What Downers Grove's Rare New Construction Tells You About Every Older House

If a brand-new four-bedroom house in Downers Grove starts at $1,269,990, what is a 1960s ranch three streets away actually competing against?

That's the starting price M/I Homes lists for the Hudson plan at Talon Preserve, its 35-homesite community at 39th Street and Cumnor Road. In July 2026, the village's median detached sale price was $590,000. Brand-new costs about 2.15 times what the typical resale house sells for. That ratio matters more than either number alone. It tells a buyer what an "updated" older home is really being compared against. It also tells a seller or renovator how far a remodel can push value before the house starts competing with new construction it can't match.

The Price Sheet At 39th And Cumnor

Talon Preserve sits on a former radio station parcel. Chicago Agent magazine reported that M/I had finished site demolition, including three radio towers, before presales began in December 2025, and called the land one of the last undeveloped residential parcels near the I-88/I-355 interchange.

Here's how the builder's plan pricing reads as of October 2026. These are live builder figures that can change at any time.

The standard lot is 75 by 140 feet, or 10,500 square feet. The Village planning materials show some smaller and narrower exceptions. M/I lists a $150 monthly HOA fee. Per the planning documents, the HOA maintains common areas, pathways, landscape buffers and stormwater areas. Most resale buyers in town won't be carrying that line item.

Demand at that price is visible. The builder's plat map currently shows 15 homes in contract, 4 closed, 5 quick move-in homes and 3 open homesites. Quick move-in estimates run from November 9, 2026, for a Sutcliff to February 14, 2027, for another Sutcliff. The model sits at 40 39th Street. Plenty of buyers are paying more than $1.2 million for new construction in Downers Grove. That's the top end of the market, and every older house gets measured against it.

What $590,000 Buys Against That

The MRED Local Market Update for July 2026, with data current as of August 14, gives the resale side. It's the most recent village-level report found as of this writing.

Detached homes in Downers Grove, from MRED's July 2026 report:

• Median sale price, July 2026: $590,000, up 5.4% from $560,000 in July 2025
• Median sale price, trailing 12 months through July 2026: $580,000, up 9.0%
• Average sale price, trailing 12 months: $697,688
• Percent of original list price received, July 2026: 102.7%
• Closed sales, July 2026: 47, down from 55
• Inventory at month end, July 2026: 73 homes
• Average market time, July 2026: 20 days

Two of those numbers carry the story.

First, the trailing-year average runs about $117,700 above the median. A gap that wide means a group of expensive sales is pulling the average up while the typical house trades much lower. In July alone, the average was $755,596 against a $590,000 median, a spread of about $165,600. Downers Grove behaves like two price tiers sharing one zip code. New and newer high-end product sits on top, and the large stock of older homes sits underneath.

Second, buyers paid 102.7% of original list price in July. Older homes in the lower tier draw competitive offers because the next step up is so far away. When new construction starts roughly $680,000 above the median, a well-kept older house doesn't really compete with new homes. It competes with other older houses, and there aren't many. With 73 detached homes listed at the end of July against 47 closings, inventory ran at roughly a month and a half of sales.

The county shows the same pattern at a smaller scale. DuPage County's July 2026 detached median was $553,000. Downers Grove sits about $37,000 above that. The premium is modest next to the gap between resale and new construction inside the village itself.

The Ceiling Every Renovation Runs Into

A remodel adds value only while the finished house stays clearly cheaper than the new-construction alternative. In Downers Grove that alternative is a 3,145-square-foot or larger house on a 10,500-square-foot lot, with a full basement and three-car garage, priced from $1,269,990. An older house can close some of that distance with a kitchen, baths and finishes. It can't change its lot, foundation or garage count. The closer a renovated house gets to the new-build price, the more its buyer starts asking why they wouldn't just buy new. That's when renovation dollars stop coming back at sale.

The ceiling works differently for each type of buyer:

1. Resale buyers. The 102.7% list-to-sale ratio in July shows that move-in-ready older homes draw bidding pressure. The ceiling still applies. A renovated older house priced well above the $590,000 median has to justify itself against a brand-new house that costs more but comes with no deferred maintenance.
2. Sellers weighing prep. The useful question isn't how much a buyer would love a new kitchen. It's where the finished house would land between $590,000 and $1.27 million, and whether buyers in that band reward the work. Targeted updates that keep a house priced near the middle of the market protect the bidding pressure the July numbers show.
3. Investors. A realistic ARV for a Downers Grove flip sits well below the new-construction price. Underwriting a resale exit near Talon Preserve pricing means assuming a buyer pays new-build money for a house that isn't new.

The Third Path Costs More Than The Lot

A buyer looking at an older house on a good lot has a third option, which is to tear it down and build. Village costs make that path more expensive than the land price alone suggests. Under the fee schedule effective April 10, 2026, posted by the Village of Downers Grove:

• Demolition fee of $780 for structures under 30,000 square feet
• Demolition or construction sign fee of $195, plus $25 for a parkway-tree sign
• Demolition and construction site-management bond of $5,000
• Residential building permit of $5,295 for a 3,000 to 3,999 square foot house

Two site rules add design and timing friction. New single-family construction has to provide on-site stormwater storage scaled to net new impervious area, with fencing around the storage area before demolition starts. If a parkway tree measures 18 inches or more in diameter, the Village requires an on-site meeting before demolition and may require a tree-risk report before issuing a building permit. Unlawful removal is listed at $275 per inch of trunk diameter.

The fees themselves are small next to a seven-figure build. The tree review and stormwater design affect the schedule, and schedule is where carrying costs grow.

How Rare Is New Construction Here?

M/I's area president, Rick Champine, told Chicago Agent magazine that "even tear-down redevelopment on stand-alone lots has been limited since the early 2000s" in Downers Grove. That's a builder describing its own product's scarcity, and it should be read that way. Not every builder in town tells it the same way. A local custom builder advertises infill custom-home sites in Downers Grove from around the $1.1 million range, and a five-homesite custom community called Fairway Court from around $1 million to $1.5 million.

So new construction in Downers Grove is limited, but it isn't gone. Both sources land at the same price level. Whether it's a subdivision plan or a custom infill build, new starts around $1 million and climbs from there.

A Few Direct Questions

Is the July 2026 median the most current Downers Grove figure? It's the most recent one found as of October 12, 2026. MRED's July report has data current as of August 14, and no later Downers Grove report turned up. MRED cautions that one month of data can look extreme because of small sample sizes. That's why the trailing 12-month median of $580,000 is a useful check.

Do those prices account for seller concessions? No. The MRED figures don't account for concessions, so a sale price can overstate what a seller actually netted.

Does the gap apply to townhomes and condos? Not in the same way. Attached homes in Downers Grove had a July 2026 median of $228,000 and a trailing 12-month median of $241,000, with an average market time of 41 days in July. That market runs on its own logic, and the new-construction ceiling described here doesn't drive it.

If you own an older Downers Grove house and are deciding how much to put into it before selling, the first number to pin down is where the finished house would sit between the $590,000 median and the $1.27 million new-build floor. Mike Thurman builds that analysis from condition, comps and renovation cost before any work starts. Schedule a Consultation to see where your house lands.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.