Contra Costa County property record for 764 Winterside Cir, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,056 sqft · built 1992 |
| Lot Size | 0.075 acres (3,255 sqft) |
| Owner | Trust Name on File |
| Last Sale | $476,500 (Mar 2002) |
| Tax Bill | $8,812 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 213-720-036-2 |
| Primary APN | 213-720-036-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,056 sqft Living Area |
| 1st Floor Area | 885 sqft |
| 2nd Floor Area | 1,171 sqft |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1992 |
| Architectural Style | Cluster |
| Lot Area | 3,255 sqft (0.075 acres) |
| Garage Type | Attached |
| Garage Area | 410 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 764 WINTERSIDE CIR |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-5233 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-10 |
| Legal Description | T6648 L36 |
| Legal Subdivision | NEWCASTLE |
| Legal Tract | 6648 |
| Legal Lot Number | 36 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 345111 |
764 Winterside Cir is held in a trust since January 2009.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 153 FLYING CLOUD ISLE, FOSTER CITY, CA 94404-1301 |
| 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 Sale | Mar 1, 2002 · Amount on File |
| Deed Sale | Mar 1, 2002 · Amount on File |
| Prior Sale | Dec 13, 1999 · Amount on File |
| Deed Document Number | 200272611 |
| Last Transfer Date | Jan 23, 2009 |
| Transfer Doc | 0000022522 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 764 Winterside Cir was $8,812.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | San Ramon City |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $717,987 (+2%) Land $414,369 Building $303,618 | |
| 2025 | $8,812.00 | $703,910 Land $406,245 Building $297,665 |
| 2023 | $8,478.00 (+1.02%) | $676,578 Land $390,471 Building $286,107 |
| 2022 | $8,392.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 764 Winterside Cir in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 764 Winterside Cir is low, with less than 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 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | Under 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 | 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 686 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T DSL · Fixed Wireless in parts of the area | 100 / 20 |
May also be available: T-Mobile, Verizon.
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