Citywide Inclusive Sanitation (CWIS) is gaining traction as an integrated approach that can achieve multiple United Nations Sustainable Development Goals (SDGs). Abishek S. Narayan and Christoph Lüthi at the Department of Sanitation, Water and Solid Waste for Development (Sandec) at the Swiss Federal Institute of Aquatic Science and Technology (Eawag) in Zurich, Switzerland, explain the concept and its implementation through current projects.