This the MacDonald Lofts. It was built in 1913 by Alexander MacDonald as the A MacDonald Building. It was operated as a wholesale grocery company.
It was in use until 1965 when it was coverted into lofts.
Most recently it has been run as low cost housing complex. Unfortunately it became rundown to the point that it has been shut down. It was purchased by new owners who are intending to fix it up