Effectively a 9-year-old house in Ballantrae, close to Greentree Elementary, LSL Blvd park, and has LSL Lake amenities. This stunning 1.5-story home, mostly rebuilt in 2016 after a fire in the garage, combines timeless elegance with modern comfort. The three-car side-entry garage adds both function and curb appeal. The Main level has beautiful hardwood floors that flow throughout the main living spaces. The luxurious kitchen offers custom white cabinets with crown molding, a center island, breakfast bar, stainless steel appliances, and a bright breakfast room with access to a covered deck overlooking the treed backyard. The main level features a luxury primary suite with a spa-like bath, a private office, a formal dining room, and a great room with a wood-burning fireplace and stacked stone accent wall. Upstairs, you will find three spacious bedrooms, two share a bathroom while the third has its own ensuite bath. The finished lower level expands your living space with a generous family room, wet bar, den, theatre room, plus a fifth bedroom and full bath — ideal for entertaining or hosting overnight guests. This home offers the perfect balance of style, comfort, and location.
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Listed by: Coldwell Banker Realty - Gundaker • Chad J Matlick • Contact: 314-280-1234
Bought with: Real Broker LLC
Price Unknown
503 Keswick Dr, Lake Saint Louis, MO 63367
5beds
3,033sqft
Single Family Residence
Built in 1998
0.47 Acres Lot
$739,200 Zestimate®
$--/sqft
$3,473 Estimated rent
Home value
$739,200
$687,000 - $791,000
$3,473/mo
Zestimate® history
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Wood-burning fireplaceTreed backyardCovered deckThree-car side-entry garageBeautiful hardwood floorsSpacious bedroomsStainless steel appliances
Zillow last checked:
Listing updated:
Listed by:
Chad J Matlick 314-280-1234,
Coldwell Banker Realty - Gundaker,
Saundra J Pogrelis 314-330-2121,
Coldwell Banker Realty - Gundaker
Bought with:
John Adams, 2017028971
Real Broker LLC
Source: MARIS,MLS#: 25054791
Originating MLS: St. Charles County Association of REALTORS
Originating MLS: St. Charles County Association of REALTORSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 5
- Full bathrooms: 4
- 1/2 bathrooms: 1
- Main level bathrooms: 2
- Main level bedrooms: 1
Primary bedroom
- Features: Floor Covering: Carpeting
- Level: Main
- Area: 255
- Dimensions: 17x15
Bedroom 2
- Features: Floor Covering: Carpeting
- Level: Second
- Area: 156
- Dimensions: 13x12
Bedroom 3
- Features: Floor Covering: Carpeting
- Level: Second
- Area: 196
- Dimensions: 14x14
Bedroom 4
- Features: Floor Covering: Carpeting
- Level: Second
- Area: 154
- Dimensions: 14x11
Bathroom 5
- Features: Floor Covering: Carpeting
- Level: Lower
- Area: 165
- Dimensions: 15x11
Breakfast room
- Features: Floor Covering: Wood
- Level: Main
- Area: 143
- Dimensions: 13x11
Den
- Features: Floor Covering: Carpeting
- Level: Lower
- Area: 168
- Dimensions: 14x12
Dining room
- Features: Floor Covering: Wood
- Level: Main
- Area: 182
- Dimensions: 14x13
Family room
- Features: Floor Covering: Carpeting
- Level: Lower
- Area: 361
- Dimensions: 19x19
Great room
- Features: Floor Covering: Wood
- Level: Main
- Area: 357
- Dimensions: 21x17
Kitchen
- Features: Floor Covering: Wood
- Level: Main
- Area: 156
- Dimensions: 13x12
Laundry
- Features: Floor Covering: Ceramic Tile
- Level: Main
- Area: 35
- Dimensions: 7x5
Media room
- Features: Floor Covering: Carpeting
- Level: Lower
- Area: 210
- Dimensions: 15x14
Office
- Features: Floor Covering: Wood
- Level: Main
- Area: 168
- Dimensions: 14x12
Heating
- Forced Air, Natural Gas, Zoned
Cooling
- Ceiling Fan(s), Central Air, Dual
Appliances
- Included: Stainless Steel Appliance(s), Electric Cooktop, Dishwasher, Disposal, Microwave, Built-In Electric Oven, Gas Water Heater
- Laundry: Main Level
Features
- Bar, Breakfast Bar, Breakfast Room, Ceiling Fan(s), Coffered Ceiling(s), Custom Cabinetry, Entrance Foyer, Granite Counters, High Speed Internet, Kitchen Island, Separate Dining, Separate Shower, Special Millwork, Two Story Entrance Foyer, Walk-In Closet(s), Walk-In Pantry, Wet Bar
- Flooring: Carpet, Ceramic Tile, Laminate
- Doors: Atrium Door(s), French Doors
- Basement: Partially Finished,Sleeping Area,Storage Space,Sump Pump,Walk-Out Access
- Number of fireplaces: 1
- Fireplace features: Great Room, Wood Burning
Interior area
- Total interior livable area: 3,033 sqft
- Finished area above ground: 3,033
Property
Parking
- Total spaces: 3
- Parking features: Attached, Garage, Garage Door Opener, Garage Faces Side
- Attached garage spaces: 3
Features
- Levels: One and One Half
- Patio & porch: Covered, Deck, Patio
Lot
- Size: 0.47 Acres
- Features: Cul-De-Sac, Sprinklers In Front, Sprinklers In Rear
Details
- Parcel number: 400567842000047.0000000
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Other
- Property subtype: Single Family Residence
Materials
- Brick, Vinyl Siding
Condition
- Year built: 1998
Utilities & green energy
- Electric: Other
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Cable Available, Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Community & HOA
Community
- Subdivision: Ballantrae #2
HOA
- Has HOA: Yes
- Amenities included: Clubhouse, Common Ground, Fitness Center, Golf Course, Lake, Marina, Pickleball Court(s), Picnic Area, Playground, Pool, Tennis Court(s)
- Services included: Clubhouse, Pool, Recreational Facilities
- HOA fee: $890 annually
- HOA name: LSL CA and Ballantrae
Location
- Region: Lake Saint Louis
Financial & listing details
- Tax assessed value: $631,723
- Annual tax amount: $8,216
- Date on market: 8/11/2025
- Cumulative days on market: 56 days
- Listing terms: Cash,Conventional,VA Loan
- Ownership: Private
- Electric utility on property: Yes
Price history
| Date | Event | Price |
|---|---|---|
| 10/30/2025 | Sold | -- |
Source:  MARIS #25054791 Report a problem | ||
| 10/6/2025 | Pending sale | $749,900$247/sqft |
Source: MARIS #25054791 Report a problem | ||
| 8/11/2025 | Listed for sale | $749,900+66.6%$247/sqft |
Source: MARIS #25054791 Report a problem | ||
| 4/5/2016 | Sold | -- |
Source: MARIS #16001948 Report a problem | ||
| 3/6/2016 | Pending sale | $450,000$148/sqft |
Source: Keller Williams - Chesterfield #16001948 Report a problem | ||
| 3/4/2016 | Listed for sale | $450,000$148/sqft |
Source: Keller Williams Realty Chester #16001948 Report a problem | ||
| 5/20/2003 | Sold | -- |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $8,998 +9.5% | $120,028 +0.3% |
| 2024 | $8,216 +0% | $119,728 |
| 2023 | $8,214 +29.1% | $119,728 +29.7% |
| 2022 | $6,364 | $92,312 |
| 2021 | -- | $92,312 +11.1% |
| 2020 | -- | $83,122 |
| 2019 | $6,678 | $83,122 +0% |
| 2018 | $6,678 +0.5% | $83,121 |
| 2017 | $6,647 +14.4% | $83,121 +16.7% |
| 2016 | $5,810 +18.8% | $71,240 |
| 2015 | $4,891 +10.1% | $71,240 +7.1% |
| 2014 | $4,444 | $66,502 |
| 2013 | -- | $66,502 -6.4% |
| 2012 | -- | $71,070 -4.6% |
| 2011 | -- | $74,490 |
| 2010 | -- | $74,490 |
| 2009 | -- | $74,490 -6.9% |
| 2008 | -- | $79,980 -77.6% |
| 2007 | -- | $357,530 |
| 2006 | -- | $357,530 |
| 2005 | -- | $357,530 -8% |
| 2004 | -- | $388,580 |
| 2003 | -- | $388,580 |
| 2002 | -- | -- |
| 2001 | -- | -- |
Find assessor info on the county website
Neighborhood: 63367
Nearby homes
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Nearby schools
GreatSchools rating
- 8/10Green Tree Elementary SchoolGrades: K-5Distance: 0.3 mi
- 7/10Wentzville South Middle SchoolGrades: 6-8Distance: 3.3 mi
- 9/10Timberland High SchoolGrades: 9-12Distance: 3.3 mi
Schools provided by the listing agent
- Elementary: Green Tree Elem.
- Middle: Wentzville South Middle
- High: Timberland High
Source: MARIS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$739,200
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Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$739,200
- Missouri
- Saint Charles County
- Lake Saint Louis
- 63367
- 503 Keswick Dr
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