Your comment "30%+ van can't condos in the downtown area" doesn't make any grammatical sense. Are you saying that 30% are vacant, or 30% are occupied?

Anyway, here is the study I think you were talking about, which says that 42% of Vancouver condos are vacant, compared to 3-6% in other areas of Metro Vancouver:

http://www.huffingtonpost.ca/2013/03/22/vancouver-housing-va...?