Contra Costa County property record for 1812 C St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 712 sqft · built 1927 |
| Lot Size | 0.116 acres (5,050 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $1,062 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 067-261-001-1 |
| Primary APN | 067-261-001-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 712 sqft Living Area |
| 1st Floor Area | 712 sqft |
| Year Built | Built 1927 |
|---|---|
| Effective Year Built | Effective 1932 |
| Lot Area | 5,050 sqft (0.116 acres) |
| Garage Type | Attached |
| Garage Area | 204 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 1812 C ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-2577 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | SUBN LOT 9 WILLS ADDN LOT 12 BLK A |
| Legal Subdivision | WILLS ADD |
| Legal Block | A |
| Legal Lot Number | 9,12 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2014 |
| Census Tract | 305000 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 300 TATE LN, OAKLEY, CA 94561-3947 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Jun 13, 2006 |
| Transfer Doc | 0000192751 |
| Record Updated | Oct 29, 2026 |
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 | $44,939 (+2%) Land $24,969 Building $19,970 | |
| 2025 | $1,062.00 (+8.81%) | $44,059 (+4.04%) Land $24,480 Building $19,579 |
| 2023 | $976.00 (+0.83%) | $42,350 Land $23,530 Building $18,820 |
| 2022 | $968.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 754 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, 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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures