Cricklewood floods from above, if it floods at all. Rivers and the sea barely reach it. Even so, about a quarter of its postcodes rate high on at least one flood measure, and roughly another quarter rate medium. No flood is on record here. The danger is what a heavy downpour does once the drains are full.
On the Environment Agency's river-and-sea flood maps, about 0.1% of Cricklewood's postcodes are in flood zone 2 and none are in zone 3. Zone 2 is the medium-probability band beyond zone 3, not a bigger area that includes it, so here both are close to empty. The Environment Agency's property-level count of river and sea risk lists 74 properties in four postcodes, 15 of them at low risk and none at high or medium.
Surface water is where the risk is. With rivers and the sea almost out of the picture, the high and medium ratings below come from the other measures, and the main one is rain that cannot drain away fast enough. A house can be a long way from any river and still sit on the wrong side of a blocked drain. The phrase "not in a flood zone" is true for almost every home here, and it answers a much narrower question than the one a buyer is really asking.
When the Environment Agency adds its climate allowance to the river-and-sea zones, the share of postcodes affected rises only to about 0.2%. On that measure, rivers stay a minor concern for the foreseeable future.
For insurance, river risk this low should barely register. Surface-water risk is a different matter, because insurers price the exact house, and a street in a dip can be quoted very differently from one on the slope above it. A free indicative quote for the exact address will show you how an insurer sees the house, and it costs you nothing to get one.
Counting a postcode if it rates high on any one of several measures, surface water included, about 26% of Cricklewood's postcodes rate high, 24% medium and 42% low. One bad measure is enough to put a postcode in a band, so these shares tell you how widespread the exposure is. They do not say every home in those postcodes will get wet.
On the Environment Agency's modelled flood extents, none of Cricklewood's postcodes are in a high-probability area, whether it has defences or not. That means the question of whether a defence protects your home hardly comes up here, because the model puts no high-probability river or sea water in front of any home to begin with. Surface water does not respect defences anyway.
The nearest tide gauge in the records is at Portsmouth, where sea level rose by about 2 millimetres a year between 1962 and 2023. For a place this far inland, that figure is mostly for completeness.
The Environment Agency's historic flood records show no flooding in the area. That is a fair point in its favour, but it only means no flood was recorded. A burst of summer rain on a street with blocked drains can do damage without ever making the official record.
Flood risk is a real weak spot for Cricklewood, and almost all of it comes from rain overwhelming the drains. Rivers and the sea are not the worry here.