In its Global Market Perspective for Q315, Jones Lang Lasalle IP Inc. (JLL) noted that the vacancy rate for Grade A office space in London was 3.9%, and that there is a supply pipeline (completions in 2015-16 relative to existing stock) of 5.1%. Over the last year, rents have risen by 11.9% and capital values have increased by 19.9%. Prime yields in 2Q15 were 3.5%.

Source : August 2015/JLL/London/OFF