Contra Costa County property record for 412 C St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,195 sqft · built 1919 |
| Lot Size | 0.057 acres (2,500 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $110,000 (Oct 2011) |
| Tax Bill | $2,034 (2025) |
| Deeds & Mortgages | Jul 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 066-152-002-3 |
| Primary APN | 066-152-002-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,195 sqft Living Area |
| 1st Floor Area | 1,195 sqft |
| Year Built | Built 1919 |
|---|---|
| Effective Year Built | Effective 1935 |
| Lot Area | 2,500 sqft (0.057 acres) |
| Garage Type | Attached |
| Garage Area | 108 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 412 C ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1204 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TOWN OF ANTIOCH POR LOT 12 BLK 64 |
| Legal Subdivision | ANTIOCH |
| Legal Block | 64 |
| Legal Lot Number | 12 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3049 |
| 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 | Individual Name on Record |
|---|---|
| Mailing Address | 412 C ST, ANTIOCH, CA 94509-1204 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 21, 2011 · Amount on Record |
| Deed Sale | Oct 21, 2011 · Amount on Record |
| Prior Sale | Mar 5, 2010 · Amount on Record |
| Deed Document Number | 2011226969 |
| Prior Transfer Date | Feb 22, 1994 |
| Prior Transfer Doc | 0000070229 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 17, 2018 |
| Property Address | 412 C ST, ANTIOCH, CA 94509-1204 |
| Document Number | 0000113378 |
| Instrument Date | Jun 12, 2018 |
| Instrument | 113378 |
| Transaction Type | Transfer |
| Record Updated | Jul 23, 2018 |
| Title Company | TITLE 365 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 6961 PIPER RD BETHEL ISLAND CA 94511, BETHEL ISLAND, CA 94511 |
| Document Number | 113379 |
|---|---|
| Date | Jul 17, 2018 |
| Instrument | 113379 |
| Name | MR COOPER |
|---|---|
| Address | DALLAS, TX 75019 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 16, 2048 |
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 | $140,789 (+2%) Land $53,803 Building $86,986 | |
| 2025 | $2,034.00 (+6.77%) Homeowner's exemption | $138,030 (+4.04%) Land $52,749 Building $85,281 |
| 2023 | $1,905.00 (+1.38%) Homeowner's exemption | $132,671 Land $50,701 Building $81,970 |
| 2022 | $1,879.00 |
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 minimal risk |
|---|---|
| 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 374 locations within half a mile, as of December 31, 2025
| 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, Verizon.
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