Contra Costa County property record for 511 E 18th St, Antioch, CA 94509 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Year Built | Built 1975 |
| Square Footage | 1,655 sqft Living Area |
| Lot Size | 16,552 sqft (0.38 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $52,500 (2017) |
| Tax Bill | $6,215.00 (2025) |
| Primary APN | 065-143-004-3 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Rooms |
|---|---|
| Building Area | 1,655 sqft Living Area |
| 1st Floor | 1,655 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1975 |
| Lot Area | 16,552 sqft (0.38 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 511 E 18TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-2743 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | POR NE QR SEC 19 T2N R2E 0.380 AC |
| Legal Range | 02E |
| Legal Township | 02N |
| Legal Section | 19 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | ANTIOCH-PITTSBURG |
| Census Blockgroup | 1 |
| Census Block | 1012 |
| Census Tract | 306004 |
Source: Contra Costa County records · APN 065-143-004-3
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 511 E 18TH ST, ANTIOCH, CA 94509-2743 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Mar 03, 2021 | Deed of Trust, Mortgage · Commercial Mortgage JERRY LEE SARTAIN |
| Mar 08, 2022 | Deed of Trust, Mortgage · Building or Construction Mortgage MARIA SILVIA MARQUEZ RAMIREZ |
| Jul 26, 2019 | Quit Claim Deed, Transfer · Conventional Mortgage CITADEL SVCNG CORP |
| May 19, 2017 | Grant Deed, Transfer STEWART TITLE, STEWART TITLE/CA |
| Apr 14, 2017 | Quit Claim Deed, Transfer · Conventional Mortgage RATAN LLC |
| Apr 14, 2017 | Quit Claim Deed, Transfer FIDELITY NATIONAL TITLE |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 19, 2017 · Amount on Record |
| Deed Sale | May 19, 2017 · Amount on Record |
| Prior Sale | Oct 08, 2015 · Amount on Record |
| Deed Doc Number | 201787429 |
| Prior Transfer Date | Apr 10, 2006 |
| Prior Transfer Doc | 0000122788 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 511 E 18TH ST, ANTIOCH, CA 94509-2743 |
| Transaction Type | Mortgage |
| Record Updated | Jul 11, 2023 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000064463 |
|---|---|
| Date | Mar 03, 2021 |
| Instrument | 2021-064463 |
| Name | JERRY LEE SARTAIN |
|---|---|
| Type | Private Party |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 511 E 18TH ST, ANTIOCH, CA 94509-2743 |
| Transaction Type | Mortgage |
| Record Updated | Jul 11, 2023 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000041179 |
|---|---|
| Date | Mar 08, 2022 |
| Instrument | 2022-041179 |
| Name | MARIA SILVIA MARQUEZ RAMIREZ |
|---|---|
| Type | Private Party |
| Type | Building or Construction Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 26, 2019 |
| Property Address | 511 E 18TH ST, ANTIOCH, CA 94509-2743 |
| Document Number | 0000116831 |
| Instrument Date | Jul 22, 2019 |
| Instrument | 116831 |
| Transaction Type | Transfer |
| Record Updated | Aug 01, 2019 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 511 E18TH AVE ANTIOCH CA 94509, ANTIOCH, CA 94509 |
| Document Number | 116832 |
|---|---|
| Date | Jul 26, 2019 |
| Instrument | 116832 |
| Name | CITADEL SVCNG CORP |
|---|---|
| Address | IRVINE, CA 92618 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 25, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.24% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 19, 2017 |
| Property Address | 511 E 18TH ST, ANTIOCH, CA 94509-2743 |
| Document Number | 0000087429 |
| Instrument Date | May 16, 2017 |
| Instrument | 87429 |
| Transaction Type | Transfer |
| Record Updated | Jun 16, 2017 |
| Title Company | STEWART TITLE, STEWART TITLE/CA |
| Amount | Amount Recorded |
|---|---|
| Tax | $57.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 511 E 18TH ST ANTIOCH CA 945092743, ANTIOCH, CA 94509-2743 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 14, 2017 |
| Property Address | 511 E 18TH ST, ANTIOCH, CA 94509-2743 |
| Document Number | 0000064659 |
| Instrument Date | Apr 10, 2017 |
| Instrument | 64659 |
| Transaction Type | Transfer |
| Record Updated | May 01, 2017 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 511 E 18TH ST ANTIOCH CA 945092743, ANTIOCH, CA 94509-2743 |
| Document Number | 64660 |
|---|---|
| Date | Apr 14, 2017 |
| Instrument | 64660 |
| Name | RATAN LLC |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 14, 2017 |
| Property Address | 511 E 18TH ST, ANTIOCH, CA 94509-2743 |
| Document Number | 0000064658 |
| Instrument Date | Apr 10, 2017 |
| Instrument | 64658 |
| Transaction Type | Transfer |
| Record Updated | May 01, 2017 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 511 E 18TH ST ANTIOCH CA 945092743, ANTIOCH, CA 94509-2743 |
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 | $490,862 (+2%) Land $191,295 Building $299,567 | |
| 2025 | $6,215.00 (+35.2%) | $481,239 (+31.33%) Land $187,545 Building $293,694 |
| 2023 | $4,597.00 (+1.57%) | $366,437 (+2%) Land $180,263 Building $186,174 |
| 2022 | $4,526.00 | $359,253 Land $176,729 Building $182,524 |
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