Several trends responsible for this. Loose monetary policy - many asset prices have risen - stock markets, property prices in major cities. In the case of Lon

Several trends responsible for this. Loose monetary policy - many asset prices have risen - stock markets, property prices in major cities. In the case of London, it's seen as a safe haven so foreign investors park their money in property here, banks willing to lend large mortgages, influx of people moving London.. And not enough new housing (aside from high end property development in Central London, which several hedge funds are now shorting incidentally). Other factors will change but the population growth trend isn't going to slow down any time soon in London. I think remote work could be incentivised on a larger scale so people can choose where to work from.