St. Charles County property record for 421 Round Tower Dr W, Saint Charles, MO 63304
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 2,460 sqft · built 1993 |
| Lot Size | 0.619 acres (27,007 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $350,000 (Aug 2015) |
| Tax Bill | $6,309 (2025) |
| Deeds & Mortgages | Jul 2020 Mortgage Mar 2019 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | A893001336 |
| Primary APN | A893001336 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,460 sqft Living Area |
| 1st Floor Area | 1,496 sqft |
| Basement Area | 1,464 sqft |
| Finished Basement | 504 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1993 |
|---|---|
| Architectural Style | Other |
| Exterior Material | Composition/Composite |
| Lot Area | 27,007 sqft (0.619 acres) |
| Garage Type | Attached |
| Parking Spaces | 3 Parking Spaces |
| Porch | Porch |
| Porch Area | 392 sqft |
| Patio Area | 144 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air |
| Sewer | Connected |
| Account Number | A893001336 |
|---|---|
| Old Parcel Number | A893001336 |
| Street Address | 421 ROUND TOWER DR W |
| City | SAINT CHARLES |
| State | MO |
| Zip | 63304-0815 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WINDSOR PL #1 LOT 33 |
| Legal Range | 03E |
| Legal Township | 46N |
| Legal Subdivision | WINDSOR PL #1 |
| Legal Lot Number | 33 |
| Jurisdiction | ST CHARLES MO |
| Township / Civil Division | DARDENNE |
| Census Block Group | 1 |
| Census Block | 1029 |
| Census Tract | 311740 |
Source: St. Charles County assessment roll, APN A893001336, as of July 1, 2025 · Last verified March 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 | 421 ROUND TOWER DR W, SAINT CHARLES, MO 63304-0815 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jul 20, 2020 | Deed of Trust, Mortgage · Conventional Mortgage CARROLLTON BANK |
| Mar 04, 2019 | Warranty Deed, Transfer CARROLLTON BK |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 06, 2015 · Amount on Record |
| Deed Sale | Aug 06, 2015 · Amount on Record |
| Deed Document Number | 0064011178 |
| Deed Book / Page | 6401 / 1178 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Property Address | 421 ROUND TOWER DR W, SAINT CHARLES, MO 63304-0815 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0073490968 |
|---|---|
| Date | Jul 20, 2020 |
| Book Page | 7349/968 |
| Instrument | 20200720000507640 |
| Name | CARROLLTON BANK |
|---|---|
| Type | Bank |
| Address | SAINT CHARLES, MO 63301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Aug 01, 2050 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | ST CHARLES MO |
| Recording Date | Mar 04, 2019 |
| Property Address | 421 ROUND TOWER DR W, SAINT CHARLES, MO 63304-0815 |
| Document Number | 0070421701 |
| Book / Page | 007042 / 001701 |
| Instrument Date | Feb 28, 2019 |
| Instrument | 96280 |
| Transaction Type | Transfer |
| Record Updated | Mar 26, 2019 |
| Title Company | US TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 421 ROUND TOWER DR W ST CHARLES MO 633040815, ST CHARLES, MO 63304-0815 |
| Document Number | 70421703 |
|---|---|
| Date | Mar 04, 2019 |
| Book Page | 007042/001703 |
| Instrument | 96290 |
| Name | CARROLLTON BK |
|---|---|
| Type | Bank |
| Address | SAINT CHARLES, MO 63301 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Mar 03, 2049 |
Source: St. Charles County assessment roll as of July 1, 2025 · Last verified March 2026
| Type | Name |
|---|---|
| State | Missouri |
| Municipality | Cottleville City |
| County | St. Charles County |
| Unified School District | Francis Howell R-III 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 | $6,309.00 | $102,590 (+10.87%) | $539,947 (+10.87%) Land $78,750 Building $461,197 |
| 2023 | $92,535 | ||
| 2022 | $487,029 Land $78,750 Building $408,279 |
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 291833117401, 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 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (2019) |
| Most Recent Claim | May 2019 · Severe Storms, Tornadoes, And Flooding |
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.6% 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, 180 locations within half a mile, as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| WH i3B Bidco LLC/WH i3B Topco Fiber | 8,000 / 8,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T, Wisper ISP.
Source: EPA Safe Drinking Water Information System, water system MO6024530, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ST CHARLES COUNTY PWSD 2 serves 100,587 people |
|---|---|
| Water Source | Purchased surface water from ST LOUIS CITY PWS |
| Last State Inspection | Aug 2023 |
| Also Mapped Here | MO AMERICAN ST LOUIS ST CHARLES COUNTIES |
| Lead | 2 ppb (2026) 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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