In 2010 the submarine base in Saint-Nazaire was declared ‘Heritage of the XX century’ by the
French Ministère de la Culture et de la Communnication. Thereafter it became the symbol of a
new approach related to heritage that recognises the tangible and intangible heritage in all its
forms, not only restricted to the artifact acknowledged as a ‘monument’. Remembrance, the
material assets or the little known places have thus contributed to defining a new urban
dimension projected toward the future. The case of Saint-Nazare, relating clearly to the
relationship between waterfront and military heritage, encourages us to meditate on the role of
urban design in the transformation of the contemporary city. The same principles connect this case study to several other redevelopment operations in the
European city and, in particular, the French port cities. Starting from the '80s, in order to face
the crisis in the industrial sector, several port cities, including Marseille, Le Havre, Dunkirk and
Saint-Nazaire, produced diverse studies and projects regarding their obsolete or abandoned
industrial areas, in order to boost port activities and to allocate the vacant places to new
activities. Acknowledgment of the value of these port areas as urban resources (as well as
cultural heritage) has consented the regeneration of (often previously interrupted or abandoned)
economic, social and spatial activity.