Total appraisal adjustment activity on a comparable sale before positive and negative changes offset.
Gross adjustment is the total appraisal adjustment activity on a comparable sale before positive and negative changes offset.
Gross adjustment matters because it can reveal how different a comparable sale really is from the subject property. A comp may have a modest net adjustment but still require many large changes to make it comparable.
It also matters during mortgage review because heavy adjustment activity may raise questions about whether the selected sale is the best available evidence. A high gross adjustment does not automatically make a comp unusable, and a single percentage is not a universal pass/fail rule. The pattern, market support, comparable availability, and report explanation matter together.
Borrowers may see gross adjustment discussed in the appraisal grid, review comments, or lender questions about comp quality.
The term becomes practical when the lender, appraiser, or borrower is evaluating whether the selected Comparable Sales (Comps) provide reliable support for the Appraised Value. It is most useful beside the net adjustment and the appraiser’s explanation of why the sale was selected.
| Question | Why gross adjustment helps |
|---|---|
| How much had to be changed? | Shows total adjustment activity |
| Were the comps very different? | Large gross adjustments can suggest weaker similarity |
| Did adjustments cancel out? | Compare gross adjustment with Net Adjustment |
Gross adjustment adds the absolute value of each line-item adjustment:
If the report expresses it as a percentage of the comparable’s sale price:
Using absolute values means both upward and downward adjustments count as activity. They do not cancel.
A $400,000 comp receives the following adjustments:
| Difference | Signed adjustment |
|---|---|
| Smaller living area | +$20,000 |
| Superior condition | -$12,000 |
| Better location | -$6,000 |
Gross adjustment is $20,000 + $12,000 + $6,000 = $38,000, or 9.5% of the comp’s sale price. Net adjustment is only +$2,000. The gross figure reveals the activity hidden by that small net result.
Gross adjustment is a diagnostic, not a verdict. Reviewers should ask:
A unique property may require greater adjustments because truly similar sales do not exist. In that case, the report should explain the search and why the selected sales remain the best available indicators.
Adjustments are applied to the comparable, not to the subject. If a comp is inferior on a value-relevant feature, it generally receives an upward adjustment. If it is superior, it generally receives a downward adjustment. Gross adjustment counts the magnitude either way.
Gross adjustment differs from Net Adjustment because gross adjustment counts total adjustment activity before offsetting, while net adjustment shows the final direction after offsetting.
It differs from Appraisal Adjustment because gross adjustment summarizes multiple adjustments rather than describing a single line-item change.
It also differs from Comparable Sale Selection because selection is the choice of comps, while gross adjustment helps judge how much work those comps needed after selection.
It differs from Sales Comparison Grid because the grid displays the line items; gross adjustment summarizes their total magnitude for one comparable.