A former industrial site relegated behind the railways, the Saint-Jean district (40 ha) must be the subject of an ambitious urban conversion project. Partly in wasteland, since the closure of the municipal slaughterhouse (2002) and several meat companies, it now hosts different types of economic, industrial and tertiary activities, as well as some social and private rental housing in an urban environment that is not qualitative. In the context of the affirmation of the Clermont metropolis as an urban area driving the development of the western regions of the Auvergne Rhône-Alpes region, the urban conversion project aims to be exemplary and innovative both in the process and in the result. The site is identified as a priority urban renewal and development area (EVRUP) at the SCoT Territorial Coherence Schema of Greater Clermont and Priority Intervention Zone (ZIP) of the Integrated Urban Development Project (PDUI) of Clermont Auvergne Métropole. Through the Ecocity label, it also benefits from the state’s support to “build the city of tomorrow sustainable and solidarity”. Given the scale of the site, the multiplicity of issues and the complexity of the project, the City of Clermont-Ferrand wished to give a mandate to the SPL Clermont Auvergne to conduct the studies and procedures necessary to recruit an urban project management team capable of supporting the community