Zillow receives information about property sales from the municipal office responsible for recording real estate transactions in your area. The information we provide is public information gathered from county records. Our parcel information, which outlines the lot on which a house sits, comes from various public sources, such as the county. We regularly update this information as we receive it from data providers.
In addition, listing-generated property pages may contain information pertaining to previous listing activity. Listing-generated property pages do not include public record data (i.e. price history and tax records); therefore, these property pages typically host less information about the home.