History was made Thursday afternoon when a 14-metre piece of steel girder propelled the Bow Tower taller than its neighbour the Suncor Energy Centre, making it the tallest building in Calgary — and, at nearly two million square feet, one of the largest.

“We’re so proud to have been able to give Calgarians a building they are proud of. It’s a unique structure for this part of the country,” said Michael Brown, associate vice-president of developer Matthews Southwest.

The girder is the first step in growing the building to 57 floors, from 55. Suncor’s building stands at 52 storeys.

“Calgarians may have thought this was just a building ... but what we’re hearing now is it’s iconic. We couldn’t be more thrilled how Calgarians are embracing it.”

Brown said plans for the delayed south building and won’t be until the main building is finished, but said everything for the Bow Tower is on schedule.