Contra Costa County property record for 351 Brownstone Rd, Oakley, CA 94561
| Property Type | Federal Property (Exempt) |
|---|---|
| Details | 1,009 sqft · built 1926 |
| Lot Size | 9.31 acres (405,979 sqft) |
| Owner | Company Name on Record |
| Last Sale | $11,250,000 (Nov 2007) |
| Tax Bill | $95 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-190-004-1 |
| Primary APN | 034-190-004-1 |
|---|---|
| Alternative APN |
|
| Building Area | 1,009 sqft |
|---|---|
| 1st Floor Area | 1,009 sqft |
| Year Built | Built 1926 |
|---|---|
| Effective Year Built | Effective 1926 |
| Lot Area | 405,979 sqft |
| Street Address | 351 BROWNSTONE RD |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-3833 |
| Property Category | Public Works |
| Property Type | Public Works > Federal Property (Exempt) |
| Legal Description | POR SE QR SEC 36 T2N R2E 9.32 AC |
| Legal Range | 02E |
| Legal Township | 02N |
| Legal Section | 36 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 303104 |
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 | 92 MERCEDES LN, OAKLEY, CA 94561-4618 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 30, 2007 · Amount on Record |
| Deed Sale | Nov 30, 2007 · Amount on Record |
| Prior Sale | Jun 7, 2004 · Amount on Record |
| Deed Document Number | 2007326719 |
| Prior Transfer Date | May 17, 2004 |
| Prior Transfer Doc | 0000214486 |
| Record Updated | Oct 29, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Oakley City |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Elementary School District | Oakley Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $5,581,566 (+2%) Land $5,581,566 | |
| 2025 | $95.00 | $5,472,124 (+4.04%) Land $5,472,124 |
| 2023 | $95.00 | $5,259,636 Land $5,259,636 |
| 2022 | $95.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 | 1 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.
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 | 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 | 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 84 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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