Warren County property record for 18862 Spring Valley Dr, Marthasville, MO 63357
| Property Type | Rural Home |
|---|---|
| Lot Size | 4.4 acres (191,664 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $683 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-18.0-0-00-003.008.000 |
| Primary APN | 12-18.0-0-00-003.008.000 |
|---|
| Lot Area | 191,664 sqft (4.4 acres) |
|---|
| Deck Area | Deck Area |
|---|---|
| Shed | 1 Shed |
| Lean-To | 600 sqft |
| Utility Building | 1,280 sqft |
| Street Address | 18862 SPRING VALLEY DR |
|---|---|
| City | MARTHASVILLE |
| State | MO |
| Zip | 63357-2502 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | PT LOT 2, NW1/4 SEC 18 T45N R1W |
| Legal Lot Number | 2 |
| Jurisdiction | WARREN MO |
| Township / Civil Division | CHARRETTE |
| Census Block Group | 3 |
| Census Block | 3027 |
| Census Tract | 820203 |
Source: Warren County records · APN 12-18.0-0-00-003.008.000
Assessment roll updated May 31, 2025 · Last verified February 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 | 16881 SPRING VALLEY DR, MARTHASVILLE, MO 63357-2539 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 06, 2025 |
| Deed Sale | Aug 06, 2025 |
| Deed Document Number | 202504476 |
| Record Updated | Jun 08, 2026 |
Source: Warren County records · Assessment roll updated May 31, 2025 · Last verified February 2026
| Type | Name |
|---|---|
| State | Missouri |
| County | Warren County |
| Unified School District | Washington School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $683.00 | $11,554 (+13%) Land $4,693 Building $6,861 | $60,810 (+13%) Land $24,700 Building $36,110 |
| 2024 | $683.00 (+8.76%) | $10,225 (-) Land $4,153 Building $6,072 | |
| 2023 | $628.00 (+7.35%) | $10,225 (+8%) Land $4,153 Building $6,072 | $53,816 (+8%) Land $21,859 Building $31,957 |
| 2022 | $585.00 | $9,468 Land $3,846 Building $5,622 | |
| 2021 | $49,830 Land $20,240 Building $29,590 |
Source: FEMA National Flood Hazard Layer as of November 4, 2009 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
| Wildfire Risk | Moderate above 40% of the US · lower than 60% of Missouri |
|---|---|
| Wildfire Likelihood | 0.07% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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) |
|---|---|
| Starlink Satellite | 280 / 30 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| Brightspeed DSL | 100 / 10 |
May also be available: AT&T, BlueBit Networks, Gateway Fiber Holdings, Wisper ISP.
Based on FCC filings for 15 locations within half a mile of this property.
5G (outdoors only) and 4G LTE
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ST CHARLES COUNTY PWSD 2 WARREN serves 1,192 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2023 |
| Lead | 1 ppb (2021–2023) 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 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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