The RSPB and WWT have produced a handbook on Sustainable Drainage. This guide is aimed at local authorities and developers and sets out ways in which SuDS can be designed and managed to maximise biodiversity benefits.

Existing urban drainage systems have been put under severe strain in recent years and months, due to exceptional flooding events across the UK. SuDS (Sustainable Drainage Systems) provide an alternative to the ‘usual’ systems, and also the ideal opportunity to bring urban wetlands and other wildlife-friendly green spaces into our towns and cities and link these with existing habitats creating blue and green corridors.

Well-designed SuDS can also be used to adapt and mitigate the effects of climate change and provide an amenity and education resource for the community, providing high-quality public green space in which to relax, play and enjoy wildlife.

This guidance is aimed at local authorities, (and eventual SuDS Approving Bodies (SABs)), landscape architects, developers, engineers, masterplanners and anyone wishing to deliver benefits for people and wildlife through SuDS. It describes how to maximise the biodiversity potential of SuDS and identifies a set of design criteria and the design features required to deliver these benefits as well as their long-term management.

 You can view the SuDS Handbook online.