Market data — Q3 2026

Did September's Rate Jump Show Up in Downtown Condo Prices? Not Yet

Of downtown Chicago condo sales that closed between July 1 and September 30, 2026, 96% went under contract before September 1 and 77% before August 1. With a median of 35 days from contract to close, Q3 2026 closed prices mostly reflect deals negotiated before September's rise in mortgage rates, so they can't yet show its effect.

Most Q3 Sales Were Agreed Before Rates Rose

Of downtown Chicago condo sales that closed between July 1 and September 30, 2026, 96% went under contract before September 1, and 77% before August 1. The median time from contract to close for those sales was 35 days.

Put the other way, about 4% of Q3 2026 downtown condo closings went under contract in September. That is a thin slice of the quarter's sales from which to read any response to a change that happened during the month.

The 77% figure sharpens the point. More than three-quarters of Q3 2026 downtown condo closings came from contracts signed before August began, which puts most of the quarter's pricing at least a month ahead of September.

The price on a closed sale is largely set when the contract is signed, not at the closing table. A quarter's closings are therefore mostly a record of negotiations from earlier in the quarter and the weeks before it.

The Rate Change Itself

The Q3 2026 monthly cost-to-own figures for downtown Chicago condos on the Research page assume a 7.60% 30-year fixed mortgage rate (Q3 2026), compared to 6.36% (Q3 2025) for the year-earlier comparison.

At those rates, the same monthly principal-and-interest payment supports about 12% less loan. A downtown condo buyer holding the monthly payment fixed can borrow about 12% less at 7.60% (Q3 2026) than at 6.36% (Q3 2025).

Those two rates are the inputs to a year-over-year cost comparison. They are not a measurement of the September move on its own, and this post doesn't assign a size to that move.

The Research page's Q3 2026 monthly ownership costs build on the 7.60% (Q3 2026) assumption, so they show what buying at Q3 prices with Q3 financing costs each month. They do not show whether prices have started to respond to the rate.

Why Q3 Prices Can't Tell You the Rate's Effect Yet

With a median of 35 days from contract to close among downtown Chicago condo sales that closed between July 1 and September 30, 2026, a contract signed in September typically closes in October or later, outside the quarter.

That lag is the answer to the question in the title. Q3 2026 closed prices are, for the most part, the result of negotiations that took place before September. If the rate rise changed what downtown condo buyers were willing to pay, Q3 closings came too early to show it.

This cuts both ways. Q3 2026 prices can't be read as evidence that higher rates had no effect on downtown condo prices, and they can't be read as evidence of a decline either. The closing data doesn't reach that far yet.

The same caution applies to any Q3 figure built on closed sales, including market time and sale-to-list ratios. Each describes deals that were mostly agreed before September.

What to Watch Next

Q4 2026 closings will be the first quarter to include a substantial share of contracts signed after the September rise. That makes Q4 the first quarter that can show a response in downtown condo prices, if there is one.

Even then the read will be partial. With a median of 35 days from contract to close, Q4 2026 closings will still include contracts signed before September, so the cleanest signal will come from the later part of the quarter's sales.

The measures worth watching are the ones set at contract: sale-to-list ratios, the share of sales at or above asking, price reductions before sale, and market time. This post makes no prediction about which way any of them will move.

These figures reflect closed sales through September 30, 2026 (Q3 2026); the Q4 2026 update replaces them and will be the first to test the question this post leaves open.

Roz Dupiton is a top real estate advisor and downtown Chicago condo specialist.