21 Keystone Ct, O Fallon, MO 63368 Property Records

St. Charles County property record for 21 Keystone Ct, O Fallon, MO 63368

Property Summary

Property TypeSingle Family Home
Details3 bd · 3 ba · 1,524 sqft · built 2002
Lot Size0.269 acres (11,761 sqft)
OwnerOwner Name on File
Last Sale$189,900 (Jul 2014)
Tax Bill$3,589 (2025)
Flood ZoneZone X (minimal risk)
APNT012500359

Property Details

APN / Parcel Number

Primary APNT012500359
Alternative APN
  • 2-0066-8563-00-0186.0000000

Interior

Bedrooms3 Beds
Full Baths3 Baths
Half Baths1 Half Bath
Total Rooms5 Rooms
Stories1 Story
Building Area1,524 sqft Living Area
1st Floor Area813 sqft
Basement Area767 sqft
Finished Basement506 sqft

Exterior

Year BuiltBuilt 2002
Architectural StyleOther
Exterior MaterialComposition/Composite
Lot Area11,761 sqft (0.269 acres)
TerrainRolling
Garage TypeAttached
Parking Spaces2 Parking Spaces
Patio Area180 sqft

Utilities, Heating & Cooling

SewerConnected

Location & Zoning

Account NumberT012500359
Old Parcel NumberT012500359
Street Address21 KEYSTONE CT
CityO FALLON
StateMO
Zip63368-6676
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionVLGS AT HUTCHINGS FARM #2 LOT 186
Legal SubdivisionVLGS AT HUTCHINGS FARM #2
Legal Lot Number186
JurisdictionST CHARLES MO
Township / Civil DivisionDARDENNE
Census Block Group4
Census Block4004
Census Tract311735

Owner

Source: St. Charles County assessment roll, as of July 1, 2025

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordOwner Name on File
Mailing Address21 KEYSTONE CT, O FALLON, MO 63368-6676
OccupancyOwner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Last SaleJul 23, 2014 · Amount on Record
Deed SaleJul 23, 2014 · Amount on Record
Prior SaleSep 9, 2003
Deed Document Number0062171096
Deed Book / Page6217 / 1096
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

Source: St. Charles County assessment roll, as of July 1, 2025

Property Jurisdictions

TypeName
StateMissouri
CountySt. Charles County
MunicipalityO'Fallon City
Unified School DistrictFort Zumwalt R-II School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$3,589.00 (+20.48%)$55,806 (+8.23%)$293,718 (+8.23%) Land $75,000 Building $218,718
2023$51,561 (+23.44%)
2022$2,979.00$41,771$271,373 (+23.44%) Land $55,000 Building $216,373
2021$219,847 Land $40,000 Building $179,847

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective August 25, 2024

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 99.1% of the US · lower than 98.2% of Missouri
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemST CHARLES COUNTY PWSD 2
serves 100,587 people · EPA ID MO6024530
Water SourcePurchased surface water from ST LOUIS CITY PWS
Last State InspectionAug 2023
Lead2 ppb (2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting1
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 520 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
WH i3B Bidco LLC/WH i3B Topco
Fiber
8,000 / 8,000
Spectrum
Cable
1,000 / 1,000
Wisper ISP
Fixed Wireless
400 / 30
Verizon
Fixed Wireless
300 / 20
T-Mobile USA
Fixed Wireless
100 / 20

May also be available: AT&T.

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