San Mateo County property record for 51 James Ave, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 4,438 sqft · built 1950 |
| Lot Size | 1.15 acres (50,214 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,742,500 (Jan 1995) |
| Tax Bill | $35,519 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 061-132-030 |
| Primary APN | 061-132-030 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Stories | 1 Story |
| Building Area | 4,438 sqft Living Area |
| 1st Floor Area | 2,180 sqft |
| Family Room | Family Room |
| Study | Study |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Contemporary |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Tile |
| Lot Area | 50,214 sqft |
| Lot Dimensions | 294 ft deep x 170 ft wide |
| Garage Area | 460 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 51 JAMES AVE |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-2056 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | LOT 7 BLOCK 15 LINDENWOOD MAP NO 4 RSM 29/20 21 TOWN OF ATHERTON |
| Legal Subdivision | LINDENWOOD MAP NO 4 |
| Legal Block | 15 |
| Legal Lot Number | 7 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 611500 |
51 James Ave is owner-occupied and held in a trust since June 1998.
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 Trust Names on File |
|---|---|
| Mailing Address | 51 JAMES AVE, ATHERTON, CA 94027-2056 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 13, 1995 · Amount on File |
| Deed Sale | Jan 13, 1995 · Amount on File |
| Deed Document Number | 19953901 |
| Last Transfer Date | Jun 4, 1998 |
| Transfer Doc | 0000111538 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 51 James Ave was $35,519 with a homeowner's exemption.
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 | Menlo Park City Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $3,043,962 (+2%) Land $1,492,719 Building $1,551,243 | ||
| 2025 | $35,519.00 Homeowner's exemption | $2,984,277 Land $1,463,450 Building $1,520,827 | |
| 2023 | $33,841.00 (+2.46%) Homeowner's exemption | $2,868,397 Land $1,406,623 Building $1,461,774 | $6,073,470 |
| 2022 | $33,028.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 51 James Ave in Zone X, an area of minimal flood risk.
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 |
| Nearby Flood Policies | 2 in force |
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 51 James Ave 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 | 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 299 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 · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Etheric Networks, Sonic Telecom.
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