Contra Costa County property record for 4123 Donner Ct, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,312 sqft · built 1989 |
| Lot Size | 0.132 acres (5,745 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $240,000 (Mar 2009) |
| Tax Bill | $10,440 (2025) |
| Deeds & Mortgages | Mar 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 052-298-001 |
| Primary APN | 052-298-001 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,312 sqft Living Area |
| 1st Floor Area | 1,276 sqft |
| 2nd Floor Area | 1,036 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1990 |
| Exterior Material | Stucco |
| Roof Material | Tile |
| Lot Area | 5,745 sqft (0.132 acres) |
| Garage Type | Attached |
| Garage Area | 441 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4123 DONNER CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8202 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T6855 L90 |
| Legal Subdivision | SUBDIVISION 6855 |
| Legal Tract | 6855 |
| Legal Lot Number | 90 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 308002 |
4123 Donner Ct is owned and occupied by two individuals who bought it in March 2009.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4123 DONNER CT, ANTIOCH, CA 94531-8202 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Mar 26, 2009 · Amount on File |
| Deed Sale | Mar 26, 2009 · Amount on File |
| Prior Sale | Sep 18, 2008 · Amount on File |
| Deed Document Number | 200964038 |
| Prior Transfer Date | Jan 4, 2007 |
| Prior Transfer Doc | 0000005163 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4123 DONNER CT, ANTIOCH, CA 94531-8202 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TITLE INS |
| Name | Verified Name |
|---|---|
| Address | 4123 DONNER CT, ANTIOCH, CA 94531-8202 |
| Document Number | 0000062806 |
|---|---|
| Date | Mar 2, 2021 |
| Instrument | 2021-062806 |
| Name | CARRINGTON MORTGAGE SERVICES LLC |
|---|---|
| Type | Mortgage Company |
| Address | ANAHEIM, CA 92806 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 1, 2051 |
The 2025 property tax bill for 4123 Donner Ct was $10,440 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 | $315,226 (+2%) Land $39,395 Building $275,831 | |
| 2025 | $10,440.00 Homeowner's exemption | $309,046 Land $38,623 Building $270,423 |
| 2023 | $10,204.00 (+0.52%) Homeowner's exemption | $297,047 Land $37,124 Building $259,923 |
| 2022 | $10,151.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4123 Donner Ct 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 4123 Donner Ct is low, with 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 | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 204 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: Verizon.
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