Contra Costa County property record for 31 Seneca Ln, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,437 sqft · built 1985 |
| Lot Size | 0.242 acres (10,530 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $8,710 (2025) |
| Deeds & Mortgages | Apr 2019 Mortgage Aug 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 209-701-013-2 |
| Primary APN | 209-701-013-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,437 sqft Living Area |
| 1st Floor Area | 1,383 sqft |
| 2nd Floor Area | 1,054 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | Cluster |
| Exterior Material | Stucco |
| Roof Material | Wood Shingle |
| Lot Area | 10,530 sqft (0.242 acres) |
| Garage Type | Attached |
| Garage Area | 675 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 31 SENECA LN |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-4305 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T05815 L0040 B |
| Legal Subdivision | SUBDIVISION 5815 |
| Legal Tract | 05815 |
| Legal Lot Number | 40 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 345115 |
31 Seneca Ln is owned and occupied by two individuals.
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 31 SENECA LN, SAN RAMON, CA 94583-4305 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Apr 18, 2019 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Aug 7, 2020 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 31 SENECA LN, SAN RAMON, CA 94583-4305 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIDELITY TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000053516 |
|---|---|
| Date | Apr 18, 2019 |
| Instrument | 2019-053516 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2049 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 31 SENECA LN, SAN RAMON, CA 94583-4305 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | MORTGAGE CONNECT |
| Name | Verified Name |
|---|
| Document Number | 0000165167 |
|---|---|
| Date | Aug 7, 2020 |
| Instrument | 2020-165167 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 241 Months |
| Due | Sep 1, 2040 |
The 2025 property tax bill for 31 Seneca Ln was $8,710 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 | $726,740 (+2%) Land $294,374 Building $432,366 | |
| 2025 | $8,710.00 Homeowner's exemption | $712,491 Land $288,602 Building $423,889 |
| 2023 | $8,382.00 (+0.77%) Homeowner's exemption | $684,827 Land $277,397 Building $407,430 |
| 2022 | $8,318.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 31 Seneca Ln in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2022.
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 |
| Nearby Flood Claims | 1 (2022) |
| Claims Outside the SFHA | 1 of 1 |
| 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.
Wildfire risk around 31 Seneca Ln is high, ranking above 72% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 72% of the US · above 47% of California |
|---|---|
| Wildfire Likelihood | 0.3% 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 126 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 |
May also be available: Etheric Networks.
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