San Mateo County property record for 540 Middlefield Rd, Atherton, CA 94027 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 2,160 sqft · built 1951 |
| Lot Size | 1 acres (43,560 sqft) |
| Owner | Individual Name on File |
| Last Sale | $850,000 (Jun 1998) |
| Tax Bill | $17,763 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 061-281-120 |
| Primary APN | 061-281-120 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Building Area | 2,160 sqft Living Area |
| 1st Floor Area | 2,160 sqft |
| Family Room | Family Room |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Lot Area | 43,560 sqft |
| Lot Dimensions | 217 ft deep x 200 ft wide |
| Garage Area | 470 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 540 MIDDLEFIELD RD |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-3414 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 2 OAKWOOD MANOR RSM 31/31 TOWN OF ATHERTON |
| Legal Subdivision | OAKWOOD MANOR |
| Legal Lot Number | 2 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 611500 |
Source: San Mateo County records · APN 061-281-120
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 | Individual Name on File |
|---|---|
| Mailing Address | 540 MIDDLEFIELD RD, ATHERTON, CA 94027-3414 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 11, 1998 · Amount on Record |
| Deed Sale | Jun 11, 1998 · Amount on Record |
| Deed Document Number | 199889191 |
| Last Transfer Date | Mar 20, 2001 |
| Transfer Doc | 0000042178 |
| 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 | Menlo Park City Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,384,374 (+2%) Land $692,187 Building $692,187 | ||
| 2025 | $17,763.00 (+5.19%) Homeowner's exemption | $1,357,230 (+4.04%) Land $678,615 Building $678,615 | |
| 2023 | $16,886.00 (+2.53%) Homeowner's exemption | $1,304,528 Land $652,264 Building $652,264 | $3,649,680 |
| 2022 | $16,469.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| 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; lenders make the official flood determination.
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