Contra Costa County property record for 4 Windsor Ave, Kensington, CA 94708
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1.5 ba · 1,425 sqft · built 1945 |
| Lot Size | 0.106 acres (4,600 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $2,745 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 572-130-001-9 |
| Primary APN | 572-130-001-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,425 sqft Living Area |
| 1st Floor Area | 705 sqft |
| 2nd Floor Area | 720 sqft |
| Year Built | Built 1945 |
|---|---|
| Effective Year Built | Effective 1945 |
| Lot Area | 4,600 sqft (0.106 acres) |
| Garage Type | Attached |
| Garage Area | 304 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 4 WINDSOR AVE |
|---|---|
| City | KENSINGTON |
| State | CA |
| Zip | 94708-1041 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | BERKELEY HIGHLANDS TERR 1 4 |
| Legal Subdivision | BERKELEY HLNDS TERRACE |
| Legal Block | 4 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 392000 |
4 Windsor Ave is owner-occupied and held in a trust since April 1996.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4 WINDSOR AVE, KENSINGTON, CA 94708-1041 |
| 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 Transfer Date | Apr 4, 1996 |
| Transfer Doc | 0000068137 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4 Windsor Ave was $2,745 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | West Contra Costa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $87,953 (+2%) Land $41,167 Building $46,786 | |
| 2025 | $2,745.00 Homeowner's exemption | $86,229 Land $40,360 Building $45,869 |
| 2023 | $2,651.00 (+3.15%) Homeowner's exemption | $82,883 Land $38,794 Building $44,089 |
| 2022 | $2,570.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4 Windsor Ave 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 |
| Community Rating System | Class 6 (20% premium discount) |
| 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.
Wildfire risk around 4 Windsor Ave is moderate, ranking above 52% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 52% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 583 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 1,200 / 35 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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