At least two Ronan Point-style tower blocks in North London are likely to be torn down after engineers discovered the blocks are at risk of progressive collapse.
In total, structural engineers from surveyors Ridge discovered flaws in 11 tower blocks in Tottenham.
The six-storey Tangmere and 18-storey Northolt towers on Broadwater Farm are now facing the prospect of demolition following routine checks made after the Grenfell Tower fire last June.
Further stress tests have revealed the two towers could suffer a partial collapse – similar to the fate of Ronan Point in 1968 – if a gas explosion occured.
The fate of the two tower blocks on the Broadwater Farm estate will be decided at a Haringey Council meeting next Tuesday, but it is likely the towers will be torn down as work to stabilise the buildings would cost up to £33M.
Cabinet member for housing and estate renewal Emina Ibrahim said: “Throughout all the work that has been done on the estate in recent months, Homes for Haringey and the council have engaged with residents and the Residents’ Association to ensure that everybody understands the steps that have been taken, and we will ensure that those conversations continue.
“A decision on the long-term future of these blocks will only be taken following proper consultation with residents.”
Tangmere failed both a 34 kN/m² and a 17 kN/m² structural test, meaning there is a risk of progressive collapse from an explosion caused by piped gas, or a vehicle strike or bottled gas explosion.
As Tangmere has a piped gas supply, residents will be evacuated. Northolt also failed the 17 kN/m² structural test but is not connected to a main gas supply and so residents will not immediately be rehoused.
Although only two towers are being considered for demolition, 11 out of the 12 towers at Broadwater Farm failed the 34 kN/m² test, which is a requirement in the current building regulations.
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