This report concerns the extent to which participatory spatialized knowledge construction1 and learning are conducive to dealing with challenges of strategic domains of urban development; such as economic growth, reducing social inequalities and vulnerabilities, increasing environmental sustainability, and making use of decentralized and participatory fiscal flows. Our main idea is that spatial knowledge construction and use is a strategic instrument in urban development, making explicit the various types of knowledge existing in cities, and reflecting the priorities of different actors in the city (government, private sector and citizens). We focus on urban development processes in which various kinds of knowledge are produced, exchanged, contested and used, and the extent to which joint learning and collective local formulation of principles of change is generated by such processes.