Contra Costa County property record for 504 E St, Antioch, CA 94509 · Last verified July 2026
| Property Type | Residential > Multi-Unit > Duplex |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 2 Baths |
| Architecture Style | Duplex Single |
| Year Built | Built 1938 |
| Square Footage | 1,608 sqft Living Area |
| Lot Size | 1,650 sqft (0.038 acres) |
| Last Sale | $375,000 (2020) |
| Tax Bill | $5,656.00 (2025) |
| Primary APN | 066-148-002 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Building Area | 1,608 sqft Living Area |
| 1st Floor | 804 sqft 1st Floor |
| 2nd Floor | 804 sqft 2nd Floor |
| Stories | 2 Stories |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1938 |
| Architectural Style | Duplex Single Style |
| Lot Area | 1,650 sqft (0.038 acres) |
| Street Address | 504 E ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1217 |
| Property Usage | Residential Property Usage |
| Type | Residential > Multi-Unit > Duplex |
| Legal Description | TOWN OF ANTIOCH S 33 FT OF LOT 1 BLK 30 |
| Legal Subdivision | ANTIOCH |
| Legal Block | 30 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | ANTIOCH-PITTSBURG |
| Census Blockgroup | 3 |
| Census Block | 3050 |
| Census Tract | 305000 |
Source: Contra Costa County records · APN 066-148-002
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 | 232 B ST, VALLEJO, CA 94590-3021 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Feb 22, 2022 | Deed of Trust, Mortgage · Conventional Mortgage GUILD MORTGAGE CO |
| Nov 06, 2020 | Grant Deed, Transfer · Conventional Mortgage GUILD MORTGAGE COMPANY LLC |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Nov 06, 2020 · Amount on Record |
| Deed Sale | Nov 06, 2020 · Amount on Record |
| Prior Sale | May 31, 1995 · Amount on Record |
| Deed Doc Number | 2020265663 |
| Prior Transfer Date | Jan 10, 2003 |
| Prior Transfer Doc | 0000016649 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 504 E ST, ANTIOCH, CA 94509-1217 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Name | Verified Name |
|---|---|
| Address | 504 AND 506 E STREET, ANTIOCH, CA 94509-1217 |
| Document Number | 0000032299 |
|---|---|
| Date | Feb 22, 2022 |
| Instrument | 2022-032299 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Address | SAN DIEGO, CA 92111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Mar 01, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 06, 2020 |
| Property Address | 504 E ST, ANTIOCH, CA 94509-1217 |
| Document Number | 0000265663 |
| Map Reference | MB A PG 6 |
| Instrument Date | Nov 03, 2020 |
| Instrument | 2020-265663 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded Values by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 5251 MOHICAN WAY, ANTIOCH, CA 94531-8544 |
| Document Number | 0000265664 |
|---|---|
| Date | Nov 06, 2020 |
| Instrument | 2020-265664 |
| Name | GUILD MORTGAGE COMPANY LLC |
|---|---|
| Type | Non-Lending Institution |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2050 |
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 | $414,027 (+2%) Land $215,294 Building $198,733 | |
| 2025 | $5,656.00 (+7.55%) | $405,910 (+4.04%) Land $211,073 Building $194,837 |
| 2023 | $5,259.00 (+1.45%) Homeowner's exemption | $390,150 Land $202,878 Building $187,272 |
| 2022 | $5,184.00 |
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