Zillow: The Zillow Home Value Index has now fallen 26% since its peak in June 2006. That’s more than the 25.9% decline in the Depression-era years between 1928 and 1933.November marked the 53rd consecutive month of home value declines, with the Zillow Home Value Index (ZHVI) falling 0.8% from October to November, and falling 5.1% year-over-year.