San Mateo County property record for 53 de Bell Dr, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,820 sqft · built 1946 |
| Lot Size | 0.749 acres (32,606 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $5,535 (2025) |
| Deeds & Mortgages | Aug 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 061-271-060 |
| Primary APN | 061-271-060 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Building Area | 3,820 sqft Living Area |
| 1st Floor Area | 1,940 sqft |
| 2nd Floor Area | 1,150 sqft |
| Family Room | Family Room |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 1946 |
| Lot Area | 32,606 sqft (0.749 acres) |
| Lot Dimensions | 190 ft deep x 175 ft wide |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 53 DE BELL DR |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-2209 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | LOT 6 MAPLE MANOR RSM 24/39 TOWN OF ATHERTON |
| Legal Subdivision | MAPLE MANOR |
| Legal Lot Number | 6 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 611500 |
53 de Bell Dr is owner-occupied and held in a trust since July 1998.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 53 DE BELL DR, ATHERTON, CA 94027-2209 |
| Occupancy | Owner Occupied |
| 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 | Name on Deed |
|---|---|
| Last Transfer Date | Jul 27, 1998 |
| Transfer Doc | 0000191944 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 53 DE BELL DR, ATHERTON, CA 94027-2209 |
| Document Number | 0000075263 |
| Instrument Date | Aug 27, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Oct 3, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 53 DE BELL DR ATHERTON CA 940272209, ATHERTON, CA 94027-2209 |
| Document Number | 0000075263 |
|---|---|
| Date | Sep 16, 2019 |
| Instrument | 75263 |
| Name | COURT V & ROBIN N LORENZINI |
|---|---|
| Address | 4719 86TH AVE SE, MERCER ISLAND, WA 98040-4326 |
| Amount | Amount on Record |
|---|
The 2025 property tax bill for 53 de Bell Dr was $5,535 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 | $386,608 (+2%) Land $114,752 Building $271,856 | ||
| 2025 | $5,535.00 Homeowner's exemption | $379,028 Land $112,502 Building $266,526 | |
| 2023 | $5,215.00 (+2.34%) Homeowner's exemption | $364,312 Land $108,135 Building $256,177 | $6,190,020 |
| 2022 | $5,096.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 53 de Bell Dr 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 53 de Bell Dr 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 96% of the US · lower than 97.4% 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 167 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Race Communications Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| AT&T Fiber · DSL | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Sonic Telecom, T-Mobile.
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