This document discusses the concept of a 15-minute city, where residents can meet most of their daily needs within a 15-minute walk or bicycle ride from their homes. It provides examples of cities that are implementing this model, including Paris, Nantes, Milan, and Copenhagen. The 15-minute city is described as having livable, viable and equitable neighborhoods with good quality of life, where residents can live, work, access education, healthcare and other services in close proximity. The COVID-19 pandemic has created an opportunity to radically change lifestyles and implement the 15-minute city as a sustainable urban development model.