St. Charles County property record for 503 Mona Dr, O Fallon, MO 63366 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1 Baths |
| Architecture Style | Ranch |
| Year Built | Built 1964 |
| Square Footage | 864 sqft Living Area |
| Lot Size | 9,375 sqft (0.215 acres) |
| Garage | Attached, 440 sqft |
| Tax Bill | $2,254.00 (2025) |
| Primary APN | 225390A000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 5 Rooms |
| Building Area | 864 sqft Living Area |
| Gross Area | 2,168 sqft Gross Area |
| 1st Floor | 864 sqft 1st Floor |
| Basement Area | 864 sqft Basement |
| Stories | 1 Stories |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | Ranch Style |
| Exterior Material | Brick/Stone (Brick and/or Stone) Exterior |
| Roof Construction | Gable Roof Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 9,375 sqft (0.215 acres) |
| Depth X Width | 125 ft x 75 ft Depth x Width |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 440 sqft Garage |
| Porch | Open Porch |
| Porch Area | 273 sqft Porch |
| Cooling System | HVAC Cooling |
|---|---|
| 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 | 225390A000 |
|---|---|
| Street Address | 503 MONA DR |
| City | O FALLON |
| State | MO |
| Zip | 63366-1759 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | FOREST PK ADDN #2 LOT 117 |
| Legal Subdivision | FOREST PK ADDN #2 |
| Legal Lot Number | 117 |
| Jurisdiction | ST CHARLES MO |
| Minor Civil Division | O'FALLON |
| Census Blockgroup | 3 |
| Census Block | 3004 |
| Census Tract | 311602 |
Source: St. Charles County records · APN 225390A000
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 | 411 ROSE HILL WEST CT, SAINT PETERS, MO 63376-3725 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Feb 21, 2017 | Affidavit of Death, Transfer |
| Feb 21, 2017 | Grant Deed, Transfer |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Refreshed | Sep 20, 2026 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | Feb 21, 2017 |
| Property Address | 503 MONA DR, O FALLON, MO 63366-1759 |
| Document Number | 0067020686 |
| Book / Page | 006702 / 000686 |
| Instrument Date | Feb 16, 2017 |
| Instrument | 109810 |
| Transaction Type | Transfer |
| Record Updated | Feb 28, 2017 |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 503 MONA DR O FALLON MO 633661759, O FALLON, MO 63366-1759 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | Feb 21, 2017 |
| Property Address | 503 MONA DR, O FALLON, MO 63366-1759 |
| Document Number | 0067020688 |
| Book / Page | 006702 / 000688 |
| Instrument Date | Feb 16, 2017 |
| Instrument | 109820 |
| Transaction Type | Transfer |
| Record Updated | Mar 22, 2017 |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenant By Entirety |
| Address | 411 ROSE HILL WEST CT ST PETERS MO 633763725, ST PETERS, MO 63376-3725 |
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 | $34,803 (-) | $183,174 (-) Land $40,000 Building $143,174 | |
| 2025 | $2,254.00 | $34,803 (+5.03%) | $183,174 (+5.03%) Land $40,000 Building $143,174 |
| 2023 | $33,137 | ||
| 2022 | $174,406 Land $40,000 Building $134,406 |
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