San Mateo County property record for 42 Serrano Dr, Atherton, CA 94027 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 6 Beds |
| Bathrooms | 5.5 Baths |
| Year Built | Built 1926 |
| Square Footage | 5,800 sqft Living Area |
| Lot Size | 39,585 sqft (0.909 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $400,000 (1993) |
| Tax Bill | $61,095.00 (2025) |
| Primary APN | 059-281-090 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 5.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 14 Rooms |
| Building Area | 5,800 sqft Living Area |
| 1st Floor | 1,310 sqft 1st Floor |
| 2nd Floor | 4,490 sqft 2nd Floor |
| Family Room | Family Room |
| Stories | 2 Stories |
| Study | Study |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1926 |
|---|---|
| Effective Year Built | Effective 1926 |
| Exterior Material | Stucco Exterior |
| Roof Material | Tile Roof |
| Lot Area | 39,585 sqft (0.909 acres) |
| Depth X Width | 157 ft x 264 ft Depth x Width |
| Parking Spaces | 2 Parking Spaces |
| Garage Area | 640 sqft Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Central Heating |
| Sewage | Municipal Sewage |
| Water Source | Commercial Water Source |
| Street Address | 42 SERRANO DR |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-3934 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 5 BLOCK 1 ATHERTON OAKS RSM 16/10 11 TOWN OF ATHERTON |
| Legal Subdivision | ATHERTON OAKS |
| Legal Block | 1 |
| Legal Lot Number | 5 |
| Jurisdiction | SAN MATEO CA |
| Minor Civil Division | SAN MATEO |
| Census Blockgroup | 4 |
| Census Block | 4006 |
| Census Tract | 611400 |
Source: San Mateo County records · APN 059-281-090
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 | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Date | Document |
|---|---|
| Feb 22, 2021 | Intrafamily Transfer, Transfer |
| Feb 22, 2021 | Intrafamily Transfer, Transfer |
| Feb 22, 2021 | Intrafamily Transfer, Transfer |
| Feb 22, 2021 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Dec 03, 1993 · Amount on Record |
| Deed Sale | Dec 03, 1993 · Amount on Record |
| Deed Doc Number | 1993209274 |
| Last Transfer Date | Feb 12, 2021 |
| Transfer Doc | 0000029326 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 22, 2021 |
| Property Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Number | 0000029325 |
| Map Reference | MB 16 PG 10&11 |
| Instrument Date | Feb 12, 2021 |
| Instrument | 2021-029325 |
| Transaction Type | Transfer |
| Record Updated | Aug 09, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 22, 2021 |
| Property Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Number | 0000029328 |
| Map Reference | MB 16 PG 10&11 |
| Instrument Date | Feb 12, 2021 |
| Instrument | 2021-029328 |
| Transaction Type | Transfer |
| Record Updated | Jun 07, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 22, 2021 |
| Property Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Number | 0000029326 |
| Map Reference | MB 16 PG 10&11 |
| Instrument Date | Feb 12, 2021 |
| Instrument | 2021-029326 |
| Transaction Type | Transfer |
| Record Updated | Aug 09, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Feb 22, 2021 |
| Property Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
| Document Number | 0000029327 |
| Map Reference | MB 16 PG 10&11 |
| Instrument Date | Feb 12, 2021 |
| Instrument | 2021-029327 |
| Transaction Type | Transfer |
| Record Updated | Aug 09, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 42 SERRANO DR, ATHERTON, CA 94027-3934 |
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 and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $5,585,846 (+2%) Land $1,914,140 Building $3,671,706 | ||
| 2025 | $61,095.00 (+2.78%) Homeowner's exemption | $5,476,321 (+4.04%) Land $1,876,608 Building $3,599,713 | |
| 2023 | $59,440.00 (+4.95%) Homeowner's exemption | $5,263,671 Land $1,803,738 Building $3,459,933 | $8,823,240 |
| 2022 | $56,637.00 |
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