Checking square-footage descriptions before approving listing copy
Ensure your Illinois property listing accurately reflects your home size by verifying square-footage data before authorizing final marketing copy.
The short answer
Confirming square footage requires distinguishing between precise measurements, such as those from an appraiser or tax record, and marketing estimates. Because listing copy must align with reality to avoid potential misrepresentation claims, sellers should verify any cited measurements against official documents rather than relying on assumed or rounded figures found in previous listings or informal drafts.
Source Verification for Measurements
Avoid using 'guesstimates' or listing measurements based on anecdotal memory. Rely on tax records, prior appraisals, or professional architectural plans to source your home's square footage. If you cannot confirm a number, omit it from the copy.
Planning Example: Create a checklist of sources. Label each piece of data 'Verified' or 'Estimate.' Only provide the 'Verified' data to your brokerage for the listing.
Distinguishing Between Living and Non-Living Space
Be clear about what constitutes living space versus unfinished areas like basements, attics, or garages. These spaces are often calculated differently in market analysis and can lead to discrepancies if combined improperly.
Ask a professional: 'Does this specific square footage calculation include the unfinished portion of the lower level?'
Legal Implications of Listing Copy
While marketing copy is not a warranty, providing false information can lead to disputes. The disclosure of material defects is a legal obligation, and inaccurate listing details could complicate your compliance with the Residential Real Property Disclosure Act if they mask a material condition.
Ensure your agent understands that marketing copy should not contradict disclosures.
Reviewing Drafts with Your Agent
Before approving the MLS listing, walk through the property while reading the draft copy. If the copy says '2,000 square feet of finished living space,' does that align with your verifiable records? If not, demand a correction.
Ask your agent: 'What data source was used to determine the square footage in this draft?'
Checklist
- Gather tax records or appraisal reports to confirm total square footage.
- Cross-reference the listed square footage against physical observations.
- Confirm that the draft copy distinguishes between finished and unfinished areas.
- Remove any unverified measurements from the listing advertisement.
- Obtain written confirmation from your agent on how the home size is being marketed.
Common questions
Can I simply reuse the square footage from when I bought the house?
It is safer to verify current data. Previous listings may contain errors or use calculation methods that differ from your current understanding or professional standards.
What if my agent disagrees with my measurement source?
Ask for clarification on their calculation source and consider having a licensed professional re-measure the property if a significant discrepancy remains.
Sources
- Illinois Residential Real Property Disclosure ActChecked October 12, 2026
- IEMA-OHS — Real estate radon guidanceChecked October 12, 2026
- IRS Publication 523 — Selling Your HomeChecked October 12, 2026
- EPA — Real estate lead-hazard disclosuresChecked October 12, 2026
- SQFT IO — Listing plans and termsChecked October 12, 2026
This guide is general educational content from SQFT IO, prepared with AI assistance. It is not legal, tax or loan advice. Talk with a licensed attorney, tax professional or lender about your situation. SQFT IO Illinois license 478.027617.