A casual observer would have thought that the building was unsafe, condemed, or about to be imploded.
Demolition by neglect, appears to be the way that BC Housing likes to deal with this substantial building, along with the many other buildings on the grounds.
A building Condition Assessment Report was done in 2013, download a PDF copy, and have a look.
Put a small collection of images into a Flickr set, named guess what ? Henry Esson Young building
Also some photos at Panoramio: ONE — TWO — Main entrance — Classroom block and friends
UPDATE: March 13, 2014, I recently visited the HEY building and all the first level doors and windows were covered in pexiglass sheeting, which must have cost a small fortune, and we have a government pleading for self-sustaining development of the site, when the original glass was just fine. Also removed was the murals ☹ painted on the inside glass and walls of the old library. Obliterate all remnants that there ever was a hospital here, appears to have been the command from high up, so that they can sell OUR assets to their friends, and prop up their lifestyles.