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Coldwell Banker Realty-Gundaker
4030 Key Harbour, Lake St Louis, MO 63367
- $999,000
- 4
- BD
- 4
- BA
- 3,731
- SqFt
- List Price
- $999,000
- Days on Market
- 1
- MLS#
- 26065611
- Status
- COMING SOON
- Bedrooms
- 4
- Full baths
- 3
- Half-baths
- 1
- Living Sq. Ft
- 3,731
- Lot Size
- 24,393
- Acres
- 0.56
- Year Built
- 1996
- Subdivision
- Key Harbour Estate #3
- Municipality
- Lake St. Louis
- School District
- Wentzville R-IV
- County
- St. Charles
- Listing Type
- Single Family Residential
- Property Type
- Traditional
- Style Description
- Traditional
Property Description
Your next chapter…a lot more lifestyle! Just steps from the lake and conveniently situated off Lake Saint Louis Boulevard, 4030 Key Harbour Drive is a destination unto itself. Thoughtfully curated interiors and inviting entertaining spaces flow into an extraordinary outdoor oasis through a four-season room, private terraces, and covered and open-air patios. The home’s vintage of 1996 has been beautifully modernized with refined finishes and exceptional amenities. Twelve-foot ceilings and expansive gathering spaces lend scale to the main level and high design throughout offers sophisticated entertaining. A chef’s kitchen appointed with Wolf and Sub-Zero appliances, a striking stone hearth fireplace, a light-filled four-season room and a dedicated office enrich everyday living. The primary suite offers a private terrace, custom walk-in closet and a spa-inspired bath with heated floors, dual vanities, and a wet room featuring a steam shower and jetted tub. The lower level extends the home’s hospitality with an open family room, dining area and kitchen. Three additional bedrooms, two bathrooms and access to private patios offer flexibility for guests or multigenerational living. Beyond the French doors, meandering stone paths unfold into a remarkable landscape designed for recreation and repose. A resort-style pool framed by dramatic boulders and cascading waterfalls anchors the setting, complemented by a sport court, firepit lounge and a lovely garden walk. A three-car smart garage, circular drive and motor court complete the property. If having it all is what you want, look no further! Showings begin Thursday, 11/5/26. Open House Sunday 11/8/26 1-3!
Additional Information
- Elementary School
- Green Tree Elem.
- Jr. High School
- Wentzville South Middle
- Sr. High School
- Timberland High
- Garage Spaces
- 3
- Parking Description
- Additional Parking, Attached, Circular Driveway, Paved, Garage, Garage Door Opener, Garage Faces Side, Kitchen Level, Storage
- Basement Description
- Poured, Bathroom, Concrete, Daylight, Egress Window(s), Partial, French Drain, Walkout
- Lot Dimensions
- 93x293
- Lot Description
- Back Yard, Garden, Landscaped, Golf, Private, Scattered Woods, Secluded, Trees, Terraced Yard
- Appliances
- Stainless Steel Appliance(s), Gas Cooktop, ENERGY STAR Qualified Dishwasher, Disposal, Ice Maker, Microwave, Electric Oven, Double Oven, Range Hood, Built in Refrigerator, Wine Cooler, Wine Refrigerator, Bar Fridge
- Amenities
- Beach Access, Clubhouse, Common Ground, Lake, Park, Playground, Pool, Tennis Court(s)
- Cooling
- Ceiling Fan(s), Central Air, Electric
- Sewer
- Public Sewer
- Heating
- Forced Air, Natural Gas
- Water
- Public
- Selling Terms
- Cash, Conventional
Listing courtesy of Stephanie Oliver. Dielmann Sotheby's International Realty
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Listings courtesy of Mid America Regional Information Systems Internet Data Exchange as distributed by MLS GRID. 
Based on information submitted to the MLS GRID as of . All data is obtained from various sources and may not have been verified by broker of 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. Some listings have been excluded from this website.