Mostly no, with a stubborn minority of addresses that says otherwise. The river and sea maps put almost nothing here in a flood zone. The broader indicator, which counts water coming off the hills as well as water rising in channels, flags roughly one postcode in eight as high risk. Nothing is recorded as having flooded here. The threat is not an estuary breaking its banks, it is rain and gravity and where the two agree to go.
Start with the formal picture. On the Environment Agency's river-and-sea flood zone mapping, under 1% of the area's postcodes fall in flood zone 3, the higher-probability band, and under 1% again in flood zone 2. Those two are exclusive bands rather than nested ones, since zone 2 is the additional medium-probability fringe lying beyond zone 3, so a small zone 2 figure is not a contradiction. By the measure that planning officers and mortgage lenders reach for first, this is a low-risk area.
Surface water is the other half of the question and it behaves differently. The village sits in a gap cut through a long chalk ridge by two streams working at the rock from either side, which is where the name comes from, the Old English ceorfan meaning a cutting. Landscape like that moves water downhill quickly and concentrates it in the low ground at the bottom. The composite postcode indicator, which folds surface water in alongside rivers and sea, rates a far larger share of the area at high risk than the river-and-sea zones do, and that gap between the two measures is the shape of the local problem.
Looking forward, the Environment Agency's climate-adjusted zone extent covers about 3% of the area. That is a modest expansion rather than a redrawing, and it is the figure a buyer planning to hold a property for decades should be looking at rather than the current-day one.
For insurance, none of this determines a premium by itself. Insurers price the individual address, its ground level, its history and its construction, not the postcode average. An address in one of the flagged postcodes can still be perfectly insurable, and an address outside them can still get an awkward quote. Get an indicative quote in writing before instructing a solicitor rather than after, because a surprise at that stage is expensive and entirely avoidable.
On the postcode-level indicator, which counts an area as flagged if it rates on at least one measure including surface water, about 12% rate high, about 9% medium and about 20% low. These bands overlap with the flood zone figures above rather than adding to them, so nobody should be stacking the two together to build a scarier total.
Counts of homes land harder than shares of postcodes. Within the 25 postcodes that carry any river-and-sea risk at all, the Environment Agency's mapping counts 702 properties, of which 43 sit at high risk, 10 at medium and 55 at low. Of the high-risk properties, 15 are residential. Postcodes with no risk do not appear in that list at all, so the total is a subset of the area, not the whole of it.
Whether anything stands between water and building is the question most flood summaries skip. In the modelled high-risk extent, under 1% of postcodes sit behind a defence that exists in the model and under 1% sit with none. A further 2% or so sit in the low-risk undefended extent. Defended in this context means a defence is present in the model. It does not mean a property is safe, and it does not say who maintains the thing or for how long.
The coast is closer than the inland setting suggests. About 10% of postcodes lie within 500 metres of the shoreline, that being a threshold the mapping defines rather than a claim about any particular house, and the nearest postcode sits roughly 50 metres from the coast. The median distance across the area is around 2,200 metres.
Every postcode here falls within a shoreline management plan, and the modal policy across the 20, 50 and 100 year horizons is no active intervention. That means the stated intention is not to build or maintain coastal defences on that frontage, and to let the coastline move as it will. Where a plan says hold the line, that is an intention rather than a promise. Here the intention is the opposite, and anyone buying within sight of the water should read it as exactly what it says.
The nearest long-record tide gauge is at Portsmouth, with measurements running from 1962 to 2023. Over that record, sea level rose at about 2 millimetres a year. That is a measured historic rate, not a projection of what the next sixty years will do.
There is no recorded historic flooding in the area. That is genuinely reassuring and worth weighing, though an absence of records is not the same as proof that water has never come through a door here.
Middling is the fair word for flooding here. The rivers and the sea barely register, and the reason this does not score better is the surface-water flagging on a minority of postcodes and a shoreline nobody intends to defend.