435 Thorne Lane
Lake Forest, IL 60045
$4,950,000
Set on 1.28 acres at the end of a quiet East Lake Forest cul-de-sac, this exceptional contemporary home offers 8,078 square feet above grade plus finished lower level. Walls of glass, a dramatic floating staircase and open living spaces frame views of the pool, terraces and wooded ravine. The kitchen features custom ebony cabinetry, high-end appliances and a large island and opens directly to the family room and outdoor living areas. Substantial recent improvements include new HVAC systems, a new heated driveway, extensive landscaping and drainage work, custom interior upgrades, a whole-house generator and a Crestron lighting and shade-control system. The lower level includes a media room, workout room, bar, guest accommodations and indoor sport court, while the renovated in-law suite has its own kitchen and den. Additional highlights include six bedrooms, 7.1 baths, an elevator, heated pool and spa, screened porch with retractable screens and fireplace, and a heated garage that can accommodate up to 6 cars.
| Listing Id: | 12718757 |
|---|---|
| List Price: | $4,950,000 |
| Property Type: | Residential |
| Property Type: | Detached Single |
| Status: | Active |
| Bedrooms Total: | 5 |
| Bathrooms Full: | 7 |
| Bathrooms Half: | 1 |
| Living Area: | 8,078 |
| Parking On Site: | Yes |
| Tax Annual Amount: | $72,427 |
| Architectural Style: | Modern |
| City: | Lake Forest |
| County Or Parish: | Lake |
| Postal Code: | 60045 |
| Year Built: | 2009 |
| Appliances: | Double Oven, Microwave, Dishwasher, High End Refrigerator, Bar Fridge, Freezer, Washer, Dryer, Disposal, Wine Refrigerator, Cooktop, Range Hood, Humidifier |
| Association Fee Frequency: | Not Applicable |
| Association Fee Includes: | None |
| Basement: | true |
| Basement: | Finished, Exterior Entry, 9 ft + pour, Rec/Family Area, Full |
| Bathrooms Total Integer: | 8 |
| Bedrooms Possible: | 6 |
| Below Grade Finished Area: | 3,754 |
| Community Features: | Street Paved |
| Construction Materials: | Stucco, Stone |
| Cooling: | Central Air |
| Directions: | East on Deerpath to Sheridan Road, South to Rosemary, East to Thorne, north to address, on cul-de-sac. |
| Electric: | Service - 400 Amp or Greater |
| Elementary School: | Sheridan Elementary School |
| Elementary School District: | 67 |
| Exterior Features: | Balcony, Hot Tub |
| Fireplace Features: | Double Sided, Wood Burning, Gas Log, Gas Starter, Masonry |
| Fireplaces Total: | 3 |
| Foundation Details: | Concrete Perimeter |
| Garage Spaces: | 6 |
| Green Energy Efficient: | Geothermal Heating/Cooling System |
| Heating: | Natural Gas, Forced Air, Radiant, Zoned, Radiant Floor |
| High School: | Lake Forest High School |
| High School District: | 115 |
| Interior Features: | Wet Bar, Elevator, 1st Floor Bedroom, In-Law Floorplan, 1st Floor Full Bath, Built-in Features, Walk-In Closet(s) |
| Laundry Features: | Main Level, Upper Level, Gas Dryer Hookup, Laundry Closet, Multiple Locations, Sink |
| Living Area Source: | Plans |
| Lot Features: | Cul-De-Sac, Landscaped, Mature Trees |
| Lot Size Acres: | 1.28 |
| Lot Size Dimensions: | 297X112X110X234X95X40X38X142 |
| Middle Or Junior School: | Deer Path Middle School |
| Middle Or Junior School District: | 67 |
| MLS Area Major: | Lake Forest |
| Age: | 16-20 Years |
| Agent Owned/Interest (Y/N): | No |
| Aprox. Total Finished Sq Ft: | 11832 |
| Assessor Square Footage: | 10751 |
| Attic: | Pull Down Stair |
| Built Before 1978 (Y/N): | No |
| Bath Amenities: | Separate Shower, Steam Shower, Double Sink, Soaking Tub |
| Basement Bathrooms (Y/N): | Yes |
| Bedrooms (Below Grade): | 1 |
| Basement Sq Ft: | 3,754 |
| Corporate Limits: | Lake Forest |
| Dining Room: | Separate |
| Disability Access And/Or Equipped: | No |
| Fireplace Location: | Family Room, Living Room, Master Bedroom |
| General Information: | School Bus Service, Commuter Train |
| Lot Size: | 1.0-1.99 Acres |
| Main Sq Ft: | 4735 |
| Master Association Fee Frequency: | Not Required |
| Market Code: | Active |
| Rebuilt (Y/N): | No |
| Rehab Year: | 2022 |
| Rehab (Y/N): | Yes |
| Rural (Y/N): | N |
| Offered For Sale Or Rent: | No |
| Special Assessments: | N |
| Is Parking Included In Price: | Yes |
| Special Service Area: | N |
| Total Finished/Unfinshed Sq Ft: | 11832 |
| Total Sq Ft: | 8078 |
| Type Detached: | 2 Stories |
| Tax Exemptions: | Homeowner |
| Update Date: | 2026-10-04T05:05:11 |
| Upper Sq Ft: | 3343 |
| Window Features: | Screens |
| Zero Lot Line: | No |
| Original List Price: | $4,950,000 |
| Other Equipment: | Security System, CO Detectors, Sump Pump, Sprinkler-Lawn, Backup Sump Pump;, Generator, Multiple Water Heaters |
| Ownership: | Fee Simple |
| Parcel Number: | 12341010230000 |
| Parking Features: | Asphalt, Heated Driveway, Garage Door Opener, Heated Garage, Yes, Garage Owned, Attached, Garage |
| Parking Total: | 6 |
| Possession: | Closing |
| Roof: | Metal |
| Rooms Total: | 16 |
| Room Type: | Bedroom 5, Bedroom 6, Den, Exercise Room, Family Room, Media Room, Office, Screened Porch, Sitting Room |
| Sewer: | Public Sewer |
| Special Listing Conditions: | List Broker Must Accompany |
| State Or Province: | IL |
| Tax Year: | 2025 |
| Township: | Shields |
| Water Source: | Lake Michigan |
| Exposure: | West |
| Actual Status: | Active |
| Lot Size Source: | County Records |
| Patio And Porch Features: | Patio, Porch, Screened |
| Activation Date: | 2026-09-28 |
| Pool Features: | In Ground |
| New Construction Y/N: | No |
| Habitable Residence?: | Yes |
| Flood Zone: | No |
Listing Courtesy of: Compass
Listing Agent: Lori Baker
(847) 863-1791
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Midwest Real Estate Data LLC data last updated on October 08, 2026 03:47 PM - CT
Based on information submitted to the MLS GRID as of October 08, 2026 03:47 PM - CT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. Some listings have been excluded from this website.
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Property Last Updated: October 08, 2026 03:47 PM - CT
