San Mateo County property record for 289 Park Ln, Atherton, CA 94027
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 7.5 ba · 11,356 sqft · built 2015 |
| Lot Size | 1.3 acres (56,942 sqft) |
| Owner | Company Name on Record |
| Last Sale | $24,300,000 (Aug 2024) |
| Tax Bill | $268,214 (2025) |
| Deeds & Mortgages | Jan 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 070-342-280 |
| Primary APN | 070-342-280 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 7.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 17 Rooms |
| Stories | 2 Stories |
| Building Area | 11,356 sqft Living Area |
| 1st Floor Area | 4,274 sqft |
| 2nd Floor Area | 3,694 sqft |
| Basement Area | 3,388 sqft |
| Finished Basement | 3,388 sqft |
| Family Room | Family Room |
| Year Built | Built 2015 |
|---|---|
| Effective Year Built | Effective 2015 |
| Lot Area | 56,942 sqft |
| Garage Area | 838 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 289 PARK LN |
|---|---|
| City | ATHERTON |
| State | CA |
| Zip | 94027-5448 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 1.409 AC MOL PTN OF LOT 5 QUILLOTA TRACT RSM 3/60 |
| Legal Subdivision | QUILLOTA TRACT |
| Legal Lot Number | 5 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 611400 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 289 PARK LN, ATHERTON, CA 94027-5448 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 15, 2024 · Amount on Record |
| Deed Sale | Aug 15, 2024 · Amount on Record |
| Prior Sale | Dec 7, 2011 · Amount on Record |
| Deed Document Number | 202442951 |
| Prior Transfer Date | Feb 15, 1995 |
| Prior Transfer Doc | 0000022599 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jan 24, 2018 |
| Property Address | 289 PARK LN, ATHERTON, CA 94027-5448 |
| Document Number | 0000004742 |
| Instrument Date | Jan 22, 2018 |
| Instrument | 4742 |
| Transaction Type | Transfer |
| Record Updated | Feb 21, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Sole Owner |
| Address | 289 PARK LN ATHERTON CA 940275448, ATHERTON, CA 94027-5448 |
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 |
|---|---|---|
| 2026 | $24,786,000 (+2%) Land $13,239,600 Building $11,546,400 | |
| 2025 | $268,214.00 (+70.88%) | $24,300,000 (+74.21%) Land $12,980,000 Building $11,320,000 |
| 2024 | $156,964.00 (+1.89%) | |
| 2023 | $154,046.00 (+2.41%) | $13,948,314 Land $7,786,971 Building $6,161,343 |
| 2022 | $150,420.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
| Flood Insurance Cost | Premium on Record median of 13 policies |
| Nearby Flood Policies | 13 in force |
| Nearby Flood Claims | 2 (1995–1998) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% 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 538 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 · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Cruzio Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: Race Communications, T-Mobile.
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