Northstar makes a good point, but there are others.
1) Terrafirma, that graph is absolutely useless as it is not an inflation adjusted graph. If you adjust for inflation cdr108, the average increase in price is approximately 40% from 1996 to 2009. This is under the 4%/year curve (which is inaccurate as RE shows closer to a 2% rate of return after inflation) and shows that an average price of around $360-370000 is about right. If you'd like to read a much better prepared and sound summation of the current real estate situation I would suggest this link:
http://www.torontohomes-for-sale.com/4a_custpage_2578.html .
2) We experienced no price "spikes" in this current real estate cycle (unlike 1974 and 1989), but a gradual gain - unlike many other cities in the world and in Canada (think Vancouver and Calgary).
3) Adjusted for inflation to 2009, the average price in 2003 is closer to $320000. So a historically and inflation adjusted rate for 2009 would be approx. $375 000.
4) According to the article you requested me to read, Terrafirma,
"It should be noted that the GTA housing market has followed the broader economic slowdown, but was not a cause of the downturn. Home prices
remained affordable throughout the new millennium. The average family can still qualify for a mortgage on the average priced home. This remains the case today. Given that we are not facing an early-1990s-style affordability crisis, the rebound in the housing market will likely be quick once economic recovery takes hold."
5) While Toronto will feel the recession and have some job loss, the serious job losses will be occurring elsewhere in the province in the manufacturing centres. Our financial core is solid and the types of jobs necessary in order to afford a home in Toronto will be minimally affected.
I don't have a crystal ball and I'm not saying that no homes will fall another 20%. My guess is that most homes valued at 600 000 and up will fall at least that much from their peak, if not further (and thus, if using a non-weighted average and not a weighted median will skew the statistics to show a larger overall average loss), but the homes in the 300 000 - 600 000 range will, at most, and with a weighted median as our guide, drop an additional 5-10% on top of the 6% drop they already have experienced. This will correct rather quickly though as that would be a fire-sale price. This skewing of averages also happened during the last correction as many lower priced properties stayed out of the market (because people wanted to live in them), and the higher priced ones languished, constantly dropping their price and thus pulling the average down.