I agree on liquidity, but housing, occupied or not, is quite illiquid anyway. If you care about liquidity, you'd rather invest in other asset classes. Property

I agree on liquidity, but housing, occupied or not, is quite illiquid anyway. If you care about liquidity, you'd rather invest in other asset classes. Property prices and rental income in London are extremely high. I cannot see how anyone but the extremely wealthy could afford letting London property stay empty as an investment. And there are not enough extremely wealthy around to account for the large number of empty properties that London is allegedly seeing.