San Mateo County property record for 70 Alejandra Ave, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 4,950 sqft · built 1947 |
| Lot Size | 1 acres (43,618 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $16,668 (2025) |
| Deeds & Mortgages | Apr 2026 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 070-250-050 |
| Primary APN | 070-250-050 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Stories | 1 Story |
| Building Area | 4,950 sqft Living Area |
| 1st Floor Area | 1,580 sqft |
| 2nd Floor Area | 3,370 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 43,618 sqft |
| Lot Dimensions | 220 ft deep x 198 ft wide |
| Garage Area | 890 sqft |
| Parking Spaces | 4 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 70 ALEJANDRA AVE |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-4107 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1001A |
| Legal Description | ON NWLY LINE OF ALEJANDRA AV COM NELY 583.1FT FR LINE DIVIDING LOTS 2 & 4 PTN OF LOT 2 VALPARAISO PARK RSM 19/10 TOWN OF ATHERTON |
| Legal Subdivision | PARAISO PARK |
| Legal Lot Number | 2,4 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 611400 |
70 Alejandra Ave is owner-occupied and held in a trust since August 1997.
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 | Trust Name on File |
|---|---|
| Mailing Address | 70 ALEJANDRA AVE, ATHERTON, CA 94027-4107 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Aug 29, 1997 |
| Transfer Doc | 0000151891 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Apr 24, 2026 |
| Property Address | 70 ALEJANDRA AVE, ATHERTON, CA 94027-4107 |
| Document Number | 0000021680 |
| Instrument Date | Apr 16, 2026 |
| Instrument | 202621680 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Family Trust, 221 |
| Address | 70 ALEJANDRA AVE, ATHERTON, CA 94027-4107 |
| Document Number | 0000021680, |
|---|---|
| Date | Apr 24, 2026 |
| Instrument | 202621680 |
| Name | BANK OF AMIERCA NA |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Apr 16, 2056 |
| Rate | 6.22% |
|---|---|
| Max Rate | -1% |
The 2025 property tax bill for 70 Alejandra Ave was $16,668 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 | $1,427,195 (+2%) Land $538,274 Building $888,921 | ||
| 2025 | $16,668.00 Homeowner's exemption | $1,399,212 Land $527,720 Building $871,492 | |
| 2023 | $15,846.00 (+2.37%) Homeowner's exemption | $1,344,880 Land $507,229 Building $837,651 | $8,463,150 |
| 2022 | $15,479.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 70 Alejandra Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1998.
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 |
| Nearby Flood Claims | 2 (1998) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
| Claims by Event |
|
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 70 Alejandra Ave 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 | 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 253 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, Race Communications, Sonic Telecom.
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