Green shoots, the recovery is here, houses are bottoming!
Not so fast! Yes many areas may be reaching a bottom but that does not mean that all places have hit bottom.
For example it is believed that housing bubble ground zero locations like Vallejo, California have come close to a bottom. Therefore, hot areas like Palo Alto, must also be similarly close to that bottom eventhough prices there have not fallen (on a percentage basis) nearly as much.
The typical explanation for the differential treatment is that Palo Alto is desireable and therefore immune to a large price decline. I would like to suggest that its not about “absolute” price but “relative” value.
Yes, a house in Palo Alto will ALWAYS be worth more than a house in Vallejo but I argue that the RATIO of house prices should remain close to constant. If Vallejo rises in value then Palo Alto will rise in value but if you divide the value of a house in Palo Alto by the value of a house in Vallejo the resulting number should, over the long term, be relatively the same. So that is what I did.
Using data from Zillow I took the sales price per square foot of houses in Palo Alto over the past 10 years (2000-present) and divided it by the same metric from Vallejo to plot the ratio. For extra credit I also calculated the ratio of Palo Alto to both Hayward and Mountain View.
Why Hayward and Mountain View? Simply put Hayward is a little closer in and a more rational commute (not many people would think you were NUTS to commute to the Silicon Valley/San Francisco job centers from there). I chose Mountain View because that is the, only slighly less desireable, southern neighbor to Palo Alto.
So here is a picture of what I found:

What does this all mean? Well let me state one other assumption and that is let’s assume the year 2000 was a ratonal year and that that ratio represents a normal premium of Palo Alto over the other cities. (older data was not available from Zillow)
Lets divide the chart into 3 segments:
- 2000-2001 – The “normal” period in which the ratios represent the typical balance.
- 2002-2006 – The “bubble” in which all hell broke loose.
- 2007-2009 – The “deflation” of the bubble. (NOTE most people agree that the bubble started deflating in 2006-2007 across the US.)
So in the “normal” period we see the ratios between Palo Alto and its neighbors staying relatively confined (maybe a 5-10% swing at most). This is what you would expect.
Now if we look at the “bubble” period we see a relatively dramatic drop in the ratio which means that Vallejo and Hayward were gaining on Palo Alto. Did they actually become more desirable? Well traffic would go up (more people were moving there driving up those prices) so I would say “no”. What it really means is that the bubble valuations hit Vallejo first.
Now if we look at the “deflation” period we see the ratio turning DRAMATICALLY in the other direction and well above the historical norm. This means that either (or both) that deflation hit Vallejo first and the bubble hit Palo Alto second.
One might argue that this means Palo Alto is safe EXCEPT for the fact that the ratio has so dramatically outpaced where it was in the “normal” period in 2000-2001. If it had returned to the levels of the normal period in 2000 then there would be nothing noteworthy here. In fact Vallejo returned to almost the exact same price per square foot in 2009 that it was in 2000 where as Palo Alto was still almost double where it was in 2000 as shown here.

So what would it take for this ratio to fall back into line (and deflation to hit Palo Alto second)? Simply put, compared to Vallejo, Palo Alto prices would have to fall 39%. Compared to Hayward they would have to fall 26%. This of course assumes that Vallejo and Hayward have truly bottomed out which is probably not the case. Assuming they have even the most conservative estimate pegs Palo Alto at a 26% fall.
Heck even compared to it’s neighbor Mountain View it would have to fall 11% to come into line with the historical ratio.
In short Palo Alto has some falling to do. It just was late to both parties.
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