Every city possesses zones devoid of human traffic during the day or at night. By the reclusion which they contain, these places make vulnerable whoever ventures and particularly women. To remedy this situation, the group Conscience Urbaine makes the bet that by modifying an urban place by the art, it will change the perceptions, will increase the attendance and consequently the safety of the place. More than a simple project of art in the public place, we speak about a concerted action which rests on the cooperation of the various actors who can act on the zone. We followed the projects of Conscience Urbaine during the summer and the autumn, 2015 to understand how these could be linked to an approach of social innovation. We also observed the approach from the point of view of the models of deep changes to succeed in understanding what braked or fed the innovation and the creativity in the process of action of the group.