As an American, I don't seem to understand Canadian currency at all. I've watched 'Love It or List It' on HGTV knowing that it's a Canadian show but the prices

As an American, I don't seem to understand Canadian currency at all. I've watched 'Love It or List It' on HGTV knowing that it's a Canadian show but the prices of the houses are all typically anywhere from $700k-$900k for 1600 to 1800 square feet. Trying to convert it back to a price in US dollars I guess isn't quite right. What's the median income in Canadian dollars that makes home prices so high? Side nitpick: do Canadians primarily use square feet as a measurement? Is that a real estate standard even though Canada is mostly metric?