25 Soho Square Soho W1D Timeline News and progress updates from 25 Soho Square new development in Soho W1D Post a new milestone Aviva Investors has let the 3,681 sq ft sixth floor of 25 Soho Square in London to mobile security firm Lookout, on a 10-year lease with a five-year break and 11 months... 27/07/2013 by Buildington New photos! 26/05/2012 by Buildington Coming soon - 44,000sq ft Grade A office development by Buckley Gray Yeoman on behalf of Aviva. 27/01/2012 by Buildington Offices available in this refurbished former FA headquarters (2000-2009). Sole agent - CBRE. 05/06/2011 by Buildington