St. Charles County property record for 509 Harmony Ln, O Fallon, MO 63366 · Last verified April 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1951 |
| Square Footage | 2,036 sqft Living Area |
| Lot Size | 11,264 sqft (0.259 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $334,827 (2024) |
| Tax Bill | $3,019.00 (2024) |
| Primary APN | 236910A000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 4 Rooms |
| Building Area | 2,036 sqft Living Area |
| Gross Area | 2,472 sqft Gross Area |
| 1st Floor | 1,236 sqft 1st Floor |
| Basement Area | 1,236 sqft Basement |
| Finished Basement | 800 sqft Finished |
| Unfinished Basement | 436 sqft Unfinished |
| Stories | 1 Stories |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Ranch Style |
| Exterior Material | Brick/Stone (Brick and/or Stone) Exterior |
| Roof Construction | Hip Roof Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 11,264 sqft (0.259 acres) |
| Depth X Width | 128 ft x 88 ft Depth x Width |
| Deck Area | Deck Area |
|---|---|
| Patio Area | 348 sqft Patio |
| Porch | Open Porch |
| Porch Area | 312 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|---|
| Heating Fuel | Gas Heating Fuel |
| Sewage | Sewage Connected |
| Water Source | Yes (Unknown Type) Water Source |
| Account Number | 236910A000 |
|---|---|
| Street Address | 509 HARMONY LN |
| City | O FALLON |
| State | MO |
| Zip | 63366-2729 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | PATTON SUB LOT 32 |
| Legal Subdivision | PATTON SUB |
| Legal Lot Number | 32 |
| Jurisdiction | ST CHARLES MO |
| Minor Civil Division | O'FALLON |
| Census Blockgroup | 1 |
| Census Block | 1024 |
| Census Tract | 311602 |
Source: St. Charles County records · APN 236910A000
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 | Individual Name on File |
|---|---|
| Mailing Address | 509 HARMONY LN, O FALLON, MO 63366-2729 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Apr 29, 2024 | Warranty Deed, Transfer · Conventional Mortgage FIRST STATE BANK OF ST CHARLES MO |
| Jun 20, 2023 | Warranty Deed, Transfer · Conventional Mortgage FIRST COMMUNITY CU |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 29, 2024 · Amount on Record |
| Deed Sale | Apr 29, 2024 · Amount on Record |
| Prior Sale | Jun 20, 2023 · Amount on Record |
| Record Refreshed | Jun 08, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | Apr 29, 2024 |
| Property Address | 509 HARMONY LN, O FALLON, MO 63366-2729 |
| Document Number | 0000016157 |
| Map Reference | MB 6 PG 20 |
| Instrument Date | Apr 24, 2024 |
| Instrument | 2024R-016157 |
| Transaction Type | Transfer |
| Record Updated | May 13, 2024 |
| Title Company | SYNERGY TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Zero or No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 5152 EICHELBERGER ST # ST1ST, ST1ST, SAINT LOUIS, MO 63109-3235 |
| Name | Verified Name |
|---|---|
| Address | 509 HARMONY LN, O FALLON, MO 63366-2729 |
| Document Number | 0000016158 |
|---|---|
| Date | Apr 29, 2024 |
| Instrument | 2024R-016158 |
| Name | FIRST STATE BANK OF ST CHARLES MO |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2054 |
| Document Number | 0000016159 |
|---|---|
| Date | Apr 29, 2024 |
| Instrument | 2024R-016159 |
| Name | MISSOURI HOUSING DEVELOPMENT COMMISSION |
|---|---|
| Type | Government Agency |
| Address | KANSAS CITY, MO 64105 |
| Type | Second Mortgage to Cover Down Payment |
|---|---|
| Amount | Amount Recorded |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | Jun 20, 2023 |
| Property Address | 509 HARMONY LN, O FALLON, MO 63366-2729 |
| Document Number | 0000023784 |
| Map Reference | MB 6 PG 20 |
| Instrument Date | Jun 15, 2023 |
| Instrument | 2023R-023784 |
| Transaction Type | Transfer |
| Record Updated | Jan 17, 2024 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 509 HARMONY LN, O FALLON, MO 63366-2729 |
| Document Number | 0000023785 |
|---|---|
| Date | Jun 20, 2023 |
| Instrument | 2023R-023785 |
| Name | FIRST COMMUNITY CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 01, 2053 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6% |
| Type Change Date | Jul 01, 2028 |
| Change Frequency | 5 Years |
| Min Rate At Change | 4% |
| Max Rate At Change | 8% |
| Index | 5-Year TN |
| Margin | 2 |
| Max Rate | 12% |
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 | $3,059.00 (+1.32%) | $47,461 (+4.32%) | $249,793 (+4.32%) Land $40,000 Building $209,793 |
| 2024 | $3,019.00 (+14.27%) | ||
| 2023 | $45,496 (+23.02%) | ||
| 2022 | $2,642.00 | $36,983 | $239,454 (+23.02%) Land $35,000 Building $204,454 |
| 2021 | $194,645 Land $35,000 Building $159,645 |
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