January 27, 2009

Case-Shiller: Bay Area Home Price Drops Show No Sign of Relenting

I apologize again for the multi-week radio silence here. We’ve revamped our data delivery to be able to better streamline the whole process, and from now on there will be a regular schedule of in-depth data in this space. For now though, it’s time for our monthly check-in of the S&P/Case-Shiller Home Price Indices (HPI).

For an explanation of how the Case-Shiller data is calculated, check out their methodology pdf. Also remember that the data released on the last Tuesday of a given month is for the period two months prior (i.e. – November data is released in January).

Here are the basic Case-Shiller stats for the San Francisco area* as of November:

November 2008
Month to Month: Down 3.0%
Year to Year: Down 30.8%
Change from Peak: Down 38.1% in 30 months

The following chart shows the San Francisco HPI scaled such that the May 2006 peak is 100% on the y-axis. Data on the x-axis is scaled to display the last time (pre-peak) the San Francisco HPI was at or lower than it was in the latest data (April 2002).

sf-case-shiller-peak_2008-11.png

With last month’s drop in San Francisco’s Case-Shiller HPI, prices have now effectively “rewound” close to seven years.

Here’s a chart of Case-Shiller HPIs for all the markets that Redfin serves, so you can compare San Francisco’s performance to other areas across the country:

case-shiller-redfin-markets_2008-11.png

And here’s one more chart, in which I have lined up the peak Case-Shiller HPI value for each of Redfin’s markets, so we can see how long each market has been declining, and how much it has dropped from the peak.

case-shiller-peak-declines_2008-11.png

San Francisco now takes the lead for largest overall decline out of the seven Case-Shiller-tracked markets that Redfin serves. Among the entire 20 cities tracked by Case-Shiller, only Phoenix, Miami, and Las Vegas have seen a larger overall drop in prices since their respective peaks.

*[Case-Shiller defines San Francisco as the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area, which includes all of the following counties: Alameda, Contra Costa, Marin, San Francisco, and San Mateo.]


Comments (7)

jaime1007 said:

Are we half way down?

HHB said:

If you’re interested click my name to see a graph I did that incorporates the CME Futures Data for the San Francisco Case-Shiller Index.

As you’ll see we still have a ways to fall…

We’ll be very close to a 50% deline by Nov 2009.

ilikemike97 said:

Hey, here’s a little tip:
When you are doing a graph with 8 cities (such as the ones in this article), don’t use 2 shades of avocado which are almost imperceptibly different and 2 shades of indistinguishable maroon. Try differnt colors completely (eg. burnt orange, lavender, sky blue, and lime green); or use broken lines (dashes) and solid lines.

Thanks.

Robin said:

ilikemike97, I agree about the colors- it’s only the middle graph, though. The rest of the graphs have markers with different shapes.

I love to see graphs of trends like this, especially since I am thinking about purchasing a house in the SF Bay Area. Thanks for posting it!

A. Lewis said:

This is great work, but I think it’s really valuable to show the 3 C-S tiers separately – we all know how differentiated the market is – the low priced homes didn’t move at the same time, or same pace as the high-priced homes.

Can you do some of this with the 3 tiers separate?

Tim Ellis said:

Good feedback everybody, thanks.

I’ll see what I can do RE: the colors and the tiers.

Peninsulaman said:

Have a 1050 sqft home in hmb. Found a 2900 sqft home that went off the market in hmb for 1.1M buyer will accept 1.05M. Was originally listed at 1.55 and is new construction never lived in. Is this a good time to buy considering that I will also be selling. Only 500,000 into my place with a 300,000 balance on mortgage.

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