Do You Know Your Home’s Square Footage Before Selling in Indiana?

Why Knowing Your Home’s Square Footage Before Selling Matters

Knowing your home’s square footage before selling protects both your price and your sale, and most sellers never think to check it. The number on your tax record or your old listing can be wrong, because county records lag behind additions, finished spaces, and permits, and a bad number can copy forward from one listing to the next. Since price gets measured per square foot and an appraiser measures your home to a national standard, a wrong figure can cost you money, stall your appraisal, or even open the door to a misrepresentation claim. That’s why it’s worth confirming the number with a professional measurement before you list.

By René Hauck, REALTOR® | July 6, 2026

Here’s a number almost no seller questions: the square footage of their own home. You’ve lived there for years, so of course you know how big it is. Except the figure you have in your head almost always came from somewhere else, a tax card, a listing from when you bought the place, or a builder’s brochure, and any one of those can be off by a lot. When I sit down with Hendricks County sellers, this is one of the first things I quietly double-check, because it touches your price, your appraisal, and your paperwork all at once.

Where Your Square Footage Number Actually Comes From

Most listings pull square footage straight from the county assessor’s record. That feels official, but assessor records can be wrong more often than people expect, so it’s worth confirming yours.

The reasons are ordinary. Sometimes the original builder turned in loose numbers when the home went up. Sometimes an owner finished a bonus room, enclosed a porch, or added on, and the county record was never updated. Sometimes permits were pulled but the record lagged, and sometimes a space was finished without a permit at all. Even measuring style matters, since a home measured to the outside of the walls comes out larger than one measured inside, and thick walls add up.

Then there’s the copy-forward problem. A wrong number on one listing tends to ride along to the next sale, and the one after that, because the figure gets reused instead of re-measured. So the square footage on that listing from the day you bought your home might have been wrong for two owners already.

Here in Hendricks County, the assessor keeps a property record card for your home that includes its square footage and finished basement or attic space. You can look it up, and if it’s wrong, the assessor’s office will work with you to correct it. That matters, because whatever sits on that card usually flows straight into your MIBOR listing.

How the Wrong Number Costs You at Sale

Let me give you a real example. Not long ago I was getting ready to list a home, so I pulled up the previous MLS listing, and it showed 2,300 square feet. The county tax record said 2,500. Then my sellers pulled out an appraisal they’d had done, and it measured the home at 2,700. Three sources, three different numbers, and a 400 square foot spread from lowest to highest. We went with the appraiser’s 2,700, since it was the most recent professional measurement, and the old 2,300 on that earlier listing turned out to be a plain error.

That gap matters more than it looks. At the low number, the home would have read as smaller and pricier per square foot than it truly was, so buyers comparing it to real 2,300 square foot homes might have passed thinking it was overpriced. It would have shaped both the list price and the offers we’d expect. A buyer who set their search for a minimum of 2,500 square feet would never have seen the home at all. One wrong number can quietly shrink your pool of buyers and pull down your price before a single showing.

Square footage moves your price in two directions, and both can hurt.

Buyers and agents judge value partly by price per square foot. If your recorded size is smaller than your home really is, your price per square foot looks high, and your home reads as overpriced next to the competition even when it isn’t. You could leave real money on the table without ever knowing why showings felt slow. Getting the size right is part of landing on the correct list price in the first place, which I dig into in my guide to pricing your Indianapolis home to sell.

The reverse is every bit as costly. If your marketed size is larger than what the appraiser actually counts, the appraisal can come in under your contract price, and now you’re renegotiating or watching a deal wobble. Listings built on an accurate, measured number tend to sell faster and closer to asking, because nothing falls apart at the appraisal.

There’s a wrinkle here that trips up a lot of Indiana sellers with finished basements. Appraisers follow a national measuring standard called ANSI, which Fannie Mae has required since 2022, and under that standard only finished, above-grade space counts as gross living area. If any part of a finished space sits below ground level, the whole area is treated as below grade and left out of that main number. So your beautifully finished basement, full bath and nine-foot ceilings and all, does not get added into the square footage an appraiser uses. It still adds value, usually valued at somewhere around half to three-quarters of above-grade space per square foot, but it gets counted separately. If you fold that basement into one big square-footage figure on your listing, your marketed size won’t match the appraiser’s, and that gap is exactly where deals get bumpy.

Why Square Footage Is a Disclosure Issue, Not Only Marketing

This is the part sellers rarely see coming. Square footage isn’t only a marketing detail, it’s a material fact. Once a number is stated in your listing, it’s expected to be accurate.

Knowingly marketing a home as bigger than it is can expose you to claims of misrepresentation, and that’s the kind of thing that turns a closed sale into a legal headache. It runs on the same current-actual-knowledge idea that guides the rest of Indiana’s seller disclosure: you’re responsible for what you know. That’s why I’d never want a seller to inflate a number and hope nobody measures.

The safe path is straightforward. Use a measured, accurate figure, and note where it came from, or mark the square footage as approximate and invite the buyer to verify. Honest and accurate protects you, and it costs you nothing but a little diligence up front. If you want to talk through how your specific numbers look before we list, let’s go over it together.

What to Do Before You List

The fix is quicker and cheaper than most sellers assume.

Start by pulling your Hendricks County property record card and comparing it to reality. If the finished space, added rooms, or overall size look off, you’ve found your first issue. From there, the cleanest move is a professional measurement. A standalone measuring or floor-plan service usually runs about $100 to $200 and gives you an accurate, above-grade number measured to the standard an appraiser will use. A full appraisal does the same thing and more, but it costs more, around $350 to $600, so it’s overkill if all you need is the size.

Once you have the correct number, two things happen. You can ask the assessor to fix the county record, and we can market your home at its true size with the finished basement broken out separately, so your listing and the appraisal tell the same story. That alignment is what keeps a sale smooth from offer to closing.

For downsizers especially, getting the size and the price right up front matters, because it feeds straight into your net proceeds and your next move. I walk through that math in my piece on calculating home equity when downsizing, and you can always check current pricing in the latest Hendricks County market stats.

None of this is complicated, and it’s not a reason to stress. It’s a small, smart step that protects your price and your peace of mind. Confirm the number, market it honestly, and you take one of the quietest deal-killers off the table before it ever shows up.

Curious what your home is truly worth in today’s Hendricks County market, measured correctly? I’m happy to put together a personalized home valuation, no pressure and no obligation. Reach out here or call/text 317-987-7068.

Want to know what past clients say about working with me? Read my reviews on Google, Zillow, and Realtor.com.

Frequently Asked Questions

Is the square footage on my tax record accurate?

Not always. County assessor records can be off because of building errors, updates that were never recorded, unpermitted finished space, or different measuring methods. Tax records are a starting point, not the final word, so if you’re about to sell, it’s worth confirming the number with a professional measurement.

Does a finished basement count in my home’s square footage?

Usually not in the main number. Appraisers follow the ANSI standard, which counts only finished, above-grade space as gross living area, so a below-grade basement is left out even when it’s beautifully finished. It still adds value, it only gets counted separately. Want help presenting your basement the right way? Send me a message and we’ll map it out.

How much does it cost to measure my home before selling?

A standalone measuring or floor-plan service generally runs about $100 to $200 for a typical home. A full appraisal costs more, around $350 to $600, and includes a value opinion on top of the measurement. If all you need is an accurate size, the measuring service is the cheaper route.

Can wrong square footage really affect my sale price?

Yes. Buyers compare homes by price per square foot, so a number that’s too low can make you look overpriced, and a number that’s too high can push the appraisal under your contract price. An accurate figure keeps your pricing and your appraisal in sync, which is exactly what I help sellers line up before we list.

What happens if the square footage on my listing turns out to be wrong?

Since square footage is a material fact, an inflated number can lead to a misrepresentation claim and, at worst, an unwound sale. The way to stay protected is to use a measured, accurate figure or clearly mark it as approximate for the buyer to verify, and never knowingly overstate the size.