John Burns has a great calculation on how much home prices could fall: http://www.realestateconsulting.com/local/local200706.html
OC needs to drop by -34% or -$245k to return to normal.
"The most likely scenario in these markets is that resale prices will fall, but not as much as we calculated, unless something terrible happens like mortgage rates spike or the economy enters a prolonged recession."
Mortgage rates for jumbo loans which you need to purchase the median priced home in OC just spiked. Matthew Padilla's most recent interview with
Manuel Ramirez of KBW said "I believe this is likely to have a significant impact on consumers in California. With its high home prices, Jumbo loans are very common in California. The disruption in the market over the past month is likely to more negatively impact homeowners here than in any other state in the country."
What did John Burns say in a May 5th 1991 article?
"We feel the top of the real-estate market was mid-1989, and that home prices in some pockets of the county have dropped 2, 10 and 30 percent," Burns said.
He added that when home prices drop, a higher number of homeowners owe more on their mortgage than their house is worth, so they can't sell their home to pay off their debts.
"When (a long-term decline) happens to home prices, you're going to have a lot of foreclosures, and they're going to hurt."
He was right then and he is right now.