In Latin America, urban concentrations are the base of growing increases in productivity, being human settlements the “platform” for growing economic-productive diversification. Benefits of this process are not well distributed. Approximately half of the population of the Region lives with lacks in basic needs. The existence of theses important and severe social and economic asymmetries in LAC are expressed territorially in human settlements, which presents deficit and extreme conditions of poverty and precariousness on one hand, and on the other good opportunities for income and labor generation and economic productive development. The perspective of urban public management is to how to organize programs, develop strategies and instruments, that will allow solving such challenge: diminishing the gap (poor and rich) by the way of acquiring higher levels of access to goods and services in a more inclusive urban environment. In other words, building a human environment that can reduce vulnerability, human insecurity and risk in urban areas. The work at ECLAC proposes an operating tool: the “Urban Sustainable Agenda. It is based on a “panorama” that analyzes the main urban and economic tendencies of the Region, and the preconditions and influences of macroeconomic development on urban dynamics. The main instrument: sustainable economic urban management tool kit, (SEUM), as a virtuous management process of positive and negative urban externalities. It takes into account five priority intervention axes, (land, housing, public spaces, public services and income and employment) in order to overcome precariousness and poverty in urban areas, boost urban economic dynamics and build healthy environments. It is understanding sustainability as a three way approach to development and project investment returns: economic, social and environmental. In this context the main core research, right now, is to measure and to internalize positive and negative externalities in urban projects. In this regards, three are the most critical aspects in public policy implementation: institutional, governance- participation, and finance.