Flood source
Guidance on the code of practice for property flood resilience, published by CIRIA in 2021, defines a flood source as: ‘Where floodwater is coming from. This may be one or a combination of the following types of flooding:
- Flood from rivers (fluvial flooding)
- Flooding from the sea (coastal flooding)
- Groundwater flooding
- Surface water flooding
- Sewer flooding.
- Infrastructure failure flooding (eg dam failure)
- Compound flooding’
[edit] Related articles on Designing Buildings
- BREEAM Flood risk management.
- Building flood resilience.
- Environment Agency.
- Flood risk.
- Flood.
- Floodwater.
- Groundwater.
- Property flood resilience.
- Pumps and dewatering equipment.
- River engineering.
- Sustainable urban drainage systems.
- Temporary flood defences.
- Water engineering.
- Water table.
- Workplace design – flood protection.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
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.
ECA's public affairs priorities
Member consultation opens to shape priorities for 2027 to 2030.
Dutyholder responsibilities from 1 July 2026.
Where performance meets practice
The Building Envelope Stage at UKCW Birmingham.
CIAT publishes briefing on planning reforms.
Leaders in Learning for Practice Network
Call for conservation leaders in learning to register interest in new network.
The importance of early engagement
Construction lessons from the Trillium HealthWorks Experience Centre.
Mayors are to be given planning call in powers
Mayors across England will be able to make the most important planning decisions.

















