Simon Ronai

Simon Ronai is a French geographer and urban planner, specializing in territorial development and urban planning. With degrees in geography and political science, he led the ORGECO consultancy, contributing to the development of Local Urban Plans (PLU), Local Housing Programs (PLH), and urban projects related to the National Agency for Urban Renewal (ANRU). An expert in metropolitan development, he worked with Antoine Grumbach on the Seine Métropole project and with David Mangin on the prefiguration of Aix-Marseille Métropole. Since 2001, he has been involved in metropolitan construction in Île-de-France alongside Pierre Mansat and local authorities in the Grand Paris. Simon Ronai also regularly publishes in the journal Hérodote, where he analyzes the issues of metropolitan governance, ecological planning, and decentralization. In 2024, he published the article "Comment les maires ont tué la Métropole du Grand Paris", highlighting the institutional fragmentation that hinders the metropolis's development. Recently, he contributed to the book "Pour en finir avec le petit Paris" (2024), in which he examines the densification of Paris and the limits of its urban expansion.