The Eric Lefkofsky House, a sprawling French Normandy-style estate located on the shores of Lake Michigan in Glencoe, IL, represents a pinnacle of luxury real estate and architectural restoration. Originally designed by the famed Howard Van Doren Shaw in 1917, the property was acquired by the Tempus AI founder and Groupon co-founder in 2014 for a then-record $19.5 million. Spanning approximately 15,800 square feet, the estate has undergone extensive renovations to integrate Savant-controlled smart technology with historic solid wood craftsmanship. Featuring private lakefront access, a world-class infinity pool, and meticulously restored dovetail-jointed cabinetry, the residence serves as a masterclass in blending 20th-century grandeur with 21st-century SEO-optimized luxury living. As of May 2026, the estate remains one of the most valuable private assets in the Midwest.
Key Facts at a Glance
Here is what makes this property unlike anything else on the North Shore:
- Purchase price: $19.5 million in July 2014, a record for Chicagoland at the time
- Current estimated value: $26.4 million as of May 2026
- Size: 15,800 square feet across 4+ waterfront acres
- Architectural style: French Normandy, originally designed in 1917
- Architect: Howard Van Doren Shaw, one of Chicago’s most celebrated designers
- Smart home system: Savant-controlled lighting, HVAC, and audio
- Special features: Infinity-edge pool, private beach access, geothermal heating
- Estimated annual property tax: $450,000+
Who Is Eric Paul Lefkofsky?
Eric Paul Lefkofsky is an American billionaire entrepreneur, investor, and philanthropist best known as the co-founder of several major technology companies. He gained widespread recognition through his leadership role at Groupon, the online marketplace that revolutionized digital coupons and local deals during the early 2010s. Over the years, Lefkofsky has built a strong reputation in the tech and startup world for identifying fast-growing business opportunities and scaling innovative companies.
Beyond Groupon, Lefkofsky is also the co-founder and CEO of Tempus, a healthcare technology company focused on using artificial intelligence and data analytics to improve cancer treatment and precision medicine. His business ventures span industries including logistics, e-commerce, and healthcare technology, making him one of the most influential figures in modern American entrepreneurship. Alongside his corporate success, he is known for his philanthropic work through the Lefkofsky Family Foundation, which supports education, medical research, and community initiatives.
| Category | Detail |
|---|---|
| Primary Resident | Eric Paul Lefkofsky |
| Estimated Net Worth (2026) | $6.2 Billion |
| Primary Source of Wealth | Tempus AI (TEM), Lightbank, Groupon |
| Property Address | Confidential, Glencoe, IL 60022 |
| Acquisition Price | $19.5 Million (July 2014) |
| Estimated Current Value | $26.4 Million (May 2026) |
| Total Square Footage | 15,800 Sq. Ft. |
| Acreage | 4.0+ Acres (Waterfront) |
| Architectural Style | French Normandy / Manor |
| Original Architect | Howard Van Doren Shaw |
| Annual Property Tax | $450,000+ (Estimated) |
| Key Smart Tech | Savant / Integrated Biometrics |
Why Glencoe? The Strategic Value of the North Shore Location
Not every billionaire picks Glencoe. But here is why it makes perfect sense for someone like Eric Lefkofsky.
The Eric Lefkofsky house sits along the North Shore, a stretch of affluent communities north of Chicago that has long been home to some of the Midwest’s most prominent executives and families. Glencoe offers something genuinely rare: private beach access on Lake Michigan combined with a commute time to Chicago’s downtown business loop that rarely exceeds forty minutes.
The estate occupies a secluded pocket where mature oak canopies screen the property from street view along Sheridan Road. That natural privacy is no accident. High-profile tech executives who live in the public eye often seek “quiet luxury” environments where the scale of wealth isn’t announced at the curb. The rear of the home opens to unobstructed water views. The contrast is striking.
Families also choose Glencoe for the New Trier School District, one of the most respected public school systems in the country. That reputation has a direct and measurable effect on property values in the area, making real estate here a strong long-term hold.
“A man’s home is his castle.” — Sir Edward Coke, 17th-century English jurist
Architectural Deep-Dive: French Normandy Design and the Shaw Legacy
Few homes in the Midwest carry the architectural weight of the Eric Lefkofsky house. It’s a textbook example of French Normandy design, a style defined by steeply pitched roofs, conical towers, and heavy masonry construction that looks like it belongs somewhere in rural France.
Howard Van Doren Shaw designed the original structure in 1917. Shaw was one of the defining architects of Chicago’s Gold Coast and North Shore, known for his ability to blend European historical styles with the scale and utility demanded by American clients. His influence shows up in the asymmetrical floor plan and the seamless movement between indoor and outdoor rooms, a design philosophy that feels surprisingly modern for work done over a century ago.
The exterior uses hand-cut Indiana Limestone paired with slate roofing tiles, both chosen for their durability in harsh Illinois winters and their visual weight. These materials age beautifully rather than deteriorating, which is part of why the estate still looks as intentional today as it did when it was first built.
During the 2016 renovation, the structural team reinforced the foundation to support modern open spans. Traditional load-bearing walls were removed and replaced with hidden steel I-beams, a change that preserved the historic aesthetic while allowing for a far more open interior layout.
Interior Sophistication: Smart Home Technology Meets Custom Craftsmanship
Step inside the Lefkofsky house and the historic exterior gives way to something that feels genuinely contemporary. The two worlds don’t clash. They complement each other in a way that takes serious design skill to achieve.
The entire residence operates on a Savant home automation system, managing DALI-protocol lighting, HVAC zones, and multi-room audio through wall-mounted iPads. Savant is the gold standard in high-net-worth residential automation. It’s the kind of system that doesn’t just control a home — it learns how the home is used and adapts accordingly.
The kitchen and library reflect the same obsession with quality. Cabinetry is built from Grade-A plywood boxes with solid walnut frames and English dovetail joints, a construction method that signals craftsmanship rather than production. Floors throughout are wide-plank reclaimed French Oak, and the primary kitchen countertops are cut from Calacatta Borghini Marble, one of the rarest and most visually striking natural stones available.
“The home should be the treasure chest of living.” — Le Corbusier, architect and urban planner
Exterior Grandeur: The Infinity Pool, Grounds, and Security
The grounds of the Eric Lefkofsky house are designed to survive Illinois winters while looking like a European coastal estate in every other season. That balance takes planning.
The centerpiece of the exterior is a heated infinity-edge pool positioned on the lakefront bluff. From the water, it appears to flow directly into Lake Michigan. The visual effect is one of the most talked-about features of the property, and it’s easy to see why. On a clear summer evening, the line between pool and lake nearly disappears.
The landscaping includes a geometric boxwood parterre, a classic formal garden element that echoes the French origins of the architecture. A restored ravine ecosystem along the property edge manages natural water runoff in a way that keeps the grounds looking maintained without requiring constant intervention.
Security on the perimeter uses 360-degree thermal imaging cameras integrated into the estate’s AI-monitoring system. The cameras feed directly into the Savant hub, meaning the home’s security operates as one unified layer rather than a separate, bolted-on system.
Real Estate Investment Ledger: A Strategic “Buy and Hold” Approach
Eric Lefkofsky’s approach to real estate mirrors the patience he applies to his technology investments. He doesn’t flip. He holds.
- July 2014: Purchased the Glencoe estate for $19.5 million, setting a record for the highest residential sale in Chicagoland history at that time
- 2015 to 2017: Executed a large-scale expansion and renovation project, preserving the limestone facade while upgrading structural integrity
- September 2018: Expanded into Florida with a $30.7 million acquisition of a penthouse at The Surf Club in Surfside, FL
- 2020 to 2026: Focused on “Interior Hardening,” upgrading the Glencoe property with net-zero energy systems and AI-driven security enhancements
Each move reflects a clear strategy: acquire historically significant properties, invest in them properly, and hold them as appreciating assets.
Sustainability Features: Green Technology in a Century-Old Estate
Integrating eco-friendly systems into a 1917 home isn’t easy. But the Eric Lefkofsky house manages it without compromising the historic character of the structure.
A discreet, low-profile solar array offsets a portion of the energy demands of the 15,800-square-foot structure. The panels are positioned to remain largely invisible from the street, keeping the visual integrity of the French Normandy roofline intact.
Beneath the property, geothermal loops drilled deep into the lakefront land provide efficient temperature regulation through both heating and cooling cycles. This system is significantly more efficient than conventional HVAC over the long run, particularly in a climate with the temperature swings Illinois experiences.
An underground cistern system collects rainwater for automated irrigation across the 4-acre grounds. At that scale, a traditional water supply would carry substantial ongoing cost. The cistern brings those numbers down meaningfully while supporting the health of the landscaping year-round.
Market Value Projection: What the Estate Is Worth Through 2030
Historical estates with Starchitect pedigrees don’t follow ordinary real estate trends. They hold value in downturns and appreciate during peaks in ways that modern “white box” luxury builds don’t.
| Year | Estimated Value |
|---|---|
| 2014 (Purchase) | $19.5 Million |
| 2026 (Current) | $26.4 Million |
| 2030 (Projected) | $31.2 Million |
The scarcity of Lake Michigan lakefront land is a key driver. There simply isn’t more of it being created. Combined with the Howard Van Doren Shaw pedigree and the documented renovation investment, the estate carries a value proposition that institutional real estate analysts would recognize immediately.
“Buy land, they’re not making it anymore.” — Mark Twain
The Historic Record-Breaker: What the $19.5 Million Purchase Meant for Chicago
When the sale closed in July 2014, it wasn’t just a real estate transaction. It was a signal. The $19.5 million price tag was the highest residential sale in Chicagoland history at that point, and it announced to the national luxury market that Chicago-area properties could compete at a tier most people hadn’t associated with the Midwest.
The house has since been featured in architectural journals and is regularly cited as a prime example of successful historical preservation. It’s rare for a renovation project to strengthen a property’s standing in the architectural community rather than dilute it. This one did.
FAQ: Common Questions About the Eric Lefkofsky House
Q: How many bedrooms does the Eric Lefkofsky house have?
The estate features 6 primary bedrooms and 9.5 bathrooms, including a dedicated guest wing and staff quarters. The layout was expanded during the 2015 to 2017 renovation to nearly double usable square footage.
Q: Did Eric Lefkofsky build the house himself?
No, the home was originally built in 1917 by architect Howard Van Doren Shaw. Lefkofsky purchased it in 2014 and oversaw a multi-year, multi-million dollar renovation and expansion project.
Q: What smart home system does the Lefkofsky estate use?
The property runs on a Savant home automation system, managing lighting, climate control, and multi-zone audio through integrated wall-mounted iPads throughout the residence.
Q: Is the property visible from Sheridan Road?
No. The home sits behind private gates and a dense tree line that screens it completely from street view. It’s also not accessible from the lake side without private permission.
Q: What sustainability features does the estate include?
The property uses a solar array, geothermal heating and cooling loops, and an underground rainwater cistern for irrigation. These systems were added during the post-2020 Interior Hardening phase.
Q: What was the estimated property tax on the estate?
Based on recent Cook County assessments, the annual property tax is estimated to exceed $450,000 per year.
Q: Does the Lefkofsky estate have its own beach?
Yes. The property includes a private staircase leading down the bluff to a dedicated private beach on Lake Michigan.
A Legacy Written in Limestone and Technology
The Eric Lefkofsky house isn’t just a home. It’s a statement about what it looks like when serious money meets serious taste and genuine respect for history. From the hand-cut Indiana Limestone on the exterior to the Calacatta Borghini Marble in the kitchen, every material choice reflects intention. The technology layer, from the Savant system to the thermal imaging perimeter, doesn’t fight the 1917 architecture. It lives quietly within it.
What makes this estate genuinely notable isn’t the price tag, though that is remarkable. It’s the fact that someone took a century-old masterwork and made it better without erasing what made it worth preserving in the first place. That’s not common. And with a projected value of $31.2 million by 2030, the Glencoe estate is positioned to remain one of the defining private properties in the American Midwest for decades to come.
