The death of a toddler that was caused by his exposure to mould has led to a sharpened focus on those whose job it is to ensure people have habitable homes.

In Awaab Ishak's case, a coroner found a housing association had failed to act to prevent the two-year-old's death, from a respiratory condition. While no other coroner has reached such a conclusion, instances of health problems being connected to mould are not uncommon.

BBC London visited a flat block in Hendon, north London, to speak to residents who say their lives are being affected by this issue.

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