Contra Costa County property record for 21 Mandrake Ct, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,490 sqft · built 2011 |
| Lot Size | 0.226 acres (9,825 sqft) |
| Owner | Trust Name on File |
| Last Sale | $268,500 (Dec 2011) |
| Tax Bill | $8,666 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 034-600-015-1 |
| Primary APN | 034-600-015-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,490 sqft Living Area |
| 1st Floor Area | 1,490 sqft |
| Year Built | Built 2011 |
|---|---|
| Effective Year Built | Effective 2011 |
| Lot Area | 9,825 sqft (0.226 acres) |
| Garage Type | Attached |
| Garage Area | 450 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 21 MANDRAKE CT |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-2311 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T9199 L15 |
| Legal Tract | 9199 |
| Legal Lot Number | 15 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1038 |
| Census Tract | 302014 |
21 Mandrake Ct is owner-occupied and held in a trust since December 2011.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 21 MANDRAKE CT, OAKLEY, CA 94561-2311 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 | Name on Deed |
|---|---|
| Last Sale | Dec 9, 2011 · Amount on File |
| Deed Sale | Dec 9, 2011 · Amount on File |
| Deed Document Number | 2011268317 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 21 Mandrake Ct was $8,666 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 | 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 | $380,592 (+2%) Land $44,835 Building $335,757 | |
| 2025 | $8,666.00 Homeowner's exemption | $373,130 Land $43,956 Building $329,174 |
| 2023 | $8,342.00 (+2.9%) Homeowner's exemption | $358,643 Land $42,250 Building $316,393 |
| 2022 | $8,107.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21 Mandrake 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 | 3 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.
The area around 21 Mandrake Ct has no burnable land within ember reach, so its wildfire risk is not rated.
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 | BRENTWOOD serves 64,513 people · EPA ID CA0710004 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Oct 2024 |
| Also Mapped Here | DIABLO WATER DISTRICT, CONTRA COSTA WATER DISTRICT |
| 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 657 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Sonic Telecom.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures