What is a 1-in-100 year flood risk?

In this section

1
What is the county council's role in flood risk management?
2
My house has been flooded and I can’t find affordable insurance, is there anything I can do?
3
A local watercourse has become blocked who do I call to remove the blockage
4
How can I check if flooding has occurred at my property in the past?

5
What does GCC provide for flood prevention?
6
Do we build on flood plains?
7
What is a 1-in-100 year flood risk?

A 1-in-100 year flood risk

The phrase can be confusing. Many mistakenly believe that it is a flood that occurs every 100 years. However, the phrase really means a flood that has a 1% chance of occurring in any year. The July 2007 floods were in this category.

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Last reviewed: 22/08/2023

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