Alexandre Apsan Frediani is a principal researcher at the Human Settlements Group of the International Institute for Environment and Development, in London (UK). Alexandre leads the housing justice thematic work of IIED and he specialises on issues around human development in cities of the global South. Alexandre’s work explores participatory approaches to planning and design of interventions in informal settlements in cities in Latin America and Sub-Saharan Africa. He has also been conducting research and development projects focusing on the role of knowledge production and translation in advancing a more socially and environmentally just urban development. In his most recent research initiatives, Alexandre is a co-investigator for the research projects Knowledge in Action for Urban Equality and Transforming Universities for a Changing Climate. Alexandre is an expert affiliate of Architecture Sans Frontières-UK, and he is part of the boards of Habitat International Coalition and the Sierra Leone Urban Research Centre.