San Mateo County property record for 211 Polhemus Ave, Atherton, CA 94027 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 6.5 ba · 11,150 sqft · built 2015 |
| Lot Size | 1.02 acres (44,795 sqft) |
| Owner | Company Name on File |
| Last Sale | $7,500,000 (Sep 2014) |
| Tax Bill | $162,580 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 070-040-210 |
| Primary APN | 070-040-210 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 6.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 16 Rooms |
| Stories | 2 Stories |
| Building Area | 11,150 sqft Living Area |
| 1st Floor Area | 4,080 sqft |
| 2nd Floor Area | 2,962 sqft |
| Basement Area | 4,108 sqft |
| Finished Basement | 4,108 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2015 |
|---|---|
| Effective Year Built | Effective 2015 |
| Lot Area | 44,795 sqft |
| Lot Dimensions | 213 ft deep x 201 ft wide |
| Garage Area | 441 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 211 POLHEMUS AVE |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-5408 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 2 STERN OAKS RSM 36/19 TOWN OF ATHERTON |
| Legal Subdivision | STERN OAKS |
| Legal Lot Number | 2 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 611400 |
Source: San Mateo County records · APN 070-040-210
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 | 2965 WOODSIDE RD, WOODSIDE, CA 94062-2443 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 09, 2014 · Amount on Record |
| Deed Sale | Sep 09, 2014 · Amount on Record |
| Prior Sale | Oct 15, 2013 · Amount on Record |
| Deed Document Number | 201481465 |
| Prior Transfer Date | Aug 01, 2013 |
| Prior Transfer Doc | 0000116423 |
| Record Updated | Sep 20, 2026 |
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 | $14,921,190 (+2%) Land $8,201,183 Building $6,720,007 | |
| 2025 | $162,580.00 (+2.82%) | $14,628,619 (+4.04%) Land $8,040,376 Building $6,588,243 |
| 2023 | $158,120.00 (+2.85%) | $14,060,574 Land $7,728,159 Building $6,332,415 |
| 2022 | $153,734.00 |
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 | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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 160 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: AT&T, Etheric Communications, LLC., Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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