Every lender is different and may ask for things that they deem necessary. OR the software that they are using flags it.
That being said, typically fannie only wants additional comments when there is a over supply.
The appraiser’s analysis of a property must take into consideration all factors that affect value. Because Fannie
Mae purchases loans in all markets, this is particularly important for neighborhoods experiencing significant
fluctuations in property values including sub-markets for particular types of housing within the neighborhood.
Therefore, lenders must confirm the appraiser analyzes listings and contract sales as well as closed or settled Published June 3, 2026
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sales, and uses the most recent and similar sales available as part of the sales comparison approach, with
particular attention to sales or financing concessions in neighborhoods that are experiencing either declining
property values, an over-supply of properties, or marketing times over six months.
The appraiser must provide
their conclusions for the reasons a neighborhood is experiencing declining property values, an over-supply of
properties, or marketing times over six months.
When completing the One-Unit Housing Trends portion of the Neighborhood section of the appraisal report, the
trends must be reflective of those properties deemed to be competitive to the property being appraised. If the
neighborhood contains properties that are truly competitive (that is, market participants make no distinction
between the properties), then all the properties within the neighborhood would be reflected in the One-Unit
Housing Trends section. The appraiser's analysis of the property value housing trend section (increasing, stable,
declining) must include factual data from information sources such as, but not limited to, market data, home
price indices, multiple listing services, public records, and/or models. The trend indicated in the appraisal report
must reflect the overall movement of the market based on a minimum of 12 months of data.