Contra Costa County property record for 4524 Bison Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,706 sqft · built 1999 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $778,000 (Apr 2022) |
| Tax Bill | $4,170 (2025) |
| Deeds & Mortgages | Apr 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 053-560-034 |
| Primary APN | 053-560-034 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,706 sqft Living Area |
| 1st Floor Area | 1,473 sqft |
| 2nd Floor Area | 1,233 sqft |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Attached |
| Garage Area | 630 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 4524 BISON WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-7468 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7285 L752 |
| Legal Subdivision | SUBDIVISION 7285 |
| Legal Tract | 7285 |
| Legal Lot Number | 752 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 355111 |
4524 Bison Way is owned and occupied by two individuals who bought it in April 2022.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4524 BISON WAY, ANTIOCH, CA 94531-7468 |
| 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 | Apr 13, 2022 · Amount on File |
| Deed Sale | Apr 13, 2022 · Amount on File |
| Prior Sale | Jun 18, 2009 · Amount on File |
| Deed Document Number | 202264417 |
| Prior Transfer Date | May 16, 2007 |
| Prior Transfer Doc | 0000149188 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 13, 2022 |
| Property Address | 4524 BISON WAY, ANTIOCH, CA 94531-7468 |
| Document Number | 0000064417 |
| Map Reference | MB 404 PG 37 |
| Instrument Date | Apr 8, 2022 |
| Instrument | 2022-064417 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4524 BISON WAY, ANTIOCH, CA 94531-7468 |
| Document Number | 0000064418 |
|---|---|
| Date | Apr 13, 2022 |
| Instrument | 2022-064418 |
| Name | AMERICAN PACIFIC MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2052 |
The 2025 property tax bill for 4524 Bison Way was $4,170 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 | $350,747 (+2%) Land $135,304 Building $215,443 | |
| 2025 | $4,170.00 Homeowner's exemption | $343,870 Land $132,651 Building $211,219 |
| 2023 | $3,914.00 (+7.29%) Homeowner's exemption | $330,518 Land $127,500 Building $203,018 |
| 2022 | $3,648.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 4524 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 4524 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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