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Hi,
Sorry to say i found the data 2 years ago and laying my hands on the source now is not going to be easy.
The riverside development https://barkingriverside.london/
Visiting the site it is within feet from the Thames water level, and short distance from the Thames barrier and houses have no raise thresholds at the door step.
The site is partly occupied by Barking Reach Power Station so i would expect a history of accurate data collection.
I found the data in a collection of Thames barrier events, environment agency forecast flooding likelyhood maps.
one of the websites, which show low risk, an older map showed it would completely flood for 1 mile in a one hundred year event, which i will try to find.
https://check-long-term-flood-risk.service.gov.uk/map
Thames barrier closures history.
https://www.gov.uk/guidance/the-thames-barrier#thames-barrier-closures
London flood map shows areas that may be regularly underwater by 2030/ less than 9 years away.
https://www.independent.co.uk/climate-change/news/london-flood-map-risk-b1917001.html
The Nasa tool with site location.
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