Why an Appraisal Can’t Argue With a Well-Marketed Auction

"Has this home been appraised?"

I get asked that a lot. And the honest answer is usually no — because we're not trying to guess what the house is worth. We're about to find out.

Here's the thing about an appraisal: it's an educated guess based on the past performance of surrounding properties. I want to be clear I'm not knocking appraisers — they have a hard job, they have to follow strict rules, and a good appraiser can make or break a deal. That's not a bad thing. It's just a different thing than what we do.

An appraisal looks backward. It says, "Based on what similar homes nearby have sold for, here's what we believe this one should be worth today." A well-marketed auction does something different. It sets the market.

And here's the part that surprises people: a well-marketed auction is something an appraiser won't go against. The appraiser understands an auction sets fair market value.

Notice I didn't say just any absolute auction. I said well marketed. That's the whole trick.

An auctioneer can't show up, throw a sign in the yard, and call the property sold five minutes later and call that fair market value. That's not price discovery — that's a guess with an audience. We typically market a property for about four weeks — sometimes a little shorter, sometimes a little longer — casting as wide a net as we can so buyers actually know it's for sale. That's the whole point: so that when the gavel falls, we've asked the whole market — not just the three people who happened to drive by.

So when someone asks how we know what a property is worth without an appraisal, the answer is simple: the bidders determine the value. At the moment it sells, that's what it's worth. The next day it could be more, it could be less. But at that moment, with real buyers competing for it, that number is about as honest as a number gets.

It Turns Out We're Not Alone in Thinking This

I've been to conferences over the years where I've heard about how New Zealand and Australia handle auctions, and it turns out their real estate regulators draw the exact same line.

Consumer Affairs Victoria describes a public auction as a sale determined by competitive bidding among prospective buyers. Straightforward.

New Zealand's Real Estate Authority is even more useful for this conversation, because it defines both terms side by side. An appraisal, per the REA glossary, is an assessment of a property's likely sale price, based on market conditions and recent comparable sales. An auction, on the other hand, is defined as the sale method where buyers publicly bid until the highest price is reached.

The appraisal looks at the evidence and predicts. The auction doesn't predict — it discovers.

Australia has leaned into that idea for a long time. There's academic research (Frino, Lepone, Mollica & Vassallo, 2010) that looked at home sales across five major Australian capital cities and found that houses sold at auction generally commanded higher prices than comparable private-treaty sales, even after the researchers controlled for the fact that certain kinds of sellers gravitate toward auction in the first place. Worth noting — it's not the only word on the subject; a later study looking at Sydney and Christchurch found no significant difference once self-selection was handled differently. Real estate research rarely agrees with itself completely. But the general pattern — competitively bid auctions holding their own or outperforming negotiated ones — shows up often enough that it's not just an American auctioneer's sales pitch.

How Auctions Actually Work Here in the US

Here's a misconception I run into a lot: people think an auction means a distressed property, a desperate seller, or something wrong with the house. That's not it at all. An auction sets the terms up front, and everyone bidding is on a level playing field — same information, same deadline, same rules, no one getting a side deal in a back room.

What if you need a loan? Go talk to your bank before the auction, not after. Tell them what you're wanting to do. And here's the thing — we just established that a well-marketed auction sets fair market value, so "will it appraise for the contract amount" isn't really the open question it feels like. The auction already told everyone, including the appraiser, what the property is worth.

What about an inspection? Get it done before the auction, not after. In a typical negotiated sale, the inspection happens after a price is agreed to, and then the buyer and seller negotiate repairs or a credit based on what turns up. An auction doesn't work that way — there's no renegotiating after the gavel falls. So if you want to know what you're bidding on, line up your inspection while the property is still in the marketing period, before you're committed.

As a general idea of cost, a standard home inspection in Southern Illinois tends to run somewhere in the $300–$600 range depending on the size of the home, with rural properties sometimes carrying a small travel surcharge. Add-ons like radon testing, septic and well checks, or a sewer scope run extra on top of that. Every inspector prices a little differently, so it's worth calling around, but that gives you a ballpark for budgeting before auction day.

What about earnest money? Our standard is 10% of the contract price, due at the time of sale. If you don't have that much set aside, that's not a judgment — it just means you've got some saving to do before you're ready to bid. The earnest money goes toward the purchase of the real property.

And yes, I keep saying "real property" instead of "home" — that's on purpose. Auctions aren't just houses. It's land, farm ground, commercial buildings, lots — all kinds of real estate cross the auction block, so "real property" is just the accurate word for all of it.

Happy Bidding!

Kara C. Belcher-Miller