A Connecticut home’s advertised square footage should be treated as a sourced estimate, not a complete answer about its size, approved use or value. Before relying on it, separate above-grade from below-grade space, identify where the measurements came from, and investigate relevant municipal records. For a property with septic, bedroom claims need a separate review.
The brokerage standard I would set at Nomade is simple: verify and explain, rather than imply that an agent can certify. Clients deserve to know what a number includes, what supports it and what remains unresolved before that number influences a pricing or purchase decision.
That approach does not require treating every discrepancy as a problem. A listing, an appraisal and a municipal record can describe the same property differently because they serve different purposes. Good representation starts by understanding those differences.
1. Explain what the listing total includes
SmartMLS’s listing-entry guidance, updated June 3, 2025, says total living area combines the entered estimates for above-grade and below-grade heated square footage. Tax-record figures appear separately. When entered measurements differ from public records, an explanation field becomes available, but that explanation is visible only to SmartMLS staff. These are listing-entry instructions, not statewide market statistics. See the SmartMLS square-footage guidelines.
The practical implication is important: a buyer should not assume that a headline total represents entirely above-grade space. Nor should an agent assume that an explanation entered into an internal field has communicated the discrepancy to the client.
Before presenting a figure as a basis for comparison, I would ask an agent to document:
- The breakdown: above-grade and below-grade area, rather than only the combined total.
- The source: whether the figure comes from municipal records, a floor plan, an owner’s estimate or another identified source.
- The date and method: when available, when the measurement was prepared and what it includes.
- The uncertainty: any unexplained difference or area still awaiting verification.
For a seller, this means resisting the temptation to choose whichever document produces the largest number. For a buyer, it means asking for the breakdown before using square footage to compare competing properties. Precision about the source is more useful than confidence about an unexplained total.
2. Prepare clients for a differently organized appraisal
Fannie Mae and Freddie Mac’s UAD 3.6 appraisal guidance separates finished above-grade, finished below-grade, unfinished and nonstandard finished areas. The ANSI Reporting Requirements Job Aid, version 1.0, dated June 23, 2026, illustrates separate reporting for finished basement space.
Read alongside the SmartMLS guidance, this explains why two prominent figures may differ without establishing that either is erroneous: one may combine categories that the other separates. The first task is to compare definitions, then measurements. A different reporting category also does not, by itself, establish that a room has no value.
There is a timely training issue here. As of September 12, 2026, the published transition schedule permits UAD 2.6 or UAD 3.6 submissions during the January 26–November 1, 2026 period. Beginning November 2, 2026, new submissions to the Uniform Collateral Data Portal must use UAD 3.6, with separate transition treatment for qualifying legacy revisions. The August 18, 2026 transition announcement describes that schedule.
This is an appraisal-reporting transition, not a Connecticut building-code change or a mandate already in effect on September 12. Agents should ask the lender which reporting format applies to a particular assignment rather than make a blanket promise.
I would train agents to trace each area to its reporting category before discussing a discrepancy with a client. If clarification is needed on a lender-ordered appraisal, coordinate through the lender’s process. The objective is an accurate explanation, not pressure to produce a preferred number.
3. Use consistent figures when comparing homes
Hypothetical example: A home is advertised at 2,400 total square feet, comprising 1,800 above grade and 600 finished below grade. Assume an asking price of $720,000. Every figure in this example is invented to explain the arithmetic; none represents an observed Connecticut listing, sale or appraisal.
Dividing $720,000 by the combined 2,400 square feet produces $300 per square foot. Dividing the same price by the 1,800 above-grade square feet produces $400 per square foot. The house and price have not changed. Only the denominator has.
Now consider another hypothetical home with 2,400 square feet entirely above grade. Equal headline totals do not mean the homes offer the same distribution of space. A price-per-square-foot comparison that mixes those definitions can obscure the distinction instead of helping a buyer evaluate it.
Neither calculation establishes fair value. A useful comparison should identify the same area categories for each property, then consider condition, layout, location and other relevant differences. Any valuation adjustment needs property-specific support, not an assumed basement discount or premium.
The buyer’s practical needs matter too. Describe observable features such as stairs, ceiling configuration, natural light and access to the yard. Let the buyer decide how those features support everyday use, while keeping any approval questions separate. A lower-level room may be useful without being interchangeable with an upstairs room.
4. Follow the record trail to town hall
Municipal research should be specific to the property and the town’s record system. Westport offers address-based permit and inspection searches and a separate archive for older certificates of occupancy through its Building Department resources. These municipal pages are undated; the supplied research reviewed them on September 12, 2026.
Westport’s online permit portal information identifies February 1, 2020 as the start of current-system records. Imported building records cover March 19, 1991 through January 31, 2020, with limited information. Those dates describe Westport’s system, not every Connecticut municipality’s records.
That limitation should change how an agent communicates. “Nothing appeared in the online search” is not the same conclusion as “the work was unpermitted.” An incomplete result should trigger follow-up with the department, including a request for relevant older records.
Likewise, finding a permit entry should not end the inquiry. Request the available permit scope, inspection results and completion documentation, then ask the appropriate official whether those records address the space and use being represented. A document concerning one project may not resolve questions about a later alteration.
Make the request concrete: identify the address, floor, room and known approximate renovation date. For example, ask for records concerning the finished lower level rather than requesting only confirmation of the house’s total area.
In another Connecticut town, begin with that municipality’s building department and ask how its current and archived records are organized. The tradeoff is time: research can complicate a listing schedule. Starting before photography and marketing gives the seller more room to resolve uncertainty without asking a buyer to rely on an unsupported description.
5. Keep bedroom claims separate from square footage
A room’s area does not settle whether it can be represented or used as a bedroom. On a Connecticut property served by a residential septic system, there is an additional design-capacity issue.
Connecticut Department of Public Health guidance explains that residential septic sizing relates to bedroom count and that review considers potential bedrooms, including some rooms labeled for other uses. Its undated Determining Design Sewage Flow guidance does not establish whether any particular room is approved as a bedroom.
That distinction matters when a listing describes a den, office or finished lower-level room as an easy additional bedroom. Renaming the room does not resolve the septic review question. Neither does placing a bed in it.
Before a buyer relies on an additional bedroom, request the available septic design and approval records and ask the local health department or district how the proposed layout and use should be evaluated. Direct separate building and zoning questions to the appropriate municipal officials.
For sellers, objective wording is the better starting point: describe a documented finished room’s location and physical features without promising an additional approved bedroom. For buyers who need a specific bedroom count, treat unresolved approval as a decision-critical issue—not something a larger square-footage total can offset.
6. Make verification a client-service discipline
The strongest brokerage practice is not simply collecting more documents. It is making the documents understandable at the moment a client needs to decide. I would propose a four-stage standard for Nomade:
- Before marketing or comparing: assemble a short source record showing each square-footage figure, its categories and supporting document. Identify conflicts instead of silently choosing one total.
- Before an offer decision: establish which unresolved facts could change the client’s choice. If an additional bedroom is essential, prioritize that issue. Discuss appropriate timing and contractual protections with the client’s attorney rather than assuming verification can wait.
- When records conflict: assign the next step. A measurement question may need a qualified measuring professional or appraiser; a use question needs the relevant municipal official. Clarify the purpose and reporting method of any new measurement.
- Before a consequential deadline: give the client a written summary of what is documented, what remains uncertain and who is responsible for follow-up. Do not describe a pending review as an approval.
For agent development, a useful training exercise is to reconcile a sample listing, floor plan, appraisal and municipal record. The agent should explain not just which totals differ, but why, and identify the questions those documents cannot answer.
There are real tradeoffs. Additional measurement or record research may involve expense and delay. Proceeding with unresolved information leaves the client with uncertainty. The broker’s role is to make that choice explicit, coordinate qualified help and avoid promising a particular approval, appraisal result or financing outcome.
A polished presentation is not a substitute for that work. The service standard should be whether the client understands the evidence well enough to make an informed decision.
FAQ
When the tax record shows less space
A lower tax-record figure does not by itself prove an error or unpermitted work. Compare what each figure includes, identify the measurement sources and investigate relevant municipal records before drawing a conclusion.
When finished basement space appears separately
Separate appraisal reporting does not mean the space automatically has no value. Classification and valuation are different tasks. Seek property-specific clarification rather than applying a blanket percentage adjustment.
When a floor plan shows an extra bedroom
Do not treat a floor-plan label as municipal approval. Verify the relevant records and consult local officials, including the health department or district when septic capacity is involved.
Sources
SmartMLS square-footage guidance, June 3, 2025; UAD ANSI job aid, June 23, 2026; UAD transition announcement, August 18, 2026; Westport Building Department; Westport permit portal information; Connecticut DPH sewage-flow guidance.
Preparing to buy or sell a Connecticut home with conflicting space descriptions? Contact Nomade to discuss the records and professional follow-up to prioritize before your next decision.