wrbc services ltd applied to the city of london corporation for planning permission in september 2012 to demolish prudential house (52–54 lime street and 21–26 leadenhall street), allianz cornhill house (27-27a leadenhall street), and winterthur house (34–36 leadenhall street and 4–5 billiter street) and to construct a new building of 38 storeys comprising office and retail uses.