Contra Costa County property record for 1012 W 4th St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,104 sqft · built 1900 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Company Name on Record |
| Last Sale | $225,000 (Dec 2017) |
| Tax Bill | $3,432 (2025) |
| Deeds & Mortgages | Dec 2020 Mortgage Jun 2021 Line of Credit + 6 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 066-105-003-9 |
| Primary APN | 066-105-003-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,104 sqft Living Area |
| 1st Floor Area | 864 sqft |
| 2nd Floor Area | 240 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1930 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Carport |
| Garage Area | 230 sqft |
| Carport | Carport |
| Carport Area | 230 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|
| Street Address | 1012 W 4TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1120 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R4 |
| Legal Description | TOWN OF ANTIOCH LOT 10 BLK 16 |
| Legal Subdivision | ANTIOCH |
| Legal Block | 16 |
| Legal Lot Number | 10 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3044 |
| Census Tract | 305000 |
Source: Contra Costa County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | PO BOX 9250, VALLEJO, CA 94591-9250 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Dec 3, 2020 | Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK |
| Jun 28, 2021 | Deed of Trust, Mortgage · Line of Credit FIRST REPUBLIC BANK |
| Jun 25, 2018 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF OR |
| Jun 25, 2018 | Deed of Trust, Mortgage BANK OF OR |
| Jun 25, 2018 | Deed of Trust, Mortgage · Line of Credit BANK OF THE ORIENT |
| Jun 25, 2018 | Deed of Trust, Mortgage BANK OF THE ORIENT |
| May 3, 2018 | Quit Claim Deed, Transfer OTHER |
| Dec 15, 2017 | Grant Deed, Transfer 5 ARCH FUNDING CORP |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 15, 2017 · Amount on Record |
| Deed Sale | Dec 15, 2017 · Amount on Record |
| Prior Sale | Sep 22, 2011 · Amount on Record |
| Deed Document Number | 2017235364 |
| Prior Transfer Date | Nov 21, 2006 |
| Prior Transfer Doc | 0000377840 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE CO |
| Name | Verified Name |
|---|---|
| Address | PO BOX 9250, VALLEJO, CA 94591-9250 |
| Document Number | 0000295429 |
|---|---|
| Date | Dec 3, 2020 |
| Instrument | 2020-295429 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Dec 1, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.95% |
| Type Change Date | Dec 1, 2030 |
| Change Frequency | Monthly |
| Min Rate At Change | 2.95% |
| Index | 1-Year CMT |
| Max Rate | 10.9% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000184158 |
|---|---|
| Date | Jun 28, 2021 |
| Instrument | 2021-184158 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Document Number | 0000103830 |
| Instrument Date | Jun 25, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Jul 18, 2018 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 40 ADMIRAL CALLAGHAN LN #B VALLEJO CA 94591, B, VALLEJO, CA 94591 |
| Document Number | 0000103830 |
|---|---|
| Date | Jun 29, 2018 |
| Instrument | 103830 |
| Name | BANK OF OR |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Document Number | 0000103832 |
| Instrument Date | Jun 25, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Nov 21, 2018 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 140 ADMIRAL CALLAGHAN LN #B VALLEJO CA 945914005, B, VALLEJO, CA 94591-4005 |
| Document Number | 0000103832 |
|---|---|
| Date | Jun 29, 2018 |
| Instrument | 103832 |
| Name | BANK OF OR |
|---|---|
| Type | Bank |
| Address | 100 PINE ST # 600, SAN FRANCISCO, CA 94111-5108 |
| Amount | Amount Recorded |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Document Number | 0000163288 |
| Instrument Date | Jun 25, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Oct 24, 2018 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 140 ADMIRAL CALLAGHAN LN #B VALLEJO CA 945914005, B, VALLEJO, CA 94591-4005 |
| Document Number | 0000163288 |
|---|---|
| Date | Oct 15, 2018 |
| Instrument | 163288 |
| Name | BANK OF THE ORIENT |
|---|---|
| Type | Bank |
| Address | 100 PINE ST # 600, SAN FRANCISCO, CA 94111-5108 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Document Number | 0000163290 |
| Instrument Date | Jun 25, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Nov 22, 2018 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 140 ADMIRAL CALLAGHAN LN #B VALLEJO CA 945914005, B, VALLEJO, CA 94591-4005 |
| Document Number | 0000163290 |
|---|---|
| Date | Oct 15, 2018 |
| Instrument | 163290 |
| Name | BANK OF THE ORIENT |
|---|---|
| Type | Bank |
| Address | 100 FINE ST # 600, SAN FRANCISCO, CA 94111 |
| Amount | Amount Recorded |
|---|
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 3, 2018 |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Document Number | 0000069681 |
| Instrument Date | Apr 30, 2018 |
| Instrument | 69681 |
| Transaction Type | Transfer |
| Record Updated | Nov 20, 2018 |
| Title Company | OTHER |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 1012 W 4TH ST ANTIOCH CA 945091120, ANTIOCH, CA 94509-1120 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 15, 2017 |
| Property Address | 1012 W 4TH ST, ANTIOCH, CA 94509-1120 |
| Document Number | 0000235364 |
| Instrument Date | Dec 11, 2017 |
| Instrument | 2017-235364 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | WESTERN RESOURCES TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1805 NOVATO BLVD STE 8, 8, NOVATO, CA 94947-2934 |
| Investor | Possibly a Property Investor |
| Document Number | 0000235365 |
|---|---|
| Date | Dec 15, 2017 |
| Instrument | 2017-235365 |
| Name | 5 ARCH FUNDING CORP |
|---|---|
| Type | Lending Institution |
| Amount | Amount Recorded |
|---|
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $261,125 (+2%) Land $174,084 Building $87,041 | |
| 2025 | $3,432.00 (+5.67%) | $256,006 (+4.04%) Land $170,671 Building $85,335 |
| 2023 | $3,248.00 (+1.47%) | $246,067 Land $164,045 Building $82,022 |
| 2022 | $3,201.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 1 (2017) |
| Most Recent Claim | Feb 2017 · Severe Winter Storms, Flooding, And Mudslides |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 372 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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