While you may be able to find "average" market time on sites such as Trulia, they usually will not be completely accurate, as they cannot account for homes that expired and were re-listed, and/or homes where the listing was cancelled and then immediately re-listed, which is a ploy sometimes used to fool the average person into thinking the home was available for a shorter period of time than is actual.
Go to your MLS, pull up all the sold homes in the community you are researching, then look at the History of each of these homes to determine the actual, cumulative days on market for each home. Add of these numbers for all the homes, and then divide that total by the number of homes.
This can also be done for active listings.
I do this every month for select towns. It is very time consuming, but you'll learn much more than the average agent about what the true marketing time is for homes in each area.
Hope this helps!
You should look at market time for you neighborhood and price range as well. Then look at the anonalous ones and see what their original list price vz selling price was. There have been many houses on the market for a long time because the owner started at an unreasonably high price.
Have a full market analysis done for your home. Discuss all of the factors with the agent(s) you interview. How long a house takes to sell is usually a direct correlation to the original asking price, and how effectively it is marketed on the internet. The marketing has to be specifically targeted to the most likely buying audience for that property. An ad written for a $200k house should be very different than one for a $700k house. In either case, there should be a lot of descriptive info and tons of good, clear, bright, timely pictures and virtual tours.
I don't believe there is a way through Trulia to determine average market time for a specific area. The local Multiple Listing System allows member agents to run such stats. Most local agents should be able to provide you with this information.
Let me know what area you are looking at, and I will be happy to email you some stats.
Christopher Rich - REALTOR
William Raveis Real Estate