Today more than ever, the elected is a key figure for the construction company. The decentralization laws have given them greater powers as they have submitted them to more constraints. Constantly at the front, local elected officials are an essential part of institutional relations. To meet the challenges of its business and those of the communities, the company built a diplomat close cooperation and solidarity between the private sphere and the public sphere. He had to adapt, to develop a new expertise in order to be able to answer to ever more accurate requests from communities. It is a communicating strategist, able to meet the challenges of relationships with the political and institutional power.