Why the Square Mile beats Canary Wharf

When a building’s construction requires the closure of a nearby airport, you know that the building is tall. But that’s the thing about the Square Mile at the moment – it’s so successful that the only way is up.

The cranes on 22 Bishopsgate (rather than the building itself) reached such a height, as the skyscraper neared completion, that they exceeded the permitted limit for City Airport, meaning that for a few short periods the airport had to halt flights. As you stand in Horizon 22, the viewing gallery that has just opened (tickets are free but booking up fast), looking down at nearby streets is like reading the A to Z. But while 22 Bishopsgate might be head and shoulders above its neighbours (912 feet, 62 storeys), there are plenty more office towers on the way.

‘Over half a million people a day come into the Square Mile to work,’ says Shravan Joshi, the City of London’s Planning and Transport Committee chair.