The vacancy rate is used to illustrate the share of total office real estate that is currently unoccupied.It can be seen that the vacancy rate of office real estate in the West End of London fluctuated during the period under observation , reaching a value of 4.8 percent as of August 2020.Vacancy rates in London 's West End has remained relatively stable during the period under observation , with a slight increase in the July and June 2020 .