The scale of London's super-basement craze has been revealed in a study that found 4,650 had been approved in a decade. Around 1,000 gyms, 550 media and cinema rooms, 380 pools, 380 wine stores and 120 staff rooms have been uncovered in plans for huge basements built between 2008 and 2017. In total 112 'mega basements' with three or more storeys had been approved, and 785 'large' basements with two or more storeys, the Newcastle University study shows.
Daily Mail (08/05/2018)