This report is based on the themes and messages discussed during the Business Opportunities in Housing for the Base of the Pyramid event held in São Paulo, Brazil on 2 September 2013. The event brought together between key actors developing housing solutions for low-income communities in Brazil. More than 70 members from the United Nations Development Programme in Brazil, city government, civil society, real estate developers, private-sector companies and investors attended this invite-only event, a collaborative effort between Business Call to Action (Bcta) and Aspen Network of Development Entrepreneurs (ANDE) Brazil Chapter which enabled participating stakeholders to discuss challenges and solutions. Home plays a critical role in the social and economic life of a family unit. Living conditions affect all aspects of human development, from health and education to social advancement. For low-income families, the home often serves as the basis for income-generating activities. Conditions in inadequate housing such as overcrowding, indoor air pollution, poor wastewater treatment and lack of sewage and sanitation facilities increase the chances of contracting acute respiratory illnesses, which in turn hampers income and social mobility.1 Quality housing can be a source of income if used for hosting home-based entrepreneurial activities that boost earning potential and financial stability. UN-HABITAT estimates that close to 1 billion individuals around the world live in slums and other inadequate housing, with projections expected to triple by 2050 if the problem remains unaddressed. Considering the enormous need and substantial size of the low-income housing market, which is worth more than $300 billion globally, very few market-based approaches exist to address the gaps in the housing solutions for the poor.3 The global trend of rapid urbanization, with millions migrating from rural areas in pursuit of a better life, has created immense challenges for cities in emerging economies that are unable to deal with the influx.