Yes, flooding is a real risk in Hamble-le-Rice, and it comes more from the sky than from the estuary the village is built around. About one in twenty of the area sits in the highest river-and-sea flood zone. Nearly one in five postcodes carry a high surface-water flood risk. Add a climate allowance and the exposed share grows rather than shrinks. For a village wrapped around a river mouth, that is the risk you would predict, and it is the one buyers most often talk themselves out of.
Start with the water the village sits next to. On the river-and-sea measure, none of the area falls into the middle flood zone, and about one in twenty sits in the highest zone, the band reserved for the greatest chance of flooding from rivers or the sea. There is no record of past flooding logged against the place on this measure, which sounds reassuring until you remember that an absence of history is not a promise about the future, especially for somewhere this close to tidal water. The high-zone share is small, but it is not zero, and it clusters where you would expect: down by the water rather than up in the newer estate streets.
Rainfall is the bigger story. Roughly a quarter of postcodes carry at least a low surface-water flood risk, about one in five sit at medium, and nearly one in five reach the high category. Put together, more than half the village has some level of surface-water exposure, which is the flooding that happens when a downpour lands faster than the drains can shift it. This is the risk that does not show up on a sunny viewing day and does not care how far you are from the shoreline. The gutters and the gradient decide it, not the tide.
The forward look is worse than the present one. Fold in the standard climate allowance and the share of the area inside the top flood zone rises to close to one in ten, up from about one in twenty today. That is the same ground, reassessed for the rainfall and sea levels the models expect rather than the ones on record. Buying a house is a thirty-year decision, and the climate-adjusted figure is the one that matches the length of a mortgage.
For insurance, this all matters at the level of the individual address rather than the village as a whole. Cover is available, but a home in one of the flagged zones can attract a higher premium, tighter terms, or questions about past claims, while a home a few streets up on higher ground may see none of that. The sensible move is to pull a specific flood report and an actual insurance quote for the exact property before committing, because the difference between two houses a hundred metres apart can be the difference between a routine policy and a fight.
Flood risk is the weakest thing Hamble-le-Rice has to offer, and it earns a below-average mark honestly: mostly surface water, a real slice of the place in the top river-and-sea zone, and a climate outlook that points the wrong way. None of it rules the village out, but it is the one thing you check street by street rather than taking on trust.