San Mateo County property record for 140 Encinal Ave, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 4.5 ba · 5,020 sqft · built 1979 |
| Lot Size | 1.24 acres (54,373 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,825,000 (Nov 1997) |
| Tax Bill | $34,753 (2025) |
| Deeds & Mortgages | Oct 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 061-350-290 |
| Primary APN | 061-350-290 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 5,020 sqft Living Area |
| 1st Floor Area | 3,940 sqft |
| 2nd Floor Area | 1,080 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1979 |
|---|---|
| Effective Year Built | Effective 1979 |
| Lot Area | 54,373 sqft |
| Garage Area | 1,080 sqft |
| Parking Spaces | 4 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 140 ENCINAL AVE |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-3103 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10000 |
| Legal Description | PARCEL 2 1.243 AC MOL PARCEL MAP VOL 49/61 |
| Legal Subdivision | MENLO PARK VILLA ASSOCIATION |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 611500 |
140 Encinal Ave is owner-occupied and held in a trust since September 2020.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 140 ENCINAL AVE, ATHERTON, CA 94027-3103 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 | Nov 25, 1997 · Amount on File |
| Deed Sale | Nov 25, 1997 · Amount on File |
| Deed Document Number | 1997152987 |
| Last Transfer Date | Sep 30, 2020 |
| Transfer Doc | 0000105038 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Oct 2, 2020 |
| Property Address | 140 ENCINAL AVE, ATHERTON, CA 94027-3103 |
| Document Number | 0000105038 |
| Instrument Date | Sep 30, 2020 |
| Instrument | 105038 |
| Transaction Type | Transfer |
| Record Updated | Nov 4, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 140 ENCINAL AVE ATHERTON CA 940273103, ATHERTON, CA 94027-3103 |
The 2025 property tax bill for 140 Encinal Ave was $34,753 with a homeowner's exemption.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| Municipality | Atherton Town |
| County | San Mateo County |
| Elementary School District | Menlo Park City Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $2,972,378 (+2%) Land $1,486,189 Building $1,486,189 | ||
| 2025 | $34,753.00 Homeowner's exemption | $2,914,098 Land $1,457,049 Building $1,457,049 | |
| 2023 | $33,110.00 (+2.46%) Homeowner's exemption | $2,800,942 Land $1,400,471 Building $1,400,471 | $7,533,720 |
| 2022 | $32,314.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 140 Encinal Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 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 |
| Nearby Flood Policies | 4 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.
Wildfire risk around 140 Encinal Ave is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 95% of the US · lower than 97% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | CALIFORNIA WATER SERVICE - BEAR GULCH private · serves 60,382 people · EPA ID CA4110006 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2025 |
| Lead | 4 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.
Source: FCC Broadband Data Collection, based on 296 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Race Communications Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, GeoLinks, Sonic Telecom, T-Mobile.
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