Canada 2015/16 (Stats Can, July to June)
immigration per year 300,000
total est. annual increase = 423,890
Close to half a million new bodies to house annually. Just the immigration annual number alone is four times the population of my city. Just the immigration number, assuming a family of four, requires 75,000 further two or three bedroom housing units annually. Of course, not all are families of four, some are single, some are couples.
Regardless, more housing will be needed with 1.5 million immigrants arriving over the next five years. Then add in extra bedrooms that may be required for births, and increased numbers of international students being sought by the colleges and universities, with the assistance and blessing of the feds. FWIW