Zillow home value index (zhvi): A measure of the typical home value and market changes across a given region and housing type. Verkkobeginning with publication of november 2019 data, the flagship zillow home value index (zhvi) is being calculated using a new methodology. Verkkothe zillow home value index or zhvi is a smoothed, seasonally adjusted measure of the typical home value and market changes across a given region and housing. Verkkothe zillow home value index or zhvi is a smoothed, seasonally adjusted measure of the typical home value and market changes across a given region and housing. Verkkothe zillow home value index can also be used to track the median value of homes in a region over time. You can look up the percentage.