Should you list this fall in Grand Rapids? The honest seasonal math

Search "best time to sell your house" and you'll find a hundred agents telling you the same comforting thing: fall is a hidden gem, fewer listings, more serious buyers, don't wait for spring.

I'd rather show you the data first, even though it doesn't say that.

What the numbers actually say

ATTOM, a national property-data company, looked at more than 52 million home sales from 2015 through 2025 and measured, month by month, how much homes sold for above their automated estimate. That measure is worth pausing on, because it's the same kind of number I picked apart in the four prices every house has — a computer's guess from public records. What this study asks is: in which months do real buyers most exceed the computer?

One thing to be clear about before the chart: this measures sale price against the computer's estimate — not against your asking price, which should come from real comparable sales you and your agent work through together. It is not saying homes sell 10% over list. It's saying that in some months, buyers beat the algorithm by more than in others.

The answer is a clean seasonal arc.

March leads at 10.7%. April and May follow at 10.2%. Then it slides through summer to a floor of 8.0% in September and 7.9% in October — before ticking back up to 9.1% by December. Every month of the year lands above the estimate. The question is only by how much.

Call the peak-to-floor gap 2.8 percentage points — March's 10.7% against October's 7.9%. On a Grand Rapids home near the city's median, that's somewhere around $9,400. Not a rounding error, and not something an honest agent should wave away because fall listings are convenient for them.

So if the only thing you care about is squeezing out the last dollar, and your life is genuinely flexible: spring is the statistically better bet. That's the honest headline.

Now the part the headline misses

That number is a national average across a decade. It is not a forecast for your house on your street. Three things can outweigh it.

Your competition matters more than your calendar. Premiums are a function of how many buyers (demand) chase how few homes (supply). Grand Rapids has been running historically thin — economists at Grand Valley State University's Seidman College of Business put the region at a 1.4-month supply of homes in 2025, and the Greater Regional Alliance of REALTORS® (GRAR), our local association, had Kent County at about 1.1 months in its June 2026 report. A balanced market is usually described as five or six. When inventory is that tight, seasonal softness is cushioned — there simply isn't a glut of competing listings in October the way there might be in a well-supplied market. Put plainly: spring pays more because more buyers are competing for each house, not because houses are worth more in April. In Grand Rapids, so few homes are for sale in any season that even fall's thinner crowd is still chasing very little — which is why the seasonal drop-off should hit Grand Rapids softer than the national average.

Waiting isn't free. Listing in May instead of September means roughly eight more months of mortgage payments, taxes, insurance, and upkeep on a house you've decided to leave. It also means eight months of rate risk in both directions, and eight months of your actual life on hold. Run that against the $9,400 before you assume waiting wins.

Some buyers only exist in the fall. Relocations tied to job start dates, families who missed the spring rush, buyers whose leases end in autumn. Fewer buyers overall, yes — but a higher share of them need to move, not want to. A smaller pool of motivated buyers can beat a larger pool of browsers.

The lever that's bigger than the season

Here's what I'd want you to take from the chart: the entire peak-to-floor spread is 2.8 points. Now think about what a bad listing week costs.

A home priced above what the comps support, photographed poorly, and launched into its first weekend without a plan can sit — and in a market where Kent County homes averaged 19 days on market, sitting is loud. The correction that follows a stale listing is usually worth more than 2.8 points. The first week of a listing carries more weight than any other stretch of the sale.

So the ranking goes: price, then preparation, then presentation, then timing. The calendar is real, and it's last. A well-prepared October listing beats a rushed May one, and it isn't close.

The take-home

If your timeline is genuinely open and nothing is pulling you, spring is the better statistical bet — that's what the data says, and I'm not going to tell you otherwise to win a listing this month.

If your timeline is not open — if you've already bought, already relocated, already decided — then stop treating "wait for spring" as free money. Price it right, prepare it properly, and a thin-inventory market like ours will meet you in the fall.

Either way, the question isn't which month is best? It's what does waiting actually cost me, and what does it buy?

That part is napkin arithmetic. Take what the house costs you to hold for a month — mortgage payment, taxes, insurance, and what you realistically spend keeping it up — and multiply it by the months you'd wait. Then set it against roughly 2.8% of what your home would likely sell for. Whichever number is bigger is your answer.

Send me your address and your timeline. What I can actually give you is the number that whole calculation hangs on — a defensible price for your house today, built from real comparable sales rather than an algorithm's guess. The monthly cost you'll know better than I ever could. Put those two next to each other and the answer usually makes itself obvious. If it says wait until March, I'll tell you to wait until March.