San Mateo County property record for 70 Serrano Dr, Atherton, CA 94027 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 4.5 Baths |
| Year Built | Built 1937 |
| Square Footage | 5,630 sqft Living Area |
| Lot Size | 39,035 sqft (0.896 acres) |
| Garage | 860 sqft |
| Last Sale | $11,500,000 (2017) |
| Tax Bill | $147,282.00 (2025) |
| Primary APN | 059-281-110 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 10 Rooms |
| Building Area | 5,630 sqft Living Area |
| 1st Floor | 2,320 sqft 1st Floor |
| Family Room | Family Room |
| Stories | 1 Stories |
| Study | Study |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1937 |
| Architectural Style | Ranch Style |
| Exterior Material | Wood Exterior |
| Construction Type | Wood Construction |
| Roof Material | Composition Shingle Roof |
| Lot Area | 39,035 sqft (0.896 acres) |
| Depth X Width | 196 ft x 248 ft Depth x Width |
| Parking Spaces | 3 Parking Spaces |
| Garage Area | 860 sqft Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Central Heating |
| Street Address | 70 SERRANO DR |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-3934 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 3 BLOCK 1 ATHERTON OAKS RSM 16/10 11 TOWN OF ATHERTON |
| Legal Subdivision | ATHERTON OAKS |
| Legal Block | 1 |
| Legal Lot Number | 3 |
| Jurisdiction | SAN MATEO CA |
| Minor Civil Division | SAN MATEO |
| Census Blockgroup | 4 |
| Census Block | 4006 |
| Census Tract | 611400 |
Source: San Mateo County records · APN 059-281-110
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 | 2 Company Names on File |
|---|---|
| Mailing Address | 70 SERRANO DR, ATHERTON, CA 94027-3934 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 30, 2017 · Amount on Record |
| Deed Sale | May 30, 2017 · Amount on Record |
| Prior Sale | Mar 12, 2009 · Amount on Record |
| Deed Doc Number | 201746315 |
| Prior Transfer Date | Dec 15, 2005 |
| Prior Transfer Doc | 0000087056 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | May 30, 2017 |
| Property Address | 70 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Number | 0000046315 |
| Map Reference | MAP16 PG10&11 |
| Instrument Date | May 16, 2017 |
| Instrument | 2017-046315 |
| Transaction Type | Transfer |
| Record Updated | Aug 09, 2021 |
| Title Company | LAWYERS TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded Values by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 70 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Number | 0000046316 |
|---|---|
| Date | May 30, 2017 |
| Instrument | 2017-046316 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Type | Adjustable Rate Mortgage (ARM) |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 01, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.5% |
| Type Change Date | Aug 01, 2022 |
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Index | 1-Month LIBOR |
| Max Rate | 9.95% |
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 | Redwood City Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $13,613,667 (+2%) Land $8,345,771 Building $5,267,896 | |
| 2025 | $147,282.00 (+2.73%) | $13,346,733 (+4.04%) Land $8,182,129 Building $5,164,604 |
| 2023 | $143,365.00 (+4.96%) | $12,828,465 Land $7,864,408 Building $4,964,057 |
| 2022 | $136,588.00 |
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