Contra Costa County property record for 495 Helen Ave, Lafayette, CA 94549
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,006 sqft · built 1952 |
| Lot Size | 0.276 acres (12,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $325,000 (Aug 1997) |
| Tax Bill | $8,042 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 237-121-014-3 |
| Primary APN | 237-121-014-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,006 sqft Living Area |
| 1st Floor Area | 1,302 sqft |
| Basement Area | 704 sqft |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1958 |
| Lot Area | 12,000 sqft (0.276 acres) |
| Garage Type | Attached |
| Garage Area | 1,160 sqft |
| Parking Spaces | 4 Parking Spaces |
| Street Address | 495 HELEN AVE |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-5438 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LAFAYETTE VALLEY ESTATES #3 LOT 127 |
| Legal Subdivision | LAFAYETTE VALLEY ESTATES #3 |
| Legal Lot Number | 127 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 351200 |
495 Helen Ave is owned and occupied by two individuals who bought it in August 1997.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 495 HELEN AVE, LAFAYETTE, CA 94549-5438 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Aug 29, 1997 · Amount on File |
| Deed Sale | Aug 29, 1997 · Amount on File |
| Deed Document Number | 1997158643 |
| Prior Transfer Date | May 30, 1996 |
| Prior Transfer Doc | 0000112626 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 495 HELEN AVE, LAFAYETTE, CA 94549-5438 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE |
| Name | Verified Name |
|---|---|
| Address | 495 HELEN AVE, LAFAYETTE, CA 94549-5438 |
| Document Number | 0000107944 |
|---|---|
| Date | Apr 9, 2021 |
| Instrument | 2021-107944 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Apr 1, 2051 |
The 2025 property tax bill for 495 Helen Ave was $8,042 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 | Lafayette City |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Lafayette Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $561,354 (+2%) Land $293,970 Building $267,384 | |
| 2025 | $8,042.00 Homeowner's exemption | $550,348 Land $288,206 Building $262,142 |
| 2023 | $7,748.00 (+1.6%) Homeowner's exemption | $528,978 Land $277,015 Building $251,963 |
| 2022 | $7,626.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 495 Helen Ave in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1980.
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 File median of 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 5 (1980–1995) |
| Claims Outside the SFHA | 1 of 5 |
| Most Recent Claim | Jan 1995 · Severe Winter Storms, Flooding, Landslides, Mud Flows |
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 495 Helen Ave is moderate, ranking above 51% of the US, with a 0.09% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 51% of the US · lower than 70% of California |
|---|---|
| Wildfire Likelihood | 0.09% 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 187 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures