San Mateo County property record for 337 Walsh Rd, Atherton, CA 94027 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 6.5 ba · 10,317 sqft · built 2010 |
| Lot Size | 1.07 acres (46,634 sqft) |
| Owner | Company Name on File |
| Last Sale | $17,150,000 (May 2024) |
| Tax Bill | $193,072 (2025) |
| Deeds & Mortgages | Oct 2020 Line of Credit Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 074-040-320 |
| Primary APN | 074-040-320 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 6.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 10,317 sqft Living Area |
| Gross Area | 11,042 sqft |
| 1st Floor Area | 4,365 sqft |
| 2nd Floor Area | 1,725 sqft |
| Basement Area | 4,952 sqft |
| Finished Basement | 4,227 sqft |
| Unfinished Basement | 725 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 2010 |
|---|---|
| Effective Year Built | Effective 2010 |
| Lot Area | 46,634 sqft |
| Lot Dimensions | 190 ft deep x 245 ft wide |
| View / Lot | Corner |
| Garage Type | Basement |
| Garage Area | 725 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 337 WALSH RD |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-6436 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 6 LEVISON ACRES RSM 67/31 |
| Legal Subdivision | LEVISON ACRES |
| Legal Lot Number | 6 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 611400 |
Source: San Mateo County records · APN 074-040-320
Assessment roll updated July 15, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 337 WALSH RD, ATHERTON, CA 94027-6436 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
| Date | Document |
|---|---|
| Oct 20, 2020 | Deed of Trust, Mortgage · Line of Credit FIRST REPUBLIC BANK |
| Oct 20, 2020 | Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | May 28, 2024 · Amount on Record |
| Deed Sale | May 28, 2024 · Amount on Record |
| Prior Sale | Aug 26, 2010 · Amount on Record |
| Deed Document Number | 202427531 |
| Prior Transfer Date | Nov 19, 1978 |
| Prior Transfer Doc | 0000136350 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 337 WALSH RD, ATHERTON, CA 94027-6436 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 337 WALSH RD, ATHERTON, CA 94027-6436 |
| Document Number | 0000113496 |
|---|---|
| Date | Oct 20, 2020 |
| Instrument | 2020-113496 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Oct 26, 2045 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 337 WALSH RD, ATHERTON, CA 94027-6436 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | CHICAGO TITLE |
| Name | Verified Name |
|---|---|
| Address | 337 WALSH RD, ATHERTON, CA 94027-6436 |
| Document Number | 0000113495 |
|---|---|
| Date | Oct 20, 2020 |
| Instrument | 2020-113495 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.5% |
| Type Change Date | Nov 01, 2030 |
| Change Frequency | Monthly |
| Min Rate At Change | 2.95% |
| Index | 1-Year CMT |
| Max Rate | 10.9% |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $17,842,860 (+2%) Land $7,761,384 Building $10,081,476 | |
| 2025 | $193,072.00 (+46.5%) | $17,493,000 (+51.12%) Land $7,609,200 Building $9,883,800 |
| 2024 | $131,788.00 (+1.59%) | |
| 2023 | $129,726.00 (+2.83%) Homeowner's exemption | $11,575,424 Land $5,787,712 Building $5,787,712 |
| 2022 | $126,155.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816114003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 10 individual NFIP policies nearby |
| Nearby Flood Policies | 10 in force |
| Nearby Flood Claims | 1 (2022) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Dec 2022, rainfall accumulation, Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Wildfire Risk | Low above 5% of the US · above 3% of California |
|---|---|
| Wildfire Likelihood | About 1 in 9,091 per year |
| Exposure | Direct burnable vegetation at the parcel |
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.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 110 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Race Telecommunications | Fiber | 10,000 / 10,000 |
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
May also be available at this address: Etheric Communications, LLC., Cruzio Internet, Verizon, AT&T, T-Mobile USA, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
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