Contra Costa County property record for 1012 Doncaster Dr, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,010 sqft · built 1976 |
| Lot Size | 0.142 acres (6,175 sqft) |
| Owner | Company Name on File |
| Last Sale | $345,000 (Aug 2014) |
| Tax Bill | $5,635 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 071-312-011-1 |
| Primary APN | 071-312-011-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,010 sqft Living Area |
| Gross Area | 2,464 sqft |
| 1st Floor Area | 1,080 sqft |
| 2nd Floor Area | 930 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Concrete |
| Roof Material | Wood Shingle |
| Lot Area | 6,175 sqft (0.142 acres) |
| Lot Dimensions | 95 ft deep x 65 ft wide |
| Garage Type | Attached |
| Garage Area | 454 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1012 DONCASTER DR |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-4714 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T04282 L0011 B EX MR |
| Legal Tract | 04282 |
| Legal Lot Number | 11 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 4 |
| Census Block | 4015 |
| Census Tract | 307102 |
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 | Company Name on File |
|---|---|
| Mailing Address | 2525 W FRYE RD, 300, CHANDLER, AZ 85224-6287 |
| Owner Type | Company |
| Vesting | Partnership |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 15, 2014 · Amount on Record |
| Deed Sale | Aug 15, 2014 · Amount on Record |
| Prior Sale | Oct 21, 2011 · Amount on Record |
| Deed Document Number | 2014136702 |
| Prior Transfer Date | Aug 6, 2001 |
| Prior Transfer Doc | 0000238349 |
| 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 | $461,674 (+2%) Land $142,052 Building $319,622 | |
| 2025 | $5,635.00 (+5.13%) | $452,622 (+4.04%) Land $139,267 Building $313,355 |
| 2023 | $5,360.00 (+1.59%) | $435,048 Land $133,860 Building $301,188 |
| 2022 | $5,276.00 |
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 · 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 | 4 in force |
| Nearby Flood Claims | 1 (1989) |
| Most Recent Claim | Sep 1989 · rainfall accumulation |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 561 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 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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