Discover the perfect setting for your dream home on this picturesque 3.2377-acre lot tucked away on a private cul-de-sac. The property offers the best of both worlds—peaceful wooded views at the back and an open meadow through the trees which would be a wonderful setting for a pavilion retreat area. Nestled within the sought-after Castle Rock community, you’ll be surrounded by nature, privacy, and stunning custom-built homes. Bax Custom Homes is the exclusive builder for the subdivision, ensuring quality craftsmanship and timeless design throughout the neighborhood. Don’t miss this rare opportunity to design and build your forever home in one of the area’s most desirable settings.
Closed
Listed by: Berkshire Hathaway HomeServices Select Properties • Susan C Eilers • Contact: 314-607-9631
Bought with: Berkshire Hathaway HomeServices Select Properties
Price Unknown
421 Knights Valley Ct, O'Fallon, MO 63366
0beds
--baths
3.24Acres
Unimproved Land
Built in ----
3.24 Acres Lot
$-- Zestimate®
$--/sqft
$2,426 Estimated rent
Home value
Not available
Estimated sales range
Not available
$2,426/mo
Zestimate® history
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List your homeWhat's special
Peaceful wooded viewsSurrounded by natureOpen meadowPrivate cul-de-sac
Zillow last checked:
Listing updated:
Listed by:
Susan C Eilers 314-607-9631,
Berkshire Hathaway HomeServices Select Properties,
Jordan Eilers 314-607-6278,
Berkshire Hathaway HomeServices Select Properties
Bought with:
Susan C Eilers, 1999084545
Berkshire Hathaway HomeServices Select Properties
Source: MARIS,MLS#: 25066876
Originating MLS: St. Charles County Association of REALTORS
Originating MLS: St. Charles County Association of REALTORSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 0
Property
Features
- Fencing: None
Lot
- Size: 3.24 Acres
- Dimensions: 3.2377 lot - two parcels
- Features: Adjoins Open Ground, Adjoins Wooded Area, Cul-De-Sac, Level, Many Trees, Meadow, Pie Shaped Lot, Pond on Lot
Details
- Parcel number: 20022C732000016.0000000
- Zoning: Single-Family
- Special conditions: Standard
Community & HOA
Community
- Subdivision: Castle Rock
HOA
- Has HOA: Yes
- Amenities included: Common Ground
- Services included: Common Area Maintenance
- HOA fee: $750 annually
- HOA name: Castle Rock
Location
- Region: Ofallon
Financial & listing details
- Tax assessed value: $649
- Annual tax amount: $5
- Date on market: 10/1/2025
- Cumulative days on market: 22 days
- Listing terms: Cash,Conventional
Price history
| Date | Event | Price |
|---|---|---|
| 11/20/2025 | Sold | -- |
Source:  MARIS #25066876 Report a problem | ||
| 10/23/2025 | Pending sale | $235,000 |
Source: MARIS #25066876 Report a problem | ||
| 10/1/2025 | Listed for sale | $235,000 |
Source: MARIS #25066876 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $5 +4.1% | $78 |
| 2024 | $5 +0.2% | $78 |
| 2023 | $5 -7% | $78 |
| 2022 | $5 | $78 |
| 2021 | -- | $78 |
| 2020 | -- | $78 |
| 2019 | -- | $78 |
Find assessor info on the county website
Neighborhood: 63366
Nearby homes
- $718,3004 bd2 ba2.3k sqft834 Highway Y, O'Fallon, MO 63366Off Market
- $1,2323.042 Acres231 Castle Crest Ct, O'Fallon, MO 63366Off Market
- $608,3003 bd5 ba2.7k sqft840 Highway Y, O'Fallon, MO 63366Off Market
- $1,652,6003 bd5 ba4.3k sqft411 Knights Valley Ct, O'Fallon, MO 63366Off Market
- $849,7003 bd3 ba3.1k sqft830 Highway Y, O'Fallon, MO 63366Off Market
- $1,237,8003 bd3 ba3.2k sqft534 Castle Rock Bend Dr #O, O'Fallon, MO 63366Off Market
- $1,745,8003 bd4 ba4.2k sqft221 Castle Crest Ct, O'Fallon, MO 63366Off Market
- $1,687,8004 bd5 ba5.6k sqft410 Knights Valley Ct, O'Fallon, MO 63366Off Market
Nearby schools
GreatSchools rating
- 5/10Mount Hope Elementary SchoolGrades: K-5Distance: 2 mi
- 8/10Ft. Zumwalt North Middle SchoolGrades: 6-8Distance: 4.6 mi
- 9/10Ft. Zumwalt North High SchoolGrades: 9-12Distance: 4.3 mi
Schools provided by the listing agent
- Elementary: Mount Hope Elem.
- Middle: Ft. Zumwalt North Middle
- High: Ft. Zumwalt North High
Source: MARIS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
- Missouri
- Saint Charles County
- Saint Paul
- 63366
- 421 Knights Valley Ct
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