San Mateo County property record for 38 Atherton Ave, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4.5 ba · 6,620 sqft · built 1948 |
| Lot Size | 2.71 acres (118,092 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $7,500,500 (Jun 2005) |
| Tax Bill | $115,872 (2025) |
| Deeds & Mortgages | May 2023 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 070-120-140 |
| Primary APN | 070-120-140 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Stories | 1 Story |
| Building Area | 6,620 sqft Living Area |
| 1st Floor Area | 6,610 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Lot Area | 118,092 sqft |
| Garage Area | 2,280 sqft |
| Parking Spaces | 8 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 38 ATHERTON AVE |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-4019 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | 2.715 AC MOL ON ATHERTON AVE COM 862.25 FT FROM EL CAMINO REAL ACREAGE TOWN OF ATHERTON REDWOOD SCHOOL |
| Legal Subdivision | EL CAMINO REAL |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 4 |
| Census Block | 4014 |
| Census Tract | 611400 |
38 Atherton Ave is owned and occupied by two individuals who bought it in June 2005.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 2208, MENLO PARK, CA 94026-2208 |
| 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 | Jun 17, 2005 · Amount on File |
| Deed Sale | Jun 17, 2005 · Amount on File |
| Deed Document Number | 2005100980 |
| Prior Transfer Date | Dec 26, 1996 |
| Prior Transfer Doc | 0000014704 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 38 ATHERTON AVE, ATHERTON, CA 94027-4019 |
| Transaction Type | Mortgage |
| Record Updated | Jun 8, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | PO BOX 2208, MENLO PARK, CA 94026-2208 |
| Document Number | 0000022857 |
|---|---|
| Date | May 16, 2023 |
| Instrument | 2023-022857 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | May 26, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 38 Atherton Ave was $115,872 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 | Redwood City Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $10,664,182 (+2%) Land $10,521,301 Building $142,881 | |
| 2025 | $115,872.00 Homeowner's exemption | $10,455,081 Land $10,315,001 Building $140,080 |
| 2023 | $112,732.00 (+4.93%) Homeowner's exemption | $10,049,100 Land $9,914,458 Building $134,642 |
| 2022 | $107,431.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 38 Atherton Ave in Zone X, an area of minimal flood risk, though there have been 8 flood claims nearby since 1979.
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 | 7 in force |
| Nearby Flood Claims | 8 (1979–2019) |
| Claims Outside the SFHA | 2 of 8 |
| Most Recent Claim | Jan 2019 · other causes |
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 38 Atherton Ave is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 94% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 283 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Race Communications Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks, T-Mobile.
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