The city of Rawalpindi in Pakistan still relies on a network of open sewers to deal with its sewage. The lack of a proper sewerage services has degraded the living conditions in the city, especially for poor people living in low-lying areas. Residents face a number of environmental and health issues and are affected by the bad smell that the sewers produce. To assess the benefits of converting the open system into a closed sewer system, a new SANDEE study has estimated how the presence of open sewers affects housing rents in the city.