Role: Full structural engineering services; façade consulting services
This unique and complex project consists of a very slender 52-storey condominium-hotel linked to the existing turn-of-the-century 15-storey Toronto Dominion Bank building. Purported to be one of the world’s most slender residential buildings at the time of construction, the tower's height-to-width ratio is approximately 11:1, which is much greater than the more usual 4 or 6:1 value. Parking levels, an atrium, a specialty theatre and an additional storey containing luxury townhouses were added to the bank building.
The tower has a gross construction area of 47,800m², with 574 units and parking for 101 vehicles. The primary challenge on this project was to develop a structural system that would support the 52-storey tower and minimize the sway at the top within a narrow 15m width, but would not interfere with the historically protected architectural elements in the bank building.
In addition to structural engineering services for the complex, we provided building envelope consulting services for the historic preservation of the bank façade.