Contra Costa County property record for 320 E 18th St, Antioch, CA 94509 · Last verified July 2026
| Property Type | Commercial > Office > Commercial Office |
|---|---|
| Year Built | Built 1993 |
| Square Footage | 4,991 sqft Gross Area |
| Lot Size | 13,068 sqft (0.3 acres) |
| Last Sale | $565,000 (2015) |
| Tax Bill | $7,794.00 (2025) |
| Primary APN | 068-511-015-7 |
|---|---|
| Alternative APN |
|
| Total Rooms | 6 Rooms |
|---|---|
| Building Area | 4,991 sqft Gross Area |
| 1st Floor | 4,991 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1993 |
| Lot Area | 13,068 sqft (0.3 acres) |
| Street Address | 320 E 18TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-2451 |
| Property Usage | Commercial Property Usage |
| Type | Commercial > Office > Commercial Office |
| Legal Description | POR SEC 19 T2N R2E |
| Legal Range | 02E |
| Legal Township | 02N |
| Legal Section | 19 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | ANTIOCH-PITTSBURG |
| Census Blockgroup | 3 |
| Census Block | 3009 |
| Census Tract | 306003 |
Source: Contra Costa County records · APN 068-511-015-7
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 | Company Name on File |
|---|---|
| Mailing Address | 381 TUCKER AVE, ALAMEDA, CA 94501-3099 |
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Apr 15, 2015 · Amount on Record |
| Deed Sale | Apr 15, 2015 · Amount on Record |
| Prior Sale | Apr 11, 2011 · Amount on Record |
| Deed Doc Number | 201570472 |
| 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 | $692,615 (+2%) Land $288,077 Building $404,538 | |
| 2025 | $7,794.00 (+4.96%) Additional exemption filed | $679,035 (+4.04%) Land $282,429 Building $396,606 |
| 2023 | $7,426.00 (+1.63%) Additional exemption filed | $652,669 Land $271,463 Building $381,206 |
| 2022 | $7,307.00 |
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