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How do I apply for SAB?

Pre Application Service

We offer a pre-application service to discuss in detail your site's drainage requirements and what needs to be submitted with your application.

This will ensure suitability of proposed SuDs design in line with national standards and adequate site layout.

This service will be valuable to developers to help limit delays and reduce costs in the long term.

This service is separate from the planning pre-application service.

Full application service

Full SAB application must be submitted for validation and must be accompanied by the following as a minimum: 

  • A plan specifying the construction area and the extent of the drainage system
  • Information on how the construction work will comply with the SuDS Standards
  • Information requested in the application form checklist
  • A statement on whether or not the application relates to a development that is the subject of an Environmental Impact Assessment application
  • The appropriate application fee.

You can apply on​line for the Sustainable Drainage Approval Body (SAB) Application process. You will need to register first and then select the link for ‘Full Application - (SAB)” from the dropdown list.


As the SAB, the council will have 7 weeks to determine an application; however, if the application is subject to an Environmental Impact Assessment it will have 12 weeks for SAB determination. 

How much will it cost?

The fee for a full application is set by Welsh Government and is dependent on the size of the construction area, as detailed below. The construction area means the area of land identified on a plan accompanying a planning application, or if an application for planning permission has not been made, the area of land subject to construction work. 

  • £350 for each application, and,
  • an additional amount up to a maximum of £7,500 calculated by reference to the size of the construction area as follows:
    • ​​​£70 for each 0.1 hectare or fraction of 0.1 of a hectare, for the first 0.5 hectare;

    • £50 for each 0.1 hectare or fraction of 0.1 of a hectare, from 0.5 hectare up to and including 1.0 hectare;
    • £20 for each 0.1 hectare or fraction of 0.1 of a hectare, from 1.0 hectare up to and including 5.0 hectares;
    • £10 for each additional 0.1 hectare or fraction of 0.1 of a hectare in excess of 5.0 hectares.

If the applicant is a community council, the fee charged will be halved. 

Please note that there will be additional fees for the inspection of the works and funds associated with adoption and maintenance of approved drainage systems. 

What happens next?

We will need to assess your application to ensure all the required details are complete. When your request is approved and the SAB process is completed you will receive email confirmation with the relevant approval documents and cover letter. You can log in to view the status of your SAB request​Link opens in a new window at any stage.