Contra Costa County property record for 5032 Union Mine Dr, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,467 sqft · built 1997 |
| Lot Size | 0.2 acres (8,720 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $260,000 (Nov 2009) |
| Tax Bill | $4,238 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 075-490-040-5 |
| Primary APN | 075-490-040-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,467 sqft Living Area |
| 1st Floor Area | 2,467 sqft |
| Year Built | Built 1997 |
|---|---|
| Effective Year Built | Effective 1998 |
| Lot Area | 8,720 sqft (0.2 acres) |
| Garage Type | Attached |
| Garage Area | 672 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 5032 UNION MINE DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8054 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7644 L71 |
| Legal Tract | 7644 |
| Legal Lot Number | 71 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 355118 |
5032 Union Mine Dr is owned by two individuals who acquired it in October 2016.
Source: Contra Costa County records, as of July 14, 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 | 40 STANTON CT, DANVILLE, CA 94506-6148 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 9, 2009 · Amount on File |
| Deed Sale | Nov 9, 2009 · Amount on File |
| Prior Sale | Jun 17, 2009 · Amount on File |
| Deed Document Number | 2009266720 |
| Last Transfer Date | Oct 12, 2016 |
| Transfer Doc | 0000213546 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 5032 Union Mine Dr was $4,238.
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 | $342,309 (+2%) Land $46,074 Building $296,235 | |
| 2025 | $4,238.00 | $335,598 Land $45,171 Building $290,427 |
| 2023 | $3,986.00 (+1.48%) | $322,568 Land $43,418 Building $279,150 |
| 2022 | $3,928.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 5032 Union Mine Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · 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 |
| Nearby Flood Policies | 1 in force |
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.
Wildfire risk around 5032 Union Mine Dr is moderate, ranking above 56% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 56% of the US · lower than 66% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within 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 | 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 260 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Unwired, Verizon.
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