Mostly not, but the sea is closer than the risk maps make it feel. Hardly any postcodes sit in the highest river-and-sea flood zone. About one in ten carry a high rating on at least one flood measure. Nearly half are within a short walk of the coast. The risk is small and the sea is right there, and a careful buyer keeps both of those in mind.
The Environment Agency's river-and-sea flood zones cover very little of Margate. Fewer than one postcode in a hundred falls in zone 3, the highest-probability band. About 1% sit in zone 2, the medium-probability fringe beyond it. These are separate bands, so the zone 2 figure doesn't include zone 3. Both measure flooding from rivers and the sea only.
Surface water, the rain that can't drain away fast enough, isn't published here as a separate share. It's folded into the postcode-level ratings below, so a clean result in the river-and-sea zones doesn't tell you anything about what happens in the street during a cloudburst. About 2% of postcodes fall inside a recorded historic flood outline, and 39 flood events are on record. The latest was in 1980, when the sea came over the defences.
Looking ahead, about 5% of postcodes fall inside the flood zone once the Environment Agency's allowance for climate change is added. That is still a small number, but it is bigger than today's, and it's the number to have in mind if you plan to own the house for twenty years.
For insurance, most Margate homes will be quoted like anywhere else, but a house on a postcode with a high rating on any measure can get a higher premium or tighter terms on flood cover. Get a quote for the exact address before you instruct a solicitor, not after exchange.
Counting every type of flooding, including surface water, about 10% of postcodes are rated high on at least one measure, 17% medium and 34% low. These bands overlap with each other and with the zone figures above, so they can't be added up or compared with them. They answer a wider question: is there any kind of flood risk here at all.
The Environment Agency's rivers-and-sea mapping counts actual properties, and that is the more useful figure. Across the 69 postcodes that carry some risk, it lists 1,564 properties: 45 at high risk, 383 at medium, 374 at low and 20 at very low. Only 10 of the high-risk properties are homes. Postcodes with no risk at all don't appear in the list.
Then there's the question of whether anything stands between the water and the house. In the modelled high-probability flood area, fewer than one postcode in a hundred has no defence in the model, and a similarly small share has one. "Defended" means a defence appears in the model. It doesn't mean the house will stay dry, and anyone selling it to you as a guarantee is selling something else.
About 46% of postcodes are within 500 metres of the coast, which is a distance cut-off used in the data, not a statement about any one house. The closest postcode is about 8 metres from the shore, and the typical one is about 550 metres away.
The official shoreline plan for this stretch is to hold the line at 20, 50 and 100 years. That is a stated intention to keep the defences where they are over each period. It isn't a promise of funding, and it isn't a wall that already exists.
The nearest tide gauge, at Dover, recorded sea level rising by about 2 millimetres a year between 1961 and 2010. That's a measured past rate, not a forecast.
Margate's flood risk is middling: small in the flood zones, spread thinly across the town, and concentrated along a coast that nearly half the postcodes are close to. Check the individual house, not the town average.