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Copies of Regulations made under the Floods and Water Management Act 2010.

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First published:
15 February 2022
Last updated:


11 February 2022


Request for Information – ATISN 16035

Sustainable Urban Drainage System

Thank you for your request for information dated 30 January 2022.  You have asked for the following information in relation to Sustainable Urban Drainage System:

  • Copies of Regulations made by the Welsh Ministers under Paragraph 18 [3] of Schedule 3 Floods and Water Management Act 2010.

Our response

There is a relevant provision under the Sustainable Drainage (Approval and Adoption Procedure) (Wales) Regulations 2018, specifically Regulation - 9 Single property exception - which stipulates:

For the purposes of paragraph 18(1) or (2) of Schedule 3 a drainage system or any part of a drainage system is to be treated as designed only to provide drainage for a single property if it is designed to provide drainage for any buildings or other structures that, following completion of the construction work, will be owned, managed or controlled by—

          (a) a single person, or
          (b) two or more persons together.

You can access the Sustainable Drainage (Approval and Adoption Procedure) (Wales) Regulations 2018 on the website at

Next steps

If you are dissatisfied with the Welsh Government’s handling of your request, you can ask for an internal review within 40 working days of the date of this response.  Requests for an internal review should be addressed to the Welsh Government’s 

Freedom of Information Officer at: Information Rights Unit, Welsh Government, Cathays Park, Cardiff, CF10 3NQ or Email:

Please remember to quote the ATISN reference number above.    

You also have the right to complain to the Information Commissioner.  The Information Commissioner can be contacted at:  

Information Commissioner’s Office, 
Wycliffe House, 
Water Lane, 
SK9 5AF 

However, please note that the Commissioner will not normally investigate a complaint until it has been through our own internal review process.

Yours sincerely