Reservoir A, A 11, Piron Architectes and Atelier Paysage was well received by everyone. The architects did not deviate significantly from the core concept developed during the competition phase.

The municipal services of Fosses-la-Ville, the CPAS (Centre Public d’Action Sociale – the Walloon social services) and the cultural centre were previously housed in five buildings scattered across the municipality. As a result, a simple administrative formality was often an ordeal for residents. Moreover, the buildings, which were difficult to access, were too small. However, extending the town hall was not an option, as it is situated right in the town centre. Towards the end of 2008, the municipal council became interested in the 17th-century Winson Castle and the surrounding three-hectare wooded estate.