Contra Costa County property record for 5425 Oneida Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 3,361 sqft · built 1999 |
| Lot Size | 0.154 acres (6,695 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $280,000 (Jan 2010) |
| Tax Bill | $4,436 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-470-030-2 |
| Primary APN | 055-470-030-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 3,361 sqft Living Area |
| 1st Floor Area | 1,700 sqft |
| 2nd Floor Area | 1,661 sqft |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 2000 |
| Lot Area | 6,695 sqft (0.154 acres) |
| Garage Type | Attached |
| Garage Area | 699 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 5425 ONEIDA WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-9045 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8164 L466 |
| Legal Tract | 8164 |
| Legal Lot Number | 466 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 303207 |
Source: Contra Costa 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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 1713 ARKELL RD, WALNUT CREEK, CA 94598-1210 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 13, 2010 · Amount on Record |
| Deed Sale | Jan 13, 2010 · Amount on Record |
| Prior Sale | Aug 28, 2008 · Amount on Record |
| Deed Document Number | 20107195 |
| Prior Transfer Date | Jan 5, 2007 |
| Prior Transfer Doc | 0000014637 |
| Record Updated | Oct 29, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $368,645 (+2%) Land $32,908 Building $335,737 | |
| 2025 | $4,436.00 (+6.35%) Homeowner's exemption | $361,417 (+4.04%) Land $32,263 Building $329,154 |
| 2023 | $4,171.00 (+1.53%) Homeowner's exemption | $347,384 Land $31,011 Building $316,373 |
| 2022 | $4,108.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| 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 | High above 73% of the US · above 49% of California |
|---|---|
| Wildfire Likelihood | 0.4% 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 | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| Lead | Under 1 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 331 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Verizon.
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