The Same Chicago House Is Worth 43% More Than It Was in 2021. The Payment on It Is Up 120%!

By Jason Rosenberg | The Rosenberg Group at Infiniti Properties

Pick a house. Any house in the Chicago area. Don't move it, don't renovate it, don't change a thing about it. Just let five years go by.

That house is worth about 43% more today than it was in the summer of 2021.

The monthly payment to buy it is up 120%.

Those two numbers come from the same five years, and the gap between them explains almost everything strange about the Chicago market right now — why sellers feel rich and buyers feel broke, why inventory won't budge, and why the "should I wait?" question has gotten so much harder to answer.

First, where the 43% comes from

Most price statistics you see are medians. The median tells you the midpoint of what sold. It does not tell you what happened to your house, because the mix of what sells changes every single month.

There is one measure built specifically to solve that problem: the S&P Cotality Case-Shiller index. It works by matching repeat sales of the same property — the same address, sold twice — and measuring the difference. Same house, two dates. That's the entire method.

Here is the Chicago index, seasonally adjusted, from Federal Reserve economic data:

• June 2021: 163.56
• June 2026: 233.54
• Change: +42.8%

Now compare that to what the medians say over roughly the same stretch, using Illinois REALTORS® data:

• City of Chicago median: $345,000 in July 2021 → $425,000 in July 2026. Up 23.2%.
• Nine-county Chicago metro median: $310,000 in July 2021 → $401,000 in July 2026. Up 29.4%.
• Same-house repeat sales:Up 42.8%.

That's a 13-to-20 point gap, and it isn't a contradiction. Both numbers are correct. They're answering different questions.

The medians got dragged down by mix. Chicago condos have badly lagged single-family homes for years. First-time buyers priced out of the market stopped closing on the entry-level product that used to anchor the bottom of the median. What sold in 2026 is not a representative sample of what sold in 2021.

So when a homeowner says "I heard prices are up about 25%" and their neighbor's house just resold for 45% over its 2021 price, nobody is lying. The homeowner is quoting a median. The neighbor is quoting a repeat sale.

Chicago is now the strongest housing market in America, and it isn't close

For four consecutive months through June 2026, Chicago led all 20 metros in the Case-Shiller index. June's annual gain was 6.9%, against a national figure of 1.5%. Seattle, at the other end, was down 2.0% — a nearly nine-point spread between the strongest and weakest markets in the country.

But the more interesting number is the longer one.

Chicago's index peaked at 168.02 in March 2006. Then it crashed, bottomed around 107 in 2012, and spent years grinding back. It did not climb back above its 2006 peak until September 2021.

That is fifteen and a half years for the average Chicago-area house to get back to even.

Everything since is genuinely new ground: the index is up 38.7% from that September 2021 crossing point. And measured from just before the pandemic — February 2020 — the same-house index is up 60.8%.

Chicago spent a decade and a half as the punchline of American housing. It is currently the leader.

The cheapest houses moved the most

Case-Shiller also publishes Chicago by price tier. Over that same June 2021 to June 2026 window:

• All homes: +42.8%
• Low tier (the least expensive third of the market): +46.3%

The bottom of the market rose faster than the market as a whole. That runs against the intuition a lot of people have — that the money went into the North Shore and the expensive suburbs. In percentage terms, the modest house appreciated harder.

It also lines up with what I've written about before on days-on-market: the affordable end of Chicagoland has the least supply relative to demand, which is exactly where you'd expect the sharpest percentage gains.

Now the part that hurts: the payment

Let's put an actual dollar figure on it. I'm going to use the July 2021 metro median of $310,000 as the starting price and apply the same-house index to it. (To be clear: this is an illustration built from the index, not a specific address — but it's the arithmetic that applies to a real house that didn't change.)

The 2.96% is Freddie Mac's average 30-year rate for all of 2021. The 6.71% is Freddie Mac's weekly survey as of September 3, 2026 — the highest reading in over a year.

The house got 43% more expensive. The payment got 120% more expensive. That's $1,247 more every month for the identical structure on the identical lot. Over a full 30-year term, it's about $449,000 in additional payments.

And that table only covers principal and interest. It doesn't touch the other two lines on the bill.

Insurance and taxes did not sit still either

Homeowners insurance. Illinois premiums rose roughly 50% between 2021 and 2024 according to the Consumer Federation of America — from an average near $2,000 a year to near $3,000, the second-steepest jump in the country behind Utah. LendingTree's 2026 report puts the Illinois average at $2,731, up 68% since 2020, with a 14.1% increase in 2025 alone. Insurify projects the Illinois average will hit $3,559 this year.

Those three sources disagree on the level, which is worth saying plainly — they use different methods and different coverage assumptions. They agree completely on the direction.

Property taxes. Cook County just mailed 1.8 million second-installment bills on September 1, due October 1. Treasurer Maria Pappas's analysis found the total billed across the county hit $19.9 billion, up $744 million (3.9%) — the 32nd consecutive annual increase. Residential bills rose 5.3% while commercial rose 1.8%, the fifth straight year the homeowner share has grown faster than the business share.

And going back to the window we're measuring: during the 2021–2023 reassessment cycle, Chicago residential bills rose more than 16% while business bills fell nearly 20%.

Add it up and the "same house" from 2021 now carries a bigger mortgage payment, a bigger insurance premium, and a bigger tax bill.

If you bought in 2021, here's your actual position

Take that same buyer. $310,000 in July 2021, 20% down, 2.96% for 30 years. Five years of payments later:

• Estimated value today: $442,623
• Remaining loan balance: about $220,327
• Gross equity: roughly $222,000
• Cash originally put in: $62,000

That is $62,000 of down payment sitting behind about $222,000 of equity, plus five years of housing at a payment nobody can get anymore.

Which is exactly the trap. The most valuable thing you own may not be the house. It may be the 2.96% mortgage on it. Selling and buying an equivalent home means giving that up and picking up the $2,287 payment instead. This is the lock-in effect, and it's a large part of why Chicago inventory has stayed so thin — it isn't that nobody wants to move, it's that moving costs more than the equity gain suggests.

The honest case for staying put: your payment is irreplaceable, your equity keeps compounding whether you sell or not, and Chicago has led the nation in appreciation for four straight months with no sign of a supply wave coming.

The honest case for moving anyway: equity you can't access isn't doing much for you; if the house genuinely doesn't fit anymore, five more years of the wrong house is expensive in ways a spreadsheet won't show; and if you're moving to something cheaper — downsizing, or trading a city house for a farther-out suburb — the equity can cover enough of the gap that the higher rate stops mattering. Everyone's math is different, and it's worth actually running yours before assuming either answer.

If you're buying now, here's the same coin, flipped

That $1,040 monthly payment bought a $248,000 loan in 2021.

The same $1,040 buys a $161,042 loan today — about a $201,300 purchase price with 20% down.

Same money. Roughly a third less house. That is the single clearest way to see what happened to buying power in five years, and it's why "just wait for prices to come down" is a harder strategy than it sounds — the price isn't really what moved.

The counterintuitive part worth sitting with: if rates do fall, buyers get more borrowing power, and in a market with this little inventory, extra borrowing power tends to get competed straight back into price. Lower rates are not automatically a cheaper house. I wrote about that dynamic in more detail when the Fed news broke last month.

Where this analysis could be wrong

A few things you should know before you take the 43% and run with it:

• Case-Shiller Chicago is a metro-wide, single-family index. It covers the Chicago-Naperville-Elgin area including parts of Indiana and Wisconsin, and it excludes condos. Chicago's condo market has significantly underperformed single-family over this period, so condo owners should not apply this figure to their unit.
• A metro index is not your block. Neighborhoods and suburbs inside this region moved very differently. Some towns are up far more than 43%; some are up far less.
• Repeat-sales indexes have blind spots. They exclude new construction and any home that only sold once in the window. They also screen for major renovations between sales, but the screening isn't perfect.
• This is a nominal gain, not a real one. Inflation ran hot over these five years — CPI was still 3.5% in June 2026, and nationally, home prices have fallen in inflation-adjusted terms for 13 consecutive months. Chicago's gain outran inflation where most metros' didn't, but a 2021 dollar and a 2026 dollar aren't the same dollar.
• The payment table uses national average rates. Your actual rate depends on credit, down payment, loan type, and lender. Nobody gets "the average."

What to actually do with this

If you own and you're curious:

• Look up what you paid and the date. Applying the index gives you a rough current value — a starting point, not an appraisal.
• Check your current loan balance, not your original loan amount. Five years of amortization is real money.
• Pull your actual escrow statement and see how much of your payment increase since 2021 was taxes and insurance rather than the loan.
• If you're in Cook County, read the bill that landed September 1 and confirm your exemptions are on it. Exemptions don't automatically transfer, and a missing Homeowner Exemption commonly runs $700 to $1,000 a year.

If you're buying:

• Shop the rate as hard as you shop the house. A quarter point on a $354,000 loan is roughly $57 a month for 30 years.
• Get the actual tax bill for the specific property before you write an offer, not the listing's estimate. The variation between towns is enormous.
• Get a real insurance quote during attorney review, not after. Roof age is the number one thing that surprises people.
• Ask whether the seller's loan is FHA or VA. Those are assumable, and in a 6.71% market, a 3% assumable loan is worth serious money.

If you're thinking about selling

If you bought before 2022, you're probably sitting on more equity than you think, and Chicago is currently the strongest appreciation market in the country. That's a real position of strength.

It's also a position worth protecting on the way out. I list at 1.25% on the listing side. On a $442,623 sale, that's $5,533. Full service — professional photography, 3D Matterport tour, full online marketing, the whole thing.

Two other things I do that are worth knowing about:

• The Zero Commission Clause. If you find your own buyer, you pay me nothing.
• Cancel anytime. No lock-in. If you're not happy, you walk.

If you want to know what your specific house is actually worth today — not what an index says about the metro — I'll put together a real comparative market analysis using your block, your property type, and your condition. No cost, no obligation.

Jason RosenbergThe Rosenberg Group at Infiniti Properties312.882.9797https://www.jasonrosenbergrealestate.com/Serving Chicago & the Entire Chicagoland Area

Sources

• S&P Dow Jones Indices LLC, S&P Cotality Case-Shiller IL-Chicago Home Price Index [CHXRSA], retrieved from FRED, Federal Reserve Bank of St. Louis (June 2021: 163.56; June 2026: 233.54; March 2006 peak: 168.02; September 2021 crossing: 168.34; February 2020: 145.27)
• S&P Dow Jones Indices LLC, Home Price Index (Low Tier) for Chicago, Illinois [CHXRLTSA], retrieved from FRED (June 2021: 201.65; June 2026: 295.08)
• S&P Dow Jones Indices, "S&P Cotality Case-Shiller Index Reports Annual Gain in June 2026," Aug. 25, 2026 (Chicago +6.9% leading all 20 metros for a fourth consecutive month; national +1.5%; Seattle -2.0%; June CPI 3.5%; 13th consecutive month of real price declines nationally)
• Crain's Chicago Business, "Chicago home sales rise in July 2021," Aug. 2021 (City of Chicago July 2021 median $345,000)
• Illinois REALTORS® July 2021 market data via published reporting (nine-county Chicago metro median $310,000)
• Illinois REALTORS® July 2026 market data via WTTW News and Axios Chicago, Aug. 2026 (City of Chicago median $425,000, +13.3%; nine-county metro median $401,000, up from $375,500)
• Chicago Agent Magazine, "Chicagoland sales, prices rise while inventory falls in June," July 27, 2026 (metro median $407,000; Chicago inventory -28.9%)
• Freddie Mac Primary Mortgage Market Survey (2021 annual average 30-year fixed 2.96%; 30-year fixed 6.71% as of Sept. 3, 2026, up from 6.66% the prior week and 6.50% a year earlier)
• Consumer Federation of America, via WBEZ Chicago / Chicago Sun-Times, March 27, 2026 (Illinois home insurance up ~50% from 2021 to 2024, roughly $2,000 to $3,000; second-largest increase nationally after Utah)
• LendingTree State of Home Insurance Report 2026, via CBS Chicago, June 2026 (Illinois average $2,731; up 68% since 2020; +14.1% in 2025)
• Insurify, via WBEZ Chicago, March 2026 (Illinois projected 2026 average premium $3,559)
• Cook County Treasurer Maria Pappas, annual tax analysis, Aug. 24, 2026, via Chicago Sun-Times, WTTW News, The Real Deal and Daily Herald ($19.9 billion billed, +$744 million / 3.9%, 32nd consecutive increase; residential +5.3% vs. commercial +1.8%; 1.8 million bills mailed Sept. 1, due Oct. 1)
• Cook County Treasurer's Office report via Chicago Sun-Times, May 2025 (Chicago residential bills +16% and business bills -20% across the 2021–2023 reassessment cycle)