The 3 storey red brick building in the foreground was demolished recently (photo taken in 2014). Residence of the co-op were told to evacuate the place on April 1 after the building was at risk of collapsing. People couldn't take their belongings with them. This happened after construction crew for a new condo project dug a hole near it where the Keegan house used to be. The land all around it had been worked on for years now (photo below) so it's not surprising the old houses were affected by this. In 2016, it's open season on old buildings in Montreal. CBC report.
Addendum : I've taken some photos today of the site. I'll update it tomorrow.
Addendum: J'ai pris beaucoup de photo aujourd'hui du site. Je vais partager les images demain.