Mostly no, with one caveat worth reading. None of the village sits in the Environment Agency's mapped river or sea flood zones. There is no record of historic flooding here. The real exposure is surface water, where a minority of postcodes carry a raised risk after heavy rain. So the honest answer is low overall, with a surface-water asterisk rather than a river one.
Start with the rivers and the sea, because that is what most buyers picture when they ask the question. On the Environment Agency's flood maps, none of Alveston falls into the medium-likelihood zone, and none falls into the higher-likelihood zone either. Both come out at zero. For a village ten miles inland from Bristol, that is the expected result, and it is a clean one. There is no tidal threat reaching this far up, and no main river running through the postcodes to overtop them. On the two measures that dominate flood insurance and conveyancing searches, the village is clear.
The risk that does exist is surface water, the kind that arrives when a heavy downpour lands faster than drains and soil can carry it away. Here the picture is mixed rather than alarming. Around seven percent of postcodes carry a high surface-water risk, close to one in five carry a medium risk, and a little over a third sit in the low band. That leaves a majority of the village with negligible exposure, but it also means a meaningful minority of streets can see water pooling in the worst storms. This is a street-by-street matter, not a village-wide one, so the specific address is what counts.
Looking forward, the climate-adjusted mapping shifts the numbers only slightly. Once future rainfall and sea-level allowances are built in, roughly one percent of the village moves into a raised-risk zone. That is a small change rather than a step up, and it suggests the flood profile here is stable rather than deteriorating. The village is not one of the places where the climate allowance rewrites the risk map.
For insurance, the implication is straightforward for most and worth checking for some. With no river or sea flood zone touching the village, standard buildings cover should be available on normal terms for the large majority of homes, without the flood-specific loadings that hit properties in mapped river zones. The exception is the minority of addresses carrying a high surface-water rating, where an insurer may ask questions or price the risk in. The sensible move before committing to any specific property is to pull its individual flood report rather than rely on the village average, because the average hides the spread.
So is Alveston at risk of flooding? Low, and firmly so on the measures that matter most. No river zone, no coastal zone, no flood history, and only a slim climate-driven shift ahead. The one thing to check is surface water on your particular street, and once that is clear, this is an average-to-reassuring picture rather than a worrying one.