Yapton sits off the formal flood map. No river zone. No sea zone. No historic flood recorded on the parish. The surface-water map and the climate projection carry the actual questions, and both of those need reading at the address level rather than the village level.
Under the Environment Agency's flood-zone system, zero percent of Yapton falls inside Zone 2, the medium-probability river or sea zone, and zero percent inside Zone 3, the high-probability river or sea zone. No historic flood extent is recorded across the village either. In river and coastal terms Yapton is dry ground, and that is the strongest single fact in this section.
Surface-water flooding is the story instead. Across the village's postcodes, about 8% carry some high surface-water risk, about 11% sit in the medium band, and roughly a third sit in the low band. Even without a river or the sea reaching Yapton, some streets will hold water in a heavy rainfall event, particularly where drainage cannot cope with the volume. The distribution is postcode-specific, so a buyer looking at a particular house needs to read the surface-water map for that address, not for the village as a whole.
Looking forward, under the climate-change allowance the picture edges up. About one postcode in ten falls inside the climate-projected zone once future rainfall and sea-level assumptions are factored in. That is not this year's risk. It is what the maps expect over the design life of a mortgage. Buyers taking a twenty-five or thirty-year view should read that number as the direction of travel rather than the current reality, and price the risk into the offer accordingly.
Insurance follows the map. For addresses sitting outside the river and sea zones and outside the higher surface-water bands, standard home cover comes at ordinary rates. For addresses inside the high or medium surface-water bands, cover remains obtainable, but expect quotes to reflect the risk and expect insurers to ask for the specific address rather than the postcode. Flood Re, the reinsurance backstop that helps at-risk homes get affordable cover, applies only to properties built before 2009. Newer stock does not qualify. Anyone buying a post-2009 property inside a flood band should confirm they can get and afford cover before exchange, not after.
The verdict is three out of five, which is average and honest. Yapton is dry ground on the formal flood map, but the surface-water and climate-projection maps put a slice of the village at real risk that varies street by street. The village on average is not at flood risk. The specific address can be. Read the maps for the postcode before you commit.