Contra Costa County property record for 1403 Main St, Oakley, CA 94561
| Property Type | Government / Public Use |
|---|---|
| Details | 3,644 sqft · built 1930 |
| Lot Size | 0.29 acres (12,632 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $713 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 037-090-020-1 |
| Primary APN | 037-090-020-1 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 3,644 sqft Gross Area |
| 1st Floor Area | 3,644 sqft |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1930 |
| Exterior Material | Concrete |
| Construction Type | Concrete |
| Roof Type | Mansard |
| Roof Material | Composition Shingle |
| Lot Area | 12,632 sqft (0.29 acres) |
| Lot Dimensions | 80 ft deep x 159 ft wide |
| Heating System | HVAC |
|---|
| Street Address | 1403 MAIN ST |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561 |
| Property Category | Public Works |
| Property Type | Public Works > Government / Public Use |
| Legal Description | POR SEC 22 T2N R2E |
| Legal Range | 02E |
| Legal Township | 02N |
| Legal Section | 22 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1013 |
| Census Tract | 302005 |
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 | 810 AUTUMN LN, ANTIOCH, CA 94509-2844 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| 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 | $49,507 (+2%) Land $12,042 Building $37,465 | |
| 2025 | $713.00 (+3.33%) | $48,537 (+4.04%) Land $11,806 Building $36,731 |
| 2023 | $690.00 (+1.32%) | $46,654 Land $11,349 Building $35,305 |
| 2022 | $681.00 |
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 94% of the US · lower than 96% 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 246 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 |
May also be available: AT&T, T-Mobile.
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