The state and integration of its natural environment are just as important in defining an advanced city as its digital connection, innovative architecture, or economic efficiency. This fundamental layer, which is sometimes disregarded in models of urban growth, actively determines a city’s usefulness, health, and preparedness for the future rather than serving as a passive backdrop to development. The natural environment is not only to be protected but also thoughtfully incorporated into the framework of urban development in the context of advanced urbanism. The ecological dimension offers the vital infrastructure that supports both human and environmental well-being, from peri-urban agriculture and biodiversity corridors to climate-regulating green spaces and resilient food systems.