The new SuDS manual, first published by CIRIA in 2007, is the one-stop-shop for delivering well designed SuDS that offer multiple benefits in the UK, as well as managing flooding. It is guidance that has been significantly revised based on the latest SuDS research, industry practice and guidance.
The new SuDS manual is free to download from the CIRIA website, click on this link
SuDS Manual (CIRIA)