Contra Costa County property record for 20 Diane Ct, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,857 sqft · built 2004 |
| Lot Size | 0.154 acres (6,716 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $524,500 (Feb 2005) |
| Tax Bill | $11,130 (2025) |
| Deeds & Mortgages | Apr 2022 Mortgage Sep 2022 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 033-070-122-8 |
| Primary APN | 033-070-122-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,857 sqft Living Area |
| 1st Floor Area | 1,154 sqft |
| 2nd Floor Area | 1,703 sqft |
| Year Built | Built 2004 |
|---|---|
| Effective Year Built | Effective 2005 |
| Lot Area | 6,716 sqft (0.154 acres) |
| Garage Type | Attached |
| Garage Area | 483 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 20 DIANE CT |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-2786 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8765 L5 |
| Legal Subdivision | SUBDIVISION 8765 |
| Legal Tract | 8765 |
| Legal Lot Number | 5 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 302012 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 20 DIANE CT, OAKLEY, CA 94561-2786 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Date | Document |
|---|---|
| Apr 21, 2022 | Deed of Trust, Mortgage · Conventional Mortgage ROCKET MORTGAGE LLC |
| Sep 23, 2022 | Deed of Trust, Mortgage · Line of Credit FIGURE LENDING LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 24, 2005 · Amount on Record |
| Deed Sale | Feb 24, 2005 · Amount on Record |
| Deed Document Number | 200562176 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 20 DIANE CT, OAKLEY, CA 94561-2786 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Name | Verified Name |
|---|---|
| Address | 20 DIANE CT, OAKLEY, CA 94561-2786 |
| Document Number | 0000069342 |
|---|---|
| Date | Apr 21, 2022 |
| Instrument | 2022-069342 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 1, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 20 DIANE CT, OAKLEY, CA 94561-2786 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Address | 20 DIANE CT, OAKLEY, CA 94561-2786 |
| Document Number | 0000142999 |
|---|---|
| Date | Sep 23, 2022 |
| Instrument | 2022-142999 |
| Name | FIGURE LENDING LLC |
|---|---|
| Type | Mortgage Company |
| Address | CHARLOTTE, NC 28277 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 22, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
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 | $745,568 (+2%) Land $255,913 Building $489,655 | |
| 2025 | $11,130.00 (+3.45%) | $730,950 (+4.04%) Land $250,896 Building $480,054 |
| 2023 | $10,759.00 (+1.56%) | $702,568 Land $241,154 Building $461,414 |
| 2022 | $10,594.00 |
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 | 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 64% of the US · lower than 78% of California |
|---|---|
| Wildfire Likelihood | 0.04% 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 352 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 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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