Pricing a home or making an offer often feels like a guessing game. Buyers look at recent sales and worry they are overpaying. Sellers look at what their neighbor got six months ago and expect the same result. Both sides are looking at the same numbers, but they are drawing entirely different conclusions.
The problem is that a comparable sale, or comp, is not just any house down the street that sold recently. A true comp is a property that a rational buyer would consider a direct substitute for the home in question.
Once you understand how to read comps the way an appraiser does, the emotional tug-of-war over price starts to fade. The number that matters is not the listing price of the house next door. It is the adjusted value of the most relevant, recent sales.
The 2026 Market Reality
The housing market is finding a new equilibrium. Data from the Federal Housing Finance Agency (FHFA) shows that U.S. house prices rose a modest 1.7% year-over-year through the first quarter of 2026. Inventory is up, and homes are taking slightly longer to sell.
This shift means the comps from last spring are no longer a reliable baseline. When the market is moving, appraisers rely heavily on the most recent 30 to 90 days of sales data. A home that sold for top dollar six months ago reflects a different market with different buyer pressures.
How Appraisers Actually Pull Comps
Many people assume appraisers just average the sale prices of three nearby homes. The reality is far more rigorous than that.
Appraisers start by finding homes in the same market area with similar physical characteristics, such as square footage, bedroom count, and condition. Then, they make market-supported adjustments for the differences. If a comp has a renovated kitchen and the subject property does not, the appraiser adjusts the comp's price downward to reflect what it would have sold for without the update.
According to appraisal industry standards, if a comparable sale requires massive adjustments—often flagged when net adjustments exceed 15% of the sale price—it may not be a reliable comp at all. The goal is to find homes that require the fewest adjustments.
Why 30 Days Matters More Than Six Months
In a cooling (normalizing) housing market, time is a crucial factor. If a seller prices their home based on a comp from eight months ago, they may be overshooting the current market reality. In contrast, if a buyer bases their offer on a distressed sale from last year, they may be lowballing.
Appraisers prefer sales within the prior six months, but in 2026, the most recent 30 days provide the clearest picture of what buyers are actually willing to pay today. If active listings are sitting and recent pendings are closing below asking price, that is the true metric of current value.
Common Comp Mistakes to Avoid
Both buyers and sellers frequently make the same mistakes when looking at comps:
Ignoring concessions: If a comp sold for $500,000 but the seller gave a $15,000 closing cost credit, the true economic value of that sale was $485,000. Appraisers adjust for these concessions.
Focusing only on price per square foot: This metric is too blunt. It ignores differences in lot size, condition, and functional layout.
Cherry-picking the highest or lowest sales: Sellers tend to focus on the highest sale in the neighborhood, while buyers focus on the lowest. Neither approach reflects fair market value.
How to Make the Call
Whether you are deciding on a listing price or writing an offer, ask yourself these questions:
Are the comps I am looking at truly similar in size, condition, and location?
Did these homes sell in the last 30 to 90 days, or am I relying on outdated data?
Have I accounted for any seller concessions that might have inflated the recorded sale price?
Is this price based on market evidence, or is it based on what I hope the home is worth?
Is the home in a favorable or unfavorable school district?
Are there any neighborhood nuisances present, such as a freeway close by, a landfill, or is it in a high-noise zone due to an airport flight path?
In the past three to six months, have any homes within a 1-mile radius sold for less than expected due to foreclosure, distress, or a cooling market?
The bottom line is that comps are not a weapon to use against the other side. They are a shared set of facts. When buyers and sellers look at the same, accurate data, deals come together faster and with less friction.
Need help pulling the right data for your neighborhood? Connect with a local market expert from AddressUSA.