Signes Architecture et Urbanisme was invited to speak at an international conference in Belgrade, organised in partnership with the French Embassy and the French Ministry of Ecological Transition for the launch of a sustainable neighbourhood guide. The talk drew on 30 years of international experience, from the Marshall Islands Urban Resilience programme to biodiversity projects in France. It looked at how nature-based solutions can be built into dense urban fabric, from street trees and permeable surfaces to wetland valorisation and soil health.