The 278m-tall proposal, which was granted planning permission by the City of London last month, will be 10m shorter than the abandoned scheme – dubbed the Helter Skelter – but will have 30 per cent more floor space.

The new 62-storey building will provide 185,000m² of office space for about 12,000 people in 100 companies. The high-rise office tower will also feature a restaurant and bar, retail space and a public viewing gallery.

The design of 22 Bishopsgate is being led by Karen Cook, who co-founded PLP following her exit from KPF in the summer of 2009.

Johnson, said: ”After lying abandoned for four years, 22 Bishopsgate will now get off the ground, providing much needed office space for thousands of city workers and a positive addition to the world-class architecture of the capital’s skyline.

”There will be more than 800,000 new jobs created in London over the next 20 years and there is no doubt that tall buildings that are sensitively managed, well designed and in the right place will continue to create the new office space the city needs to retain its place as one of the business capitals of the world.”

Developer, Stuart Lipton of Lipton Rogers, added: “The mayor has recognised 22 Bishopsgate as a major contribution to the on-going vitality of the City of London with a distinguished and interesting building that includes a number of new innovations designed to put the health and wellness of people first and which aims to be the first building in London to adopt the new Delos WELL building standard.”

The scheme is set to complete in 2019.