San Mateo County property record for 101 Atherton Ave, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 3,560 sqft · built 1910 |
| Lot Size | 1.85 acres (80,596 sqft) |
| Owner | Trust Name on File |
| Last Sale | $272,000 (Jun 2015) |
| Tax Bill | $8,853 (2025) |
| Deeds & Mortgages | Sep 2022 Transfer Nov 2017 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 070-211-510 |
| Primary APN | 070-211-510 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,560 sqft Living Area |
| Gross Area | 4,560 sqft |
| 1st Floor Area | 2,590 sqft |
| 2nd Floor Area | 970 sqft |
| Basement Area | 1,000 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Lot Area | 80,596 sqft |
| Garage Area | 810 sqft |
| Parking Spaces | 3 Parking Spaces |
| Old Parcel Number | 070211510 |
|---|---|
| Street Address | 101 ATHERTON AVE |
| City | ATHERTON |
| State | CA |
| Zip | 94027-4020 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PTN OF LOT 5 VALP ARAISO PARK RSM 19/10 |
| Legal Subdivision | VALP ARAISO PARK |
| Legal Lot Number | 5 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 611400 |
101 Atherton Ave is held in a trust since September 2022.
Source: San Mateo County records, as of July 15, 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 | Trust Name on File |
|---|---|
| Mailing Address | 101 ATHERTON AVE, ATHERTON, CA 94027-4020 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Sep 8, 2022 | Intrafamily Transfer, Transfer |
| Nov 20, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Nov 20, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 25, 2015 · Amount on File |
| Deed Sale | Jun 25, 2015 · Amount on File |
| Deed Document Number | 201566187 |
| Last Transfer Date | Sep 1, 2022 |
| Transfer Doc | 0000065913 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Sep 8, 2022 |
| Property Address | 101 ATHERTON AVE, ATHERTON, CA 94027-4020 |
| Document Number | 0000065913 |
| Instrument Date | Sep 1, 2022 |
| Instrument | 2022-065913 |
| Transaction Type | Transfer |
| Record Updated | Sep 8, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1960 THE ALAMEDA STE 200, 200, SAN JOSE, CA 95126-1451 |
| Mail Care Of | RICHARD B GULLEN |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Nov 20, 2017 |
| Property Address | 101 ATHERTON AVE, ATHERTON, CA 94027-4020 |
| Document Number | 0000103200 |
| Instrument Date | Nov 1, 2017 |
| Instrument | 103200 |
| Transaction Type | Transfer |
| Record Updated | Jan 3, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 101 ATHERTON AVE ATHERTON CA 940274020, ATHERTON, CA 94027-4020 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Nov 20, 2017 |
| Property Address | 101 ATHERTON AVE, ATHERTON, CA 94027-4020 |
| Document Number | 0000103199 |
| Instrument Date | Oct 24, 2017 |
| Instrument | 103199 |
| Transaction Type | Transfer |
| Record Updated | Jan 3, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 101 ATHERTON AVE ATHERTON CA 940274020, ATHERTON, CA 94027-4020 |
The 2025 property tax bill for 101 Atherton Ave was $8,853.
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 | $544,369 (+2%) Land $195,780 Building $348,589 | ||
| 2025 | $8,853.00 | $533,696 Land $191,942 Building $341,754 | |
| 2023 | $8,380.00 | $512,974 Land $184,490 Building $328,484 | $4,546,080 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 101 Atherton Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1998.
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 | 2 in force |
| Nearby Flood Claims | 2 (1998) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
| Claims by Event |
|
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 101 Atherton 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 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 | 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 117 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 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, T-Mobile.
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