This paper presents the results of a critical analysis of the 15-Minute City concept, developed through a comparative analysis of three case studies: the ville du quart d’heure in Paris, the Superilla plan in Barcelona and the Piazze Aperte programme in Milan. This comparative analysis is addressed through the lens of the theoretical and design paradigm of civic design/capital web and aims to highlight the limits and potential of these models and inform future research directions to pursue the eco-social transition of urban systems. [ABSTRACT FROM AUTHOR]