Contra Costa County property record for 145 Winestone Ct, Alamo, CA 94507
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 5,037 sqft · built 1988 |
| Lot Size | 0.792 acres (34,500 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $17,816 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 196-010-038-4 |
| Primary APN | 196-010-038-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 5,037 sqft Living Area |
| 1st Floor Area | 3,778 sqft |
| 2nd Floor Area | 1,259 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1997 |
| Architectural Style | Traditional |
| Exterior Material | Stucco |
| Roof Material | Tile |
| Lot Area | 34,500 sqft (0.792 acres) |
| Garage Type | Attached |
| Garage Area | 894 sqft |
| Parking Spaces | 4 Parking Spaces |
| Porch | Porch |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 145 WINESTONE CT |
|---|---|
| City | ALAMO |
| State | CA |
| Zip | 94507-2780 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20 |
| Legal Description | T6457 L5 |
| Legal Tract | 6457 |
| Legal Lot Number | 5 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 346206 |
145 Winestone Ct is owner-occupied and held in a trust since September 1994.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 145 WINESTONE CT, ALAMO, CA 94507-2780 |
| 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 | Sep 8, 1994 |
| Transfer Doc | 0000227375 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 145 Winestone Ct was $17,816 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 | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,585,338 (+2%) Land $530,519 Building $1,054,819 | |
| 2025 | $17,816.00 Homeowner's exemption | $1,554,254 Land $520,117 Building $1,034,137 |
| 2023 | $17,188.00 (+0.75%) Homeowner's exemption | $1,493,902 Land $499,921 Building $993,981 |
| 2022 | $17,060.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 145 Winestone Ct 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 145 Winestone Ct is moderate, ranking above 48% 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 48% of the US · lower than 71% 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 185 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 |
May also be available: AT&T, Etheric Networks, T-Mobile.
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