AFD is regularly called upon to support urban development projects in areas recovering from crises, be they natural or political. Above and beyond the simple reconstruction of buildings, such requests bring us to question issues regarding the sustainable regeneration of social and economic dynamics. A recent study conducted by the Ecole d‘urbanisme de Paris1 examined thirty projects in the sectors of construction and essential services that had been undertaken by AFD and partnering sponsors in Haiti, the Central African Republic, and other countries between 2005 and 2015. Grouped under the headings of economic revitalisation and reinforcement of social dynamics, this report presents a few of the most significant actions.