Contra Costa County property record for 5100 Trailridge Ct, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,745 sqft · built 2001 |
| Lot Size | 0.182 acres (7,940 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $325,500 (Oct 2001) |
| Tax Bill | $5,946 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-320-010-6 |
| Primary APN | 055-320-010-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,745 sqft Living Area |
| 1st Floor Area | 1,190 sqft |
| 2nd Floor Area | 1,555 sqft |
| Year Built | Built 2001 |
|---|---|
| Effective Year Built | Effective 2001 |
| Lot Area | 7,940 sqft (0.182 acres) |
| Garage Type | Attached |
| Garage Area | 470 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5100 TRAILRIDGE CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8065 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7377 L456 |
| Legal Tract | 7377 |
| Legal Lot Number | 456 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 355118 |
5100 Trailridge Ct is owned by two individuals who bought it in October 2001.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 36082 PIZARRO DR, FREMONT, CA 94536-5419 |
| Owner Type | Individual |
| Vesting | Community Property |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Oct 10, 2001 · Amount on File |
| Deed Sale | Oct 10, 2001 · Amount on File |
| Deed Document Number | 2001304923 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 5100 Trailridge Ct was $5,946.
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 | $508,232 (+2%) Land $143,135 Building $365,097 | |
| 2025 | $5,946.00 | $498,268 Land $140,329 Building $357,939 |
| 2023 | $5,604.00 (+1.56%) | $478,922 Land $134,881 Building $344,041 |
| 2022 | $5,518.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 5100 Trailridge Ct in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 5100 Trailridge Ct is low, with a 0.05% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.05% 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 611 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: T-Mobile, Unwired.
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