Chronic sanitation problems are faced by rapidly growing towns and cities throughout the developing world. Good sanitation is a prerequisite for healthy cities, protecting people from a range of excreta-related diseases and water borne diseases, which are likely to be chronic in some areas. We use the term sanitation to cover excreta disposal, sullage, safe water for good health and storm water drainage and solid waste management and stress the need to be concerned with services rather than facilities alone. The ultimate aim of sanitation must be to lead to changes at the level of city as a whole rather than to create isolated pockets of good practice and also that a strategy must concern itself with the way in which a desired outcome is to be achieved as much as with the outcome itself. Sanitation is just one of the issues that vie for the attention of politicians and other decision-makers. The air is to convince them of the benefits of adopting a strategic approach to sanitation planning which takes into account both constraints and available resources and recognizes the importance of relevant information decision-making.