Sustainable drainage systems | GOV.WALES

Statutory standards and guidance for the design and application process for sustainable drainage systems (SuDS).

Part of:

Planning policy and guidance: water, air, soundscape and light (Sub-topic)

First published:

24 March 2026

Last updated:

24 March 2026

In this collection

Guidance

Sustainable drainage systems (SuDS): guidance

24 March 2026 Guidance
Sustainable drainage application fees

24 March 2026 Detailed guide

Statutory standards

National standards for sustainable drainage systems (SuDS)

15 October 2018 Guidance
Sustainable drainage systems (SuDS): explanatory memorandum

1 October 2018 Impact assessment
Sustainable Drainage Systems (SuDS) Schedule 3 Post Implementation Review

13 July 2023 Report