Contra Costa County property record for 4431 Folsom Dr, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,772 sqft · built 1991 |
| Lot Size | 0.183 acres (7,980 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $200,000 (Nov 1999) |
| Tax Bill | $3,922 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 053-391-003 |
| Primary APN | 053-391-003 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,772 sqft Living Area |
| 1st Floor Area | 1,772 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Architectural Style | Contemporary |
| Lot Area | 7,980 sqft (0.183 acres) |
| Garage Type | Attached |
| Garage Area | 438 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Street Address | 4431 FOLSOM DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8214 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T6925 L534 |
| Legal Subdivision | SUBDIVISION 6925 |
| Legal Tract | 6925 |
| Legal Lot Number | 534 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1021 |
| Census Tract | 308002 |
4431 Folsom Dr is owner-occupied and held in a trust since November 1999.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 4431 FOLSOM DR, ANTIOCH, CA 94531-8214 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | 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 | Nov 18, 1999 · Amount on File |
| Deed Sale | Nov 18, 1999 · Amount on File |
| Deed Document Number | 1999303423 |
| Prior Transfer Date | Apr 19, 1997 |
| Prior Transfer Doc | 0000121029 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4431 Folsom Dr was $3,922 with a homeowner's exemption.
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 | $316,184 (+2%) Land $78,374 Building $237,810 | |
| 2025 | $3,922.00 Homeowner's exemption | $309,986 Land $76,838 Building $233,148 |
| 2023 | $3,686.00 (+1.49%) Homeowner's exemption | $297,951 Land $73,855 Building $224,096 |
| 2022 | $3,632.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4431 Folsom 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 | 2 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.
The area around 4431 Folsom Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 550 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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