Contra Costa County property record for 4609 Ridgeline Dr, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,478 sqft · built 2002 |
| Lot Size | 0.126 acres (5,494 sqft) |
| Owner | Company Name on File |
| Last Sale | $370,000 (Oct 2015) |
| Tax Bill | $6,019 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 053-660-049-7 |
| Primary APN | 053-660-049-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,478 sqft Living Area |
| 1st Floor Area | 1,063 sqft |
| 2nd Floor Area | 1,415 sqft |
| Year Built | Built 2002 |
|---|---|
| Effective Year Built | Effective 2002 |
| Lot Area | 5,494 sqft (0.126 acres) |
| Garage Type | Attached |
| Garage Area | 424 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 4609 RIDGELINE DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-9392 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7219 L612 |
| Legal Tract | 7219 |
| Legal Lot Number | 612 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 308002 |
4609 Ridgeline Dr is owned by a company that bought it in October 2015.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 2525 W FRYE RD, 300, CHANDLER, AZ 85224-6287 |
| Owner Type | Company |
| Vesting | Partnership |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 20, 2015 · Amount on File |
| Deed Sale | Oct 20, 2015 · Amount on File |
| Prior Sale | May 14, 2003 · Amount on File |
| Deed Document Number | 2015216083 |
| Prior Transfer Date | Jan 10, 2006 |
| Prior Transfer Doc | 0000017407 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4609 Ridgeline Dr was $6,019.
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 | $507,842 (+2%) Land $147,972 Building $359,870 | |
| 2025 | $6,019.00 | $497,885 Land $145,071 Building $352,814 |
| 2023 | $5,677.00 (+1.54%) | $478,554 Land $139,439 Building $339,115 |
| 2022 | $5,591.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4609 Ridgeline Dr in Zone X, an area of minimal flood risk.
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 | 2 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.
Wildfire risk around 4609 Ridgeline Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 97% of the US · lower than 97.8% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 550 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 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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