Yes, and for a real minority of homes the risk is serious. About one postcode in eight sits in the highest river-and-sea flood zone. One in five rates high on at least one flood measure. The last recorded flood came from the sea, over the top of the defences. Most of Minster stays dry; the part that doesn't is the part that faces the water.
On the Environment Agency's river-and-sea flood zones, about 13% of Minster's postcodes fall in Flood Zone 3, the high-probability zone, and a further 2% in Flood Zone 2, the medium-probability fringe beyond it. Those are separate bands, so the smaller Zone 2 figure is extra ground, not a subset. The Environment Agency holds 45 recorded flood events for the area, and the most recent on record dates from February 1953, when the sea overtopped the defences.
A separate surface-water share isn't published for Minster on its own. Surface water is folded into the postcode indicators further down. Every postcode in the town sits within the Lower Medway Internal Drainage Board area, which tells you this is low, managed land where drainage is somebody's full-time job.
Looking ahead, the Environment Agency's climate-adjusted flood zone takes in about 18% of postcodes, against about 13% in Flood Zone 3 today. That forward look is a modelled allowance for a changing climate, not a forecast of any particular year.
For buyers, the practical consequence arrives through insurance. A home inside the flood zones, or close to the sea edge, is likely to face more questions from insurers, higher premiums or tighter terms than an identical home further inland. The time to find that out is before an offer, with the exact address, not after exchange.
At postcode level, taking every flood indicator together including surface water, about 20% of Minster's postcodes rate high on at least one measure, about 21% medium, and about 46% low. These bands overlap with the flood-zone shares above because they count any measure, so the two sets of figures should never be added together.
Counting homes rather than postcodes gives a clearer sense of scale. The Environment Agency's rivers-and-sea mapping lists 1,737 properties in the postcodes carrying some risk: 41 at high risk, 37 at medium, 191 at low and 864 at very low. Of the 41 at high risk, 37 are homes. Postcodes with no rivers-and-sea risk don't appear in that list at all, so those counts describe the exposed part of the town, not the whole of it.
Whether anything stands between the water and the house changes the modelled picture sharply. Ignoring defences, about 13% of postcodes fall inside the high-probability flood extent. With defences present in the model, that drops to about 1%. That second figure means a defence exists in the model. It doesn't mean the homes behind it are safe, and the 1953 record shows what happens when a defence is overtopped.
The coast is close for some and a walk away for most. About 18% of postcodes lie within 500 metres of the coast, the nearest just 54 metres from it, while the median postcode sits about 1.2 kilometres back. The 500-metre line is a threshold in the data, not a verdict on any single house.
The shoreline management plan for this stretch sets a policy of holding the line at 20, 50 and 100 years, meaning the stated intention is to maintain defences where they are. A policy is a plan, not a funded wall, and it guarantees nothing about future spending.
Sea level at Dover, the nearest tide gauge, rose at about 2.2 millimetres a year across its record from 1961 to 2010. That is a measured historic rate, not a prediction of what comes next.
Flood risk is Minster's weak spot, concentrated rather than universal, and serious enough that every buyer should check the individual address before anything else.