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Last edited 17 Feb 2021
Design flood event
For the purposes of the Home Quality Mark, a design flood event is a historic or notional flood event of a given annual probability, against which the suitability of a proposed development is assessed and mitigation measures, if any, are designed.
The design flood level is the maximum estimated water level during the design storm event including an allowance for climate change in line with current best practice national planning guidance. The design flood level for a site can be determined through either known historical data or modelled for the specific site.
See also: Flood event.
 Related articles on Designing Buildings Wiki
- BREEAM Flood risk management.
- BREEAM Surface water run-off.
- BRE articles.
- Changing attitudes to property flood resilience in the UK
- Home Quality Mark.
- Building Research Establishment.
- Flood and Water Management Act.
- Flood event.
- Flood plain
- Flood risk
- Flood risk assessment.
- Flood risk management plan
- Flood zone
- Flood defences
- Planning for floods.
- Property flood resilience
- Surface water
- Sustainable urban drainage systems.
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