You may or may not recognise this building, but one Kensington agent reckons it holds the key to determining which properties command the biggest premiums in the Hyde Park area.

The Clarges Estate, Mayfair British Land has entered into a corporate agreement to purchase a vast swathe of Mayfair, including Clarges House, 6/12 Clarges Street and 82/84 Piccadilly for £129.6 million.

Nine out of ten global high net worth individuals are planning on either increasing or maintaining their directly-owned real estate holdings, according to a major new poll of wealth managers and private…