Have you gotten the answer you were looking for? The value of a home is dependent on many factors, Location, Condition, Upgrades and Demand all play an important part is placing a value on the propery. A Realtor will be able to determine the market value of the property because of the access to information that you may not have. An Appraisor would be able to determine the loan value of the property based on the same factors. These two amounts may not be the same.
The fact is a property is only worth what a buyer is willing to pay and what a seller is willing to let it go for and the Bank will not lend more than the appraised value.
Do your self a favor and hire an experienced Realtor to help you set the value of your home. You may be money ahead. Best Wishes