Contra Costa County property record for 1551 Walnut Ave, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 784 sqft · built 1951 |
| Lot Size | 0.391 acres (17,050 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $2,961 (2025) |
| Deeds & Mortgages | Jan 2018 Transfer Jan 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 051-073-016-1 |
| Primary APN | 051-073-016-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 784 sqft Living Area |
| 1st Floor Area | 784 sqft |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Bungalow |
| Exterior Material | Wood Siding |
| Roof Material | Composition Shingle |
| Lot Area | 17,050 sqft (0.391 acres) |
| Lot Dimensions | 276 ft deep x 62 ft wide |
| Deck Area | Deck Area |
| Cooling System | Wall Unit |
|---|---|
| Heating System | Floor/Wall Furnace |
| Heating Fuel | Gas |
| Sewer | Septic |
| Street Address | 1551 WALNUT AVE |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-7224 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10 |
| Legal Description | VIERA SUBN N 62 FT OF LOT 35 |
| Legal Subdivision | VIERA SUB |
| Legal Lot Number | 35 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 306002 |
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 | 2 Company Names on Record |
|---|---|
| Mailing Address | 4 STONE PNE, ALISO VIEJO, CA 92656-2132 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jan 29, 2018 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Jan 29, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Oct 14, 2017 |
| Transfer Doc | 0000013803 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 29, 2018 |
| Property Address | 1551 WALNUT AVE, ANTIOCH, CA 94509-7224 |
| Document Number | 0000013803 |
| Instrument Date | Oct 14, 2017 |
| Instrument | 13803 |
| Transaction Type | Transfer |
| Record Updated | Feb 2, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 2620 CELAYA CIR SAN RAMON CA 945832018, SAN RAMON, CA 94583-2018 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 29, 2018 |
| Property Address | 1551 WALNUT AVE, ANTIOCH, CA 94509-7224 |
| Document Number | 0000013802 |
| Instrument Date | Oct 14, 2017 |
| Instrument | 13802 |
| Transaction Type | Transfer |
| Record Updated | Feb 2, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 2620 CELAYA CIR SAN RAMON CA 945832018, SAN RAMON, CA 94583-2018 |
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 | $264,414 (+2%) Land $132,796 Building $131,618 | |
| 2025 | $2,961.00 (+4.22%) | $259,231 (+4.04%) Land $130,193 Building $129,038 |
| 2023 | $2,841.00 (+1.72%) | $249,167 Land $125,139 Building $124,028 |
| 2022 | $2,793.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 6 in force |
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 | Low lower than 64% of the US · lower than 78% of California |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | Direct burnable vegetation |
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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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 19 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| AT&T Fiber · Fixed Wireless in parts of the area | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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