Contra Costa County property record for 5221 Walker Ct, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,851 sqft · built 1993 |
| Lot Size | 0.137 acres (5,985 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $6,540 (2025) |
| Deeds & Mortgages | Dec 2023 Transfer Oct 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-200-042-2 |
| Primary APN | 056-200-042-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 1,851 sqft Living Area |
| 1st Floor Area | 1,069 sqft |
| 2nd Floor Area | 782 sqft |
| Year Built | Built 1993 |
|---|---|
| Effective Year Built | Effective 1993 |
| Lot Area | 5,985 sqft (0.137 acres) |
| Garage Type | Attached |
| Garage Area | 675 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5221 WALKER CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8458 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7606 L341 |
| Legal Subdivision | SUBDIVISION 7606 |
| Legal Tract | 7606 |
| Legal Lot Number | 341 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 303207 |
Source: Contra Costa County records · APN 056-200-042-2
Assessment roll updated July 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 1005 AILEEN ST, EMERYVILLE, CA 94608-2707 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Dec 28, 2023 | Intrafamily Transfer, Transfer |
| Oct 19, 2023 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Oct 12, 2023 |
| Transfer Doc | 0000103161 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 28, 2023 |
| Property Address | 5221 WALKER CT, ANTIOCH, CA 94531-8458 |
| Document Number | 0000136247 |
| Map Reference | MB 360 PG 29 |
| Instrument Date | Nov 10, 2023 |
| Instrument | 2023-136247 |
| Transaction Type | Transfer |
| Record Updated | Jan 08, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1005 AILEEN ST, OAKLAND, CA 94608-2707 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 19, 2023 |
| Property Address | 5221 WALKER CT, ANTIOCH, CA 94531-8458 |
| Document Number | 0000103161 |
| Map Reference | MB 360 PG 29 |
| Instrument Date | Oct 17, 2023 |
| Instrument | 2023-103161 |
| Transaction Type | Transfer |
| Record Updated | Oct 27, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1005 AILEEN ST, OAKLAND, CA 94608-2707 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 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 | $568,909 (+2%) Land $167,325 Building $401,584 | |
| 2025 | $6,540.00 (-48.45%) | $557,755 (+75.72%) Land $164,045 Building $393,710 |
| 2023 | $12,687.00 (+229.96%) | $317,420 Land $83,303 Building $234,117 |
| 2022 | $3,845.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 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 |
| Wildfire Risk | Moderate above 40% of the US · lower than 76% of California |
|---|---|
| Wildfire Likelihood | 0.06% annual chance |
| Exposure | Indirect within ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: NPS National Register of Historic Places as of August 1, 2026 · Last verified October 2026
| Historic District | Within the Shannon-Williamson Ranch listed 1987 · 12 contributing resources · NRIS 87000003 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
Based on FCC filings for 782 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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