Contra Costa County property record for 617 Twining Ct, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,249 sqft · built 1993 |
| Lot Size | 0.225 acres (9,800 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $251,000 (Jan 2010) |
| Tax Bill | $3,993 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 068-623-016 |
| Primary APN | 068-623-016 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,249 sqft Living Area |
| 1st Floor Area | 1,446 sqft |
| 2nd Floor Area | 803 sqft |
| Year Built | Built 1993 |
|---|---|
| Effective Year Built | Effective 1993 |
| Lot Area | 9,800 sqft (0.225 acres) |
| Garage Type | Attached |
| Garage Area | 651 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 617 TWINING CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-6530 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7155 L82 |
| Legal Tract | 7155 |
| Legal Lot Number | 82 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2020 |
| Census Tract | 308001 |
Source: Contra Costa County assessment roll, 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 Individual Names on File |
|---|---|
| Mailing Address | 2005 CAMINO RAMON PL, DANVILLE, CA 94526-3070 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jan 28, 2010 · Amount on Record |
| Deed Sale | Jan 28, 2010 · Amount on Record |
| Prior Sale | Oct 27, 2009 · Amount on Record |
| Deed Document Number | 201019010 |
| Prior Transfer Date | May 11, 2005 |
| Prior Transfer Doc | 0000184966 |
| Record Updated | Sep 20, 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 | $330,459 (+2%) Land $50,681 Building $279,778 | |
| 2025 | $3,993.00 (+6.54%) | $323,981 (+4.04%) Land $49,688 Building $274,293 |
| 2023 | $3,748.00 (+1.54%) | $311,402 Land $47,759 Building $263,643 |
| 2022 | $3,691.00 |
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 |
|---|
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 645 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T DSL | 100 / 20 |
May also be available: Verizon.
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