The Environment Agency’s 2008 National Flood Risk Assessment shows there are 2.4 million properties at risk of flooding from rivers and the sea in England. Our preliminary assessment of surface water flood risk also suggests that one million of these are also susceptible to surface water flooding with a further 2.8 million properties susceptible to surface water flooding alone. In all, around 5.2 million properties in England, or one in six properties, are at risk of flooding. The expected annua