London is now considered one of the world's most extreme urban heat islands, according to the London Climate Ready Partnership.
The capital's concrete jungle can result in the centre of the city being up to 10C warmer than surrounding rural areas.
It means many homes become uncomfortable in the heat - unless measures are put in place to do something about it.
As a musician, Andre Louis works a lot at his home in Kilburn and in summer, despite having numerous fans placed around the rooms, he says it gets unbearably hot.
"The way that these places are built, they are built for warmth, but that means that in heat, it is doubly warm," he explains.
