If you are interested in the Potomac real estate market, you might want to read a new blog post at our main blog, here: http://dcrealestatemarketplace.com/potomac-real-estate-market-update-for-march-2012.
In that blog post, we discuss the median asking price of homes currently for sale in Potomac, as well as how many homes are for sale now, and inventory levels over the past three years. But we ran out of room, and didn't talk at all about how long homes are staying on the market, on average.
Sadly, for home sellers in Potomac, according to the graph above, it seems to be taking longer and longer for homes to leave the market. This graph covers two years, but in March of 2010, it took an average of 140 days, and now that number is closer to 170 or 180, depending upon whether you are looking at weekly data points, or the rolling trend line.