10 Fenchurch Avenue is a mixed-use office development located in the heart of London’s insurance district. This 420,000 sq ft office building com-prises of 17 storeys, providing commercial office space, retail use at the lower levels, a public passageway at street level and a publicly accessible roof garden. The building also has a four-storey basement for vehicle parking and plant storage. Access to the car park is via two dedicated car lifts.
The scheme was designed around the requirement to keep the existing high street bank on the site in operation whilst demolition and construction works are taking place. The construction programme prioritised the requirement to build the new bank premises in order to facilitate the move into the new building and to allow demolition of the old bank building.
The basement construction used additives to provide the required waterproofing. The two cores were slip formed requiring70m³ per day each. As the basement box and slip formed cores were completed the structural steel superstructure was erected and tied back into the cores, finally the structure was completed with composite concrete floor topping