A think tank has said that high rise housing blocks should be bulldozed and replaced with houses in a bid to tackle social problems and "no go" areas. A Policy Exchange report said there was evidence that multi storey flats attracted higher crime rates.
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The ComRes survey for ITV News and LBC showed the Labour candidate increasing his overall lead over Conservative rival Zac Goldsmith.
The latest poll for ITV London and LBC shows Sadiq Khan leads Zac Goldsmith by 45% to 36% on first preference votes.
Corbyn was unveiling a poster less than a mile away as Khan gave his final campaign speech to party supporters in London.