What is wrong with using published data or the MLS data? SR 1-3 does not say it has to be original work, does it? You rely upon a lot of things published - cost books, rent surveys, etc.
Of all places, I would think California would have several sources for market conditions reports.
Further, REDFIN publishes a data center on line that you can search by county, or metro in most every state. It shouldn't take you more than 30 minutes to figure out how to use the charts to find your county and data. Then you can examine a lot of different trends over the past few years.
View and download the latest housing market data from Redfin, including home prices, sales, inventory, new listings, and days on market.
www.redfin.com
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