One Threadneedle Street City EC2R Timeline News and progress updates from One Threadneedle Street new development in City EC2R Post a new milestone SEB Asset Management sells office property in the City of London after successful repositioning SEB Asset Management sold One Threadneedle Street after a successful... 22/12/2012 by Buildington SEB Asset Management has let the entire One Threadneedle Street property in London’s financial district to Nationwide Building Society. The lease runs for 20 years. The... 28/08/2012 by Buildington