Mostly no, and the part that says yes has nothing to do with the sea. Almost none of the place sits in a river or sea flood zone. Nearly a fifth of postcodes carry a high rating once rain and drainage are counted. Nothing has flooded here on record. This is not a coastal problem, it is a downhill one.
Just under 1 percent of the area's postcodes fall inside the Environment Agency's flood zone 3, the highest-probability band for flooding from rivers and the sea. Zone 2, which is the additional medium-probability fringe lying beyond zone 3 rather than wrapped around it, covers none of them. That is consistent with the geography: the nearest coast is about three and a half kilometres away, with a median of roughly four kilometres across the area's postcodes, and no postcode sits within half a kilometre of the shore.
Surface water is the mechanism that matters here. The flood zones describe rivers and the sea and nothing else, so they miss the rain that arrives faster than drains can take it. Carn Brea rises above the area, and water coming off high ground has to go somewhere, which in a built-up former mining district means roads, yards and the low points between them. This is the risk that shows up in the broader postcode indicators rather than the zone mapping.
Adding the climate allowance does not widen the footprint. The climate-adjusted zone share stays at just under 1 percent of postcodes, which makes it one of the few forward-looking figures in this section that sits still.
For insurance, most of Pool should be unremarkable to underwrite. A high surface-water rating is the thing that makes an insurer ask a second question, adjust an excess or want a survey, and it is address-specific rather than area-wide. Anyone serious about a particular house should get an indicative quote on that exact address before instructing a solicitor, not after the survey comes back.
On the postcode indicators, which fold surface water in alongside rivers and the sea, about 18 percent of postcodes rate high on at least one measure, 14 percent rate medium and 38 percent rate low. Those bands overlap with the zone figures above rather than adding to them, and they describe postcodes rather than individual homes.
The count of homes is the more useful figure. Within the postcodes that carry any rivers-and-sea risk at all, and only those appear in this mapping, the Environment Agency records 126 properties in total, of which 40 are at high risk, with 36 of those residential, alongside 2 at medium risk and 2 at low. Forty homes is a street, not a town, which is the honest scale of the river-and-sea exposure here.
On whether anything stands between water and house, the high-risk modelled extent covers just under 1 percent of postcodes both with and without defences taken into account. Where the risk exists, a defence is present in the model. That records the existence of a structure, nothing more. It is not a statement that those homes are safe, and it should not be read as one.
Every postcode here falls under a shoreline management plan, which for an inland place is about the coast it ultimately drains towards. The stated policy is to hold the line over the next twenty years, moving to hold the line or managed realignment at the fifty and hundred year horizons. A policy is an intention to maintain defences over that period. It is not a guarantee, and it is not evidence that a defence already exists.
The nearest tide gauge is at Devonport, where records from 1962 to 2015 show a measured rise of about 2.35 millimetres a year. That is what was recorded over that period rather than a projection of what comes next.
No historic flooding is recorded in this area at all, which is genuine reassurance and the best evidence available. It is not proof that nothing ever happened, because records begin when someone starts keeping them, but an empty historic flood map is a better thing to inherit than a busy one.
Flood risk is the weaker end of what Pool has to show a buyer, and the reason is drainage rather than rivers: the zone mapping is close to clean while the surface-water ratings are not, so the address matters far more here than the town does.