Contra Costa County property record for 4780 Bayside Way, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,398 sqft · built 1993 |
| Lot Size | 0.07 acres (3,045 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,769 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-740-089-4 |
| Primary APN | 035-740-089-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,398 sqft Living Area |
| 1st Floor Area | 751 sqft |
| 2nd Floor Area | 647 sqft |
| Year Built | Built 1993 |
|---|---|
| Effective Year Built | Effective 1993 |
| Lot Area | 3,045 sqft (0.07 acres) |
| View / Lot | Canal |
| Garage Type | Attached |
| Garage Area | 388 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 4780 BAYSIDE WAY |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-3242 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7365 L89 |
| Legal Tract | 7365 |
| Legal Lot Number | 89 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2032 |
| Census Tract | 302007 |
4780 Bayside Way is owned and occupied by an individual.
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4780 BAYSIDE WAY, OAKLEY, CA 94561-3242 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4780 Bayside Way was $3,769 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 | $237,638 (+2%) Land $70,717 Building $166,921 | |
| 2025 | $3,769.00 Homeowner's exemption | $232,980 Land $69,331 Building $163,649 |
| 2023 | $3,659.00 (+0.94%) Homeowner's exemption | $223,936 Land $66,640 Building $157,296 |
| 2022 | $3,625.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4780 Bayside Way in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.
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 | 8 in force |
| Nearby Flood Claims | 1 (1998) |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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.
Wildfire risk around 4780 Bayside Way is low, with a 0.01% annual chance of wildfire.
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 | 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 240 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 Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures