San Mateo County property record for 128 Encinal Ave, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,990 sqft · built 1941 |
| Lot Size | 0.765 acres (33,300 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $3,500,000 (Nov 2004) |
| Tax Bill | $56,193 (2025) |
| Deeds & Mortgages | Aug 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 061-350-230 |
| Primary APN | 061-350-230 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,990 sqft Living Area |
| 1st Floor Area | 1,680 sqft |
| 2nd Floor Area | 1,090 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1941 |
| Lot Area | 33,300 sqft (0.765 acres) |
| Lot Dimensions | 180 ft deep x 185 ft wide |
| Garage Area | 720 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 128 ENCINAL AVE |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-3103 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | 0.77 AC ON SELY LINE OF ENCINAL AVE PTN OF LOTS 217 & 218 MENLO PARK VILLA ASSN RSM 2/40 |
| Legal Subdivision | MENLO PARK VILLA |
| Legal Lot Number | 217 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 611500 |
128 Encinal Ave is owner-occupied and held in a trust since November 2016.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 128 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 12, 2004 · Amount on File |
| Deed Sale | Nov 12, 2004 · Amount on File |
| Deed Document Number | 2004223631 |
| Last Transfer Date | Nov 3, 2016 |
| Transfer Doc | 0000119492 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 128 ENCINAL AVE, ATHERTON, CA 94027-3103 |
| Transaction Type | Mortgage |
| Record Updated | Oct 18, 2022 |
| Name | Verified Name |
|---|---|
| Address | 128 ENCINAL AVE, ATHERTON, CA 94027-3103 |
| Document Number | 0000114556 |
|---|---|
| Date | Aug 4, 2021 |
| Instrument | 2021-114556 |
| Name | NEXERA HOLDING LLC |
|---|---|
| Type | Mortgage Company |
| Address | EMERYVILLE, CA 94608 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Sep 1, 2036 |
The 2025 property tax bill for 128 Encinal Ave was $56,193 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 | $4,976,275 (+2%) Land $3,554,485 Building $1,421,790 | ||
| 2025 | $56,193.00 Homeowner's exemption | $4,878,702 Land $3,484,790 Building $1,393,912 | |
| 2023 | $53,583.00 (+2.44%) Homeowner's exemption | $4,689,258 Land $3,349,472 Building $1,339,786 | $5,764,320 |
| 2022 | $52,308.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 128 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 128 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.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures