Building Standards: Flooding and groundwater guidance

Page 1 of 6

Closes 3 Oct 2025

Questions

Related Information

To help you answer questions 1 to 10, please refer to the relevant sections of the consultation paper.

1. 3.3.0 Introduction - Do you have any comments on the amended introductory information setting out background to the issues to be addressed by standard 3.3?
2. 3.3.1 Flood risk assessment - Do you consider the proposed expansion of the guidance on flood risk assessment to be useful in better framing the action expected and where to access supporting information on undertaking the assessment?
3. 3.3.2 Groundwater - Do you have any comments on the revised guidance on assessing groundwater risks?
4. 3.3.3 Resilient construction in flood risk areas - a significant expansion on previous guidance on flood resilient construction is proposed. Do you have any views on the usefulness of this additional information, including example construction details?
5. 3.3.3 Resilient construction in flood risk areas - Are there additional construction details or other useful information which could also be included in clause 3.3.3?
6. General feedback - Having reviewed the proposed changes in the context of current guidance to standard 3.3, do you agree there is a need to update the guidance in Section 3.3 (Flooding and groundwater) of the Technical Handbooks?
7. General feedback - Does the revised guidance provide enough information to understand what is required to achieve compliance with Mandatory Standard 3.3, Flooding and groundwater?

“Standard 3.3 - Every building must be designed and constructed in such a way that there will not be a threat to the building or the health of the occupants as a result of flooding and the accumulation of groundwater.”

8. General feedback - Do you consider that the revised guidance will add to the potential cost of development?
9. Annex 3.B Building Standards Flood Guide - Do you agree that the introduction of the guidance in Annex 3.B offers further useful information to support informed practice in flood risk assessment and the application of property flood resilience principles?
10. Annex 3.B Building Standards Flood Guide - Are there any other issues that you consider this Annex could address to further improve knowledge and understanding on this topic?