San Mateo County property record for 91 Mandarin Way, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 7 bd · 7.5 ba · 10,522 sqft · built 2014 |
| Lot Size | 1.06 acres (46,490 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $23,000,000 (Dec 2025) |
| Tax Bill | $196,291 (2025) |
| Deeds & Mortgages | Dec 2025 Sale Dec 2025 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 070-031-310 |
| Primary APN | 070-031-310 |
|---|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 7.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 16 Rooms |
| Stories | 2 Stories |
| Building Area | 10,522 sqft Living Area |
| 1st Floor Area | 3,341 sqft |
| 2nd Floor Area | 3,480 sqft |
| Basement Area | 3,701 sqft |
| Finished Basement | 3,701 sqft |
| Family Room | Family Room |
| Year Built | Built 2014 |
|---|---|
| Effective Year Built | Effective 2014 |
| Lot Area | 46,490 sqft |
| Lot Dimensions | 270 ft deep x 165 ft wide |
| Garage Area | 753 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 91 MANDARIN WAY |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-6416 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | LOT 6 CATHAY COURT RSM 50/9 TOWN OF ATHERTON |
| Legal Subdivision | CATHAY COURT |
| Legal Lot Number | 6 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 611400 |
91 Mandarin Way is owned by two individuals who bought it in December 2025.
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 1353 MARTIN AVE, PALO ALTO, CA 94301-3050 |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Dec 2, 2025 | Grant Deed, Transfer LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY |
| Dec 2, 2025 | Grant Deed, Transfer LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 2, 2025 · Amount on File |
| Deed Sale | Dec 2, 2025 · Amount on File |
| Prior Sale | Dec 9, 2014 · Amount on File |
| Deed Document Number | 202565716 |
| Prior Transfer Date | Aug 3, 2012 |
| Prior Transfer Doc | 0000111835 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Dec 2, 2025 |
| Property Address | 91 MANDARIN WAY, ATHERTON, CA 94027-6416 |
| Document Number | 0000065716 |
| Map Reference | MB 50 PG 9 |
| Instrument Date | Nov 25, 2025 |
| Instrument | 2025-065716 |
| Transaction Type | Transfer |
| Record Updated | Dec 31, 2025 |
| Title Company | LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Tax | $25,300.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 1353 MARTIN AVE, PALO ALTO, CA 94301-3050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Dec 2, 2025 |
| Property Address | 91 MANDARIN WAY, ATHERTON, CA 94027-6416 |
| Document Number | 0000065715 |
| Map Reference | MB 50 PG 9 |
| Instrument Date | Nov 18, 2025 |
| Instrument | 2025-065715 |
| Transaction Type | Transfer |
| Record Updated | Dec 31, 2025 |
| Title Company | LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | PO BOX 2652, MENLO PARK, CA 94026-2652 |
The 2025 property tax bill for 91 Mandarin Way was $196,291, up 1.2% from the year before.
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 |
|---|---|---|
| 2026 | $23,000,000 (+29.31%) Land $6,640,000 Building $16,360,000 | |
| 2025 | $196,291.00 (+1.21%) | $17,787,379 Land $10,756,557 Building $7,030,822 |
| 2024 | $193,943.00 (+1.58%) | |
| 2023 | $190,929.00 (+2.83%) | $17,096,675 Land $10,338,868 Building $6,757,807 |
| 2022 | $185,666.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 91 Mandarin Way 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 91 Mandarin Way 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 110 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 |
May also be available: Cruzio, Etheric Networks, GeoLinks, T-Mobile, Verizon.
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