By Joseph T. Ellington Jr. – Licensed Residential Appraiser, Capital Valuations.
Last updated
Agents: verify living area before it goes in the MLS
Practical answer: Trace the advertised area to a dated measurement and a stated method before publishing it. Do not increase a number just because a rounded figure looks better in marketing. A measurement sketch should make it possible to see which parts of the house were included and which were reported separately.
How a small rounding habit becomes a larger discrepancy
Joe regularly encounters different figures for the same house in public records and past listings. One recurring concern is a number being carried forward and rounded again without a new measurement. To illustrate the problem, suppose a sketch supports 1,570 square feet. One listing shows 1,600; a later listing shows 1,620; another shows 1,650. The house has not gained 80 square feet simply because the advertised number changed.
This is an illustrative sequence based on a recurring concern, not a verified chain of sales or an allegation about particular agents. Public records and listing data can also differ for legitimate reasons: the dates differ, a finished addition was completed, a category was defined differently, or an old sketch was incomplete. The first step is to investigate the source.
What should a useful measurement record show?
- The property measured, the date and the reporting method.
- A sketch with exterior dimensions and room labels.
- Square-footage calculations and separate identification of garages, porches, decks and other areas that do not qualify as living area.
- Any access limitation or feature that needs explanation, such as a sloped ceiling, an addition or a space reached through an unfinished area.
For applicable ANSI-based appraisal reporting, dimensions and final area are different measurements: dimensions are recorded to the nearest tenth of a foot, while final area is reported to the nearest whole square foot. Rounding a marketing total upward by tens of square feet is a different practice. See Fannie Mae’s measurement guidance for its assignment-specific requirements.
Resolve the difference before relying on it
Ask whether the compared figures include the same spaces. A listing that combines finished basement area with above-grade area cannot be compared directly with a report that lists those categories separately. Review the dimensions and arithmetic before assuming that either source is right. If the listing is already active, follow the applicable MLS procedures for correcting the data and documenting the source.
A size correction does not translate automatically into a value correction using the home’s overall price per square foot. That ratio also reflects land, condition, location and other features. An appraisal considers market support for the relevant difference.
Joe’s home measuring service provides a PDF sketch with exterior dimensions, room labels and area calculations. Interior dimensions can be requested. Tell Joe the property size, deadline and intended use so the fee and deliverable can be confirmed before the visit.
A listing’s square-footage figure can shape a buyer’s search and price expectations. When the figure is sourced from tax records, builder plans or an owner, identify the source and check whether it describes the actual finished dwelling. An overstated number can create confusion when a later appraisal uses a different method. The goal is accurate marketing, not a claim that a single standard governs every MLS entry.
A pre-listing area checklist
- Record the source, date and any caveat for the area figure.
- Compare visible additions, finished rooms, garage conversions and basements with that source.
- Ask whether the figure includes above-grade finished area only or mixes other spaces.
- When a discrepancy is material, arrange a professional home measurement and retain the agreed documentation.
- Describe separate areas clearly in marketing, following MLS rules and brokerage guidance.
Check the evidence and the assignment scope before relying on a reported figure.
Why an appraisal number can be lower without a valuation mistake
A tax-card figure may be outdated or use a different convention. A finished room below grade may be valuable but categorized separately from above-grade finished area in an applicable lender report. Fannie Mae’s area-reporting guidance addresses this distinction and ANSI Z765-2021 for covered assignments. Read our ANSI guide and discrepancy checklist before assuming a report is wrong.
| Document | Useful context |
|---|---|
| Builder plan | Design dimensions; confirm construction matches |
| Assessor card | Public record, possibly dated or defined differently |
| Professional sketch | Measured area and stated method |
| Permits | Dates and scope of additions or conversions |
If the lender’s appraisal appears factually wrong, provide the actual evidence to the lender through its ROV process. Do not tell an appraiser the number needed to make a transaction work. For a private pre-listing appraisal in Hampton Roads, contact Capital Valuations with the property address and records.
Share this article: 
