At this time, in the last three months, Petaluma has sold on average 56 homes per month, ranging in price for $134k to $1.275M. The average price is $394,363 and the median price is $348,500. To long time residents, these prices are very low.
For example, during these last 3 months in 2011 (Feb 12 to May 10), 42 homes per month sold, ranging from $189k to $915k, with average price of $417,494 and median of $383,000. So you can see how prices have fallen 6%-9% in just one year, even though sales volume has increased.
As to home affordability, Sonoma County is in the middle of the 9 Bay Area counties. San Francisco, Marin, and San Mateo are at the top being most expensive, and Solano county is at the bottom of the list being the most affordable.
Many times buyers are forced to live in areas that are more affordable. Please don't hesitate to ask any other questions you may have about living in the San Francisco Bay Area. Thanks, cj email@example.com