Contra Costa County property record for 103 Sonora Ct, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 4,197 sqft · built 2002 |
| Lot Size | 0.312 acres (13,593 sqft) |
| Owner | Company Name on Record |
| Last Sale | $465,000 (Aug 2009) |
| Tax Bill | $8,861 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 041-320-007-2 |
| Primary APN | 041-320-007-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 4,197 sqft Living Area |
| 1st Floor Area | 2,583 sqft |
| 2nd Floor Area | 1,614 sqft |
| Year Built | Built 2002 |
|---|---|
| Effective Year Built | Effective 2003 |
| Lot Area | 13,593 sqft (0.312 acres) |
| Garage Type | Attached |
| Garage Area | 623 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 103 SONORA CT |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-3953 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | P-1 |
| Legal Description | T7467 L7 |
| Legal Tract | 7467 |
| Legal Lot Number | 7 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 302013 |
Source: Contra Costa County records, 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 Record |
|---|---|
| Mailing Address | 103 SONORA CT, OAKLEY, CA 94561-3953 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 28, 2009 · Amount on Record |
| Deed Sale | Aug 28, 2009 · Amount on Record |
| Prior Sale | May 1, 2003 · Amount on Record |
| Deed Document Number | 2009207370 |
| Last Transfer Date | Aug 26, 2016 |
| Transfer Doc | 0000180646 |
| 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 | Oakley City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $612,218 (+2%) Land $137,578 Building $474,640 | |
| 2025 | $8,861.00 (+4.11%) | $600,215 (+4.04%) Land $134,881 Building $465,334 |
| 2023 | $8,511.00 (+1.88%) | $576,910 Land $129,645 Building $447,265 |
| 2022 | $8,354.00 |
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
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 98.4% 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 | DIABLO WATER DISTRICT serves 47,158 people · EPA ID CA0710007 |
|---|---|
| Water Source | Purchased surface water from RANDALL-BOLD WATER TREATMENT PLANT |
| Last State Inspection | Jan 2024 |
| Also Mapped Here | CONTRA COSTA WATER DISTRICT |
| Lead | 2 ppb (2020–2022) 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 187 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 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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