The EUREQUA project (Multidisciplinary Evaluation and Environmental Requalification of Neighborhoods) is an ANR (Sustainable Buildings and Cities) initiative launched by Sinda Haouès-Jouve of LISST (UMR 5193), which began in March 2012 and ended in February 2017 with an international symposium focused on "interdisciplinary and participatory approaches." This research brought together nine partners (LATTS, LISST, GAME, CEREA, ENSA/LRA, IFSTTAR, LEPD, ATELIER LION, IAU/IdF). It examines the challenges of environmental requalification of the urban living environment at the neighborhood level. The project adopts an original methodological approach based on a multidisciplinary team of geographers, sociologists, climatologists, atmospheric physicists, acousticians, and architects, in collaboration with urban environment managers. The aim was to understand how to develop a concept of environmental quality in the living environment that combines a renewed reflection on the materiality of the urban environment with sensitive and social approaches to the relationship with the environment.