Contra Costa County property record for 4880 Dawson Dr, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,567 sqft · built 1983 |
| Lot Size | 0.136 acres (5,917 sqft) |
| Owner | Individual Name on File |
| Last Sale | $170,000 (Aug 1999) |
| Tax Bill | $3,907 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-451-019 |
| Primary APN | 035-451-019 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,567 sqft Living Area |
| 1st Floor Area | 783 sqft |
| 2nd Floor Area | 784 sqft |
| Year Built | Built 1983 |
|---|---|
| Effective Year Built | Effective 1984 |
| Lot Area | 5,917 sqft (0.136 acres) |
| Garage Type | Attached |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4880 DAWSON DR |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-1911 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T06055 L0031 B |
| Legal Subdivision | 6055 |
| Legal Tract | 06055 |
| Legal Lot Number | 31 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4005 |
| Census Tract | 302005 |
Source: Contra Costa County records · APN 035-451-019
Assessment roll updated July 14, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 4880 DAWSON DR, OAKLEY, CA 94561-1911 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Sole Owner |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 27, 1999 · Amount on Record |
| Deed Sale | Aug 27, 1999 · Amount on Record |
| Deed Document Number | 1999229693 |
| Last Transfer Date | Dec 20, 2001 |
| Transfer Doc | 0000406521 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $266,481 (+2%) Land $57,988 Building $208,493 | |
| 2025 | $3,907.00 (+2.82%) | $261,256 (+4.04%) Land $56,851 Building $204,405 |
| 2023 | $3,800.00 (+0.72%) | $251,114 Land $54,645 Building $196,469 |
| 2022 | $3,773.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
Based on FCC filings for 656 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system CA0710007, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | DIABLO WATER DISTRICT serves 47,158 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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