Appraiser - Grid Time Adjustments

HouseCanary automatically pre-fills time adjustments in the Grid.  These adjustments are indicated by the yellow graph icon . 

If you delete the adjustment, you can re-apply it by clicking SUGGEST in the lower right corner.

Time Adjustment Methodology

HouseCanary mathematically estimates a time adjustment for comparable properties. Detailed steps are below.

Calculation Details:

1. HouseCanary calculates a proprietary set of home price indices for each zip code and property type. These home price indices measure the change in the zip code's housing market on a monthly basis.
2. For each month between the comparable property's date of sale and the current date, the price is adjusted by a percentage change for that indicated by the home price indices.
3. The difference between the sale price and the final time adjusted price is used as the time adjustment.