The CPAM de la Somme is part of the national network of the Caisses Primaires d’Assurance Maladie, led by the Caisse Nationale d’Assurance Maladie (CNAM). Involved in the service of insured persons, the CPAM's mission is to cover legal benefits. The CPAM de la Somme wishes to make the building hosting the activities of its headquarters in Amiens a place to experiment with solutions that could be deployed elsewhere in the region and at national level. Thus, CPAM opted for a global building quality approach based on the Rev3 reference framework ‘renovation of tertiary buildings’ and the implementation of a global performance contract to ensure that the design, implementation, operation and maintenance objectives were met. The comfort and health of the users and the energy performance of the building are the central axes of this project imagined in coherence with the regional reference framework Rev3 "renovation of tertiary buildings".