100 Leadenhall Street City EC3A Timeline News and progress updates from 100 Leadenhall Street new development in City EC3A Post a new milestone Plans approved The City of London Corporation has decided to grant planning permission for the development of a new skyscraper at 100 Leadenhall in the City of London. When... 11/07/2018 by Buildington Plans submitted Planning application submitted for the demolition of the existing buildings and construction of ground plus 56 storey building (263.4m AOD) for office use (Class B1)... 15/02/2018 by Buildington