On paper, yes, and more than most buyers expect from a hill-and-terrace corner of south London. Nearly a third of its postcodes fall in the highest river-and-sea flood zone. About one in six is flagged high on at least one flood measure. Over half land in the zone once climate change is allowed for. There is no beach and no named river in sight, and the maps still have plenty to say.
On the Environment Agency's river-and-sea mapping, about 31% of Camberwell's postcodes are in Flood Zone 3, the high-probability band. A further 5% are in Flood Zone 2, the medium-probability fringe that lies beyond Zone 3, so the two figures are separate slices of the area and not one inside the other. Up to the mid-19th century Londoners came here for the mineral springs and their supposed healing powers. The water Camberwell is famous for used to be sold as a cure.
Surface water, the rain that has nowhere to go, has no separate figure for Camberwell in the Environment Agency material used here. It is folded into the postcode-level picture further down, alongside rivers and the sea.
Looking ahead, the Environment Agency's climate-adjusted flood zone takes in about 58% of Camberwell's postcodes. That is a modelled scenario of where the zones would reach under a future climate. It moves the line on the map, and the street stays where it is.
For insurance, a postcode in Zone 3 tends to mean more questions from insurers and, for some properties, a higher premium or a larger excess. How much depends on the exact building, its floors and its claims history, and none of that is visible from a zone map. An indicative buildings insurance quote on the exact address is the quickest way to find out how an insurer reads the risk, and it costs nothing to ask for.
The postcode-level picture counts a postcode as high, medium or low if it reaches that level on any one of several flood measures, surface water included. On that basis about 16% of Camberwell's postcodes rate high on at least one measure, 15% medium and 32% low. Because a single measure is enough to flag a postcode, this picture and the flood zones overlap and answer slightly different questions.
Whether anything stands between the water and the house is a separate question. Under 1% of Camberwell's postcodes sit inside the Environment Agency's modelled high-risk flood extent with no defence present, and the defended share is 0%. "Defended" here only means a defence appears in the model. Defences can be overtopped and they need maintaining, so the word describes the model, and it should never be read as a promise about a particular house.
The nearest tide gauge to Camberwell is at Portsmouth, where sea level rose at about 2 millimetres a year over the record from 1962 to 2023. That is a rate measured at that gauge over those years and nothing more. That the closest gauge is on the south coast tells you something about how far the sea is from Camberwell.
The Environment Agency has no recorded historic flooding in Camberwell. That is genuinely reassuring, though a blank record means nothing was logged, and that is a weaker claim than nothing ever happened.
Flood risk is the weak spot in Camberwell's case. A record free of past floods sits alongside maps that put a large share of the area in the high zones, and any buyer should take the maps seriously.