You should allign yourself with a real estate agent that you trust! They will give you a current competative market analysis for your neigboorhood and subdivision, that will enalble you to ask the right price for your property. Pricing properly results in quick sales!
A Realtor or appraiser will provide you with the most accurate data. Another approach is to scour the area here on Trulia, Zillow, CyberHomes, and the many other sites. You will see that values vary widely. Best to have a local professional to the work. An independent thriird party appraiser is best!