15-minute city

Urbanist Carlos Moreno introduced the 15-minute city concept in 2016. It is associated with chrono-urbanism, which considers how urban form affects the time people spend reaching activities. The familiar 15-minute threshold is a guiding measure, not a universal engineering standard. Plans often emphasize a mix of daily needs—living, working, shopping, health care, education, and leisure—within convenient reach by walking or cycling. Similar proximity-oriented ideas use different time limits and names to suit local conditions.

A city pursuing this approach may combine housing with shops and services, improve walking and cycling routes, support public spaces, and locate community amenities across neighborhoods. The goal is to make daily life less dependent on long trips and private cars while preserving connections to the wider city. The model does not require residents to stay within their neighborhood: it focuses on having useful choices nearby, not on restricting movement. Public transport remains important for trips that are longer, specialized, or outside the local area.

A straight-line radius around a home does not show whether a destination is realistically accessible. Street-network layout, crossing safety, gradients, traffic, service opening hours, affordability, and a person's mobility can all affect the journey. Researchers therefore distinguish the presence of a nearby facility from the ability of different residents to reach and use it. A 2023 study in the Journal of Transport Geography explicitly examined individual and temporal variations in walking accessibility, underscoring why a single travel-time estimate can conceal differences among people and times of day.

Proximity-oriented planning can support walking and cycling and may improve access to local services; mixed-use development and public-space improvements are common implementation tools. The magnitude of environmental, health, and social outcomes depends on local design and how policies are carried out, rather than following automatically from adopting the label. Cities also need to address uneven service distribution, investment, governance, and the risk that neighborhood improvements are not equitably available or affordable. Evaluations should therefore examine actual access and distributional effects, not only citywide averages or stated targets.

Paris made the 15-minute city a prominent element of its urban-policy agenda during Mayor Anne Hidalgo's 2020 re-election campaign. The World Resources Institute describes the agenda as building on earlier transport and public-space changes, including conversion of part of the Seine riverbank into a car-free linear park in 2016, and later measures such as expanded cycling routes and opening some schoolyards outside school hours. Other cities have adapted proximity planning to their own contexts, sometimes using a different threshold such as a 20-minute neighborhood. These examples are implementations of related aims, not evidence that one template fits every city.