The importance of accessing all relevant urban services in less than 15 minutes’ travel time is easy to understand, but it seems that, not coincidentally and due to the mobility restrictions of the COVID-19 pandemic, it has finally come to the fore in a number of cities around the world. While Carlos Moreno’s idea is not new, its recent inclusion on the political agenda in a number of cities suggests that it has reached a point of maturity in the political discussion, encompassing actions to reduce emissions, traffic issues, pedestrian re-conquest of public space and promotion of interaction and participation, advocacy of healthier lifestyles and active ageing. As a concept under development, the 15-minute city would require scientific validation, as several teams in cities such as Barcelona and Naples have begun to do, and subsequent integration into the professional “toolbox” of urban and transport planners, in order to become widespread. In this sense, it seems essential to understand both its conceptual background and the keys to its implementation. In this paper, the principles and strategies enunciated by Carlos Moreno and his team (Moreno et al. 2020) are explored and related to background and concepts more specific to the discipline. For example, “Cronourbanisme” (the linking of rhythms and everyday spaces, in Moreno’s words), with the Italian “Planificazione temporali” or with gender urbanism; Topo-philie” (attachment to place) with “Place-making” or “New urbanism” or “Chronotopie” (differentiated use of a place according to temporality) with temporary street closures or Tactical urbanism, through the case of Paris and also in other less known but very similar cases, such as Portland (20-minutes neigborhoods, 2012), Melbourne (20-minutes neigborhoods, 2017) and Ottawa (15-minutes neigborhoods, 2019).