Yes, and the risk comes from rain. No river or sea flood zone touches the place. About two in five postcodes are still flagged high on at least one flood measure. Another third or so are flagged medium. The risk lands on streets with no river nearby, which is why buyers miss it.
None of Chadwell Heath's postcodes falls in the Environment Agency's river-and-sea flood zone 3, the higher-probability band, and none falls in zone 2, the medium-probability band that runs beyond it. The agency's property-level count of river and sea risk lists only two postcodes here, covering 62 properties. One property is rated medium, one low, and none high. On rivers and the sea, Chadwell Heath is about as clear as a place gets.
Surface water is a different matter. With the river-and-sea maps nearly empty, the flags across this place come from the other measures, surface water chief among them: rain that falls faster than the ground and drains can take it. A street can be well away from any watercourse and still collect water after a heavy downpour. "Outside the flood zone" is true of every home here and answers only the river question. Look the exact address up on the Environment Agency's surface-water map, because the risk changes from one road to the next.
The Environment Agency's climate-adjusted flood zone, which looks ahead to how river and sea flooding could spread, takes in none of Chadwell Heath's postcodes either. That forward look covers rivers and sea only. It says nothing about what heavier rainfall could do on the surface.
For insurance, the clean river-and-sea picture helps, but insurers look at surface water too, and a house on a high-flagged street can be quoted on that basis. Get a quote on the specific property early. It is the quickest way to find out how an insurer reads the street.
Across the area's postcodes, counting a postcode if any one of several flood measures flags it, about 40% rate high, 38% medium and 55% low. A single postcode can carry more than one rating, so the shares overlap and add up to more than the whole. Even so, a high flag on two postcodes in every five is a lot for a place with no river risk to speak of.
The Environment Agency's modelled flood extents put none of Chadwell Heath's postcodes inside a high-risk area, with or without defences. So the question of whether a wall or embankment stands between the water and the house barely comes up here. Rivers and the sea are the problem those defences are built for, and they are not the problem here.
There is no recorded history of flooding anywhere in Chadwell Heath's postcodes. That is reassuring as far as it goes. The records are better at capturing rivers that burst their banks than a road under water for an afternoon.
Flood risk is a real weakness for Chadwell Heath. The rivers and the sea leave it alone, and the rain does not.