Flood risk assessment
[edit] Introduction
A flood risk assessment is required for most developments within one of the flood zones.
This includes developments that are:
- In flood zone 2 or 3 including minor development and change of use.
- More than 1 hectare (ha) in flood zone 1.
- Less than 1 ha in flood zone 1, including a change of use in development type to a more vulnerable class (for example from commercial to residential), where they could be affected by sources of flooding other than rivers and the sea (for example surface water drains, reservoirs).
- In an area within flood zone 1 which has critical drainage problems as notified by the Environment Agency.
It is not necessary to carry out a flood risk assessment for a development that is less than 1 ha in flood zone 1 unless it could be affected by sources of flooding other than rivers and the sea, for example surface water drains.
You can find out more at: https://www.gov.uk/guidance/flood-risk-assessment-for-planning-applications
[edit] Home Quality Mark
For the purposes of the Home Quality Mark, a Flood Risk Assessment (FRA) or Flood Consequence Assessment (FCA) is defined as:
|
A study to assess the risk of a site flooding, and to assess the impact that any changes or development on the site will have on flood risk to the site and elsewhere. A FRA should be prepared according to relevant planning policy and technical guidance documents. The FRA must account for future climate change and detail any necessary adaptation measures where or if required. Where more than five years have passed since the FRA was carried out, evidence would be required to demonstrate that the basis of the FRA has not changed in that time. |
Ref Home Quality Mark One, Technical Manual SD239, England, Scotland & Wales, published by BRE in 2018.
[edit] Related articles on Designing Buildings
- BREEAM Flood risk management.
- Building Research Establishment.
- Changing attitudes to property flood resilience in the UK
- Design flood event.
- Design flood level.
- Flood.
- Flood Risk Framework.
- Home Quality Mark.
- Flood and Water Management Act.
- Flood plain
- Flood risk
- Flood risk management plan
- Flood zone
- Flood defences
- Planning for floods.
- Property flood resilience
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Industrial heritage in the Ruhr
A marked difference to the fate of industrial landscapes in the UK.
Communities will be able to build their own clean energy.
Why diversity and inclusion matters for SMEs
CIOB’s D&I Charter shows how practical changes can support long-term growth.
Cut electricity bills to power growth
Coalition sends joint letter to the Chancellor.
Gasholders: a history in pictures. Book review.
Recognition, influence and growth
SocEnv identifies three strategic pillars in new strategy to 2045.
Discover the future of roofing, cladding and insulation.
New guidance for professional practice, cultural change and regulation in social housing.
The heritage of nuclear and conventional power stations.
New measures to stop people being ripped off
Government to protect families from cowboy builders and aggressive bailiffs.
New Futurebuild showcase brings an innovation-first approach.
National Planning Policy Framework
Understanding the 2026 changes.