JBA 5m GB Flood Map provides flood extent and banded-depth information for river, coastal and surface water flood sources at various return periods (annual exceedance probabilities) in defended and undefended scenarios.

Flood extent and banded-depth information provides a visual representation of flood hazard and helps in various applications, including:

-Insurerance - to understand the likelihood of flood damage in specific areas
- Urban Planning - to identify areas where flood defences are required or where resilience measures should be implemented (e.g., raising buildings, improving drainage).
- Emergency Response Planning to identify potential evacuation routes and understand where resources might be needed most during a flood event.

Updated annually.