BeforeIBuyHonest. Maybe too honest.
№ 04 / 09 · Flood risk

Is Probus at risk of flooding?

For anyone buying or renting in Probus.

Barely, and that is a rarer answer in Cornwall than it sounds. No part of the village sits in the river or sea flood zones. Nothing on record has flooded here. The sea is a couple of miles away and downhill. What risk exists is rain on a slope, which is a gutter problem rather than a catastrophe.

On river and sea flooding, the Environment Agency's zones put none of the area's postcodes in flood zone three and none in flood zone two. Those two zones are separate bands rather than nested ones, zone two being the extra medium-probability fringe sitting beyond zone three, so a zero in both means the modelled river and tidal water does not reach the village at all. That is the cleanest result the mapping can produce.

Surface water is where the residual risk lives, as it usually does inland. Roughly 3% of postcodes carry a high rating on the surface-water indicator, with about 3% at medium and around 17% at low. In a village built on a slope with roads that channel water, the places that flood are the dips, the yards below road level and the properties where a Victorian drain is doing a job designed for a smaller village.

Looking forward, the Environment Agency's climate-adjusted zone share is also zero, meaning the allowance for future sea level and river flow does not pull any of these postcodes into the mapped zones.

For insurance, this is about as straightforward as Cornwall gets. A property with no river or sea zone designation and no recorded flood history should not attract a flood loading, and cover should be available on ordinary terms. The exception is any individual house sitting in one of the surface-water dips, where an insurer may price the specific address rather than the village, so get an indicative quote on the actual property before you commit.

Pulling the measures together, on at least one flood indicator, which folds surface water in alongside rivers and sea, about 3% of postcodes rate high, around 3% medium and roughly 17% low. Those bands overlap with the zone figures above rather than adding to them. The high and medium shares here are entirely driven by surface water, because the river and sea component is empty.

On whether anything stands between the water and the house, the modelled extents record no postcodes in a high-risk extent at all, defended or undefended. There is no defence in the model because there is nothing here for a defence to hold back. Worth being clear about what that word means generally: where a model does record a defence, it means a structure is present in the data, not that the house behind it is safe.

Every postcode falls within a shoreline management plan area, with the modal policy set to hold the line over the next twenty years, moving to managed realignment over the fifty and hundred-year horizons. A policy is a stated intention about how a stretch of coast will be managed, not a guarantee of funding and not a defence that already exists. It matters less here than almost anywhere in Cornwall, given the nearest coast is about two and a half kilometres away at the closest point and roughly three kilometres from the typical postcode.

At the nearest tide gauge, Devonport, sea level rose at an average of about 2.35 millimetres a year over the record from 1962 to 2015. That is a measured historic rate over a long record, not a projection.

No historic flooding is recorded across the area. That is genuinely good news, and it is also the limit of what the record can tell you: an absence of recorded events is not the same as proof that water has never come through a door here.

Flooding is one of the quieter worries in Probus, with the only real exposure being surface water in a handful of low-lying spots rather than anything a river or the sea is likely to do.

Check it for your address. Flood risk can change from one street to the next, so look up the exact address on the government's long term flood risk service.

Sources: Environment Agency · Environment Agency tide gauges (via PSMSL)

Data to May 2026 · Figures checked 20 September 2026 (what this means)