Here's a nice survey of Marin County home sales from 2005-2007 co-authored by my appraiser Chantal Griffin, of Griffin Appraisals. The survey goes town-by-town and divides the properties into single family and townhomes and further divides sales into price ranges.
The local newspapers often report the median price for the county, and how it has changed over the last year, but that doesn't tell the whole picture for the county and can be misleading. For instance Novato sales are quite different from Mill Valley's, not only in price but days on the market. Novato, being at the northern end of the county was the last area to see appreciation during the last few years and the first to see values decline. Mill Valley, one of the jewels of Marin is one of the most desireable places to live due to it's proximity to San Francisco, great schools, neighborhoods, and beautiful downtown, not to mention redwood trees, and trails.
A sample headline for a summary of Mill Valley home sales is: "MILL VALLEY SINGLE FAMILY HOMES BUCK NATIONAL TREND. Values hold or increase in stable market."
The report also states for Mill Valley, that "the median selling price has increased from $1,177,500 in 2005 to $1,220,000 in 2006 to $1,275,000 in 2007. These represent year-to-year increases of 3.6 percent in 2006 and 4.5 percent for the year 2007. Median days on market have increased only slightly going from 31 to 34 to 36 for 2007."
Also provided are the number of sales by town per year and price increase/decrease as a percentage change from the prior years and days on the market.
The cities included in the report are: Belvedere, Corte Madera, Fairfax, Greenbrae, Kentfield, Larkspur, Mill Valley, Novato, Ross, San Anselmo, San Rafael, Sausalito and TIburon. Marin City is not represented in the report.
If you're shopping for a home or considering listing your home for sale in Marin, or just curious about values in the county, this report provides a lot of data and is organized in a readable "magazine" format.