Focusing specifically on Nigeria, Ethiopia, and Cameroon, AHI mined existing data and engaged in fieldwork, with the objective of enhancing evidence-based knowledge of the housing sector and expanding the understanding of the relative importance of the supply/demand determinants for affordable housing in SSA. Our output consisted of three country case reports and one regional report. Our work addressed the knowledge gap and provided a foundation for policy decisions, both at the country level and at a broader regional level. We further investigated and built upon the World Bank's findings, which indicate that, although the African housing sector is highly heterogeneous and there are substantial differences in housing stocks, supply, and access to housing finance between countries, there are also overarching trends that create impediments to a fully functional housing sector.