In order to do a CMA you need to look at what other houses in your neighborhood have sold for (Yes, only the ones that have sold.  You can't logically use what other houses are presently listed for because that a house typically lists for and sells for is different). 

The easiest way to get a CMA is to have a realtor do one for you.  The web site for the Lexington Bluegrass Realtors Association will let buyers see what houses are listed for but only a realtor can see the sold houses.   Tell the realtor you want to see a listing of all the houses sold in your area within the last year.  I stressed all the houses because unfortunately, some realtors only compare houses which are larger or cost more than yours, so you think he/she will get more money than your house is worth.   This is a disadvantage to honest realtors because people often list with the agent who misrepresents the value of your home.   After you are listed with him/her they will come back later and tell you that the market has changed and asks you to lower the price.     Markets change and there are many reasons to lower prices but making sure that all the comparable houses are in your CMA will help you determine what your house is really worth, and what your realtor is worth.