Jefferson County property record for 421 Keystone Dr, Fenton, MO 63026
| Property Type | Single Family Home |
|---|---|
| Details | 3 ba · 1,157 sqft · built 1999 |
| Lot Size | 0.519 acres (22,651 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $3,560 (2023) |
| Flood Zone | Zone X (minimal risk) |
| APN | 021.002.04001066 |
| Primary APN | 021.002.04001066 |
|---|
| Full Baths | 3 Baths |
|---|---|
| Stories | 2 Stories |
| Building Area | 1,157 sqft Living Area |
| 1st Floor Area | 1,209 sqft |
| 2nd Floor Area | 1,157 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1999 |
|---|---|
| Construction Type | Frame |
| Lot Area | 22,651 sqft (0.519 acres) |
| Garage Type | Attached |
| Garage Area | 462 sqft |
| Pool Type | In-Ground Pool |
|---|---|
| Porch | Porch |
| Porch Area | 68 sqft |
| Patio Area | 297 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 421 KEYSTONE DR |
|---|---|
| City | FENTON |
| State | MO |
| Zip | 63026-4890 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | PUD |
| Legal Description | WINTER VALLEY 3 LOT 334 |
| Legal Range | 05 |
| Legal Township | 43 |
| Legal Section | 02 |
| Legal Quarter | SE |
| Legal Subdivision | WINTER VALLEY 3 |
| Legal Block | 1 |
| Legal Lot Number | 334 |
| Jurisdiction | JEFFERSON MO |
| Township / Civil Division | ROCK |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 700213 |
Source: Jefferson County records, as of November 24, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 421 KEYSTONE DR, FENTON, MO 63026-4890 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 21, 2025 |
| Deed Sale | Aug 21, 2025 |
| Prior Sale | Mar 26, 2007 |
| Deed Document Number | 2025R-021046 |
| Record Updated | Jun 8, 2026 |
Source: Jefferson County assessment roll, as of May 31, 2025
| Type | Name |
|---|---|
| State | Missouri |
| County | Jefferson County |
| Unified School District | Fox C-6 School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $55,100 (+13.61%) Land $9,600 Building $45,500 | ||
| 2024 | $290,200 (+13.54%) Land $50,600 Building $239,600 | ||
| 2023 | $3,560.00 | $48,500 Land $7,700 Building $40,800 | $255,600 Land $40,700 Building $214,900 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 2, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 13 policies |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 2 (2015–2017) |
| Most Recent Claim | May 2017 · Severe Storms, Tornadoes, Straight-line Winds And Flooding |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 95% of the US · lower than 93% of Missouri |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | JEFFERSON COUNTY PWSD 3 serves 17,000 people · EPA ID MO6024294 |
|---|---|
| Water Source | Purchased surface water from MO AMERICAN ST LOUIS ST CHARLES COUNTIES |
| Last State Inspection | Dec 2024 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 433 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Wisper ISP.
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