Mostly no, and the part worth worrying about is not the sea. Only a thin slice of the village sits in the river-and-sea flood zones. A wider slice picks up a high rating once rainwater is counted. Three floods are on the record here. In a valley with a river running through it, the useful question was never whether water arrives, but whether it arrives at your door or two lanes over.
The Environment Agency's mapping puts about 3% of the area's postcodes inside flood zone 3, the highest-probability band for rivers and the sea, and about 2% inside flood zone 2, which is the additional medium-probability fringe lying beyond zone 3 rather than a bigger ring drawn around it. About 3% of postcodes carry a recorded flood history. Three events appear in that record, the most recent in December 2012, logged as overtopping of defences on a main river. The River Yealm is why these numbers exist at all, and why none of them are zero.
None of that covers surface water. Zone mapping answers a question about rivers and the sea, so it stays silent on what happens when heavy rain arrives faster than a valley floor and a set of drains can move it. That is the mechanism which catches people out, because it ignores the line drawn around a watercourse and it does not appear on the map most buyers look at first.
Looking forward, the climate-adjusted extent covers about 6% of postcodes. That is the same river-and-sea modelling rerun with the rainfall and sea level allowances that current planning guidance requires, and it is wider than today's zone 3 footprint.
For insurance, a footprint this small usually means the postcode is not the problem and the individual address is. Cover gets priced house by house, so one property inside the modelled extent can be quoted on entirely different terms from a neighbour on the same lane sitting a metre or two higher. An indicative quote before instructing a solicitor is worth more than a reassuring conversation after.
Across the broader postcode indicators, which fold surface water in alongside rivers and the sea, about 13% of postcodes rate high on at least one measure, about 10% medium and about 24% low. Those bands overlap with the zone figures rather than stacking on top of them. The phrase to hold onto is at least one measure: a postcode can reach the high band on rainwater alone without going near the river.
Counted as homes rather than postcodes, the rivers-and-sea mapping covers 144 properties across the 8 postcodes that carry any risk at all, and postcodes with no risk never appear on that list. Of those properties, 3 are high risk, 8 medium and 18 low. Two of the high-risk ones are residential. Three homes is a comfortably small number until one of them is the one you have offered on.
On the modelled extents, about 3% of postcodes sit in the high-probability extent with no defence present in the model, against about 2% where a defence is present. That second figure is not comfort. Defended means a structure exists in the model, not that it is tall enough, maintained, or built for the storm that eventually turns up, and the one recorded event here is on the books as defences being overtopped.
Every postcode falls within a shoreline management plan area, with the coast about 760 metres away at the nearest point and roughly 1.4 kilometres from a typical postcode. The stated policy across the twenty, fifty and hundred year horizons is no active intervention. A policy is an intention about maintaining coastal works, not a defence that already stands and not a guarantee to anybody who buys on the strength of it.
The nearest tide gauge, at Devonport, measured sea level rising about 2.3 millimetres a year across its record from 1962 to 2015. That is a historic rate over that period rather than a projection, and it is the backdrop the coastal figures sit against.
Flood risk here lands in the middle of the range: not a village with a water problem, not one entitled to wave the question away. The lane and the exact address settle it, so check the specific house on the Environment Agency's long-term risk tool rather than trusting anything drawn at postcode scale.