Contra Costa County property record for 3301 Serpentine Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,814 sqft · built 1980 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $153,000 (Mar 1996) |
| Tax Bill | $3,338 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 068-573-009-5 |
| Primary APN | 068-573-009-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,814 sqft Living Area |
| Gross Area | 2,255 sqft |
| 1st Floor Area | 1,016 sqft |
| 2nd Floor Area | 798 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1981 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Material | Wood Shingle |
| Lot Area | 7,500 sqft (0.172 acres) |
| Lot Dimensions | 100 ft deep x 75 ft wide |
| Garage Type | Attached |
| Garage Area | 441 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 3301 SERPENTINE DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-5180 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T05510 L0652 B EX 1/2 MR |
| Legal Subdivision | MAP OF SUBDIVISION 5510 |
| Legal Tract | 05510 |
| Legal Lot Number | 652 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 308001 |
3301 Serpentine Dr is owned and occupied by two individuals who bought it in March 1996.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3301 SERPENTINE DR, ANTIOCH, CA 94509-5180 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Mar 19, 1996 · Amount on File |
| Deed Sale | Mar 19, 1996 · Amount on File |
| Deed Document Number | 199648923 |
| Prior Transfer Date | Jan 19, 1994 |
| Prior Transfer Doc | 0000054885 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 3301 Serpentine Dr was $3,338 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 | $259,225 (+2%) Land $50,816 Building $208,409 | |
| 2025 | $3,338.00 Homeowner's exemption | $254,143 Land $49,820 Building $204,323 |
| 2023 | $3,155.00 (+1.51%) Homeowner's exemption | $244,277 Land $47,887 Building $196,390 |
| 2022 | $3,108.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3301 Serpentine Dr in Zone X, an area of moderate flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 3301 Serpentine 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 613 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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