Yes, and it is the least comfortable thing about the town. Roughly one postcode in five sits in the highest river-and-sea flood zone. Four in five sit within half a kilometre of tidal water. The town grew up at the point where a tidal river stopped being navigable, which is a lovely thing for a bridge and a complicated thing for a mortgage. This is not a place where flood risk is a footnote.
The Environment Agency's river-and-sea mapping puts 19% of the area's postcodes in flood zone 3, the highest-probability band, and under 1% in flood zone 2. Those two are separate bands rather than one inside the other, with zone 2 being the additional medium-probability fringe sitting beyond zone 3, so the small zone 2 figure is not a contradiction. What it means in practice is that the mapped risk here is concentrated rather than gently graded. Streets are either in it or well clear of it.
Those zones cover rivers and the sea only. They say nothing about rainfall arriving faster than the drains can take it, which is the risk that catches out houses sitting comfortably outside any river zone. The combined postcode indicator further down folds that in.
Looking forward rather than back, the Environment Agency's climate-adjusted mapping raises the share of postcodes in the flood zone to 26%. That is the same town with a warmer century applied to it, and it is the figure a buyer planning to be here in thirty years should be reading rather than the current one.
The insurance consequence is real and worth handling early. An address inside a mapped high-risk zone changes what insurers will quote, what excess they attach and how much paperwork sits between an offer and a completion. Get an indicative buildings insurance quote for the specific address before instructing a solicitor, not after. The difference between two houses on the same street can be substantial, and nobody discovers this at a convenient moment.
Taking every flood indicator together, including surface water alongside rivers and the sea, 16% of postcodes carry a high rating on at least one measure, 17% carry a medium rating and 41% carry a low one. Those bands overlap with the zone figures rather than adding to them, so this is a second lens on the same town, not extra risk stacked on top.
Counted as homes rather than shares, the Environment Agency's rivers-and-sea mapping covers 1,026 properties across the 55 postcodes that carry any risk at all. Of those, 22 sit at high risk, 19 at medium, 409 at low and 163 at very low. Ten of the high-risk properties are residential. Postcodes with no risk do not appear in that count at all, so this is a picture of the exposed part of the town rather than the whole of it.
On whether anything stands between the water and the house, 19% of postcodes sit inside modelled high-risk extents with no defence present in the model, against 16% where a defence is present. That second figure is not reassurance. A defence existing in a model means a structure has been accounted for, not that a given property is protected, and defences have design limits that the water does not consult.
The coast is close by any measure. Around 80% of postcodes sit within 500 metres of tidal water, which is the threshold the coastal data uses rather than a claim about any single address, with a median distance of about 220 metres and a closest recorded distance of 7 metres.
Every postcode here falls under a shoreline management plan, and the stated policy at the twenty, fifty and hundred year horizons is to hold the line. That is an intention to maintain defences over those periods. It is not a guarantee of funding, and it is not a defence that already exists.
For sea level itself, the nearest long-record tide gauge is at Devonport, where measurements between 1962 and 2015 show a rise of about 2.4 millimetres a year. That is a measured historic rate over that record rather than a projection of what comes next.
One genuine piece of good news: the historic flood extent mapping records no past flooding across the area. That is worth having, though it is a record of what has been mapped rather than proof of what has never happened. The town's own history includes a flood on Saint Swithin's day in 1965, when heavy rain arrived at high tide and reached the town centre, which is a useful reminder that a dataset going quiet is not the same as a river behaving.
Flooding is where Wadebridge gives back what its setting earns it, and the risk is high enough that it should shape the search rather than sit at the end of it. The town is not the unit that matters here. The address is, and two houses a few streets apart can sit on opposite sides of the mapping with only one of them getting a straightforward insurance renewal.