Ladbroke Grove's flood risk falls out of the sky. No postcode here sits in a river or sea flood zone. Count heavy rainfall as well, and about a quarter of postcodes come out high risk on at least one measure. No past flood is on record. The water to worry about arrives in a downpour and looks for the lowest door it can find.
On the Environment Agency's river and sea flood zones, none of the area's postcodes falls in zone 3, the highest-probability band, and none falls in zone 2, the medium-probability fringe just beyond it. That measure covers rivers and the sea only. Here, that rules out most of what buyers picture when they hear the word flood.
Surface water is a different matter. When a heavy storm drops more rain than the drains and the ground can take, it runs along streets and settles in hollows, front areas and anything below pavement level. The Environment Agency's surface-water mapping covers that kind of flooding, and that mapping is where Ladbroke Grove's risk shows up.
The Environment Agency's climate-adjusted flood zone, its forward look at how the river and sea zones could widen as the climate changes, takes in none of the area's postcodes either. That allowance covers rivers and the sea only, so it adds nothing for rain.
Insurers price on the individual address, and they look at surface water as well as rivers. A home on a dry street should be routine to insure. One on a postcode with a high surface-water rating, especially a flat below street level, may get a higher premium or a longer list of questions. The useful check is to put the exact address into the Environment Agency's long-term flood risk service, read the surface-water result as well as the river result, and ask whether the flat is basement or lower ground.
Look at each postcode across all the flood measures together, rivers, sea and surface water, and about 25% of Ladbroke Grove's postcodes rate high risk on at least one of them, about 23% medium and about 39% low. A postcode only has to be high on one measure to count, and here that measure is nearly always the rain.
None of the area's postcodes lies inside the Environment Agency's modelled high-risk river or sea flood extents, either with defences in the model or without them. Elsewhere, "defended" only means a defence appears in the model and says nothing about whether a house stays dry. Ladbroke Grove never gets to that question. There is no wall to ask about, because there is no river for one to hold back.
The nearest tide gauge with a long record is at Portsmouth, where sea level rose by about 2 millimetres a year between 1962 and 2023. That figure is the rate measured at Portsmouth over those years. Ladbroke Grove is a long way from the sea.
No past flooding is recorded anywhere in the area. That counts for something, though it only means no flood was mapped, and a surface-water flood on one street can easily go unrecorded.
Ladbroke Grove is safe from rivers and the sea, but about a quarter of its postcodes rate high for flooding from rain, which makes flood risk one of its weaker points.