Smithson Plaza St James's SW1A Timeline News and progress updates from Smithson Plaza new development in St James's SW1A Post a new milestone Tishman Speyer has completed the first phase of renovation at 23-27 St James’s Street, Alison and Peter Smithson’s last remaining building in London. The Grade... 12/06/2018 by Buildington The Economist will soon be moving out of The Economist Plaza. "This is our last Christmas in a tower that was created for us. Next summer we will move into the Adelphi... 04/01/2017 by Buildington