Imagine a new sale in the neighborhood. This property sells above all others, and now it’s a comp, right? Well, not necessarily. I had a neighbor ask me about this after a sale was reported to have closed surprisingly high, and I had a related conversation with someone alleging investor fraud from inflated comps. Let’s talk about it.

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12/9/25 Downtown Regional MLS Meeting
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1/14/26 Windermere EDH / Placerville
2/11/26 San Joaquin County presentation (TBA)

ONE SALE DOESN’T CHANGE EVERYTHING
I get the concept that one new higher sale can pull up the rest of the market, but just because it closed doesn’t mean it’s a good reflection of value. In other words, a lofty sale doesn’t automatically change buyer behavior, pull up the rest of the market, or reflect actual value.
WHAT IF I SOLD MY HOUSE FOR ONE DOLLAR?
Imagine if I sold my house for $1. Does that mean the rest of the market will bend toward my sale? Nope. The same holds true if I sold my house for 25% over market value. This “lone ranger” sale doesn’t become the new comp for the rest of the neighborhood. The big truth here is just because someone overpaid or underpaid doesn’t mean it reflects the market.

BRO, BIG INVESTORS ARE CREATING HIGHER COMPS
On a related note, I talked with someone recently about investment fund activity. The alleged scenario was that a big investor purchased an entire neighborhood at a discount, and then sold three homes at an inflated level to an LLC that was owned by the same investor. The idea is these new higher “comps” will now be used as the value basis for other properties. Look, I get the idea, but there are some issues here:
1) Buyers aren’t stupid: Buyers don’t automatically consider higher sales as comps (see Zillow example below). In other words, buyers are discerning, and they aren’t going to arbitrarily accept a high sale as a new level of market value if that’s not what the data suggests. By the way, I’m not saying fraud cannot exist or that buyers don’t sometimes pay bonehead prices.
2) Private comps are rarely ever used: Appraisers rarely use private sales as comps, and they shouldn’t be turning a blind eye to why one “comp” sold so much higher. In fact, appraisers almost always steer clear of using private residential sales at all unless they can verify the details of the transaction. For instance, I wouldn’t blindly use a private sale that closed at $800,000 when all other public comps on MLS closed around $700,000. What if the one $800,000 sale included a car in the garage and fat concessions that boosted the price? One more thing. Appraisers and agents might not literally even know about private sales off MLS unless doing a deeper search of sales through tax records instead of MLS.
3) Is this fake news, or did it happen? Did this scenario actually happen in a real place, or is it just an anecdote for social media to get clicks? If it’s real, let’s look at the neighborhood and explore whether other buyers ended up paying more for homes by relying on the higher “comps.” Look, I’m not an investor fanboy here at all, and fraud should be exposed, but I find there are often unsubstantiated claims like this that ignore how comps work in a marketplace. I’m not saying investors get a pass at all, but I think they’re an easy target to blame our disappointment about a lack of affordability. In short, if this is real, speak up in the comments about locations and proof of fraud. Thanks.
4) Zillow did not create higher comps: This reminds me about supposed fraud when Zillow was an iBuyer. There was a viral accusation on TikTok in 2021 that Zillow overpaid to create new higher comps. However, Zillow was buying so many homes off-market, so appraisers and everyone else wouldn’t even be using those private sales as comps. Yet, when Zillow did overpay on MLS, those higher “comps” weren’t pulling up the rest of the market. The truth is buyers don’t care what a seller paid, which is why buyers were regularly getting into contract below Zillow’s acquisition price. So, actual market activity refuted this viral claim. Again, I’m not speaking from the perspective of a big investor or Zillow fanboy, so save your hate mail. Let’s critique examples like this and figure out where to direct our disappointment.

THE BIG TAKEAWAY: WE NEED TO WEIGH THE COMPS
Here’s the big takeaway. Is the new sale a comp? Does the property reflect what actual buyers are willing to pay? Was the price too high, too low, or just about right? In real estate, we have to weigh the comps by asking questions like this. We don’t just arbitrarily accept a closed sale as gospel. I find many sellers believe this to be true when a sale closes really high, but then they don’t believe it when something closes too low. So, maybe this is more about wishful thinking. Ultimately, if it looks like it closed too high or low, then we might not use the sale at all, or maybe we won’t give it much weight in our final opinion of value (rightly so).
If a sale looks out of sync with value, it’s time to ask some questions. Was it a desperate buyer needing to quickly complete a 1031 Exchange? Could it have been an out-of-town buyer who didn’t know the market? What if someone was purchasing next to an aging parent and paid more to secure the deal? Was it a seller in distress that explains a lower price? Did the agent price it too low?
One of the realities of comp selection is we need to ask questions like this, and the answers can help us figure out if we need to give a “comp” more or less weight in our valuation. It’s almost like we are appraising the comps too rather than looking at nothing but the closed price with tunnel vision. What is the story behind the price? That’s the more interesting and relevant question when pulling comps and trying to figure out value.
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LEAVING COMMENTS: The captcha is not working perfectly. If you open up a new browser, that should solve the issue. It’s been a problem to comment when clicking from my weekly email. My apologies.
Questions: How do you weigh comps and understand if something sold for too much or too little? What stands out to you above?
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