Yes. Mayland carries real flood risk, and the estuary is only part of it. About half its postcodes rate high on at least one flood measure. About one in nine is in the highest river-and-sea flood zone. Allow for climate change and that rises to more than a third. Maylandsea faces the water, and on the flood maps the water faces back.
In the Environment Agency's river-and-sea flood zones, about 11% of Mayland's postcodes are in Zone 3, the highest-probability band, and about 4% are in Zone 2. The two zones don't overlap. Zone 2 is the medium-probability fringe outside Zone 3, which is why it can be the smaller figure.
There is no separate surface-water share for Mayland in the Environment Agency's figures here. Rainwater that has nowhere to go is counted instead in the postcode indicators further down, alongside rivers and sea. A house well back from the creek can still have its own water problem.
Looking ahead, the Environment Agency's climate-adjusted flood zone takes in about 36% of Mayland's postcodes. That is the modelled reach of the water once future sea levels and heavier rain are allowed for, and it's the figure a buyer planning to stay twenty years should weigh most.
Insurance follows the maps. A home in or near those zones can cost more to insure, and some policies come with higher excesses or exclusions for flood. Get a quote for the exact address early, before the survey, and have the insurer confirm that the flood cover is included.
On the postcode indicators, which count a postcode if it rates at a given level on any one of several flood measures, surface water included, about 53% of Mayland's postcodes are high on at least one, about 40% are medium on at least one and about 73% are at least low on one. A single postcode can appear at more than one level, and these shares measure something different from the flood zones above.
Counted as homes, the Environment Agency's rivers-and-sea mapping lists 737 properties across the Mayland postcodes that carry any risk at all. Of those, 27 are at high risk, 33 medium, 162 low and 19 very low, and 15 of the high-risk properties are homes. Postcodes with no rivers-and-sea risk don't appear in that list at all.
The more useful question is whether anything stands between the water and the house. About 11% of Mayland's postcodes are in the Environment Agency's high-risk extent with no defence in the model, and about 4% are in it with a defence present. "Defended" in that model means a wall or embankment exists. It says nothing about whether a particular house will stay dry. A defence changes the odds, and the house still sits below the water it holds back.
The coast is close. About 33% of Mayland's postcodes lie within 500 metres of it, the threshold the coastal data uses for the whole area. The nearest postcode is about 60 metres from the shore and the median postcode about 690 metres. The one recorded flood on the Environment Agency's file is the sea flood of February 1953, and about 2% of postcodes fall inside a historic flood outline. "Estuary views" and "estuary flood zone" describe the same creek, written up by two different people.
The shoreline management plan for this stretch of coast is to hold the line, meaning keep the existing defences where they are, over twenty, fifty and a hundred years. That is a statement of intent for each period. It depends on funding that has not been committed, and it describes what the plan wants to happen, not what is standing on the shore today.
Flood risk is Mayland's poorest point by a distance. Anyone buying here should choose the house with the maps open and the insurance quote already in hand.