In the sales comparison approach in real estate appraisal, if the comparable property is superior to the subject property in some way, an upward adjustment is typically made to the sale price of the comparable property. This adjustment is necessary to account for the superior features or characteristics of the comparable property when estimating the value of the subject property.
The idea behind this adjustment is to bring the comparable property's value more in line with the subject property by adding an amount that represents the value of the superior feature. For example, if the comparable property has a larger lot size or more amenities than the subject property, an upward adjustment is made to reflect the additional value associated with those features.
Conversely, if the comparable property is inferior in some way, a downward adjustment would be made to account for the differences. The goal is to make the comparable property as similar as possible to the subject property so that a fair and accurate estimate of the subject property's value can be obtained through the comparison process.