A sign that an appraisal report may be overvaluing a property is that the:

A mismatch between the subject property address and the house number photographed by the appraiser is a clear red flag. It suggests the photo may not be of the actual property being appraised, raising serious questions about the validity of the appraisal and possible overvaluation or fraud.

“Warning signs of appraisal fraud include… property photos that do not match the address or appearance of the subject property.”

— Fannie Mae Appraiser Independence Requirements (AIR); SAFE MLO National Test Study Guide