Jefferson County property record for 643 Sun Valley N, Arnold, MO 63010
| Property Type | Single Family Home |
|---|---|
| Details | 1.5 ba · 1,878 sqft · built 1967 |
| Lot Size | 0.266 acres (11,582 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,550 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 018.028.02001029 |
| Primary APN | 018.028.02001029 |
|---|
| Full Baths | 1.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,878 sqft Living Area |
| Gross Area | 2,450 sqft |
| 1st Floor Area | 1,252 sqft |
| Basement Area | 626 sqft |
| Finished Basement | 626 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 1967 |
| Construction Type | Frame |
| Lot Area | 11,582 sqft (0.266 acres) |
| Lot Dimensions | 125 ft deep x 90 ft wide |
| Garage Type | Attached |
| Garage Area | 572 sqft |
| Porch | Open Frame Porch |
| Porch Area | 405 sqft |
| Patio Area | 156 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 643 SUN VLY N |
|---|---|
| City | ARNOLD |
| State | MO |
| Zip | 63010-2328 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CT1 |
| Legal Description | DORNSEIF TERRACE LOT 9 |
| Legal Subdivision | DORNSEIF TERRACE |
| Legal Block | 2 |
| Legal Lot Number | 9 |
| Jurisdiction | JEFFERSON MO |
| Township / Civil Division | ARNOLD |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 700111 |
Source: Jefferson County records, as of August 25, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 643 SUN VLY N, ARNOLD, MO 63010-2328 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Jefferson County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | Missouri |
| Municipality | Arnold City |
| County | Jefferson County |
| Unified School District | Fox C-6 School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $23,700 (-) Land $2,500 Building $21,200 | $125,000 (-) Land $13,200 Building $111,800 | |
| 2025 | $1,550.00 | $23,700 (+6.28%) Land $2,500 Building $21,200 | |
| 2024 | $125,000 (+6.66%) Land $13,200 Building $111,800 | ||
| 2023 | $1,550.00 | $22,300 Land $2,500 Building $19,800 | $117,200 Land $13,200 Building $104,000 |
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 File median of 10 policies |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 30 (1978–2019) |
| Claims Outside the SFHA | 4 of 30 |
| Most Recent Claim | Jun 2019 · Severe Storms, Tornadoes, And Flooding |
| Claims by Event |
|
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 99.8% of the US · lower than 99.6% of Missouri |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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 1 serves 21,113 people · EPA ID MO6024292 |
|---|---|
| Water Source | Purchased surface water from MO AMERICAN ST LOUIS ST CHARLES COUNTIES |
| Last State Inspection | Oct 2023 |
| Lead | 7 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 439 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon, Wisper ISP.
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