Tuesday, 28 June 2022
Tuesday, 23 November 2021
The River Westbourne flood defences, the tale of two boroughs
An update post by David Walton of FLASK
Brent used to have more River Westbourne flood defences but still has some, publicly owned natural parkland flood defences throughout South Kilburn Vale, that were built in the 1950's and 1960's. These flood defences have been incrementally built on since 2000 and the impacts are already being felt. The new intention is to establish this as a tall building zone as set out in the Brent Local Plan to 2041 which awaits final approval. Population growth is planned to rise from 6,000 in 2000 to 36,000 by 2041. Brent has no plan to mitigate growing flood risk which is exacerbated yet further by excavating giant underground car parks. A mainline electrified railway luckily severs South Kilburn Vale from the rest of Brent.
For its River Westbourne flood defences, the City of Westminster uses complex and expensively engineered solutions built inside its borough boundary, but it also ( cf July 2021 major Incident) clearly relies on Brent playing its full part in the flood defence of the City of Westminster upstream of the River Westbourne.
Westminster has the Carlton Hill natural hill (pending new developments area) which drains down onto the Brent floodplain vale, with Kilburn Park Road on the east bank of the River Westbourne (Westminster) relying on Brent's depleting natural parkland flood defences for safety. Then at the main borough boundary at Shirland Road, Westminster engineered flood defences start and which though of considerable scale failed in July 2021 and will with certainty fail again unless Westminster and agencies look at the bigger River Westbourne flood attenuation cross borough boundary picture. (See key Kilburn Park Road flood defences already removed like the 40 veteran trees roundabout flood defence or the Granville Road park flood defence three-quarters removed).
New map fragments recently obtained from Thames Water show how the culvert straightened high speed River Westbourne takes a dramatic giant sweeping curve from Kilburn Park Road into Shirland Road, and at this point (underneath the zebra crossing) also connects to the North West Storm Relief Sewer which heads west down to the River Thames at Hammersmith, while the Mid Level 2 Interceptor Sewer which heads east to Beckon Sewage Works connects to the River Westbourne nearby at the south east end of Shirland Road. Flood protection support is also supplied by two new large flood storage reservoirs underneath Tiverton Gardens and Westbourne Green. Both are rivers connected and were built in 2016 at a cost of £22 million. To quote from this new project’s 2012 description:
"The Sewer Flooding History Database (SFHD) lists 105 properties that have a flooding category of either AI or BI; however, it is known that the flooding issues affect many more properties in the area. Optimise (the contractor) are targeted with removing 177 properties from the SFHD flooding register and contracted to remove a minimum of 147 properties.
Primarily, the identified flooding areas are located around Formosa Street and Shirland Road. Prior to 2005 the problem was much smaller with far fewer properties affected; however there have been severe flooding events in 2005, 2007, 2008 and 2009. In both areas the flooding occurs incommercial and residential property basements.
Having considered a number of options, the preferred option proposed by Optimise is to construct a 20m dia, 20m deep storage shaft in Westbourne Green. From this a 3m dia tunnel will be driven to a 7.5m dia reception shaft in Formosa Street. In conjunction with managing flows at the Kings Scholar’s Pond and at a number of bifurcations in the Formosa Street area this will effectively resolve the flooding issues at Formosa Street. Flows from the shaft in Westbourne Green will be returned to the Ranelagh sewer (River Westbourne) by means of a pumping station with a return pump rate of 400 l/s. The Shirland Road flooding will be resolved by diverting more flow to the Mid-Level 2 sewer and constructing a 20m dia, 20m deep storage shaft in Chippenham Gardens.
In order to remove properties from the SFHD it has also to be proven thatthe properties flood due sewer surcharge / local incapacity. This information was collated through existing databases already connected to the properties, and via interviews with current residents in the area. There was an initial reluctance to complete the survey by residents and this was for a number of reasons, including many residents were not living at the properties at the time of the flooding events and property owners do not want their property on a flooding register. As such, the verified model has and will continue to be used to validate the number of properties that suffer from flooding".
The sheer scale of the City of Westminster's engineered flood defences that are place and being rapidly extended indicate that the wild River Westbourne is a major environmental risk to lives and property for this entire area of London. Yet this river is deregulated from Environment Agency responsibility and often commercially driven boroughs so Thames Water must work out what to do in an ad hoc and uncoordinated way instead.
The City of Westminster does seem at least to be trying seriously to take mitigating actions to protect its own residents and businesses on a borough boundary frontline siege basis, but these actions have clearly failed to accept this area’s wider geography and factor in the housing infrastructure in Brent’s urban growth zone. Brent seems to think that leaseholders and tenants in Brent and City of Westminster should 'learn to live with' traumatic flood risk escalation and then pay the costs created by its tall buildings growth area, built on a flood plain.
Liability is being cleverly being passed entirely to leaseholders and tenants for the moment, as this area’s big freeholder housing block owners will just make sure that flood repairs are actioned in a timely manner and that costs are then fully recovered from block leaseholders and tenants. They will be paying literally forever for the extreme over development of this floodplain. This, when natural parkland flood defences (that Brent is destroying) had proved excellent in protecting South Kilburn and North Westminster for decades.
David Walton
FLASK (Flood Local Action South Kilburn)
Wednesday, 4 September 2019
Tuesday, 18 November 2014
Westminster Labour opposes waiver on affordable housing in stark contrast to Brent Council
Wesminster Labour released this statement today:
Labour Councillors have objected to the proposal that the condition requiring a contribution of £500,000 towards affordable housing on the Jubilee Sports Centre development should be waived.
In a letter to the Council in advance of the Planning Committee on this evening, Labour Leader Councillor Paul Dimoldenberg, Queen’s Park Ward, said:
The reasons given for not following the Council’s planning policy arebased on a revised viability report on the expected profits of the Council’s development partner.The viability assessment dated December 2013, which has not been made available for inspection, is a year out of date. Since 2013 house prices in London have risen 16.2% and 11% in the City of Westminster (Source: Rightmove property index November 2014). As the Council’s independent viability report has not been made public we have no way of knowing whether the model used by the viability consultants does or does not ignore residential growth in values that occurs between construction start on site and the commencement of marketing and phased release of the dwellings.
Moreover, unlike Brent Council, Westminster Council does not require a second viability report following the completion of the development to assess whether overage payments should be made by the developer so that the Council can share in the profit from developing its own land. This is a serious failure by the Council in failing to capture the increase in value for the public benefit. This is something on which we will be contacting the District Auditor.
In addition, it is now common knowledge that the Mayor’s fund for affordable housing is substantially unallocated. It has not been proved that the Mayor’s Fund has been taken into account when drawing conclusions on viability.
The Committee should also be aware that the current balance of funds held in the Council’s Affordable Housing Fund (AHF) at 10 November 2014 was £87.4m. Of these AHF balances £48.6m is contractually committed to ongoing affordable housing projects. A further £16m is currently earmarked for further affordable housing projects that are currently being worked up.
This leaves over £20 million unallocated. In addition, at the end of March 2014, there were c.£34m in payments due to be paid into the AHF from consented schemes that had been partially implemented.
There is clearly sufficient money in the Council’s AHF to build more social rent homes on this site.
Moreover the application should be rejected as unacceptably contrary to the following policy grounds:
POLICY S16 AFFORDABLE HOUSING
• Affordable housing and floorspace that is used or was last used as affordable housing will be protected.
• The council will aim to exceed 30% of new homes to be affordable homes, and will work with its partners to facilitate and optimise the delivery of new affordable homes.
• Proposals for housing developments of either 10 or more additional units or over 1,000 sqm additional residential floorspace will be expected to provide a proportion of the floorspace as affordable housing.
The development proposes to replace 12 existing socially rented housing units with five socially rented units and seven shared ownership units. The ratio of shared ownership has now been altered to 80/20, amounting to a further unacceptable overall reduction in the number of social rented units. The Council’s policy requirement requirement to protect floorspace last used as affordable housing has not been met.
The overall number of units available for affordable housing amounts to 16% of the total number of units proposed, far short of the 30% target specified in policy S16. The Cabinet Member Report on the Supply an Allocation of Social Housing and Low Cost Home Ownership 2014/2015 dated 9th May 2014 recognises at para 3.2.1 that: “demand for social housing in Westminster continues to outstrip the supply of available accommodation to let “. The report goes continues: “Thirty four per cent of households need larger home (3 bedrooms or more) and ethnic minority households have a higher than average need for them at 38%.” The report is a material consideration for the determination of this proposal. The mix of units proposed does not reflect the demand projected by the Council’s Supply and Allocation Report.
The Committee has heard in the past about the extensive local opposition to this unwanted proposal.
In summary, the Committee should refuse permission for the conditions to be waived.
Thursday, 27 February 2014
Three boroughs near solution after long 'dangerous junction' campaign by residents
Crossing photographs from Father David Ackerman |
Friday, 14 February 2014
Solution in sight for dangerous Harrow Road junction?
Guest blog from Kensal Triangle Residents' Association who appear closer to a solution that they began to campaign about in February 2008. (pic from Kilburn Times above) Six years on a solution may be in sight.
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Sunday, 9 February 2014
Moberly Sports Centre proposals available for comment
Follow this link to see the Kilburn Times report on the proposals: LINK
However the KTRA have issued this guide:
Go to the Planning Application by clicking on this LINK
When you comment on the application remember to State 'Object', 'Support' or 'Comment'. At the time of writing of the on-line returns there were 22 Objecting, 9 Supporting and the rest were Comments.
Because of a delay due to an independent financial assessment of the scheme comments can by made up until the end of March,
Saturday, 15 June 2013
Declaration for People's Assembly June 22nd
Saturday, 1 June 2013
Anti-fascists far outnumber BNP in Westminster demonstrations today
BNP demonstration opposite parliament |
When I left the ant-fascist demonstration was in two parts with the first, mainly young, arrivals clustered around BNP but separated from them by a line of police. The later arrivals, who included many trades unionists, were separated from the others by police vans.
I spoke to an officer just before I left who said that the police were trying to negotiate with the BNP and anti-fascists for each to march in a different direction - but so far there was stalemate.