"If we had known that this ordinance were going to be potentially in place or adopted, we would have looked at other communities and we would have definitely reconsidered the price."
Vijay Kotte said that to Winnetka's village council in February 2024. He is the CEO of GoHealth, and months earlier he and his wife Shiraz had paid $12.3 million for a 10,000 square foot lakefront home at 445 Sheridan Road, the second priciest residential sale in Cook County that year. He made the comment while opposing a zoning change that hadn't existed when he signed his contract and that would, within two years, determine what he was actually allowed to build on the land he'd just bought.
That's the part of the Winnetka lakefront story that doesn't show up in a median price chart. A house that sold for a headline number in 2023 was a different asset by 2024, not because the market moved, but because the village redrew the line on where a house is allowed to sit.
The rule that started with one man's bluff
The ordinance is officially Ordinance MC-1-2024, and the village board passed it unanimously in February 2024. It grew directly out of one project: billionaire Justin Ishbia's construction of a lakefront compound, assembled from multiple parcels, that grew to more than 60,000 square feet and reportedly cost upwards of $77 million. Part of that build involved leveling roughly 25 feet of bluff along the shoreline, and the visible reshaping of the shoreline set off enough public concern that the village moved to regulate what any future owner along that same stretch of Sheridan Road could do.
The rule itself is a setback formula. New construction has to sit back from either the toe of the bluff or 50 feet from Lake Michigan's high water mark, whichever leaves more distance from the lake. Existing structures inside that zone can be repaired or replaced in place. New ones can't be built there at all.
That single distinction, repair versus new build, is what split the market.
What the setback actually costs, in real numbers
Before the ordinance passed, an architect named Seth Romig ran a case study using a Winnetka lakefront lot that had sold in 2020 for $2.79 million, on roughly one and a quarter acres. Compared against the village's prior rules, he found the new ordinance would cut the buildable portion of the lot by 37 percent, push a new house 56 feet farther from the water than before, and eliminate any possibility of a walk-out basement with lake-facing windows. That analysis was submitted to the village board before the vote, as part of an attorney's letter arguing the rule would suppress lakefront values.
The lawsuits that followed have supplied harder numbers. A federal complaint filed by more than two dozen homeowners, including former executives from Abbott and United Airlines, alleged the ordinance had already erased $16 million in value across four estates, and could cost hundreds of millions if applied across all 112 lakefront parcels it affects. One plaintiff, Michael Hara, said his Sheridan Road property lost nearly $4 million after roughly 10,000 square feet of buildable bluff top was eliminated, with an appraisal dropping from $11.12 million to $7.31 million. The steepest example in the filing belonged to Barbara Irwin's estate on Taylorsport Lane, where 17,700 square feet became off limits and the appraisal fell 64 percent, from $7.54 million to $2.69 million.
Those figures are the plaintiffs' own valuations, filed as evidence, not a village assessment. But they describe the same mechanism the architect's case study found: less buildable land, farther from the water, no walkout level. The dollar amounts are simply what that mechanism looks like when it's applied to specific, named addresses.
A rebuild at 445 Sheridan Road under the new rules
Kotte's own story didn't end with his comment to the council. He and Shiraz were part of the litigation early on. But in 2025, after a 270-day delay imposed by Winnetka's Historic Preservation Commission (a delay significant enough that one commission member, Laura Good, resigned in protest over how the demolition request was handled), the Kottes won approval to tear down the historic Clement Stone Mansion at 445 Sheridan Road and replace it with a new 28,690 square foot home, among the largest lakefront houses in Winnetka. The new design, by architect Michael Hershenson with Heritage Luxury Homes as general contractor, was built to comply with the setback rule Kotte had questioned at the 2024 council meeting. Months after winning that approval, the Kottes ended their involvement in the lawsuit.
The rule didn't stop new construction on the lakefront. It changed what new construction has to look like, and a buyer with enough land and enough patience for the preservation review can still build something enormous. What changed permanently is what a smaller or more typical lakefront lot can still support.
The litigation hasn't gone away, but the rule is standing
The legal fight is still active. A federal judge, LaShonda Hunt, dismissed the homeowners' federal takings claims, the second time those claims had been thrown out, ruling the ordinance did not amount to an unconstitutional seizure of property. State law claims from the same group remain pending. The village has said publicly it considers the ordinance settled law and continues to process permits under it.
For anyone evaluating a purchase today, the practical takeaway is straightforward: assume the ordinance holds. It has survived two rounds of federal review, and nothing in the pending state claims has paused enforcement in the meantime.
Why the record sales make more sense once you see the split
Two lakefront sales set back to back records in 2025, one closing at $31.3 million in September, another at $32.5 million two months later. Both were negotiated by the same broker, and both involved older, established lakefront estates rather than post-ordinance new construction.
That pattern showed up again in March 2026, when a lakefront mansion at 319 Sheridan Road came to market asking just under $30 million. The listing highlights a bluff top pool and spa steps above the lake, a stone staircase down to the beach, and an underground tunnel connecting the gym to the main house, features described as ones that couldn't be built today under the current lakefront ordinance. That's not marketing flourish so much as an accurate description of what the setback rule now prevents. The house isn't just competing on square footage or finishes. It's selling access to a site plan the village will not approve again.
Reading a Winnetka lakefront listing differently now
Before the ordinance, a Winnetka lakefront listing and a comparable lot two doors down were interchangeable in a way that made square footage and finish level the main variables. That's no longer true. The relevant question for anyone comparing lakefront properties now is whether the existing structure predates February 2024, and whether it can be maintained and repaired in its current footprint rather than rebuilt from scratch.
| Before MC-1-2024 | Since February 2024 | |
|---|---|---|
| Setback baseline | Local building line, often near the top of the bluff | 50 feet from the high water mark, or the bluff toe, whichever leaves more room |
| Walk-out, lake facing basement | Routine on most lakefront lots | Effectively unavailable on new construction in the steep slope zone |
| Buildable land lost on a case study lot | Not applicable | 37 percent, per a pre-ordinance architectural analysis |
| Value impact cited in pending litigation | Not applicable | $16 million across four estates; one lot down 64 percent |
A house with a pool at the bluff's edge, a lake facing lower level, or a boathouse built before 2024 is holding something a buyer cannot recreate on a comparable lot today, even with an unlimited budget. A teardown or a raw lot has to be evaluated against the new envelope, not the neighboring house's footprint, and that means pulling the specific permit history before assuming a rebuild will match what's already standing next door.
Because Winnetka sits in Cook County rather than DuPage, the record to check isn't a county tax roll. It's the village's own building and zoning permit file for the specific parcel, which will show whether a structure was approved before or after the ordinance took effect, and whether any variance has already been granted or denied on that lot.
If you're comparing a Winnetka lakefront estate against something in Hinsdale, Oak Brook, or another western suburb on your shortlist, the site plan now carries as much weight as the price per square foot. Ginny Homes can help you read a specific parcel's permit history before you write an offer, so you know whether you're buying a footprint that can be maintained or one that would have to be rebuilt smaller. Schedule a Private Consultation to talk through what a particular Winnetka address can and can't become.
