Contra Costa County property record for 4529 Bison Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,918 sqft · built 1999 |
| Lot Size | 0.146 acres (6,360 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $206,000 (Sep 1999) |
| Tax Bill | $3,977 (2025) |
| Deeds & Mortgages | Mar 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 053-560-027-4 |
| Primary APN | 053-560-027-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,918 sqft Living Area |
| 1st Floor Area | 1,918 sqft |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Lot Area | 6,360 sqft (0.146 acres) |
| Garage Type | Attached |
| Garage Area | 610 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4529 BISON WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-7467 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7285 L745 |
| Legal Subdivision | SUBDIVISION 7285 |
| Legal Tract | 7285 |
| Legal Lot Number | 745 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 355111 |
4529 Bison Way is owned by two individuals who acquired it in December 2012.
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 | 145 CASTLE ROCK RD, WALNUT CREEK, CA 94598-4514 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 29, 1999 · Amount on File |
| Deed Sale | Sep 29, 1999 · Amount on File |
| Deed Document Number | 1999258840 |
| Last Transfer Date | Dec 27, 2012 |
| Transfer Doc | 0000334133 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4529 BISON WAY, ANTIOCH, CA 94531-7467 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TTL SANTA ANA |
| Name | Verified Name |
|---|---|
| Address | 1836 LYNVALE LN, WALNUT CREEK, CA 94597-2510 |
| Document Number | 0000069868 |
|---|---|
| Date | Mar 8, 2021 |
| Instrument | 2021-069868 |
| Name | BANK OF THE WEST |
|---|---|
| Type | Bank |
| Address | OMAHA, NE 68154 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 1, 2051 |
The 2025 property tax bill for 4529 Bison Way was $3,977.
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 | $324,965 (+2%) Land $78,374 Building $246,591 | |
| 2025 | $3,977.00 | $318,594 Land $76,838 Building $241,756 |
| 2023 | $3,735.00 (+1.52%) | $306,224 Land $73,855 Building $232,369 |
| 2022 | $3,679.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4529 Bison Way in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2010.
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 Claims | 1 (2010) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 2010 · other causes |
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 4529 Bison Way 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 536 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 Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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