Not from rivers or the sea, but rainwater is a different matter. No postcode sits in the river-and-sea flood zones. Nearly a quarter still rate high on at least one flood measure. No past flooding is on record. In Capel, the risk comes down with the rain rather than over a riverbank.
On the Environment Agency's river-and-sea flood zones, 0% of Capel's postcodes fall in flood zone 3, the highest-probability band, and 0% fall in flood zone 2, the medium-probability fringe beyond it. The two zones are separate bands, and here both are empty. On the measure most mortgage lenders and planners look at first, Capel is clear.
Surface water is where the risk sits. The Environment Agency's river-and-sea zones do not cover rainfall that pools on roads and gardens, and since none of Capel's postcodes are in those zones, any higher rating has to come from the other indicators, surface water among them. The postcode figures below include that measure. For a buyer, this means looking at the lie of the land around the house, the drains and whether the garden slopes towards the back door, rather than at the distance to the nearest river.
The forward look is equally clean on rivers and sea. The Environment Agency's climate-adjusted flood zone, which allows for heavier rainfall and higher river flows in future, covers 0% of Capel's postcodes. That is as good a reading as the measure allows.
Insurers price from more than the flood zones, and surface-water ratings do reach into premiums and excesses. A house on a postcode with a high surface-water rating can cost more to insure than its zone status suggests, so get a quote on the specific address before committing to the purchase, not after the survey.
On the broader postcode measure, which counts a postcode against any flood indicator including surface water, about 23% of Capel's 40 postcodes rate high on at least one measure, 20% rate medium and 43% rate low. These bands overlap with the zone figures above and measure a wider set of risks, so the two sets of numbers should not be added together or read as contradicting each other. The zones answer the river question. This measure answers the rain question.
Counting homes rather than postcodes, the Environment Agency's rivers-and-sea property mapping lists only 1 of Capel's postcodes as carrying any risk, covering 32 properties. Of those, 3 are rated high risk and none medium or low, and none of the 3 high-risk properties are residential. Only postcodes with some risk appear in this mapping at all, which is why the total is small. The point for a house hunter is simple: on this measure, no homes in Capel carry a high river-or-sea rating.
On defences, the modelled flood extents put 0% of postcodes in a high-probability area, whether defended or undefended. Nothing needs to hold water back from Capel's houses because, on the model, rivers and sea do not reach them. That is a statement about exposure, not about defences doing their job.
The nearest tide gauge, at Portsmouth, recorded sea level rising at about 2 millimetres a year over its 1962 to 2023 record. That is a measured historic rate at a gauge a long way south, and for an inland Weald village it has more bearing on the coastline than on anything in Capel.
No historic flooding is recorded across Capel's postcodes. That is a reassuring result, but a missing record is not proof that no garden, lane or ground floor has ever taken water, particularly from surface runoff, which is the kind of flooding least likely to make it into a register.
Capel's flood risk is worse than its clean river maps suggest: the rivers leave it alone, but the surface-water ratings put a fair share of its postcodes in the higher bands, and that is the measure that matters here.