The fact is, Canvey Island is a high Risk Zone 3A flood plain. Albeit the Island is protected by sea defences, we must all be aware that Canvey is; at or below sea level and that residents safety is reliant on none of the individual parts of sea defences failing during a Tidal Flood event.
The works currently underway to protect the Sea Defences, are mainly necessary due to the damage that Tidal movement can cause. That and the discovery that sea water is able to leach under the Sea Defences undermining the structure that actually is intended to keep us all safe. The Environment Agency works are not an improvement in protection to Residents!
Persimmon, for instance, have plans to create a large lucrative development which will take advantage of, and be reliant on, the existence and continued improvement of Canvey’s sea defences over the years of the lifetime of their development. Is it fair that they should contribute zero towards the Vital Sea Defence Infrastructure which will keep their future Housing and Residents safe? Local Plan’s should seek Funding, as Government indicate they cannot alone be expected to continue to underwrite such major schemes in future, perhaps even questioning the Sustainability of Canvey Island.
The 2014 Summer Floods exposed the “Broken Drainage System” and the issues that being such a Flat area causes, namely a total reliance on gravity. Until the drainage system starts to fill up, nothing will reach the pumps for them to commence pumping. Remember how CPBC revealed the need for a £24,500,000 scheme to improve Canvey’s “Broken Drainage System”?
Castle Point Council, since its formation, has been responsible for increasing the population on Canvey, at Risk of Flooding by in excess of 40%!
Of late we have been very fortunate in not having the Rainstorms that other parts of the UK have suffered from. With this in mind we must be aware that CPBC are currently working hard on a Local Plan. Our remaining open Green Spaces act as a water dispersion area giving some alleviation to residents safety and property protection.
Residents safety and well being must be the priority!
Developers and Planners believe it is the easy option, build in Flood prone areas, where those in Authority hear little opposition from the electorate, where Planners fail to insist Developers provide Flood Resilient measures, claiming viability doesn’t allow funds for such important and safer building design.
All the while seeking to increase the Population at Risk of Flooding, which could never be protected even at the current numbers of residents!
With this in mind, I came across a 2019 article by Professor of Risk Lee Bosher. I have been assured that much of the content remains relevant to Development Planning in Flood Risk areas.
Prof. Bosher wrote for “The Conversation;”
“Recent floods in England have been described as unprecedented or even “biblical” events, often with the misguided assumption that they were unavoidable or unpredictable. That is not the case. Over the past few decades, development practice in England has led to more than 300,000 homes being built in high flood risk areas. In this sense, the planning system has actually created (not reduced) flood risk.
The flooding in northern England was indeed extensive, with about 500 homes flooded and more than 1,000 properties evacuated in Doncaster, and major transport disruption across several counties. Subsequent media coverage did highlight the many ways that flooding can be stopped, but key articles tended to focus on typically capital-intensive solutions: flood walls, river embankments, demountable flood barriers or dredging (the benefits of which are highly debatable). The overarching message was that these events are unpredictable and unprecedented, and the only way to properly deal with them is to invest millions in large physical infrastructure.
While these are helpful suggestions, they only address part of the problem. There is another root cause of flooding that appears not to get so much airtime, namely the role of a fractured planning system that still enables developers to build homes in high flood risk areas.
How planning laws made risky building easy
Urban planning in England is highly regulated and has often been accused of constraining development or in some cases stymieing private sector investments. A 2006 government policy statement attempted to direct development away from areas at highest risk – in simple terms, the intention was to promote building appropriate things in appropriate locations.
However, in 2012, the then coalition government published a new National Planning Policy Framework for England, which replaced existing policy and meant there was no longer clear guidance to prevent building in flood plains. To complicate matters further, the Growth and Infrastructure Act in 2013 released large areas of greenfield land for development. The act effectively gave developers a right to submit major planning applications directly to central government and thus proposals and decisions could evade not only communities but also local planning authorities.
As a result of these legislative changes, there is now a better chance of vulnerable homes being built in flood-prone areas. So how has this policy landscape impacted the number of homes/apartments (typically referred to as “dwellings” in government data) being build in flood risk areas?
More than 300,000 new flood-prone homes
The number of New Dwellings built between 1989 and 2016 within areas of high flood risk (technically Flood Zone 3: “floodplains” with a one in 100-year return period and “coastal areas” with a one in 200-year return period), totals 301,000! The average proportion of new dwellings built in areas of high flood risk has fluctuated annually between 7% and 11% with some regions such as London, Yorkshire and Humber, and the East Midlands regularly surpassing these.
This adds up to more than 300,000 new homes being built since 1989 that are at risk of flooding. Despite a plethora of guidance for planners and apparent restrictions on developers, this building persists.
Over this period, the continued “free-market” development of flood plains in England has had an unexpected effect. Developers have increasingly been using flood plains to build social housing for low income families, homes for the elderly/disabled as well as schools and hospitals. One 2009 study identified 2,374 schools and 89 hospitals in flood prone areas of England. Planning policy has thus caused some of the most vulnerable members of society to occupy highly flood-prone areas.
Urban areas have been creating flood risk. And this is largely due to the government’s focus on making land – low cost, flood prone land – available for development.
Therefore, when considering “extreme” flood events and the highly expensive defence and protection solutions, we should not lose sight of how government policies have consistently created more risk – in England, at least. To see how different things could be, just compare England to Scotland. North of the border, flood policy is controlled separately by the devolved government, which tends to deal with the risk rather better.“
Prof Lee Bosher
Professor of Risk
University of Leicester School of Business
Department of Marketing, Innovation, Strategy and Operations
University of Leicester | Brookfield | London Road | Leicester | LE2 1RQ | UK e: lsb235@leicester.ac.uk w: https://le.ac.uk/people/lee-bosher X: @leebosher