St. Charles County property record for 517 Twain Ln, O Fallon, MO 63366
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 3,062 sqft · built 2005 |
| Lot Size | 0.27 acres (11,761 sqft) |
| Owner | Trust Name on File |
| Last Sale | $245,000 (Feb 2012) |
| Tax Bill | $4,896 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | T020300613 |
| Primary APN | T020300613 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 3,062 sqft Living Area |
| Gross Area | 4,122 sqft |
| 1st Floor Area | 1,750 sqft |
| Basement Area | 1,750 sqft |
| Finished Basement | 1,312 sqft |
| Unfinished Basement | 438 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2005 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Ranch |
| Exterior Material | Brick/Stone |
| Lot Area | 11,761 sqft (0.27 acres) |
| Garage Type | Attached |
| Garage Area | 622 sqft |
| Parking Spaces | 3 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 504 sqft |
| Patio Area | 90 sqft |
| Heating Fuel | Gas |
|---|---|
| Sewer | Connected |
| Account Number | T020300613 |
|---|---|
| Street Address | 517 TWAIN LN |
| City | O FALLON |
| State | MO |
| Zip | 63366-7438 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | VLGS AT WALDEN POND #5 LOT 68 |
| Legal Subdivision | VLGS AT WALDON POND #5 |
| Legal Lot Number | 68 |
| Jurisdiction | ST CHARLES MO |
| Township / Civil Division | WENTZVILLE |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 311802 |
517 Twain Ln is owner-occupied and held in a trust since February 2012.
Source: St. Charles County records, as of August 7, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 517 TWAIN LN, O FALLON, MO 63366-7438 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Trust, Revocable Trust |
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 | Name on Deed |
|---|---|
| Last Sale | Feb 8, 2012 · Amount on File |
| Deed Sale | Feb 8, 2012 · Amount on File |
| Prior Sale | Dec 2, 2005 · Amount on File |
| Deed Document Number | 201292820 |
| Deed Book / Page | 5721 / 1521 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 517 Twain Ln was $4,896.
Source: St. Charles County assessment roll, as of August 7, 2026
| Type | Name |
|---|---|
| State | Missouri |
| County | St. Charles County |
| Municipality | O'Fallon City |
| Unified School District | Fort Zumwalt R-II School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $76,354 (-) | $401,862 (-) Building $401,862 | |
| 2025 | $4,896.00 | $76,354 | $401,862 |
| 2023 | $70,765 | ||
| 2022 | $372,448 Land $49,500 Building $322,948 |
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.
FEMA maps place 517 Twain Ln in Zone X, an area of minimal flood risk.
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 |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 1 in force |
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 517 Twain Ln is low, with 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 96% of the US · lower than 94% of Missouri |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
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 | OFALLON PWS serves 32,515 people · EPA ID MO6010588 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2024 |
| Lead | 2 ppb (2023–2025) 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 224 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Gateway Fiber Fiber | 2,000 / 2,000 |
| Spectrum Cable | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Wisper ISP.
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