Surface Water Management Programme

sustainable drainage system in Muswell

We’re working in one of the most densely populated and built-up regions in the UK. This places a lot of pressure on drainage. Population growth, loss of permeable surfaces, and climate change are also pressuring drainage. Without action the risk of sewer flooding and pollution likelihood increases.

Historically we've focused on engineering solutions. However, we’re shifting towards using more nature based solutions. This includes the utilisation of sustainable drainage systems (SuDS). They work by replicating the drainage processes provided by the natural environment.

This approach can help to: 

  • Manage the quantity and/or rate of runoff of surface water. This will improve flooding resilience, as well as reducing the need for overflows
  • Improve the quality of surface water run-off which will reduce the risk of pollution
  • Increase the amenity of public spaces as well as wider community benefits
  • Help grow the local biodiversity and customers’ experience of their local environment

SuDS Delivery (2025 to 2030)

We've started a new five-year programme to deliver SuDS across our region. If you're interested in collaborating with us, please email us.

The programme will build on the learning from 2020 to 2025 as well as our DWMP.

Sustainable drainage system

Third party projects

  • Allocation of funding will be in four rounds, the last being January 2028
  • Second call for projects opened on Monday, 26 October 2026
  • Deadline for applications for the second round is Monday, 18 January 2027 at 10am
  • Total allocation amount for the first round is approximately £2.5 to 3 million
Apply for third party projects

Help with applications

The following information will help you with the application process:

We expect to complete the second call for projects and provide feedback to applicants by the end of April 2027. If you’re interested in working with us, but your project timescales don’t fit with this call for projects, please email us.

SuDS in schools

We will also support schools in applications to DfE SuDS in school funding.

Online events and Q&A

We are running a series of online events and Q&A sessions to support with your applications. We'll present the application process, scoring criteria, evaluation methodology and provide further information about how to maximise your chances of success. The sessions are:

  • Thursday 22 October at 1pm
  • Thursday 19 November 2026, TBC 
  • Thursday 10 December 2026, TBC

AMP7 SuDS programme (2020 to 2025)

What we achieved in our previous SuDS programme.