Contra Costa County property record for 4680 Duarte Ave, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,306 sqft · built 1989 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $578,000 (May 2025) |
| Tax Bill | $7,534 (2025) |
| Deeds & Mortgages | Mar 2026 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-672-005-2 |
| Primary APN | 035-672-005-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,306 sqft Living Area |
| 1st Floor Area | 1,306 sqft |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Attached |
| Garage Area | 486 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 4680 DUARTE AVE |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-2054 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T6865 L50 |
| Legal Subdivision | SUBDIVISION 6865 |
| Legal Tract | 6865 |
| Legal Lot Number | 50 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4006 |
| Census Tract | 302005 |
Source: Contra Costa County assessment roll, 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 2404 HOOFTRAIL WAY, ANTIOCH, CA 94531-8919 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 13, 2025 · Amount on Record |
| Deed Sale | May 13, 2025 · Amount on Record |
| Prior Sale | Jul 15, 2005 · Amount on Record |
| Deed Document Number | 202546835 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4680 DUARTE AVE, OAKLEY, CA 94561-2054 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2026 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 4680 DUARTE AVE, OAKLEY, CA 94561-2054 |
| Document Number | 0000026756 |
|---|---|
| Date | Mar 19, 2026 |
| Instrument | 2026- 026756 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | 1050 WOODWARD AVE, DETROIT, MI 48226 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 1, 2056 |
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 | $589,560 (-1.95%) Land $283,560 Building $306,000 | |
| 2025 | $7,534.00 (+3.05%) | $601,278 (+4.04%) Land $355,303 Building $245,975 |
| 2023 | $7,311.00 (+3.5%) Homeowner's exemption | $577,931 Land $341,507 Building $236,424 |
| 2022 | $7,064.00 |
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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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 645 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 USA Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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