Contra Costa County property record for 3444 Serpentine Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,549 sqft · built 1980 |
| Lot Size | 0.174 acres (7,590 sqft) |
| Owner | Company Name on File |
| Last Sale | $210,000 (Jan 2010) |
| Tax Bill | $3,605 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 068-561-015-6 |
| Primary APN | 068-561-015-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 1,549 sqft Living Area |
| 1st Floor Area | 1,549 sqft |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1985 |
| Lot Area | 7,590 sqft (0.174 acres) |
| Garage Type | Attached |
| Garage Area | 462 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 3444 SERPENTINE DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-5181 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T05510 L0611 B EX 1/2 MR |
| Legal Tract | 05510 |
| Legal Lot Number | 611 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2022 |
| Census Tract | 308001 |
Source: Contra Costa County assessment roll, 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 | Company Name on File |
|---|---|
| Mailing Address | 3444 SERPENTINE DR, ANTIOCH, CA 94509-5181 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 14, 2010 · Amount on Record |
| Deed Sale | Jan 14, 2010 · Amount on Record |
| Prior Sale | Oct 23, 2009 · Amount on Record |
| Deed Document Number | 20108661 |
| Last Transfer Date | Jun 18, 2010 |
| Transfer Doc | 0000141179 |
| Record Updated | Sep 20, 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 | $276,476 (+2%) Land $46,074 Building $230,402 | |
| 2025 | $3,605.00 (+5.59%) | $271,056 (+4.04%) Land $45,171 Building $225,885 |
| 2023 | $3,414.00 (+1.49%) | $260,532 Land $43,418 Building $217,114 |
| 2022 | $3,364.00 |
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 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 645 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 |
| AT&T DSL | 100 / 20 |
May also be available: Verizon.
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