San Mateo County property record for 11 Sargent Ln, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 4,560 sqft · built 1986 |
| Lot Size | 1 acre (43,904 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $19,615 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 073-261-260 |
| Primary APN | 073-261-260 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 4,560 sqft Living Area |
| 1st Floor Area | 1,710 sqft |
| 2nd Floor Area | 800 sqft |
| Attic | Attic |
| Attic Area | 1,700 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Lot Area | 43,904 sqft |
| Garage Area | 510 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 11 SARGENT LN |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-6425 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | PARCEL 1 1.007 AC MOL PARCEL MAP VOL 20/42 |
| Legal Subdivision | MAP OF MEZES RANCH |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 611400 |
11 Sargent Ln is owned and occupied by two individuals who acquired it in December 1998.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 11 SARGENT LN, ATHERTON, CA 94027-6425 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Dec 28, 1998 |
| Deed Sale | Dec 28, 1998 |
| Deed Document Number | 1998219220 |
| Prior Transfer Date | Dec 29, 1997 |
| Prior Transfer Doc | 0000171698 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 11 Sargent Ln was $19,615.
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 | Las Lomitas Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,663,040 (+2%) Land $859,666 Building $803,374 | ||
| 2025 | $19,615.00 | $1,630,439 Land $842,812 Building $787,627 | |
| 2023 | $19,002.00 (+2.74%) | $1,567,145 Land $810,091 Building $757,054 | $8,345,610 |
| 2022 | $18,496.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 11 Sargent Ln in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2022.
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 |
| Flood Insurance Cost | Premium on File median of 10 policies |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 1 (2022) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 11 Sargent Ln 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 | 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 168 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Cruzio Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Networks, Race Communications.
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