Contra Costa County property record for 9 Dunes Ct, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,659 sqft · built 1982 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $225,000 (Sep 2000) |
| Tax Bill | $4,365 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 072-193-007-1 |
| Primary APN | 072-193-007-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,659 sqft Living Area |
| 1st Floor Area | 764 sqft |
| 2nd Floor Area | 895 sqft |
| Year Built | Built 1982 |
|---|---|
| Effective Year Built | Effective 1983 |
| Lot Area | 7,500 sqft (0.172 acres) |
| Garage Type | Attached |
| Garage Area | 486 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 9 DUNES CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6049 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T05855 L0158 B |
| Legal Tract | 05855 |
| Legal Lot Number | 158 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 355107 |
Source: Contra Costa County records · APN 072-193-007-1
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 | Individual Name on File |
|---|---|
| Mailing Address | 9 DUNES CT, ANTIOCH, CA 94509-6049 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 22, 2000 · Amount on Record |
| Deed Sale | Sep 22, 2000 · Amount on Record |
| Prior Sale | Aug 31, 1998 · Amount on Record |
| Deed Document Number | 2000205845 |
| Record Updated | Sep 20, 2026 |
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 | $345,792 (+2%) Land $73,761 Building $272,031 | |
| 2025 | $4,365.00 (+5.38%) | $339,013 (+4.04%) Land $72,315 Building $266,698 |
| 2023 | $4,142.00 (+1.52%) | $325,851 Land $69,508 Building $256,343 |
| 2022 | $4,080.00 |
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 Claims | 1 (1983) |
| Most Recent Claim | Feb 1983 · Coastal Storms, Floods, Slides & Tornadoes |
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Indirect 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) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
Based on FCC filings for 376 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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures