Contra Costa County property record for 1884 Mt Conness Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,196 sqft · built 1998 |
| Lot Size | 0.158 acres (6,875 sqft) |
| Owner | Individual Name on File |
| Last Sale | $223,000 (Sep 1999) |
| Tax Bill | $4,371 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-480-024-3 |
| Primary APN | 055-480-024-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,196 sqft Living Area |
| 1st Floor Area | 1,259 sqft |
| 2nd Floor Area | 937 sqft |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1999 |
| Lot Area | 6,875 sqft (0.158 acres) |
| Garage Type | Attached |
| Garage Area | 716 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1884 MOUNT CONNESS WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-7493 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8181 L504 |
| Legal Tract | 8181 |
| Legal Lot Number | 504 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 355120 |
1884 Mt Conness Way is owned and occupied by an individual who bought it in September 1999.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1884 MOUNT CONNESS WAY, ANTIOCH, CA 94531-7493 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
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 | Sep 30, 1999 · Amount on File |
| Deed Sale | Sep 30, 1999 · Amount on File |
| Deed Document Number | 1999260495 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 1884 Mt Conness Way was $4,371 with a homeowner's exemption.
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 | $366,820 (+2%) Land $78,374 Building $288,446 | |
| 2025 | $4,371.00 Homeowner's exemption | $359,629 Land $76,838 Building $282,791 |
| 2023 | $4,107.00 (+1.53%) Homeowner's exemption | $345,666 Land $73,855 Building $271,811 |
| 2022 | $4,045.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1884 Mt Conness Way 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 1884 Mt Conness Way is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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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