Contra Costa County property record for 511 W 4th St, Antioch, CA 94509 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1940 |
| Square Footage | 1,462 sqft Living Area |
| Lot Size | 5,000 sqft (0.115 acres) |
| Last Sale | $126,500 (2010) |
| Tax Bill | $2,394.00 (2025) |
| Primary APN | 066-143-012-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 1,462 sqft Living Area |
| 1st Floor | 1,462 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1880 |
|---|---|
| Effective Year Built | Effective 1940 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Cooling System | Central Cooling |
|---|
| Street Address | 511 W 4TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1246 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TOWN OF ANTIOCH LOT 3 BLK 22 |
| Legal Subdivision | ANTIOCH |
| Legal Block | 22 |
| Legal Lot Number | 3 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | ANTIOCH-PITTSBURG |
| Census Blockgroup | 3 |
| Census Block | 3046 |
| Census Tract | 305000 |
Source: Contra Costa County records · APN 066-143-012-4
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 | PO BOX 471983, SAN FRANCISCO, CA 94147-1983 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Single Person or Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 02, 2010 · Amount on Record |
| Deed Sale | Mar 02, 2010 · Amount on Record |
| Prior Sale | Jan 19, 2006 · Amount on Record |
| Deed Doc Number | 201041962 |
| Prior Transfer Date | Jan 11, 2006 |
| Prior Transfer Doc | 0000018711 |
| Record Refreshed | 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 | $166,539 (+2%) Land $39,491 Building $127,048 | |
| 2025 | $2,394.00 (+6.26%) | $163,274 (+4.04%) Land $38,717 Building $124,557 |
| 2023 | $2,253.00 (+1.35%) | $156,935 Land $37,214 Building $119,721 |
| 2022 | $2,223.00 |
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