The 236 metre (774 ft) building was the tallest in Calgary between July 8, 2010, when it surpassed the Suncor Energy Centre, and May 11, 2016, when it was exceeded by Brookfield Place.

EnCana Corporation (now Ovintiv), North America's second largest natural gas producer, announced plans for the high-rise in 2006.

The management company in charge of the project was Texas-based Matthews Southwest, with architectural services furnished by UK-based Foster + Partners and Zeidler Partnership Architects of Calgary.

[9] The final tower stands 11 meters short of the original plan after concerns were raised regarding the shadow cast upon Bow River pathways.

Erection of the above-ground steel superstructure began in October 2008 with the installation of the first of two Favelle Favco heavy-lift tower cranes.

Construction was briefly halted in December 2008 due to a $400 million shortage of financing needed to finish the job.

[25] Encana officially confirmed on June 16, 2008, that Jaume Plensa, an artist most famous for the Crown Fountain in Chicago, had been chosen to complete two major public art installations for the project.

[27][28] The second work, entitled Alberta's Dream is located on the north side and depicts a bronze casting of the artist embracing a living tree.

[citation needed] Floors 54 and 55 are home to the private meeting, lounges, conference center and sky high clubs.