Homelessness has become a major issue in cities as the world has continued to urbanize. Homelessness is an indicator of society’s success, or else failure, in reducing inequalities, notably those linked to urban health. Homeless persons face heightened susceptibilities to various physical and mental health issues, ranging from sexually transmitted disease, to infections, to substance abuse and psychological disorders. Critically, however, health outcomes associated with homelessness are not equally distributed; they vary depending on social identity (such as age, gender, ethnicity/race, etc.), circumstances (such as poverty, pre-existing conditions, quality of living environments etc.) and power structures (including forms of discrimination and exclusion from the benefits of urban living).Other important aspects of homelessness include the impacts of urbanization on the cost of housing, labour market conditions, and access to public services, including health care and education. The United Kingdom is in the latter stages of its urban transition, with more than 80% of its populating living in urban areas. While homelessness is also a problem in rural areas, it has reached epidemic proportions in many larger metropolitan areas. The situation is especially acute in London, the capital city, where record numbers of people are reported to be sleeping rough[1]. The heterogeneity of the homeless population combined with the complexity of factors that contribute to homelessness and health outcomes present major challenges for both understanding and addressing the health status of homeless persons in cities. In this context, the module aims at tackling the challenges of reducing homelessness and promoting health through better understanding the complex pathways linking homelessness and health outcomes and of the different solutions to these challenges, using London as a laboratory.LEARNING OBJECTIVESThe module invites participants:To analyse and reflect on the challenges of socially just planning practice in the context of homelessness and health.To confront the ethics of conducting research with vulnerable groups in a real world case.To explore primary and secondary methodologies for studying the health of homeless persons.On completion, participants should be able to:Use methodologies for conducting systematic literature reviews.Use an evidence-base to inform recommendations for research and practice.Work in multidisciplinary teams and manage group dynamics.Communicate information, findings and recommendations orally and visually.