Contra Costa County property record for 455 Constantine Ct, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,878 sqft · built 2006 |
| Lot Size | 0.061 acres (2,634 sqft) |
| Owner | Individual Name on File |
| Last Sale | $736,000 (Mar 2015) |
| Tax Bill | $10,562 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 208-740-034-3 |
| Primary APN | 208-740-034-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,878 sqft Living Area |
| 1st Floor Area | 814 sqft |
| 2nd Floor Area | 500 sqft |
| Basement Area | 564 sqft |
| Year Built | Built 2006 |
|---|---|
| Effective Year Built | Effective 2006 |
| Architectural Style | Cluster |
| Lot Area | 2,634 sqft (0.061 acres) |
| Garage Type | Attached |
| Garage Area | 514 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 455 CONSTANTINE CT |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-3520 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8797 L34 |
| Legal Subdivision | LAUDERHILL |
| Legal Tract | 8797 |
| Legal Lot Number | 34 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 345205 |
455 Constantine Ct is owned and occupied by an individual who bought it in March 2015.
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 | 455 CONSTANTINE CT, SAN RAMON, CA 94583-3520 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 3, 2015 · Amount on File |
| Deed Sale | Mar 3, 2015 · Amount on File |
| Prior Sale | Dec 29, 2006 · Amount on File |
| Deed Document Number | 201536130 |
| Prior Transfer Date | Feb 27, 2015 |
| Prior Transfer Doc | 0000036129 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 455 Constantine Ct was $10,562 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 | San Ramon City |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $902,240 (+2%) Land $557,772 Building $344,468 | |
| 2025 | $10,562.00 Homeowner's exemption | $884,550 Land $546,836 Building $337,714 |
| 2023 | $10,171.00 (+0.76%) Homeowner's exemption | $850,203 Land $525,602 Building $324,601 |
| 2022 | $10,094.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 455 Constantine Ct 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 455 Constantine Ct is moderate, ranking above 59% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 59% of the US · lower than 64% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within 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 539 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: AT&T, T-Mobile.
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