You can also try to search by the address on Trulia. If the information is made public by the assessor's office we should display it. Please note however that there can be a lag between the time a home transaction takes place and the time it is reported to us.
I would ask a local Realtor. That information should be readily accerssfile incase it was a private sale.
If you are wondering what home cost, this would be a good start. As a Realtor for a market report on the area you are thinking of living.