Contra Costa County property record for 5421 Oneida Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,041 sqft · built 1999 |
| Lot Size | 0.154 acres (6,695 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $240,000 (Jan 2000) |
| Tax Bill | $4,732 (2025) |
| Deeds & Mortgages | Jul 2026 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-470-029-4 |
| Primary APN | 055-470-029-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,041 sqft Living Area |
| 1st Floor Area | 2,041 sqft |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 2000 |
| Lot Area | 6,695 sqft (0.154 acres) |
| Garage Type | Attached |
| Garage Area | 565 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5421 ONEIDA WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-9045 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8164 L465 |
| Legal Subdivision | SUBDIVISION 8164 |
| Legal Tract | 8164 |
| Legal Lot Number | 465 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 303207 |
5421 Oneida Way is owner-occupied and held in a trust since January 2000.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 5421 ONEIDA WAY, ANTIOCH, CA 94531-9045 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 20, 2000 · Amount on File |
| Deed Sale | Jan 20, 2000 · Amount on File |
| Deed Document Number | 200012524 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 6, 2026 |
| Property Address | 5421 ONEIDA WAY, ANTIOCH, CA 94531-9045 |
| Document Number | 0000070460 |
| Instrument Date | Jun 11, 2026 |
| Instrument | 202670460 |
| Transaction Type | Transfer |
| Record Updated | Jul 13, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 5421 ONEIDA WAY, ANTIOCH, CA 94531-9045 |
The 2025 property tax bill for 5421 Oneida Way was $4,732.
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 | $390,180 (+2%) Land $109,728 Building $280,452 | |
| 2025 | $4,732.00 | $382,530 Land $107,577 Building $274,953 |
| 2023 | $4,382.00 (+1.53%) Homeowner's exemption | $367,677 Land $103,400 Building $264,277 |
| 2022 | $4,316.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 5421 Oneida Way in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 5421 Oneida Way is high, ranking above 73% of the US, with a 0.4% annual chance of wildfire.
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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures