St. Charles County property record for 510 Westhoff Ave, O Fallon, MO 63366
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,145 sqft · built 1950 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $130,000 (Feb 2000) |
| Tax Bill | $1,770 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 255510A000 |
| Primary APN | 255510A000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,145 sqft Living Area |
| Gross Area | 2,290 sqft |
| 1st Floor Area | 1,145 sqft |
| Basement Area | 1,145 sqft |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Ranch |
| Exterior Material | Siding |
| Lot Area | 6,000 sqft (0.138 acres) |
| Lot Dimensions | 120 ft deep x 50 ft wide |
| Porch | Open Porch |
| Porch Area | 40 sqft |
| Patio Area | 96 sqft |
| Heating Fuel | Gas |
|---|---|
| Sewer | Connected |
| Account Number | 255510A000 |
|---|---|
| Street Address | 510 WESTHOFF AVE |
| City | O FALLON |
| State | MO |
| Zip | 63366-2526 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AE9 |
| Legal Description | WOODLAWN ADDN BLK 3 LOT 11 |
| Legal Subdivision | WOODLAWN ADDN-OFALLON |
| Legal Block | 3 |
| Legal Lot Number | 11 |
| Jurisdiction | ST CHARLES MO |
| Township / Civil Division | WENTZVILLE |
| Census Block Group | 2 |
| Census Block | 2036 |
| Census Tract | 311802 |
Source: St. Charles County records · APN 255510A000
Assessment roll updated August 7, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 1094, O FALLON, MO 63366-8794 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Feb 07, 2000 · Amount on Record |
| Deed Sale | Feb 07, 2000 · Amount on Record |
| Deed Document Number | 20007481 |
| Deed Book / Page | 2359 / 1121 |
| Prior Transfer Date | Feb 04, 2000 |
| Prior Transfer Doc | 0000007481 |
| Record Updated | Sep 20, 2026 |
Source: St. Charles County records · Assessment roll updated August 7, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | Missouri |
| County | St. Charles County |
| Municipality | O'Fallon City |
| Unified School District | Fort Zumwalt R-II School District (PK - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $27,196 (-) | $143,137 (-) Land $40,000 Building $103,137 | |
| 2025 | $1,770.00 | $27,196 (+3.35%) | $143,137 (+3.35%) Land $40,000 Building $103,137 |
| 2023 | $26,314 | ||
| 2022 | $138,493 Land $35,000 Building $103,493 |
Source: FEMA National Flood Hazard Layer as of August 25, 2024 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 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 |
| Nearby Flood Claims | 5 (1979–2015) |
| Claims Outside the SFHA | 3 of 5 |
| Most Recent Claim | Dec 2015 · Severe Storms, Tornadoes, Straight-line Winds, And Flooding |
| Wildfire Risk | Low lower than 97% of the US · lower than 95% of Missouri |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Gateway Fiber Holdings 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.
Based on FCC filings for 234 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | OFALLON PWS serves 32,515 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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