Contra Costa County property record for 415 W 9th St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,326 sqft · built 1923 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $523,000 (Feb 2026) |
| Tax Bill | $5,657 (2025) |
| Deeds & Mortgages | Feb 2026 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 066-208-009-2 |
| Primary APN | 066-208-009-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,326 sqft Living Area |
| 1st Floor Area | 1,326 sqft |
| Year Built | Built 1923 |
|---|---|
| Effective Year Built | Effective 1929 |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 576 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 415 W 9TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1642 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R2 |
| Legal Description | TOWN OF ANTIOCH LOT 4 BLK 113 |
| Legal Subdivision | ANTIOCH |
| Legal Block | 113 |
| Legal Lot Number | 4 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3058 |
| Census Tract | 305000 |
Source: Contra Costa County records, as of October 13, 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 Individual Names on Record |
|---|---|
| Mailing Address | 26314 WHISPERING WOODS CIR, PLAINFIELD, IL 60585-2586 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 4, 2026 · Amount on Record |
| Deed Sale | Feb 4, 2026 · Amount on Record |
| Prior Sale | Aug 22, 2025 · Amount on Record |
| Deed Document Number | 202611248 |
| Prior Transfer Date | Aug 18, 2005 |
| Prior Transfer Doc | 0000321490 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Feb 4, 2026 |
| Property Address | 415 W 9TH ST, ANTIOCH, CA 94509-1642 |
| Document Number | 0000011248 |
| Instrument Date | Jan 29, 2026 |
| Instrument | 2026- 011248 |
| Transaction Type | Transfer |
| Record Updated | Feb 13, 2026 |
| Title Company | ORANGE COAST TITLE COMPANY, ORANGE COAST TTL CO OF NOCAL |
| 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 |
|---|---|
| Relationship | Right of Survivorship |
| Address | 26314 WHISPERING WOODS CIR, PLAINFIELD, IL 60585-2586 |
| Document Number | 0000011249 |
|---|---|
| Date | Feb 4, 2026 |
| Instrument | 2026- 011249 |
| Name | GENERAL MORTGAGE CAPITAL CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Mar 1, 2056 |
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 | $320,000 (-29.67%) Land $220,000 Building $100,000 | |
| 2025 | $5,657.00 (+424.77%) | $455,000 (+677.98%) Land $300,000 Building $155,000 |
| 2023 | $1,078.00 (+1.03%) Homeowner's exemption | $58,485 Land $23,530 Building $34,955 |
| 2022 | $1,067.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 |
| 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 605 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