Surface Water Drainage and Sustainable Drainage Systems (SuDS) - Policy Context

The aim of this policy is to reduce flood risk for new developments from surface water (pluvial) sources. This aim has taken account of and is consistent with the provisions of the SPPS. Surface water or pluvial flooding occurs as a result of high intensity rainfall which overwhelms natural or human constructed drainage systems, resulting in water flowing overland and ponding in depressions. It is a particular problem in urban areas which are often dominated by impermeable surfaces, including roads, pavements and patios, which restrict the infiltration of water into the ground and promote run-off. New development proposals can exacerbate the problems of pluvial flooding, by accelerating and increasing surface water run-off. The Council recognises the potential harmful impacts of surface water flooding and will seek to promote a more sustainable approach to drainage and flood risk management.