Average sale price information can be useful in establishing long term trends, but should not be used as an indicator that specific properties have increased or decreased in value. (rahb.ca)
The FHFA monthly HPI is calculated using home sales price information from mortgages sold to, or guaranteed by, Fannie Mae and Freddie Mac. (rismedia.com)
Actually, including sale price information in MLS records will improve privacy for home sellers and home buyers. (remonline.com)