The purpose of this paper is to advocate for the importance of creating an enabling environment for slum upgrading and affordable housing, supporting urban development, and designing and implementation of comprehensive urban programs that have an impact on a community, market/sector, and policy levels. The identification of land for affordable housing and the regularization of slum settlements are key issues that need to be addressed. Interventions to improve basic services and city infrastructure need to be addressed as part of the entire city development strategy, as they require large investments and will have an impact on the entire city infrastructure, in addition to a direct impact on the ability of the private and public sectors to deliver affordable housing.