The building was designed by Culham Pedersen Valentine, and built at a cost of $90 million.[2] It had a total surface of 69,952 m2 (752,960 sq ft), and an additional 23,000 m2 (250,000 sq ft) were added in 1995. Further expansion in 2004 added another 100 beds.
The hospital underwent expansion and upgrades, with two operating theatres added to the surgical suite, and vertical expansion of the Highwood Building.[3] The construction included an additional 100 inpatient beds, as well as three stories added to the hospital's North Tower, and five stories to the south side of the hospital.[4] These expansions were completed in 2008.[5]