Contra Costa County property record for 5233 Hansen Dr, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,796 sqft · built 2001 |
| Lot Size | 0.241 acres (10,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $600,000 (Aug 2016) |
| Tax Bill | $8,023 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 075-550-033-7 |
| Primary APN | 075-550-033-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,796 sqft Living Area |
| 1st Floor Area | 2,062 sqft |
| 2nd Floor Area | 1,734 sqft |
| Year Built | Built 2001 |
|---|---|
| Effective Year Built | Effective 2001 |
| Lot Area | 10,500 sqft (0.241 acres) |
| Garage Type | Attached |
| Garage Area | 546 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 5233 HANSEN DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8296 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A-2 |
| Legal Description | T8318 L299 |
| Legal Subdivision | BLACK DIAMOND ESTATES UNIT 7 |
| Legal Tract | 8318 |
| Legal Lot Number | 299 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 355118 |
Source: Contra Costa County records · APN 075-550-033-7
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 27972 LANGLEY PL, CASTAIC, CA 91384-4562 |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 05, 2016 · Amount on Record |
| Deed Sale | Aug 05, 2016 · Amount on Record |
| Prior Sale | May 30, 2008 · Amount on Record |
| Deed Document Number | 2016156992 |
| Prior Transfer Date | Jul 27, 2016 |
| Prior Transfer Doc | 0000156991 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $710,271 (+2%) Land $82,862 Building $627,409 | |
| 2025 | $8,023.00 (+5.97%) | $696,345 (+4.04%) Land $81,238 Building $615,107 |
| 2023 | $7,571.00 (+1.62%) | $669,308 Land $78,085 Building $591,223 |
| 2022 | $7,450.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | High above 79% of the US · above 56% of California |
|---|---|
| Wildfire Likelihood | 0.6% annual chance |
| Exposure | Indirect within ember reach |
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Unwired.
Based on FCC filings for 59 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF ANTIOCH serves 116,781 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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