Question to the Department for Environment, Food and Rural Affairs:

To ask His Majesty's Government what assessment they have made of the number of homes at risk of surface flooding, broken down by (1) those built, (2) those under construction, and (3) those with planning permission awaiting construction.

The Government has committed £2.65 billion over the next two years to maintain, repair and build flood defences to protect communities across the country.

The Environment Agency’s National Assessment of Flood and Coastal Erosion Risk was published in December 2024. The report estimates that 4.6 million properties are in areas at risk of surface water flooding. This report enables 8.4 million people in more than 3.1 million residential properties to access more detailed information on their local surface water flood risk.

The number of properties at risk relate to properties that are already built, not properties that are under construction or those awaiting construction. The Environment Agency does publish a list of initial objections made, on the basis of flood risk, to planning applications. This is available here: Environment Agency objections to planning applications based on flood risk and water quality - GOV.UK.