Contra Costa County property record for 505 W 6th St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,246 sqft · built 1888 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | Company Name on File |
| Last Sale | $140,000 (Jan 2011) |
| Tax Bill | $2,606 (2025) |
| Deeds & Mortgages | Nov 2023 Transfer Nov 2023 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 066-193-010-7 |
| Primary APN | 066-193-010-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,246 sqft Living Area |
| 1st Floor Area | 826 sqft |
| 2nd Floor Area | 420 sqft |
| Year Built | Built 1888 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 5,000 sqft (0.115 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Type | Attached |
| Garage Area | 378 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 505 W 6TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1604 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | C1 |
| Legal Description | TOWN OF ANTIOCH LOT 2 BLK 54 |
| Legal Subdivision | ANTIOCH |
| Legal Block | 54 |
| Legal Lot Number | 2 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3052 |
| Census Tract | 305000 |
Source: Contra Costa County records · APN 066-193-010-7
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 | 505 W 6TH ST, ANTIOCH, CA 94509-1604 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Nov 22, 2023 | Intrafamily Transfer, Transfer |
| Nov 22, 2023 | Intrafamily Transfer, Transfer |
| Mar 10, 2022 | Intrafamily Transfer, Transfer · Reverse Mortgage FINANCE OF AMERICA MORTGAGE LLC |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 14, 2011 · Amount on Record |
| Deed Sale | Jan 14, 2011 · Amount on Record |
| Prior Sale | Sep 24, 2010 · Amount on Record |
| Deed Document Number | 201111425 |
| Last Transfer Date | Nov 21, 2023 |
| Transfer Doc | 0000124991 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 22, 2023 |
| Property Address | 505 W 6TH ST, ANTIOCH, CA 94509-1604 |
| Document Number | 0000124991 |
| Instrument Date | Nov 21, 2023 |
| Instrument | 2023-124991 |
| Transaction Type | Transfer |
| Record Updated | Dec 13, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 505 W 6TH ST, ANTIOCH, CA 94509-1604 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 22, 2023 |
| Property Address | 505 W 6TH ST, ANTIOCH, CA 94509-1604 |
| Document Number | 0000125400 |
| Instrument Date | Nov 02, 2023 |
| Instrument | 2023-125400 |
| Transaction Type | Transfer |
| Record Updated | Dec 13, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 505 W 6TH ST, ANTIOCH, CA 94509-1604 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Mar 10, 2022 |
| Property Address | 505 W 6TH ST, ANTIOCH, CA 94509-1604 |
| Document Number | 0000042902 |
| Instrument Date | Jan 26, 2022 |
| Instrument | 2022-042902 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | LAWYERS TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 505 W 6TH ST, ANTIOCH, CA 94509-1604 |
| Document Number | 0000042903 |
|---|---|
| Date | Mar 10, 2022 |
| Instrument | 2022-042903 |
| Name | FINANCE OF AMERICA MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Reverse Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 877 Months |
| Due | Apr 10, 2095 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.71% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | May 01, 2022 |
| Change Frequency | Monthly |
| Index | 1-Year CMT |
| Max Rate | 7.71% |
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 | $185,834 (+2%) Land $71,867 Building $113,967 | |
| 2025 | $2,606.00 (+6.11%) | $182,191 (+4.04%) Land $70,458 Building $111,733 |
| 2023 | $2,456.00 (+4.78%) | $175,119 Land $67,723 Building $107,396 |
| 2022 | $2,344.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| 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 |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: T-Mobile USA, Verizon.
Based on FCC filings for 374 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF ANTIOCH serves 116,781 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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