I analysed 30 years of UK house sales to test whether rising sea levels are already being priced into England’s coastal housing market.
Using HM Land Registry transaction data from 1995 to 2025 and the Environment Agency’s coastal flood risk dataset, I compared coastal and non-coastal areas to see whether flood exposure is beginning to show up in property valuations.
[OC] jupyter notebook, duckdb.
by wtf_that_guy
2 Comments
The data for properties in high/medium flood risk coastal areas isn’t surprising. I guess it’s slightly surprising that properties in high/medium flood risk in non-coastal areas don’t show a similar devaluation but is the degree of severity the same?
The data only looks significant for coastal high risk flood areas. Was there any rising sea levels that could be shown to be statistically significant. Coastal seems to be affected but England isn’t exactly Florida, so perhaps there are other significant factors like storm damage, lack of access, higher allocation of insurance costs.