San Mateo County property record for 1 Altree Ct, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,720 sqft · built 1962 |
| Lot Size | 1 acre (43,769 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $920,000 (Jun 1994) |
| Tax Bill | $20,093 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 061-240-130 |
| Primary APN | 061-240-130 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,720 sqft Living Area |
| 1st Floor Area | 2,720 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 43,769 sqft |
| Lot Dimensions | 212 ft deep x 199 ft wide |
| View / Lot | Corner |
| Garage Area | 775 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1 ALTREE CT |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-2223 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | LOT 7 LESS ELY 6 INCH STRIP ROBLE ESTATES RSM 49/32 |
| Legal Subdivision | ROBLE ESTATES |
| Legal Lot Number | 7 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 611500 |
1 Altree Ct is held in a trust since October 2015.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 1 ALTREE CT, ATHERTON, CA 94027-2223 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 1, 1994 · Amount on File |
| Deed Sale | Jun 1, 1994 · Amount on File |
| Deed Document Number | 199495467 |
| Last Transfer Date | Oct 8, 2015 |
| Transfer Doc | 0000107198 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 1 Altree Ct was $20,093.
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 | $1,594,982 (+2%) Land $797,491 Building $797,491 | ||
| 2025 | $20,093.00 | $1,563,708 Land $781,854 Building $781,854 | |
| 2023 | $19,113.00 (+2.5%) | $1,502,990 Land $751,495 Building $751,495 | $4,323,600 |
| 2022 | $18,646.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1 Altree Ct 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 | 4 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 1 Altree Ct is low, with less than 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 94% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | Under 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 273 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom 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 |
May also be available: Etheric Networks, Race Communications, T-Mobile.
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