First of all; If the LISTING PRICE is higher than surrounding houses, either it has some feature(s) that others do not have, or,
The Seller has priced it artificially high.
The LISTING PRICE is the arbitrary number that the Seller assigns to the Listing, that they feel it is worth, or that they want to get out of it.
That does not mean that that is the MARKET VALUE.
That does not mean that that will be the SELLING PRICE!
If the Seller and you have not done a CMA to determine the true MARKET VALUE; then neither of you knows what the house is really WORTH!