The 2017/18 Challenge was run in partnership with KDI, a partner organisation of Engineers Without Borders UK based in the informal settlement of Kibera, Nairobi in Kenya. Kibera is Kenya’s largest informal urban settlement and is located in Nairobi, the country’s capital city. Today it is a vibrant, bustling, densely packed neighbourhood delivering an important, affordable settlement niche within Nairobi. Its population is estimated at anywhere between 250,000 and 1 million people. Kibera has evolved as a neighbourhood not formally recognised by the authorities in Nairobi, as a result development of key infrastructure has been challenging and the people living in Kibera suffer from the impacts of poor water and sanitation provision, a lack of waste management, limited transport and digital infrastructure, and, unsafe energy provision. As part of the 2017/18 Challenge we asked students to come up with ideas to contribute to sustainable development in Kibera. Find out about the winning teams here.