St. Charles County property record for 121 Keystone Crossing Dr, O Fallon, MO 63368
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,776 sqft · built 1998 |
| Lot Size | 0.27 acres (11,761 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $77,500 (Feb 2012) |
| Tax Bill | $4,200 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | T991700072 |
| Primary APN | T991700072 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,776 sqft Living Area |
| Gross Area | 3,878 sqft |
| 1st Floor Area | 1,776 sqft |
| Basement Area | 1,702 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1998 |
| Architectural Style | Ranch |
| Exterior Material | Brick/Stone |
| Lot Area | 11,761 sqft (0.27 acres) |
| Garage Type | Attached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 84 sqft |
| Patio Area | 375 sqft |
| Heating Fuel | Gas |
|---|---|
| Sewer | Connected |
| Account Number | T991700072 |
|---|---|
| Street Address | 121 KEYSTONE CROSSING DR |
| City | O FALLON |
| State | MO |
| Zip | 63368-6777 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | KEYSTONE CROSSING #1 LOT 128 |
| Legal Subdivision | KEYSTONE CROSSING #1 |
| Legal Lot Number | 128 |
| Jurisdiction | ST CHARLES MO |
| Township / Civil Division | LAKE ST. LOUIS |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 311153 |
121 Keystone Crossing Dr is owned and occupied by two individuals who bought it in February 2012.
Source: St. Charles County records, as of August 7, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 121 KEYSTONE CROSSING DR, O FALLON, MO 63368-6777 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 29, 2012 · Amount on File |
| Deed Sale | Feb 29, 2012 · Amount on File |
| Prior Sale | Dec 9, 1998 · Amount on File |
| Deed Document Number | 2012145060 |
| Deed Book / Page | 5732 / 1916 |
| Prior Transfer Date | Oct 25, 2008 |
| Prior Transfer Doc | 0050690855 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 121 Keystone Crossing Dr was $4,200, up 8.9% from the year before.
Source: St. Charles County assessment roll, as of August 7, 2026
| Type | Name |
|---|---|
| State | Missouri |
| County | St. Charles County |
| Unified School District | Wentzville R-IV School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $67,666 (-) | $356,139 (-) Land $70,000 Building $286,139 | |
| 2025 | $4,200.00 (+8.89%) | $67,666 | $356,139 Land $70,000 Building $286,139 |
| 2024 | $3,857.00 | ||
| 2023 | $60,395 | ||
| 2022 | $317,869 Land $60,000 Building $257,869 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 121 Keystone Crossing Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2006.
Source: FEMA National Flood Hazard Layer, effective August 25, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 2 (2006–2008) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Sep 2008 · Severe Storms, Flooding, And A Tornado |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 121 Keystone Crossing Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 96% of Missouri |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | ST CHARLES COUNTY PWSD 2 serves 100,587 people · EPA ID MO6024530 |
|---|---|
| Water Source | Purchased surface water from ST LOUIS CITY PWS |
| Last State Inspection | Aug 2023 |
| Lead | 2 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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.
Source: FCC Broadband Data Collection, based on 353 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Wisper ISP Fixed Wireless | 400 / 30 |
May also be available: AT&T, Brightspeed, Gateway Fiber, i3 Broadband, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures