Yuba County property record for 18147 Old Knox Rd, Challenge, CA 95925
| Property Type | Single Family Home |
|---|---|
| Details | 128 sqft · built 1971 |
| Lot Size | 0.182 acres (7,928 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $368 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 050-140-021-000 |
| Primary APN | 050-140-021-000 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 128 sqft Living Area |
| Year Built | Built 1971 |
|---|---|
| Effective Year Built | Effective 1971 |
| Lot Area | 7,928 sqft (0.182 acres) |
| Sewer | Septic |
|---|
| Old Parcel Number | 050-140-021 |
|---|---|
| Street Address | 18147 OLD KNOX RD |
| City | CHALLENGE |
| State | CA |
| Zip | 95925 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A/RR |
| Legal Description | PTN SW1/4 SEC 20 TWP 19 RGE 7 |
| Jurisdiction | YUBA CA |
| Township / Civil Division | YUBA FOOTHILLS |
| Census Block Group | 1 |
| Census Block | 1100 |
| Census Tract | 41101 |
Source: Yuba County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | 14830 ENCENDIDO, SAN DIEGO, CA 92127-3811 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Apr 13, 2011 |
| Transfer Doc | 0000005263 |
| Record Updated | Sep 20, 2026 |
Source: Yuba County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Yuba County |
| Unified School District | Marysville Joint Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $27,986 (+2%) Land $22,613 Building $5,373 | |
| 2025 | $368.00 (+12.88%) | $27,438 (+4.03%) Land $22,170 Building $5,268 |
| 2023 | $326.00 (+1.24%) | $26,374 Land $21,310 Building $5,064 |
| 2022 | $322.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective June 5, 2024
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Extreme above 98.8% of the US · above 91% of California |
|---|---|
| Wildfire Likelihood | 3% annual chance |
| Exposure | Direct burnable vegetation |
Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.
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 | NORTH YUBA WATER DISTRICT serves 2,772 people · EPA ID CA5810006 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Oct 2023 |
| Lead | 2 ppb (2022–2024) 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 34 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| DigitalPath Fixed Wireless | 200 / 20 |
No cell data coverage reported
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