St. Charles County property record for 509 Twain Ln, O Fallon, MO 63366
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 4,050 sqft · built 2006 |
| Lot Size | 0.23 acres (10,019 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $503,737 (May 2022) |
| Tax Bill | $6,319 (2025) |
| Deeds & Mortgages | May 2022 Mortgage Jul 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | T020300615 |
| Primary APN | T020300615 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 4,050 sqft Living Area |
| Gross Area | 4,867 sqft |
| 1st Floor Area | 1,551 sqft |
| Basement Area | 1,379 sqft |
| Finished Basement | 1,262 sqft |
| Unfinished Basement | 117 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2006 |
|---|---|
| Effective Year Built | Effective 2006 |
| Architectural Style | Bi-Level |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 10,019 sqft (0.23 acres) |
| Garage Type | Attached |
| Garage Area | 700 sqft |
| Parking Spaces | 3 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 454 sqft |
| Heating Fuel | Gas |
|---|---|
| Sewer | Connected |
| Account Number | T020300615 |
|---|---|
| Street Address | 509 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 70 |
| Legal Subdivision | VLGS AT WALDON POND #5 |
| Legal Lot Number | 70 |
| Jurisdiction | ST CHARLES MO |
| Township / Civil Division | WENTZVILLE |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 311802 |
Source: St. Charles County records · APN T020300615
Assessment roll updated August 13, 2025 · Last verified April 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 | 509 TWAIN LN, O FALLON, MO 63366-7438 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| May 04, 2022 | Warranty Deed, Transfer · Conventional Mortgage MORTGAGE RESEARCH CENTER LLC |
| Jul 23, 2021 | Warranty Deed, Transfer · Conventional Mortgage FAMILY FINANCE MORTGAGE LLC |
| Jul 23, 2021 | Affidavit of Death of Joint Tenant, Transfer TITLE PARTNERS AGENCY LLC |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 04, 2022 · Amount on Record |
| Deed Sale | May 04, 2022 · Amount on Record |
| Prior Sale | Jul 23, 2021 · Amount on Record |
| Deed Document Number | 202225632 |
| Prior Transfer Date | Jul 19, 2021 |
| Prior Transfer Doc | 0000061875 |
| Record Updated | Jun 08, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | May 04, 2022 |
| Property Address | 509 TWAIN LN, O FALLON, MO 63366-7438 |
| Document Number | 0000025632 |
| Map Reference | MB 39 PG 4 |
| Instrument Date | Apr 28, 2022 |
| Instrument | 2022R-025632 |
| Transaction Type | Transfer |
| Record Updated | Jan 17, 2024 |
| Title Company | TITLE PARTNERS AGENCY LLC |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 3152 SEGESTA AVE, HENDERSON, NV 89044-1765 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 509 TWAIN LN, O FALLON, MO 63366-7438 |
| Document Number | 0000025633 |
|---|---|
| Date | May 04, 2022 |
| Instrument | 2022R-025633 |
| Name | MORTGAGE RESEARCH CENTER LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 01, 2052 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | Jul 23, 2021 |
| Property Address | 509 TWAIN LN, O FALLON, MO 63366-7438 |
| Document Number | 0000061876 |
| Map Reference | MB 39 PG 4 |
| Instrument Date | Jul 20, 2021 |
| Instrument | 2021R-061876 |
| Transaction Type | Transfer |
| Record Updated | Jan 17, 2024 |
| Title Company | TITLE PARTNERS AGENCY LLC |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 425 STONE BRIAR DR, RUSKIN, FL 33570-3221 |
| Name | Verified Name |
|---|---|
| Address | 509 TWAIN LN, O FALLON, MO 63366-7438 |
| Document Number | 0000061877 |
|---|---|
| Date | Jul 23, 2021 |
| Instrument | 2021R-061877 |
| Name | FAMILY FINANCE MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2051 |
| Document Type | Affidavit of Death of Joint Tenant |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | Jul 23, 2021 |
| Property Address | 509 TWAIN LN, O FALLON, MO 63366-7438 |
| Document Number | 0000061875 |
| Map Reference | MB 39 PG 4 |
| Instrument Date | Jul 19, 2021 |
| Instrument | 2021R-061875 |
| Transaction Type | Transfer |
| Record Updated | Jan 17, 2024 |
| Title Company | TITLE PARTNERS AGENCY LLC |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
Source: St. Charles County records · Assessment roll updated August 13, 2025 · Last verified April 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 |
|---|---|---|---|
| 2025 | $6,319.00 (+5.23%) | $98,752 (+8.37%) | $519,745 (+8.37%) Land $72,000 Building $447,745 |
| 2024 | $6,005.00 | ||
| 2023 | $91,122 | ||
| 2022 | $479,589 Land $49,500 Building $430,089 |
Source: FEMA National Flood Hazard Layer, St. Charles County (29183C), as of August 25, 2024 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 291833118023, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · 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 |
| 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 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 | 1,000 / 1,000 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Wisper ISP.
Based on FCC filings for 224 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system MO6010588, 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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