Contra Costa County property record for 5010 Westside Dr, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 4,072 sqft · built 2001 |
| Lot Size | 0.566 acres (24,666 sqft) |
| Owner | Company Name on Record |
| Last Sale | $733,000 (Apr 2001) |
| Tax Bill | $12,837 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 211-171-032-9 |
| Primary APN | 211-171-032-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 12 Rooms |
| Stories | 1 Story |
| Building Area | 4,072 sqft Living Area |
| 1st Floor Area | 2,827 sqft |
| Basement Area | 1,245 sqft |
| Year Built | Built 2001 |
|---|---|
| Effective Year Built | Effective 2001 |
| Architectural Style | Cluster |
| Lot Area | 24,666 sqft (0.566 acres) |
| Garage Type | Attached |
| Garage Area | 720 sqft |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 5010 WESTSIDE DR |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-9125 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8013 L75 |
| Legal Tract | 8013 |
| Legal Lot Number | 75 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 345115 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 5010 WESTSIDE DR, SAN RAMON, CA 94583-9125 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 27, 2001 · Amount on Record |
| Deed Sale | Apr 27, 2001 · Amount on Record |
| Deed Document Number | 2001107987 |
| Last Transfer Date | Oct 13, 2016 |
| Transfer Doc | 0000215978 |
| Record Updated | Sep 20, 2026 |
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 | $1,125,818 (+2%) Land $499,507 Building $626,311 | |
| 2025 | $12,837.00 (+3.92%) Homeowner's exemption | $1,103,744 (+4.04%) Land $489,713 Building $614,031 |
| 2023 | $12,353.00 (+0.73%) Homeowner's exemption | $1,060,887 Land $470,698 Building $590,189 |
| 2022 | $12,263.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 | 2 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 77% of the US · above 53% of California |
|---|---|
| Wildfire Likelihood | 0.5% 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 265 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 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: T-Mobile.
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