St. Charles County property record for 431 Hembrock St, O Fallon, MO 63366
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 1 ba · 768 sqft · built 1948 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $1,365 (2022) |
| Flood Zone | Zone X (minimal risk) |
| APN | A850004319 |
| Primary APN | A850004319 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 768 sqft Living Area |
| Gross Area | 1,536 sqft |
| 1st Floor Area | 768 sqft |
| Basement Area | 768 sqft |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | Ranch |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Hip |
| Roof Material | Asphalt |
| Lot Area | 6,000 sqft (0.138 acres) |
| Lot Dimensions | 100 ft deep x 60 ft wide |
| Garage Type | Detached |
| Garage Area | 280 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
|---|---|
| Porch Area | 32 sqft |
| Deck Area | Deck Area |
| Patio Area | 50 sqft |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | A850004319 |
|---|---|
| Street Address | 431 HEMBROCK ST |
| City | O FALLON |
| State | MO |
| Zip | 63366-2506 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WOODLAWN ADDN BLK 4 W 1/2 LOTS 8 & 9 |
| Legal Subdivision | WOODLAWN ADDN-OFALLON |
| Legal Block | 4 |
| Legal Lot Number | 8 |
| Jurisdiction | ST CHARLES MO |
| Township / Civil Division | WENTZVILLE |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 311802 |
431 Hembrock St is held in a trust since February 2017.
Source: St. Charles County records, as of August 7, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 431 HEMBROCK ST, O FALLON, MO 63366-2506 |
| Owner Type | Company |
| Vesting | Trust, Irrevocable 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 | 2 Names on Deed |
|---|---|
| Last Sale | Feb 3, 2017 |
| Deed Sale | Feb 3, 2017 |
| Prior Sale | Sep 15, 2014 · Amount on File |
| Deed Document Number | 201776680 |
| Deed Book / Page | 6695 / 1678 |
| Prior Transfer Date | May 27, 2005 |
| Prior Transfer Doc | 0000607860 |
| Record Updated | Oct 29, 2026 |
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 | $25,796 (-) | $135,773 (-) Land $40,000 Building $95,773 | |
| 2025 | $25,796 | $135,773 Land $40,000 Building $95,773 | |
| 2023 | $23,397 (+24.33%) | ||
| 2022 | $1,365.00 | $18,818 | $123,142 (+24.33%) Land $35,000 Building $88,142 |
| 2021 | $99,041 Land $35,000 Building $64,041 |
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 431 Hembrock St in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1979.
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 (1979–1982) |
| Most Recent Claim | Dec 1982 · tidal / storm surge |
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 431 Hembrock St 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 99.1% of the US · lower than 98.2% of Missouri |
|---|---|
| Wildfire Likelihood | Under 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 234 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Gateway Fiber Fiber | 2,000 / 2,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
May also be available: AT&T, Brightspeed, Wisper ISP.
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