My friend Geoff has been working on very detailed flood maps for Kent, based on sea level rises predicted by various climate change scenarios. It now seems that a google map has been produced covering various rises across the entire planet. Being a google map, you can drill down to a detailed level. I have no idea about the accuracy of the map, although it seems to work for Maidstone and Medway, areas that I know well.
When I spoke to Geoff last week, his concern for inland areas was less with flooding through sea level rises (although areas such as Leybourne and Yalding are not going to fare well), but with the impact of the changes in rainfall.