Contra Costa County property record for 531 Riviera Pl, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,842 sqft · built 1977 |
| Lot Size | 0.227 acres (9,900 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $575,000 (Dec 2011) |
| Tax Bill | $8,667 (2025) |
| Deeds & Mortgages | Nov 2017 Mortgage Sep 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 210-681-017-5 |
| Primary APN | 210-681-017-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 1,842 sqft Living Area |
| 1st Floor Area | 1,842 sqft |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1985 |
| Lot Area | 9,900 sqft (0.227 acres) |
| Garage Type | Attached |
| Garage Area | 667 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 531 RIVIERA PL |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-3637 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4441 LOT 98 EX MR |
| Legal Subdivision | SUBDIVISION 4441 |
| Legal Tract | 4441 |
| Legal Lot Number | 98 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 345103 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 531 RIVIERA PL, SAN RAMON, CA 94583-3637 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Nov 30, 2017 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Sep 18, 2019 | Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 6, 2011 · Amount on Record |
| Deed Sale | Dec 6, 2011 · Amount on Record |
| Prior Sale | Dec 2, 2004 · Amount on Record |
| Deed Document Number | 2011264804 |
| Prior Transfer Date | Nov 29, 2011 |
| Prior Transfer Doc | 0000271890 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 531 RIVIERA PL, SAN RAMON, CA 94583-3637 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000225494 |
|---|---|
| Date | Nov 30, 2017 |
| Instrument | 2017-225494 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Dec 1, 2032 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 531 RIVIERA PL, SAN RAMON, CA 94583-3637 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | ORANGE COAST TITLE SAN JOSE |
| Name | Verified Name |
|---|
| Document Number | 0000154132 |
|---|---|
| Date | Sep 18, 2019 |
| Instrument | 2019-154132 |
| Name | OWNING CORPORATION |
|---|---|
| Type | Non-Lending Institution |
| Address | ORANGE, CA 92868 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Oct 1, 2034 |
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 | $736,663 (+2%) Land $596,702 Building $139,961 | |
| 2025 | $8,667.00 (+3.7%) | $722,219 (+4.04%) Land $585,002 Building $137,217 |
| 2023 | $8,358.00 (+0.71%) | $694,177 Land $562,287 Building $131,890 |
| 2022 | $8,299.00 |
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 |
| Flood Insurance Cost | Premium on Record median of 10 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 1 (2022) |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 | Low lower than 64% of the US · lower than 79% of California |
|---|---|
| Wildfire Likelihood | 0.05% 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 350 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
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