The Olympic Delivery Authority chairman will be joining Building readers for a webinar on the 2012 Games at 12pm on 4 November.

John Armitt will talk about Beijing 2008, his first year in the job and the challenges that lie ahead. Other speakers will include John Burton, Westfield’s UK development director, who will be talking about the opportunities at Stratford City. Anyone interested in logging on should sign up now for just £45. Supported by the Olympic Delivery Authority.